Please note, this is a working document developed …...Likelihood: Potential Hotspot: Preliminary...

Risk Assessment Report - Appendix 6. Water Quality - Surface Water Register of Risk

Comments/Rationale

Risk Risk factor Source of threat

Indicators / Environmental value consequence (Note: only

refer to ANZG when local guidelines are not available for pesticides, heavy metals and

toxicant contaminants.

Assessment unit

Spatial extent of risk Likelihood Consequence Level of

Risk Uncertainty Scope of supporting evidence including consultation; confidence in risk analysis and justification

LM1

Water being of a quality unsuitable

for aquatic ecosystem

environmental value

Elevated levels of

pesticides and other

contaminants

Poor management practices including spray drift, surface water and groundwater contamination, erosion of contaminated soil, inappropriate pesticide or other waste disposal

Concentrations of pesticides and other contaminants that are

outside the range of local water quality guidelines for the flow

condition at time of monitoring. Refer to ANZG if local water

quality guidelines aren't available.

Central Condamine &

South-Western

Surface Water: Condamine

River- Dalby to Condamine

Likely Major Medium Low

Likelihood: Hotspot: Dalby to Condamine has the potential to be impacted by pesticides; Drivers: cropping/horticulture land use; CSG & Coal mining, STPs are present in the area, however impacts from environmentally relevant activities, such as extractive activities and STPs with total daily peak higher than 21EP, are regulated, managed and minimised through the Development Application and Environmental Authority approval process - thus mitigating risk. Data lacking aside from on Condamine River between Dalby & Condamine (DNRM data)Consequence: Major spatial and temporal impacts on aquatic ecosystem; Physiological responses; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support DNRM data.

LM2



environmental value

Elevated levels of nutrients.

Nutrients entering basin water from point and diffuse sources. These sources include animal and human waste, soil and organic matter and fertilisers.

Nutrient values including total nitrogen, oxidised nitrogen,

ammonia, total phosphorous and filtered reactive phosphorous

exceed that of local water quality guidelines for the flow condition

at time of monitoring.

Granite Belt (Stanthorpe) Surface Water Almost

certain Moderate High Low

Likelihood: TN 50th percentile = 735ug/L; TP 50th percentile = 40ug/L . Total nitrogen and total phosphorus concentrations will be addressed by the water quality targets developed for these waters.Consequence: Moderate impact on aquatic ecosystem; Increases risk of eutrophication & associated DO fluctuations.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN N= 482, TP N= 511).

LM3



environmental value

Elevated levels of salinity

The process of mobilisation of salt stores in the landscape and geological redisposition to salinity development, including by:(a) the following processes and activities relating to water flow or water management:(iii) saline surface and shallow groundwater drainage from irrigated agricultural land into surface water systems(iv) irrigation at high salinity risk locations without adequate drainage management; Example: Locations where there is a high risk of recharge to groundwater resulting in saline discharges to surface waters.

Electrical conductivity exceeds that of local water quality

guidelines for the flow condition at time of monitoring.

Granite Belt (Stanthorpe)

Surface Water: Hotspot-

Broadwater Creek

Likely Moderate High Low

Likelihood: Hotspot: Analysis of water quality data for the Granite Belt has shown that Broadwater creek has elevated electrical conductivity relative to the rest of the Granite Belt. The expert panel has identified that irrigation induced salinity is present in the granite belt (Biggs & Powers 2002 Biggs 2010). wwith continuous improvement in irrigation efficiency the risk will decline, but it requires active management; It should be noted that irrigated cropping could increase in this region with increased water supply, if Emu Swamp Dam is constructed for urban water supply for Stanthorpe (expanding population with current supply Storm King Dam under stress during Millennium drought) and for use for irrigation.Consequence: Moderate impacts on aquatic ecosystem; Physiological responses; Death; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors; Behaviour modification; Altered microbial activity (decreases nutrient cycling, primary productivity, algal C food source decreased) [Q-catchments, 2015.].Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld

Water Quality Risk Assessment - Surface Water Register of RiskSupporting Information to the Healthy Waters Management Plan

Risk code

Please note, this is a working document developed to support the risk assesment information present in the HWMPs. As such, this document does not represent a Queensland Governament policy position.


Comments/RationaleWater Quality Risk Assessment - Surface Water Register of RiskSupporting Information to the Healthy Waters Management Plan


WM4



environmental value

Dissolved oxygen

outside of natural range

Consumption of organic matter by microorganisms.

Stratified water storage turning over or a release from below the thermocline.

Eutrophication

Dissolved oxygen that is outside the range of local water quality guidelines for the flow condition at time of monitoring. Refer to

ANZG if local water quality guidelines aren't available.

Lower Balonne

Surface: Localised-

Downstream Beardmore

reservoir and Jack Taylor Weir

Likely Major High Low

Likelihood: Hotspot: Downstream Beardmore reservoir; Beardmore identified as high risk of thermal alteration (DNRM, 2017; NRM, 2002), increasing risk of anoxic conditions at depth; dissolved oxygen 50th percentile = 6.6mg/L; Drivers present: Reservoir large enough in size to become stratified; Multi offtake present (low level off-take and undershot spillway gates) - this reduces the risk to Possible, as the water from depth will mix with the spillway water, which will most likely contain higher dissolved oxygen than the water at depth. The expert panel also identified Jack Taylor Weir as a potential risk for thermal stratification (adequate depth, single level off-take) (NRM, 2002).Consequence: Major impact on aquatic ecosystem - risk of eutrophication increased, oxygen availability critical to species diversity and habitat. Potential for blackwater event.Uncertainty: Low for Beardmore Dam as data supports this likelihood. This risk was also identified by expert local knowledge during internal risk assessment. The uncertainty for Jack Taylor Weir is high as information is not as prevalent in comparison.

LM5



environmental value

Elevated levels of

cyanobacteria.

The combination of factors including little to no flow, stratification in water column, sunlight, phosphorus and nitrogen availability as well as seeding from upstream.

Cyanobacteria exceed that of local water quality guidelines for

the flow condition at time of monitoring. Refer to ANZG if local water quality guidelines

aren't available.

Lower Balonne Surface Water Likely Moderate Medium Medium

Likelihood: Drivers present: Linked to Nutrients, Mostly the risks would stem from upstream; Most land owners in the zone (irrigators) contain their runoff through designed capture of the first 40mm (except in extreme events); Irrigated production predominant around streams, grazing throughout and dryland production throughout; water storages adjacent to irrigated production.Consequence: Moderate impact on aquatic ecosystem- Harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008).Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (N=133); Exceedance of guideline is based on using chlorophyll-a as a surrogate for cyanobacteria (Microcystins).

WM6



environmental value

Water Temperature


Release of water from below the thermocline.

Release of water from large water bodies in winter.

Removal of riparian vegetation.

Reduced flow.




Reduced flow.

Lower Balonne

Surface Water: Localised-

Downstream Beardmore reservoir


Likelihood: Hotspot: Downstream Beardmore reservoir identified as high risk of thermal alteration (DNRM, 2017; NRM, 2002); Temperature 50th percentile = 22oC; Drivers present: Reservoir large enough in size to become stratified; Multi offtake present (low level off-take and undershot spillway gates).Consequence: Major spatial and temporal impacts on aquatic ecosystem; Loss of recruitment opportunities; High temperature reduces dissolved oxygen; Impacts reproduction and respiration rate; Increases susceptibility to disease; Alters food availability.Uncertainty: Low as literature supports high risk of stratification in this reservoir. This risk was also identified by experts during internal risk assessment.

WM7



environmental value

Water Temperature





Reduced flow.

Water temperature that is outside the range of local water quality guidelines for the flow condition at time of monitoring. Refer to


Lower BalonneSurface Water:

Localised- Below Jack Taylor Weir

Possible Major High High

Likelihood: Potential Hotspot: Preliminary risk assessment of thermal water pollution in Queensland, NRM, 2002, identified Jack Taylor Weir as a potential risk for thermal stratification (adequate depth, single level off-take) (NRM, 2002).Consequence: Major spatial and temporal impacts on aquatic ecosystem - loss of recruitment opportunities; high temperature reduces dissolved oxygen; impacts reproduction and respiration rate; Increases susceptibility to disease; Alters food availability.Uncertainty: High as lacking data.

LM8



environmental value







Lower Border Rivers

Surface Water- Localised: Lower

Weir River

Almost certain Moderate High Low

Likelihood: Hotspot: Lower Weir River- Elevated Total Nitrogen (Max 3600ug/L) and Total Phosphorous (Max 1500ug/L); High concentration of irrigated land use throughout catchment.Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations.Uncertainty: Presence of drivers confirmed by local knowledge and land use maps (Qld Globe).

LM9



environmental value

Elevated levels of


contaminants






MaranoaSurface Water:

Localised- Amby Creek

Rare Major Low High

Likelihood: Hotspots: Amby Creek extraction- Basalt Quarry; No data to support local knowledge. Mining is a regulated activity; impacts are regulated, managed and mitigated through the Environmental Authority and Development Approval processes.Consequence: Major spatial and temporal impacts on aquatic ecosystem; Physiological responses; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors.Uncertainty: High as no data to support local knowledge.




LM10



environmental value

Elevated levels of

cyanobacteria.




aren't available.

North-Western Surface Water Almost certain Moderate High Medium

Likelihood: Statistical analysis shows ANZECC Aquatic Ecosystems guideline almost certain to be exceeded- data exceeded guideline value more than 85% of sample occasions; Drivers: Nutrient loading present, although expert knowledge didn't identify any drivers. Total nitrogen and total phosphorus concentrations will be addressed by the water quality targets developed for these waters.Consequence: Moderate impact on aquatic ecosystem- Harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008).Uncertainty: Medium as drivers were not identified as being present by local experts but data sample size is reliable (N=221); Exceedance of guideline is based on using chlorophyll-a as a surrogate for cyanobacteria (Microcystins).

WM11



environmental value

Water Temperature





Reduced flow.



North-WesternSurface Water-

Downstream Chinchilla Weir


Likelihood: Potential Hotspot: Downstream Chinchilla Weir identified as high risk of thermal alteration (DNRM, 2017); Weir deep enough to become stratified; Temperature and depth dependent; No multi-take outlet, releases from below the thermocline.Consequence: Major spatial and temporal impacts on aquatic ecosystem - loss of recruitment opportunities; high temperature reduces dissolved oxygen; impacts reproduction and respiration rate; increases susceptibility to disease; alters food availability.Uncertainty: Low as literature supports high risk of stratification in this reservoir. This risk was also identified by experts during internal risk assessment.

LM12



environmental value


Mobilisation of salt stores in landscape through processes and activities relating to water flow or water management or land management (wetland or dryland salinity). The use of groundwater for irrigation purposes at locations where highly saline upper aquifer water drains to the lower aquifer. The use of water with a high ratio of calcium and magnesium for irrigation with respect to soil degradation (dispersive soils)



South Eastern Surface Water Likely Moderate Medium Low

Likelihood: Headwaters well vegetated (national park)- Lower part of catchment more likely to exceed than upper; Drivers present: grazing & dryland production and minor irrigated production throughout assessment area.Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Sensitive biota in the Upper Condamine; EC 50th percentile = 525uS/cm- Physiological responses; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors; Behaviour modification; Altered microbial activity (decreases nutrient cycling, primary productivity, algal C food source decreased).Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (N=481).

WM13



environmental value

Dissolved oxygen




Eutrophication



Southern/North-Western

Surface Water- Localised:

Downstream Leslie reservoir

North-Western- Hotspot:

Downstream of Chinchilla Weir

Likely Major High Medium

Likelihood: Potential Hotspot: Downstream Leslie reservoir; Reservoir large enough in size to become stratified; Temperature and depth dependent; Downstream dissolved oxygen 50th percentile = 8.9mg/L; No multi-take outlet, releases from below the thermocline. This risk may also be present at North-Western- Hotspot: Downstream of Chinchilla Weir due to potential for stratification as well. Consequence: Major impact on aquatic ecosystem - risk of eutrophication increased, oxygen availability critical to species diversity and habitat. Potential for blackwater event.Uncertainty: Medium as data lacking downstream reservoir (N=6); Identified by experts during internal risk assessment.

WM14



environmental value

Water Temperature





Reduced flow.



Southern


Downstream Leslie reservoir


Likelihood: Potential Hotspot: Downstream Leslie reservoir identified as high risk of thermal alteration (DNRM, 2017); Reservoir large enough in size to become stratified; Temperature and depth dependent; Downstream temperature 50th percentile = 18.2oC; No multi-take outlet, releases from below the thermocline. Consequence: Major spatial and temporal impacts on aquatic ecosystem - loss of recruitment opportunities; high temperature reduces dissolved oxygen; impacts reproduction and respiration rate; increases susceptibility to disease; alters food availability.Uncertainty: Low as literature supports high risk of stratification in this reservoir. This risk was also identified by experts during internal risk assessment.




LM15



environmental value

Elevated levels of

cyanobacteria.




aren't available.

South-Western Surface Water Almost certain Moderate High Medium

Likelihood: Statistical analysis shows ANZECC Aquatic ecosystems guideline almost certain to be exceeded- data exceeded guideline value more than 85% of sample occasions. Total nitrogen and total phosphorus concentrations will be addressed by the water quality targets developed for these waters.Consequence: Moderate impact on aquatic ecosystem- Harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008).Uncertainty: Medium as despite reliable data sample size (N=113) local expert knowledge didn't identify any drivers (no recent blooms at Chinchilla Weir; Low nutrient inputs); Exceedance of guideline is based on using chlorophyll-a as a surrogate for cyanobacteria (Microcystins).

LM16



environmental value







South-Western


Condamine River, gauging

station: 422336A.

Likely Moderate Medium Low

Likelihood: Hotspot: Statistical analysis shows elevated concentrations of Total Nitrogen (Max 3300ug/L) and Total Phosphorous (Max 4900ug/L) in Condamine River at gauging station 422336A- Medium intensity pasture production adjacent to gauging station site. Total nitrogen and total phosphorus concentrations will be addressed by the water quality targets developed for these waters, including local hotspots.Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations.Uncertainty: Low as presence of drivers confirmed by local knowledge and land use maps (Qld Globe).

LM17



environmental value

Dissolved oxygen




Eutrophication

Dissolved oxygen that is outside the range of local water quality guidelines for the flow condition


Upper Balonne Surface Water: Yuleba Creek Possible Major High Medium

Likelihood: Potential Hotspot: Natural blackwater events have occurred in Yuleba Creek- potential risk increase with clearing and development; Drivers present: Linked to sediment justification (grazing land use). Mining is a regulated activity under the Environmental Protection Regulation 2008; impacts are regulated, managed and mitigated through the Environmental Authority and Development Approval processes - thus mitigating risk.Consequence: Major impact on aquatic ecosystem- Risk of eutrophication increased, oxygen availability critical to species diversity & habitat. Potential for blackwater event.Uncertainty: Medium as Dissolved Oxygen data lacking for Yuleba Creek (N=6); Identified by experts during internal risk assessment.

LM18



environmental value

Elevated levels of

cyanobacteria.




aren't available.

Upper Balonne Surface Water Likely Moderate Medium Medium

Likelihood: Statistical analysis shows ANZECC Aquatic ecosystems guideline likely to be exceeded- data exceeded guideline value between 65-84% of sample occasions; Drivers present: Linked to Nutrients, Issue is within the trunk of Upper Balonne River rather than tributaries, Grazing and Cattle feedlots throughout; Mine, STP and effluent disposal facilities - beneficial use (biosolids, CSG water) for irrigation, camps- occurring broad-scale across region. Mining and STPs are regulated activities under the Environmental Protection Regulation 2008; impacts are regulated, managed and mitigated through the Environmental Authority and Development Approval processes - thus mitigating risk.Consequence: Moderate impact on aquatic ecosystem- Harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008).Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (N=240); Exceedance of guideline is based on using chlorophyll-a as a surrogate for cyanobacteria (Microcystins).

LM19



environmental value

Elevated levels of


contaminants






Upper Balonne

Surface Water: Condamine

River- Dalby to Condamine

Likely Major Medium Low

Likelihood: Hotspot: Dalby to Condamine is impacted by pesticides; Drivers: cropping/horticulture land use; CSG & Coal mining, STPs present in the area, however impacts from these activities are regulated, managed and minimised through the Development Application and Environmental Authority approval process - thus mitigating the risk. Data lacking aside from on Condamine River between Dalby & Condamine (DNRM data). Consequence: Major spatial and temporal impacts on aquatic ecosystem; Physiological responses; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support DNRM data.




LM723



environmental value

Water Temperature





Reduced flow.

Water temperature that is outside the range of local water quality guidelines for the flow condition


Upper Balonne Surface Water: Yuleba Creek Unlikely Major Medium High

Likelihood: Although expert local knowledge identified the potential for high water temperature in Yuleba Creek surface waters due to connectivity of the water resource with the Yuleba sand mine and Great Artesian Basin - supporting information was lacking. Data doesn't support this higher temperature (50th = 19.6oC which is approximately 2 degrees lower than other catchments in Maranoa Balonne). Moreover, mining is an activity regulated by the Department of Environment and Science through the Environmental Authority and Development Approval processes - thus mitigating risk.Consequence: Major spatial and temporal impacts on aquatic ecosystem - loss of recruitment opportunities; high temperature reduces dissolved oxygen; impacts reproduction and respiration rate; increases susceptibility to disease; alters food availability.Uncertainty: High as data doesn't support this higher temperature (50th = 19.6oC which is approximately 2 degrees lower than other catchments in Maranoa Balonne - elevated temperatures (greater than 25oC) occur in summer months). Data for Yuleba Creek is quite low (N=36).

WM21

Water being of a quality unsuitable for aquatic ecosystem environmental value

Dissolved oxygen outside of natural range



Eutrophication

Dissolved oxygen that is outside the range of local water quality guidelines for the flow condition at time of monitoring. Upper Border

Rivers


Downstream Glenlyon and Coolmunda

reservoir


Likelihood: Hotspot: Downstream Glenlyon and Coolmunda Dam (L4); dissolved oxygen 50th percentile = 97% saturation and 7.7mg/L; Temperature and depth dependent.Consequence: There is potential for a major impact on aquatic ecosystem - the risk of eutrophication is increased, and oxygen availability is critical to species diversity and habitat. There is potential for a blackwater event.Uncertainty: Both reservoirs become stratified seasonally - this is documented in reports by DNRM (2017).

LM22



environmental value







Upper Border Rivers

Surface Water- Localised: Upper

Weir River

Almost certain Moderate High Low

Likelihood: Hotspot: Upper Weir River- Elevated Total Nitrogen (Max 9700ug/L) and Total Phosphorous (Max 2700ug/L); High concentration of irrigated land use adjacent to Upper Weir River.Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations.Uncertainty: Presence of drivers confirmed by local knowledge and land use maps (Qld Globe).

WM23


Water Temperature outside of natural range




Reduced flow.

Water temperature that is outside the range of local water quality guidelines for the flow condition at time of monitoring. Refer to ANZG if local water quality guidelines aren't available.

Upper Border Rivers


Downstream Glenlyon reservoir


Likelihood: Hotspot: Downstream Glenlyon Dam (L4); temperature 50th percentile = 21.5oC - this system has lower temperature than assessment areas in other basins; Glenlyon is identified as high risk of thermal alteration (DNRM, 2017).Consequence: There is potential for major spatial and temporal impacts on aquatic ecosystem with loss of recruitment opportunities. High temperature reduces dissolved oxygen with impacts on reproduction and respiration rate, increased susceptibility to disease and altered food availability.Uncertainty: Glenlyon Dam becomes strongly stratified seasonally - this is documented in reports by DNRM (2017).

WM24


Water Temperature outside of natural range




Reduced flow.


Upper Border Rivers


Downstream Coolmunda

reservoir

Possible Major High Low

Likelihood: Hotspot: Downstream Coolmunda Dam (L3); temperature 50th percentile = 21.5oC - this system has lower temperature than assessment areas in other basins; Coolmunda is identified as medium risk of thermal alteration (DNRM, 2017).Consequence: There is potential for major spatial and temporal impacts on aquatic ecosystem with loss of recruitment opportunities. High temperature reduces dissolved oxygen with impacts on reproduction and respiration rate, increased susceptibility to disease, and altered food availability.Uncertainty: Coolmunda Dam becomes moderately stratified seasonally - this is documented in reports by DNRM (2017).

LM25



environmental value

Elevated levels of

cyanobacteria.




aren't available.

Upper Moonie


Moonie River @ Flinton

Almost certain Moderate Medium High

Likelihood: Statistical analysis shows ANZECC Aquatic ecosystems guideline almost certain to be exceeded- data exceeded guideline value more than 85% of sample occasions; Hotspots: Moonie River @ Flinton (this is the only site with data); Linked to sediment & nutrients- expert knowledge identified a lack of drivers.Consequence: Moderate impact on aquatic ecosystem- Harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008).Uncertainty: High uncertainty as low sample size (N=7) and local knowledge isn't supported by data; Exceedance of guideline is based on using chlorophyll-a as a surrogate for cyanobacteria (Microcystins).




LM26



environmental value







Upper Moonie Surface Water Almost certain Moderate Medium Medium

Likelihood: Elevated nutrients throughout assessment area increases likelihood: Total Nitrogen (50th percentile = 2000ug/L) and Total Phosphorous (50th percentile = 470ug/L);Total nitrogen and total phosphorus concentrations will be addressed by the water quality targets developed for these waters. Linked to sediment; Drivers present: Vegetated headwaters (Marmadua); Brisbane biosolids used alternative to other fertilisers- expert knowledge identified a lack of drivers. Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations.Uncertainty: Medium as local experts didn't identify drivers, thus data showing elevated nutrient concentrations throughout assessment area contradicts local knowledge (TN: N=57 & TP: N=52).

LM27



environmental value







Central Condamine Surface Water Possible Moderate Medium Low

Likelihood: Elevated nutrients throughout assessment area: Total Nitrogen (50th percentile = 1200ug/L) and Total Phosphorus (50th percentile = 350ug/L); Linked to sediment; Drivers present: High concentration of irrigated & dryland cropping, STP, feedlots, hobby farmers; Urban driven, increase in urban and peri-urban population; Increased broad acre fertiliser use; Feed lots (Beef city etc.); Oakey nutrient issues; Aging septic systems around Cooby Creek. Toowoomba's STP is an environmentally relevant activity regulated by the Department of Environment and Science. Impacts are regulated, managed and minimised through the Development Approval and Environmental Authority process. As a result, potential impacts are minimised.Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN: N=317 & TP: N=882).

LM28


for primary, secondary or visual

recreation environmental value







Central Condamine Surface Water Likely Minor Medium High

Likelihood: Statistical analysis shows NHMRC Recreation guideline likely to be exceeded- data exceeded guideline value between 65-84% of sample occasions; Elevated nutrients throughout assessment area: Total Nitrogen (50th percentile = 1200ug/L) and Total Phosphorus (50th percentile = 350ug/L); Linked to sediment; Drivers present: High concentration of irrigated & dryland cropping, STP, feedlots, hobby farmers; Urban driven, increase in urban and peri-urban population; Increased broad acre fertiliser use; Feed lots; Oakey nutrient issues; Aging septic system around Cooby Creek. Toowoomba's and Warwick's STPs are a environmentally relevant activities regulated by the Department of Environment and Science. Impacts are regulated, managed and minimised through the Development Approval and Environmental Authority process. As a result, any potential water quality impacts are minimised.Consequence: Minor impact on community resource, recreation values and amenity; Algal blooms & related aesthetic impacts (smells); Fish kills.Uncertainty: High as guideline used is based on the concentration of Total Phosphorous and the likelihood of the exceedance of this concentration resulting in a cyanobacteria bloom (temperature and potential of river system to stratify wasn't considered), although drivers present as identified by local experts & land use maps (Qld Globe) support the data (N=1206).

LM29



environmental value





Central Condamine Surface Water Likely Minor Medium Low

Likelihood: Statistical analysis shows ANZECC uplands Aquatic ecosystems guideline likely to be exceeded- data exceeded guideline value between 65-84% of sample occasion; STP on Oakey Creek discharges saline water to river WQ data reflected this (~1000uS/cm); Drivers present: Irrigated production prevalent around Oakey Creek, Condamine River and Kings Creek; Grazing present in 80% of assessment area; Hotspot: Hodgson Creek is similarly high in EC under ambient conditions (~2000uS/cm). Consequence: Minor spatial & temporal impact on aquatic ecosystems- As ambient EC is already elevated (50th percentile = 990uS/cm), sensitive species are unlikely to be present & remaining species will be tolerant to elevated EC's; Physiological responses; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors; Behaviour modification; Altered microbial activity (decreases nutrient cycling, primary productivity, algal C food source decreased).Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (N=1762).




LM30

Water being of a quality unsuitable for irrigation, stock

watering and/or farm water supply

environmental value





Central Condamine Surface Water Possible Moderate Medium Low

Likelihood: Statistical analysis shows ANZG irrigation guideline possibly exceeded- data exceeded guideline value between 35-64% of sample occasions; STP on Oakey Creek discharges saline water to river WQ data reflected this (~1000uS/cm); Drivers present: Intense irrigated production prevalent around Oakey Creek, Condamine River and Kings Creek; Grazing present in 80% of assessment area; Hotspot: Hodgson Creek is similarly high in EC under ambient conditions (~2000uS/cm).Consequence: Significant individual financial impact- Non-salt tolerant species will be impacted, possibly perishing.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (N=1762).

LM31

Water being of a quality unsuitable for aquaculture and/or human consumers of aquatic foods

environmental value

Elevated pathogen

counts

Pathogens entering Basin water from point and diffuse sources. These sources include animal and human waste and sewage discharges

Pathogen values exceed that of local water quality guidelines for


aren't available.

Central Condamine Surface Water Possible Moderate Medium High

Likelihood: Expert local knowledge identified an exceedance of pathogen guidelines as possible; Drivers present: Disposal to land of treated effluent- Lacking E.coli monitoring data; Population growth. Disposal to land of treated effluent is an activity regulated by the Department of Environment and Science under the Environmenta Protectionl Regulation 2008 - thus mitigating risk. Consequence: Significant financial loss and human health risk; Aquatic biota can develop physiological defects; Human health impacted by viruses caused by pathogens.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value and no data to support.

LM32



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Internal risk assessment identified an exceedance of pathogen guidelines as possible; Drivers present: Disposal to land of treated effluent; Irrigated & dryland cropping, hobby farmers; STP's (Toowoomba & Warwick/South Downs); Feed lots; Linked to sediments & nutrients; Oakey nutrient issues; Aging septic systems around Cooby Creek. Toowoomba's and Warwick's STPs are activities regulated by the Department of Environment and Science under the Environmental Protection Regulation 2008. Impacts from these activities are regulated, managed and minimised through the Environmental Authority and Development Approval processes - thus mitigating risk.Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Aquatic biota can develop physiological defects; Mass fatalities; Sensitive species most susceptible (sensitive life history or certain sensitive developmental stages). Uncertainty: High as drivers present but lacking E.coli or any pathogen monitoring data.

LM33



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Internal risk assessment identified an exceedance of pathogen guidelines as possible; Drivers present: Disposal to land of treated effluent; Irrigated & dryland cropping, hobby farmers; STP's (Toowoomba & Warwick/South Downs); Feed lots; Linked to sediments & nutrients; Oakey nutrient issues; Aging septic systems around Cooby Creek. Toowoomba's and Warwick's STPs are activities regulated by the Department of Environment and Science under the Environmental Protection Regulation 2008. Impacts from these activities are regulated, managed and minimised through the Environmental Authority and Development Approval processes - thus mitigating risk. Consequence: Significant financial loss; Viruses caused by pathogens can cause miscarriage, neurological disorders & death in cattle & swine [1].Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.




LM34




Elevated pathogen

counts




aren't available.

Central Condamine Surface Water Unlikely Major Medium High

Likelihood: Internal risk assessment identified an exceedance of pathogen guidelines as possible; Drivers present: Disposal to land of treated effluent; Irrigated & dryland cropping, hobby farmers; STP's (Toowoomba & Warwick/South Downs); Feed lots; Linked to sediments & nutrients; Oakey nutrient issues; Aging septic system around Cooby Creek. Toowoomba's and Warwick's STPs are activities regulated by the Department of Environment and Science under the Environmental Protection Regulation 2008. Impacts from these activities are regulated, managed and minimised through the Environmental Authority and Development Approval processes - thus mitigating risk.Consequence: Major impact on community resource, recreation values and amenity- Human health risk.Uncertainty: High as drivers present but lacking E.coli or any pathogen monitoring data.

LM35



environmental value

Elevated levels of


contaminants








Abandoned mines and

pesticide usage throughout

assessment area

Unlikely Major Medium Medium

Likelihood: Potential hotspots: Many Abandoned Mines are located throughout the assessment unit (Tin- Majority, Tungsten, Molybdenum, Arsenic); High proportion horticulture land; Guideline exceedance considered unlikely, but monitoring is needed to validate this.Consequence: Major spatial and temporal impacts on aquatic ecosystem; Physiological responses; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors.Uncertainty: Medium as pesticide DNRM data provides quantitative evidence for pesticide concentrations adjacent to farmland; Land use maps display abandoned mines and prevalence of horticulture (Qld Globe); Abandoned mines information sourced from DNRM- Abandoned Mines Southern Region and EHP- Disclaimed Mines Working Group.

LM36



environmental value







Lower Balonne Surface Water Likely Minor Medium Low

Likelihood: Elevated nutrients throughout assessment area: Total Nitrogen (50th percentile = 1200ug/L) and Total Phosphorous (50th percentile = 350ug/L); Total nitrogen and toal phospohorous concentrations are addressed by the water quality targtes developed for these waters. Linked to sediment; The QMDB Source Water Quality Model (DNRM 2017) shows cropping land use contributes 25% of TN and 30% of TP to the Balonne system. Drivers present: Irrigated production predominant around streams, grazing and dryland production located throughout region; Water storages adjacent to irrigated production; Effluent evaporation pond at St George.Consequence: Minor spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN: N=274 & TP: N=426).

LM37










Lower Balonne Surface Water Likely Minor Medium High

Likelihood: Statistical analysis shows NHMRC Recreation guideline likely to be exceeded- data exceeded guideline value between 65-84% of sample occasions; Elevated nutrients throughout assessment area: Total Nitrogen (50th percentile = 1300ug/L) and Total Phosphorus (50th percentile = 290ug/L); Total nitrogen and toal phospohorous concentrations are addressed by the water quality targtes developed for these waters. Linked to sediment; The QMDB Source Water Quality Model (DNRM 2017) shows cropping land use contributes 25% of TN and 30% of TP to the Balonne system. Drivers present: Grazing and Cattle feedlots throughout; Effluent evaporation pond at St George.Consequence: Minor impact on community resource, recreation values and amenity; Algal blooms & related aesthetic impacts (smells); Fish kills.Uncertainty: High as guideline used is based on the concentration of Total Phosphorous and the likelihood of the exceedance of this concentration resulting in a cyanobacteria bloom (temperature and potential of river system to stratify wasn't considered), although drivers present as identified by local experts & land use maps (Qld Globe) support the data (TN: N=243 & TP: N=490).




LM38


environmental value

Elevated levels of

suspended matter.

Poor land management practices including poor timing of cultivation, overgrazing, grazing on riverbanks and poor soil conservation practices.

Total Suspended Solids exceed that of local water quality


Lower Balonne Surface Water Likely Minor Medium Low

Likelihood: The QMDB Source Water Quality Model shows catchment is deposition/erosive/transport; Drivers present: Unregulated levee banks causing erosion in the floodplain areas; Irrigated production predominant around streams, grazing throughout and dryland production throughout; Water storages adjacent to irrigated production; Aquaculture isn't a very prevalent industry in Maranoa-Balonne (1x aquaculture farm, south of Surat).Consequence: Medium ambient turbidity 50th percentile = 268NTU. Consequence dependent on species; Minor financial loss- Reduced light penetration; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (N=838).

LM39



environmental value

pH outside natural ranges

Exposure of Potential Acid Sulphate Soils to air.

Acidification of soils from agricultural practices.

Eutrophication leading to excessive plant growth causing high diurnal variation in pH.

pH that is outside the range of local water quality guidelines for

the flow condition at time of monitoring.

Lower Balonne

Groundwater: Localised-

Griman Creek Formation & Excavated channels

throughout catchment

Possible Moderate Medium High

Likelihood: Potential Hotspot: Acidic shallow groundwater along the margins of the Griman Creek Formation; Potential Hotspot: Excavated channels are predisposed to acid saline groundwater and ASS formation- Identified by expert local knowledge.Consequence: Major spatial & temporal impact on aquatic ecosystems: Influences toxicity of other parameters (heavy metals, ammonia etc.). Uncertainty: High as data doesn't support expert local knowledge (Min pH = 6.3, Max pH = 9.7) (N=742).

LM40

Water being of a quality unsuitable for aquatic ecosystem environmental value pH outside

natural ranges

The exposure to the air of soils containing iron sulphide minerals. Note: When iron sulphide minerals are exposed to air natural oxidation processes can result in the release of acid, which can be flushed into Basin water resources.Agricultural practices that lead to the acidification of soils.

pH that is outside the range of local water quality guidelines for the flow

condition at time of monitoring.

Lower Border Rivers

Surface Water Rare Moderate Low Medium

Likelihood: Statistical analysis shows Rare likelihood of exceedance for all EVs; If potential acid sulfate soils are present; poor agricultural land use practices in this region may convert potential acid sulphate soils to actual acid sulphate soils. pH: 50th percentile = 7.5 Alkalinity: 50th percentile = 54mg/L; Likelihood based on possibility of PASS to progress to AASS- if occurs Alkalinity may not be sufficient to buffer pH change. Consequence: Major spatial & temporal impact on aquatic ecosystems; Influences toxicity of other parameters (heavy metals, ammonia etc.); Low alkalinity, limiting buffering capacity.Uncertainty: Medium as is based on local knowledge and likelihood of PASS being converted to AASS

LM41



environmental value

Elevated levels of

suspended matter.

Sediments entering Basin water resources, which is contributed to by:(a) the following land management practices:(ii) overgrazing of catchments and grazing of riverbanks and floodplains; Example: The riparian zone along watercourses kept in permanent vegetation can effectively mitigate the movement of sediment within farmlands and from farmlands



Lower Border Rivers Surface Water Possible Moderate Medium Low

Likelihood: Statistical analysis shows Basin Plan Target application zone A2 guideline possibly exceeded- data exceeded guideline value between 35-64% of sample occasions; High concentration of dryland cropping and grazing throughout catchment. Continuation of best practice in agriculture is required to keep risk low. The QMDB Source Water Quality model (DNRM 2017) shows that 36% of TSS is contributed to stream from grazing land use in the Border Rivers basin. Minimal development anticipated. Less infrastructure construction for the mining development. Unknown risk of it being mobilised. Unregulated levee banks causing erosion in the floodplain areas.Consequence: Moderate impacts on aquatic ecosystem; Reduced light penetration. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM42



environmental value

Dissolved oxygen




Eutrophication



Lower Moonie Surface Water Possible Moderate Medium High

Likelihood: Statistical analysis shows ANZECC Aquatic ecosystems guideline possibly exceeded- data exceeded guideline value between 35-64% of sample occasions; Linked to sediments; No drivers identified by local experts. Consequence: Moderate impact on aquatic ecosystem- Risk of eutrophication increased, oxygen availability critical to species diversity & habitat. Potential for blackwater event.Uncertainty: High as no drivers identified by experts during internal risk assessment & low data sample size (N=29).

LM43

Water being of a quality unsuitable for

aquatic ecosystem environmental value





exceed that of local water quality guidelines for the flow condition at

time of monitoring.

Lower Moonie Surface Water

Almost certain Minor Medium Low

Likelihood: Elevated nutrients throughout assessment area: Total Nitrogen (50th percentile = 1760ug/L) and Total Phosphorous (50th percentile = 485ug/L); Total nitrogen and toal phospohorous concentrations are addressed by the water quality targtes developed for these waters. Linked to sediment; The QMDB Source Water Quality model (DNRM 2017) shows that 30% and 26% of TN and 39% and 21% of TP is contributed to stream from cropping and grazing land uses respectively in the Moonie basin. Drivers present but not as intense as other catchments: Predominantly grazing, dryland cropping & irrigated cropping.Consequence: Minor spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN: N=99 & TP: N=104).




LM44










Lower Moonie Surface Water Almost certain Minor Medium High

Likelihood: Statistical analysis shows NHMRC Recreation guideline almost certain to be exceeded- data exceeded guideline value more than 85% of sample occasions; Total Nitrogen (50th percentile = 1760ug/L) and Total Phosphorous (50th percentile = 485ug/L); Linked to sediment; Drivers present but not as intense as other catchments: Predominantly grazing, dryland cropping & irrigated cropping.Consequence: Minor impact on community resource, recreation values and amenity; Algal blooms & related aesthetic impacts (smells); Fish kills.Uncertainty: High as guideline used is based on the concentration of Total Phosphorous and the likelihood of the exceedance of this concentration resulting in a cyanobacteria bloom (temperature and potential of river system to stratify wasn't considered), although drivers are present and identified by local experts & land use maps (Qld Globe) support the data (TN: N=99 & TP: N=104).

LM45


environmental value

Elevated levels of

suspended matter.


Poor water management practices including rapid drawdown of surface water from a water resource and release of water resulting in riverbank erosion.

Wave wash



Lower Moonie Surface Water Almost certain Minor Medium Low

Likelihood: The QMDB Source Water Quality Model shows catchment is deposition/erosive/transport; Drivers present: grazing, poor land management; Sediment being deposited in waterholes- Unknown risk of it being mobilised (Marshall et al., 2015); Aquaculture isn't a very prevalent industry in Maranoa-Balonne (1x aquaculture farm, south of Surat).Consequence: High ambient turbidity 50th percentile = 400NTU. Consequence dependent on species; Minor financial loss- Reduced light penetration; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (N=247).

LM46



environmental value

Elevated levels of

suspended matter.



Wave wash



Lower Moonie Surface Water Likely Minor Medium Low

Likelihood: Statistical analysis shows Basin Plan Target application zone A2 guideline almost certain to be exceeded- data exceeded guideline value more than 85% of sample occasions; The QMDB Source Water Quality model (DNRM 2017) shows that 33% and 20% of TSS is contributed to stream from grazing and cropping land uses respectively in the Moonie basin. Drivers present: grazing, poor land management; Sediment being deposited in waterholes- Unknown risk of it being mobilised (Marshall et al., 2015).Consequence: High ambient turbidity 50th percentile = 400NTU; Minor spatial & temporal impact on aquatic ecosystems; Reduced light penetration; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (N=247).

LM47



environmental value





MaranoaSurface Water:

Localised- Amby Creek

Rare Moderate Low Medium

Likelihood: Potential Hotspots: Amby Creek (east of Mitchell) quarry and mining development could have risk of point source impacts (Marbango KRA 84 - SPP 2/07 - Quarry Rock Basalt); However, impacts from these regulated activities are regulated, managed and minimised through the Development Application and Environmental Authority approval process.Natural salt spikes occurring in top end of catchment with wet weather.Consequence: Moderate impact on aquatic ecosystem; Exceedance of guideline can result in physiological responses: Loss of sensitive species; Decreases metabolism, feeding & reproduction; Susceptibility to other stressors; Behaviour modification; Altered microbial activity (decreases nutrient cycling, primary productivity, algal C food source decreased).Uncertainty: Medium as expert local knowledge informs risk; Land use maps (Qld Globe) identify location of hotspots.

LM48










North-Western Surface Water Likely Minor Medium High

Likelihood: Elevated nutrients throughout assessment area: Total Nitrogen (50th percentile = 1100ug/L) and Total Phosphorus (50th percentile = 245ug/L); Total nitrogen and toal phospohorous concentrations are addressed by the water quality targtes developed for these waters. Linked to sediment; Drivers present: High concentration of irrigated & dryland cropping.Consequence: Minor impact on community resource, recreation values and amenity; Increases risk of eutrophication.Uncertainty: High as guideline used is based on the concentration of Total Phosphorous and the likelihood of the exceedance of this concentration resulting in a cyanobacteria bloom (temperature and potential of river system to stratify wasn't considered), although drivers present as identified by local experts & land use maps (Qld Globe) support the data (TN: N=171 & TP: N=382).




LM49



environmental value





North-Western Surface Water Possible Moderate Medium Medium

Likelihood: Statistical analysis shows ANZG uplands Aquatic ecosystems guideline possibly exceeded- data exceeded guideline value between 35-64% of sample occasions; Headwaters well vegetated (State Forest)- Lower part of catchment more likely to exceed than upper; Drivers present: grazing & dryland production and minor irrigated production throughout assessment area (excluding state forest); Note: CSG in lower part of catchment- reverse osmosis water discharged to environment for beneficial use.Consequence: Moderate spatial & temporal impact on aquatic ecosystems- Salinity tolerance of Rendall's catfish and wetlands not known; Physiological responses; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors; Behaviour modification; Altered microbial activity (decreases nutrient cycling, primary productivity, algal C food source decreased).Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) support the data (N=570), however uncertainty surrounding the sensitivity of the system.

LM50



environmental value

Elevated levels of

suspended matter.




North-Western Surface Water Possible Moderate Medium Low

Likelihood: Infrastructure development for CSG driving increase however not as extensive as South West Catchments; Proposed mining, CSG wells and hydrological modification occurring and proposed for the area - however regulated activities are managed under the Environmental Protection Regulation 20808, thus mitigating risk. QMDB Source Water Quality model (Davidson, 2018) shows that in the Condamine, 13% of total suspended solids (tonnes/ha) is contributed to stream from cropping. QMDB Source Water Quality model (Davidson, 2018) shows that in the Condamine, 27% of total suspended solids (tonnes/ha) is contributed to stream from grazing.Consequence: Moderate impacts on aquatic ecosystem; Reduced light penetration; Low biological data but there are values to protect (Rendalls catfish, dewfish demonstration reach).Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data. Data is a reliable size N=462

LM51



environmental value





Southern Surface Water Possible Moderate Medium Low

Likelihood: Drivers present: Highly erosive soils; chance of salt expression not due to irrigation.Consequence: Moderate impact on aquatic ecosystem; Relatively low ambient EC for these creeks 50th percentile = 305uS/cm; Exceedance of guideline can result in physiological responses: Loss of sensitive species; Decreases metabolism, feeding & reproduction; Susceptibility to other stressors; Behaviour modification; Altered microbial activity (decreases nutrient cycling, primary productivity, algal C food source decreased).Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data (N= 745).

LM52



environmental value





South-Western Surface Water Possible Moderate Medium Low

Likelihood: Cumulative impact of infrastructure, roads etc. and clearing and developing new irrigation paddocks, exposing saline / sodic soils; Note- Very highly concentrated CSG & Mining in this assessment area; Discharge for CSG water to environment occurs here. Impacts from these regulated activities are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Thus, mitigating risk.Consequence: Moderate impact on aquatic ecosystem- Fairly low ambient EC: 50th percentile = 380uS/cm; Species not adapted to increasing EC; Physiological responses; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors; Behaviour modification; Altered microbial activity (decreases nutrient cycling, primary productivity, algal C food source decreased).Uncertainty: Low as drivers identified by experts & local knowledge support the data (N=221).




LM53



environmental value

Elevated levels of

suspended matter.




South-Western Surface Water Possible Moderate Medium Low

Likelihood: Lots of earthworks in catchment due to CSG, mining and irrigation development and clearing over the next 10 years. Currently highly variable turbid systems (117 mg/L 227 NTU). Sodic dispersive landscapes driving turbidity/erosion; Proposed mining, CSG wells and hydrological modification occurring and proposed for the area - however regulated activities are managed under the Environmental Protection Act 1994. QMDB Source Water Quality model (Davidson, 2018) shows that in the Condamine, 13% of total suspended solids (tonnes/ha) is contributed to stream from cropping. QMDB Source Water Quality model (Davidson, 2018) shows that in the Condamine, 27% of total suspended solids (tonnes/ha) is contributed to stream from grazing.Consequence: Moderate impacts on aquatic ecosystem; Reduced light penetration; Loss of habitat value through smothering. Not much info on prevalence of sediment deposition on ecosystem; Reduced light penetration.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data. Data is a reliable size N=191

LM54










Upper Balonne Surface Water Likely Minor Medium High

Likelihood: Statistical analysis shows NHMRC Recreation guideline likely to be exceeded- data exceeded guideline value between 65-84% of sample occasions; Elevated nutrients throughout assessment area: Total Nitrogen (50th percentile = 1300ug/L) and Total Phosphorus (50th percentile = 290ug/L); Linked to sediment; The QMDB Source Water Quality Model (DNRM 2017) shows cropping land use contributes 25% of TN and 30% of TP to the Balonne system. Drivers present: Grazing and Cattle feedlots throughout; Mine, STP and effluent disposal facilities - beneficial use (biosolids, CSG water) for irrigation, camps- occurring broad-scale across region. Mining, CSG and STP are regulated activities uner the Environmental Protection Regulation 2008. Impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process - thus mitigating risk.Consequence: Minor impact on community resource, recreation values and amenity; Algal blooms & related aesthetic impacts (smells); Fish kills.Uncertainty: High as guideline used is based on the concentration of Total Phosphorous and the likelihood of the exceedance of this concentration resulting in a cyanobacteria bloom (temperature and potential of river system to stratify wasn't considered), although drivers present as identified by local experts & land use maps (Qld Globe) support the data (TN: N=243 & TP: N=490).

LM55


environmental value

Elevated levels of

suspended matter.




Upper Balonne Surface Water Likely Minor Medium Low

Likelihood: Erodible soils- supported by the QMDB Source Water Quality Model; Drivers present: Low riparian vegetation cover, Grazing- majority medium intensity production- high intensity production in southern part of catchment; Yuleba State Forest sand quarry discharge of water to creek under an existing DA (Lot 2/SP197617 is freehold on Surat -Yuleba Rd); Other causes of sedimentation not anticipated. Aquaculture isn't a very prevalent industry in Maranoa-Balonne (1x aquaculture farm, south of Surat).Consequence: Medium ambient turbidity 50th percentile = 200NTU. Consequence dependent on species; Minor financial loss- Reduced light penetration; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (N=917).

LM56










Upper Moonie Surface Water Almost certain Minor Medium High

Likelihood: Statistical analysis shows NHMRC Recreation guideline (guidelines for Managing Risks in Recreational Water, 2008) likely to be exceeded- data exceeded guideline value between 65-84% of sample occasions; Elevated nutrients throughout assessment area: Total Nitrogen (50th percentile = 2000ug/L) and Total Phosphorous (50th percentile = 470ug/L); Linked to sediment; Drivers present: Vegetated headwaters (Marmadua); Brisbane biosolids used alternative to other fertilisers- expert knowledge identified a lack of drivers.Consequence: Minor impact on community resource, recreation values and amenity; Algal blooms & related aesthetic impacts (smells); Fish kills.Uncertainty: High uncertainty as guideline used is based on the concentration of Total Phosphorous and the likelihood of the exceedance of this concentration resulting in a cyanobacteria bloom (temperature and potential of river system to stratify wasn't considered), as well as local experts didn't identify drivers, thus data contradicts local knowledge (TN: N=57 & TP: N=52).




LM57


environmental value

Elevated levels of

suspended matter.



Wave wash



Upper Moonie Surface Water Almost certain Minor Medium Low

Likelihood: The QMDB Source Water Quality model (DNRM 2017) shows that 33% and 20% of TSS is contributed to stream from grazing and cropping land uses respectively in the Moonie basin. Drivers present: Low riparian vegetation cover outside of headwaters, predominantly grazing & dryland production; Mining/CSG in upper catchment; Minor irrigated production and production forestry (eastern part of catchment).Consequence: High ambient total suspended solids 50th percentile = 132mg/L. Consequence dependent on species; Minor financial loss- Reduced light penetration; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (N=76).

LM58



environmental value

Elevated levels of

suspended matter.



Wave wash



Upper Moonie Surface Water Almost certain Minor Medium Low

Likelihood: Statistical analysis shows Basin Plan Target application zone B2 guideline almost certain to be exceeded- data exceeded guideline value more than 85% of sample occasions; The QMDB Source Water Quality model (DNRM 2017) shows that 33% and 20% of TSS is contributed to stream from grazing and cropping land uses respectively in the Moonie basin. Drivers present: Low riparian vegetation cover outside of headwaters, predominantly grazing & dryland production; Mining/CSG in upper catchment; Minor irrigated production and production forestry (eastern part of catchment). Mining and CSG are regulated activities under the EPP Act. Impacts are regulated, managed and minimised through Environmetal Authority and Development Application processes. Consequence: Minor spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations. High ambient turbidity 50th percentile = 300NTU. Consequence dependent on species.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (N=272).

WM59



environmental value

Dissolved oxygen




Eutrophication



Central Condamine

Surface Water: Downstream Cooby Creek

reservoir

Likely Major Low Medium

Likelihood: Potential Hotspot: Downstream Cooby Creek reservoir; Reservoir large enough in size to become stratified; Temperature and depth dependent; Downstream dissolved oxygen 50th percentile = 8.0mg/L; Multi-take outlet reduces risk to likelihood to unlikely.Consequence: Major impact on aquatic ecosystem- Risk of eutrophication increased, oxygen availability critical to species diversity and habitat. Potential for blackwater event.Uncertainty: Medium as data lacking downstream reservoir (N=0); identified by experts during internal risk assessment.

WM60


environmental value

Dissolved oxygen




Eutrophication



Central Condamine Surface Water Rare Moderate Low Medium

Likelihood: Statistical analysis shows exceedance of aquaculture guideline as rare; Drivers present but addressed as Hotspots separately: Irrigated and dryland cropping, sewage treatment plant, feedlots, hobby farmers; dissolved oxygen data not as abundant, Myall Creek at Dalby exception - urban impact, dissolved oxygen crashes annually; Large presence of irrigated production around Oakey Creek, Condamine River, Kings Creek. STPs are activities regulated under the Environmental Protection Regulation 2008, through the Development application and Environmental authority application process. Thus, risk is mitigated.Consequence: Moderate individual financial loss; Oxygen availability critical to species development and reproduction.Uncertainty: Medium as ANZG dissolved oxygen guideline for aquatic ecosystem was used in lieu of an aquaculture guideline - this guideline may be conservative. Drivers present as identified by local experts and land use maps (Qld Globe) and statistical analysis supports local knowledge (N=282).

WM61

Water being of a quality unsuitable for drinking water

supply environmental value

Dissolved oxygen




Eutrophication



Central Condamine Surface Water Unlikely Moderate Low Medium

Likelihood: Drivers present but addressed as Hotspots separately: Irrigated and dryland cropping, sewage treatment plant, feedlots, hobby farmers; dissolved oxygen data not as abundant, Myall Creek at Dalby exception - urban impact, dissolved oxygen crashes annually; Large presence of irrigated production around Oakey Creek, Condamine River, Kings Creek. STPs are activities regulated under the Environmental Protection Regulation 2008, through the Development application and Environmental authority application process. Thus, risk is mitigated.Consequence: Moderate impact on community resource; Low dissolved oxygen can encourage transformation of compounds to others that may pose a health risk or be difficult to treat (WHO 2004, p215); Eutrophication risk increased when dissolved oxygen is less than 80% saturation (NHMRC 2008) - poor taste associated.Uncertainty: Medium as identification of drivers by local experts and land use maps (Queensland Globe) and although no guideline to assess data against.




WM62

Water being of a quality unsuitable for industrial use

environmental value

Dissolved oxygen




Eutrophication



Central Condamine Surface Water Rare Insignificant Low Medium

Likelihood: Drivers present but addressed as Hotspots separately: Irrigated and dryland cropping, sewage treatment plant, feedlots, hobby farmers; dissolved oxygen data not as abundant, Myall Creek at Dalby exception - urban impact, dissolved oxygen crashes annually; Large presence of irrigated production around Oakey Creek, Condamine River, Kings Creek; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values being exceeded.Consequence: Minimal individual financial loss; Uncertainty: Medium as no guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present as identified by local experts and land use maps (Qld Globe) and statistical analysis supports local knowledge (N=282).

WM63



environmental value

Dissolved oxygen




Eutrophication




Likelihood: Drivers present but addressed as Hotspots separately: Irrigated and dryland cropping, sewage treatment plant, feedlots, hobby farmers; dissolved oxygen data not as abundant, Myall Creek at Dalby exception - urban impact, dissolved oxygen crashes annually; Large presence of irrigated production around Oakey Creek, Condamine River, Kings Creek; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values being exceeded.Consequence: Moderate individual financial loss; Low dissolved oxygen in irrigation water can be detrimental to plant health; Elevated dissolved oxygen can promote eutrophication which can be detrimental to stock health.Uncertainty: Medium as no guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present as identified by local experts and land use maps (Queensland Globe) and statistical analysis supports local knowledge (N=282).

WM64




Dissolved oxygen




Eutrophication



Central Condamine Surface Water Rare Minor Low Medium

Likelihood: Expert local knowledge identified exceedance of NHMRC Primary Recreation guideline as rare; Drivers present but addressed as Hotspots separately: Irrigated and dryland cropping, sewage treatment plant, feedlots, hobby farmers; dissolved oxygen data not as abundant, Myall Creek at Dalby exception - urban impact, dissolved oxygen crashes annually; Large presence of irrigated production around Oakey Creek, Condamine River, Kings Creek.Consequence: Minor impact on recreation values and amenity; Indirect outcome of elevated/reduced dissolved oxygen: Risk of eutrophication increased, Potential for Blackwater event- These events would reduce the visual amenity and pose a potential health risk, restricting access to these waters for the duration of the event.Uncertainty: Medium as drivers present as identified by local experts and land use maps (Queensland Globe) - no data to validate this; Risks to secondary and visual recreation assessed by the impact of indirect outcomes as no guideline exists.

LM65


environmental value

Elevated levels of

cyanobacteria.




exceed that of local water quality guidelines for the flow condition at time of monitoring. Refer to


Central Condamine Surface Water Possible Minor Low Medium

Likelihood: Urban driven (increase in urban population-STP serviced Toowoomba Dalby - and peri-urban expansion -HSTP, fertiliser application & Mining Camps) and increased broad acre fertiliser use in response to soil fertility decline from long cultivation history). Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills; Stimulation of algal growth.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM66



environmental value

Elevated levels of

cyanobacteria.






Central Condamine Surface Water Unlikely Moderate Low Low

Likelihood: Statistical analysis shows ANZECC Aquatic ecosystems guideline for Chlorophyll-a is likely to be exceeded, this was reduced to unlikely based on local expert knowledge; Drivers present but localised: Intensive cropping, urban, intensive animal industries. Consequence: Moderate impact on aquatic ecosystem- potential toxic effects on other algae, invertebrates and fish, impacts to plants and benthic algae depending on toxin; Potentially lethal at high doses (NHMRC, 2008); can trigger anoxic conditions.Uncertainty: Low as local knowledge and land use maps (Qld globe) identified presence of drivers and data supports this (N=420).




LM67



Elevated levels of

cyanobacteria.







Likelihood: Unlikely; Other algae needs to be considered; Instream and weirs.Consequence: Moderate impact on community resource; harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- Blooms are relatively easy to treat in raw water, once the species of bloom is known.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM68


environmental value

Elevated levels of

cyanobacteria.






Central Condamine Surface Water Unlikely Minor Low Medium

Likelihood: Drivers present: Intensive cropping, urban expansion, intensive animal industries; Other algae needs to be considered; Instream and weirs.Consequence: Minimal individual financial loss; Low prevalence of industrial uses in upper Condamine.Uncertainty: Medium as although drivers present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM69



environmental value

Elevated levels of

cyanobacteria.







Likelihood: Linked to nutrients and temperature; Drivers: Intensive cropping, urban expansion, intensive animal industries.Consequence: Significant individual financial impact- harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- documented cases of livestock fatalities following exposure- Not an issue for irrigation waters.Uncertainty: Medium as although drivers present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM70




Elevated levels of

cyanobacteria.







Likelihood: Linked to nutrients and temperature; Drivers: Intensive cropping, urban expansion, intensive animal industries; Potential hotspot: Cooby Creek reservoir- Primary Recreation guideline exceeded every year (L: 5)(DISITI data).Consequence: Moderate impact on community resource, recreation values and amenity- Harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008).Uncertainty: Medium as although drivers present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM71


environmental value







Central Condamine Surface Water Possible Minor Low Medium

Likelihood: Urban driven (increase in urban population-STP serviced Toowoomba Dalby - and peri-urban expansion -HSTP, fertiliser application & Mining Camps) and increased broad acre fertiliser use in response to soil fertility decline from long cultivation history). Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills; Stimulation of algal growth.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM72










Likelihood: Exceedance considered to be unlikely; Urban driven (increase in urban population-STP serviced Toowoomba Dalby - and peri-urban expansion -HSTP, fertiliser application & Mining Camps) and increased broad acre fertiliser use in response to soil fertility decline from long cultivation history) Consequence: Moderate impact to community resource as although raw water will go for treatment prior to consumption, some nutrients can reduce the effectiveness of disinfection; Human health risk; Stimulation of algal growth; Of particular issue for consumers of bore/ground water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to support.




LM73


environmental value







Central Condamine Surface Water Rare Moderate Low Low

Likelihood: Expert knowledge considered exceedance of industry use guideline as rare; Elevated nutrients throughout assessment area: Total Nitrogen (50th percentile = 1200ug/L) and Total Phosphorous (50th percentile = 350ug/L), however industry water use can tolerate concentrations of nutrients that would pose risk for other uses of water; Linked to sediment; Drivers present: High concentration of irrigated & dryland cropping, STP, feedlots, hobby farmers; Urban driven, increase in urban and peri-urban population, Aging septic system around Cooby Creek; Increased broad acre fertiliser use in response to soil fertility decline from long cultivation history. Consequence: Significant financial losses as industry is very prevalent in this catchment.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN: N=317 & TP: N=882).

LM74



environmental value







Central Condamine Surface Water Rare Moderate Low Low

Likelihood: Statistical analysis shows exceedance of ANZECC Irrigation guideline for Total Phosphorous and Total Nitrogen as rare; Urban driven (increase in urban population-STP serviced Toowoomba Dalby - and peri-urban expansion -HSTP, fertiliser application & Mining Camps) and increased broad acre fertiliser use in response to soil fertility decline from long cultivation history). Consequence: Significant financial loss; Stimulation of algal growth in stock water; Poisoning, which can result in loss of productivity or death; Irrigation water containing nutrients is beneficial for plants; Stimulation of algal growth; Higher consequence due to proportion of agricultural land uses that would be exposed. Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN: N=317 & TP: N=882).

LM75


environmental value

Elevated levels of


contaminants







Likelihood: UnlikelyConsequence: Minor financial loss as low prevalence of aquaculture in catchment; Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM76



environmental value

Elevated levels of


contaminants







Likelihood: Local experts support the conclusion that it is unlikely that pesticides would be elevated to an extent that this water would be unsuitable for use; Drivers present: Irrigated production prevalent around Oakey Creek, Condamine River, Kings Creek and Glengallan Creek.- No data to support; Consequence: Moderate impacts on aquatic ecosystem; Unknown is cumulative impact; More information is required to support consequence - monitoring.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM77



Elevated levels of


contaminants






Central Condamine Surface Water Rare Major Low Medium

Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Drivers present: Irrigated production prevalent around Oakey Creek, Condamine River, Kings Creek and Glengallan Creek.- No data to support.Consequence: Major impact to community resource as pesticides and other contaminants are not easily detected and are expensive to treat; Human health impacts; Cumulative impact is unknown; More information is required to support consequence - monitoring.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM78


environmental value

Elevated levels of


contaminants







Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Irrigated production prevalent throughout CC; Irrigated production & grazing potentially mobilise sediments containing contaminants.Consequence: Minor financial impact; Small proportion of industrial land use in risk assessment area; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Medium as although drivers are present (land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.




LM79



environmental value

Elevated levels of


contaminants







Likelihood: Local experts support the conclusion that it is unlikely that pesticides would be elevated to an extent that this water would be unsuitable for use; Drivers present: Irrigated production prevalent around Oakey Creek, Condamine River, Kings Creek and Glengallan Creek.- No data to support; Consequence: Moderate financial impacts; Animal health risk; Human health riskUncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM80




Elevated levels of


contaminants







Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Drivers present: Irrigated production prevalent around Oakey Creek, Condamine River, Kings Creek and Glengallan Creek.- No data to support.Consequence: Moderate impact on recreation; Human health issue.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM81


environmental value






Likelihood: Statistical analysis of water quality data shows exceedance of ANZG freshwater Aquaculture guideline as rare; Drivers present however guideline value is high enough that an exceedance would be rare in this catchment: Groundwater expression influencing SW salinity; Irrigated production prevalent throughout CC; Irrigated production & grazing potentially mobilise sediments containing ions. Consequence: Moderate financial impact; Aquaculture land use present throughout Central Condamine, but not a major land use; Productivity influenced (growth stunted by expending energy elsewhere); Fatalities in extreme conditions [ANZG 2000].Uncertainty: Medium as unsure if upper aquifer is saline, which would inform the likelihood of intrusion of saline water into surface water; Local expert knowledge and land use maps (Qld Globe) support data.

LM82








Likelihood: Local experts & data analysis supports the conclusion that it is unlikely salinity concentrations would be elevated to an extent that this water would be unsuitable for use; Groundwater expression influencing SW salinity; irrigated production prevalent throughout CC; Irrigated production & grazing potentially mobilise sediments containing ions. Consequence: Moderate impact on community resource as saline water is difficult to treat; Aesthetic quality impacted (taste); Health impacts in extreme cases.Uncertainty: Medium as unsure if upper aquifer is saline, which would inform the likelihood of intrusion of saline water into surface water; Local expert knowledge and land use maps (Qld Globe) identified drivers but no local guideline value to compare data against.

LM83


environmental value






Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Groundwater expression influencing SW salinity; Irrigated production prevalent throughout CC; Irrigated production & grazing potentially mobilise sediments containing ions. Consequence: Minor financial impact; Small proportion of industrial land use in risk assessment area; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Medium as unsure if upper aquifer is saline, which would inform the likelihood of intrusion of saline water into surface water; Local expert knowledge and land use maps (Qld Globe) support data.




LM84









Likelihood: Statistical analysis of water quality data shows exceedance of ANZECC Recreation guideline as unlikely; Drivers present however guideline value is high enough that it is unlikely to be exceeded in this catchment: Groundwater expression influencing SW salinity; Irrigated production prevalent throughout CC; Irrigated production & grazing potentially mobilise sediments containing ions. Consequence: Primary- exposure to unsanitary water under extreme circumstance (i.e. decaying aquatic life); Secondary- Impacts of decaying aquatic life (eutrophication, exposure to pathogens etc.); Aesthetic- Salt crusts; dead aquatic life and resultant impacts (poor smell, upsetting etc.). Uncertainty: Medium as unsure if upper aquifer is saline, which would inform the likelihood of intrusion of saline water into surface water; Local expert knowledge and land use maps (Qld Globe) support data.

LM85


environmental value

Elevated levels of

suspended matter.



Wave wash



Central Condamine Surface Water Unlikely Minor Low Low

Likelihood: Elevated levels of suspended and deposited (more of an issue) matter from current land use practices already poor. Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Physiological damage; Smothering; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments. Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) and data supports.

LM86



environmental value

Elevated levels of

suspended matter.



Wave wash




Likelihood: Statistical analysis shows ANZECC Aquatic ecosystem guideline unlikely to be exceeded- data exceeded guideline value between 15-34% of sample occasions; Highly erosive soils- Wes's map to support; Drivers present: Intense irrigated production prevalent around Oakey Creek, Condamine River and Kings Creek; Grazing present in 80% of assessment area.Consequence: Very low ambient turbidity 50th percentile = 23NTU- Consequence increased under Event flows: 50th percentile = 298NTU. Moderate spatial & temporal impact on aquatic ecosystems- Exceedance of guideline would have greater consequences as ecosystem isn't adapted to sediment inputs; Reduced light penetration; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Reliable data (N=1206); Drivers identified by local experts & land use maps (Qld Globe) support the data.

LM87



Elevated levels of

suspended matter.



Wave wash




Likelihood: Exceedance considered to be unlikely; Local experts & data analysis supports the conclusion that it is unlikely suspended matter concentrations would be elevated to an extent that this water would be unsuitable for use; Elevated levels of suspended and deposited (more of an issue) matter from current land use practices already poor. Consequence: Minor impact to community resource as suspended solids are relatively easy and inexpensive to remove from raw water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM88


environmental value

Elevated levels of

suspended matter.



Wave wash




Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Elevated levels of suspended and deposited (more of an issue) matter from current land use practices already poor. Consequence: Minor financial loss; Low prevalence of industrial land use in Upper Condamine.Uncertainty: Low as drivers are present (land use) as identified by local experts & land use maps (Qld Globe) and data supports this.




LM89



environmental value

Elevated levels of

suspended matter.



Wave wash




Likelihood: Elevated levels of suspended and deposited (more of an issue) matter from current land use practices already poor. Consequence: Minor financial impact; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments. Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) although no local guideline value to assess data against.

LM90




Elevated levels of

suspended matter.



Wave wash


guidelines for the flow condition at time of monitoring..


Likelihood: Elevated levels of suspended and deposited (more of an issue) matter from current land use practices already poor. Consequence: Minor financial impact; Visually displeasing; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM91



Elevated pathogen

counts




aren't available.

Central Condamine Surface Water Possible Minor Low High

Likelihood: Internal risk assessment identified an exceedance of pathogen guidelines as possible; Drivers present: Disposal to land of treated effluent; Irrigated & dryland cropping, hobby farmers; Feed lots; Linked to sediments & nutrients; Oakey nutrient issues; Aging septic systems around Cooby Creek; Not currently sampling for E. coli or any pathogens instream. Consequence: Minor impact to community resource as raw water will go for treatment prior to consumption; Human health impacted by viruses caused by pathogens.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value and no data to support.

LM92


environmental value

Elevated pathogen

counts




aren't available.

Central Condamine Surface Water Unlikely Insignificant Low High

Likelihood: Expert local knowledge identified an exceedance of pathogen guidelines as possible; Drivers present but these are unlikely to exceed guideline value for industrial use: Disposal to land of treated effluent- Lacking E.coli monitoring data, Population growth, Irrigated production prevalent around Oakey Creek, Condamine River, Kings Creek and Glengallan Creek; Not currently sampling for E. coli or any pathogens instream. Consequence: Minimal or no financial losses.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM93


environmental value




Eutrophication



Central Condamine Surface Water Rare Major Low Low

Likelihood: Sample for ASS in the area and soil, stream data to support; Two soil types of concern - Oakey floodplain and Clifton ferrosols - geographic area is small. Remaining soils are well buffered.Consequence: Major financial impact; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.).Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data; Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM94



environmental value




Eutrophication




Likelihood: Sample for ASS in the area and soil, stream data to support.Two soil types of concern - Oakey floodplain and Clifton ferrosols - geographic area is small. Remaining soils are well bufferedConsequence: Major impact on aquatic ecosystem; Consequence is localised and short lived; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.).Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.




LM95






Eutrophication




Likelihood: Local experts & data analysis supports the conclusion that it is unlikely that pH would be outside natural ranges to an extent that this water would be unsuitable for use; Sample for ASS in the area and soil, stream data to support; Two soil types of concern - Oakey floodplain and Clifton ferrosols - geographic area is small; Remaining soils are well buffered.Consequence: Minor impact to community resource as pH is easily & inexpensively corrected in the water treatment process; Human health impacts; Corrosion of pipes. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM96


environmental value




Eutrophication




Likelihood: Sample for ASS in the area and soil, stream data to support.Two soil types of concern - Oakey floodplain and Clifton ferrosols - geographic area is small. Remaining soils are well buffered.Consequence: Moderate financial impact; Corrosion of pipes.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM97



environmental value




Eutrophication




Likelihood: Sample for ASS in the area and soil, stream data to support.Two soil types of concern - Oakey floodplain and Clifton ferrosols - geographic area is small. Remaining soils are well buffered.Consequence: Major financial loss; Corrosion of pipes; Health impacts to animals; Risks to crop health.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM98







Eutrophication



Central Condamine Surface Water Rare Minor Low Low

Likelihood: Sample for ASS in the area and soil, stream data to support.Two soil types of concern - Oakey floodplain and Clifton ferrosols - geographic area is small. Remaining soils are well buffered.Consequence: Minor impact on recreation; Irritation to eyes, skin and mucous membranes; Gastrointestinal irritation; Irreversible damage to eyes; Consequence is localised and short lived. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

WM99



environmental value

Water Temperature





Reduced flow.



Central Condamine

Surface Water: Downstream Cooby Creek

reservoir

Rare Major Low Medium

Likelihood: Potential Hotspot: Downstream Cooby Creek reservoir low risk of thermal alteration and low likelihood of water quality impacts as no releases occur from this dam except for capacity breaching events (DNRM, 2017); Reservoir large enough in size to become stratified but unlikely; Temperature and depth dependent; Downstream temperature 50th percentile = 18.2oC.Consequence: Major spatial and temporal impacts on aquatic ecosystem- Loss of recruitment opportunities; High temperature reduces dissolved oxygen; Impacts reproduction and respiration rate; Increases susceptibility to disease; Alters food availability.Uncertainty: Medium as data lacking downstream (N=3) however literature supports lack of stratification in this reservoir.

WM100


environmental value

Water temperature outside of

natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use.Consequence: Moderate financial impact; Thermal tolerance of species is known; Limits recruitment of species.Uncertainty: Low as localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.




WM101




natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use.Consequence: Insignificant impacts on community resource as temperature impacts on water quality (e.g. elevated temperature promoting cyanobacteria colonies) will be treated prior to consumption.Uncertainty: Medium as drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM102


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use.Consequence: Minimal or no financial impacts. Uncertainty: Medium as drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM103



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use.Consequence: Minor impact on irrigation water; Cold water can stress crops.Uncertainty: Medium as drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM104





natural range




Reduced flow.



Central Condamine Surface Water Rare Insignificant Low Low

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use.Consequence: Minimal or no impact on community resource; Primary Rec: less than 16oC: increased risk of suffering shock and hypothermia. Greater than 34oC: Increased risk of hyperthermia (NHMRC 2008).Uncertainty: Low as localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM105


environmental value

Dissolved oxygen




Eutrophication



Granite Belt (Stanthorpe) Surface Water Unlikely Moderate Low Medium

Likelihood: Statistical analysis shows exceedance of Aquaculture guideline as unlikely; Drivers present but addressed as Hotspots separately: residential, grazing, cropping and irrigated production with minor forestry. Consequence: Moderate individual financial loss; Oxygen availability critical to species development and reproduction.Uncertainty: Medium as ANZG dissolved oxygen guideline for Aquatic ecosystem was used in lieu of an Aquaculture guideline - This guideline may be conservative. Drivers present but identified by local experts as having localised risks only - data (mg/L) supports this conclusion (N=163).

WM106



environmental value

Dissolved oxygen




Eutrophication



Granite Belt (Stanthorpe) Surface Water Unlikely Moderate Low Low

Likelihood: Statistical analysis shows exceedance of aquatic guideline as unlikely; Drivers present but addressed as Hotspots separately: residential, grazing, cropping and irrigated production with minor forestry. Consequence: Moderate impact on aquatic ecosystem- Risk of eutrophication increased, oxygen availability critical to species diversity and habitat. Potential for blackwater event.Uncertainty: Low as drivers present but identified by local experts as having localised risks only - data supports this conclusion (N=163).

WM107



Dissolved oxygen




Eutrophication




Likelihood: Drivers present but addressed as Hotspots separately: grazing, cropping and irrigated production with minor forestry; Development not expected in future.Consequence: Moderate impact on community resource; Low dissolved oxygen can encourage transformation of compounds to others that may pose a health risk or be difficult to treat (WHO 2004, p215); Eutrophication risk increased when dissolved oxygen is less than 80% saturation (NHMRC 2008) - poor taste associated.Uncertainty: Medium as drivers are localised as identified by local experts and land use maps (Qld Globe), however no guideline exists to assess data against.




WM108


environmental value

Dissolved oxygen




Eutrophication



Granite Belt (Stanthorpe) Surface Water Rare Insignificant Low Medium

Likelihood: Drivers present but addressed as Hotspots separately: residential, grazing, cropping and irrigated production with minor forestry; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Minimal individual financial loss.Uncertainty: Medium as no guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present but identified by local experts as having localised risks only - data (mg/L) supports this conclusion (N=163).

WM109



environmental value

Dissolved oxygen




Eutrophication



Granite Belt (Stanthorpe) Surface Water Rare Moderate Low Medium

Likelihood: Drivers present but addressed as Hotspots separately: residential, grazing, cropping and irrigated production with minor forestry ; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Moderate individual financial loss; Low dissolved oxygen in irrigation water can be detrimental to plant health; Elevated dissolved oxygen can promote eutrophication which can be detrimental to stock health. Uncertainty: Medium as no guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present but identified by local experts as having localised risks only - data (mg/L) supports this conclusion (N=163).

WM110




Dissolved oxygen




Eutrophication



Granite Belt (Stanthorpe) Surface Water Unlikely Minor Low High

Likelihood: Statistical analysis shows exceedance of NHMRC Primary Recreation guideline as unlikely; Drivers present but addressed as Hotspots separately: residential, grazing, cropping and irrigated production with minor forestry. Consequence: Minor impact on recreation values and amenity; Indirect outcome of elevated/reduced dissolved oxygen: Risk of eutrophication increased, Potential for blackwater event- These events would reduce the visual amenity and pose a potential health risk, restricting access to these waters for the duration of the event.Uncertainty: High as drivers present but identified by local experts as having localised risks only - no data to support this. Risks to secondary and visual recreation assessed by the impact of indirect outcomes as no guideline exists.

WM111




Dissolved oxygen




Eutrophication




Surface Water- Localised: Storm

King reservoir and surrounds

Rare Minor Low Low

Likelihood: Hotspot: Storm King reservoir and downstream; Storm King reservoir has low risk of thermal alteration (DNRM 2017) and thus, has a low risk of anoxic conditions forming; Temperature and depth dependent; dissolved oxygen 50th percentile = 6.4mg/L; No multi-take outlet, releases only occur when spillway is exceeded and this occurs following periods of high rainfall.Consequence: Minor impact on community resource - no human health risk. Potential for blackwater event.Uncertainty: Although a guideline doesn't exist to compare data results against, the statistical analysis showed Aquatic Ecosystems guideline as unlikely to be exceeded and therefore, recreation is also unlikely to be impacted by dissolved oxygen concentrations.

LM112


environmental value

Elevated levels of

cyanobacteria.


Cyanobacteria cell counts or bio volume, toxins and odour

compounds exceed that of local water quality guidelines for the

flow condition at time of monitoring. Refer to ANZG if local water quality guidelines

aren't available.

Granite Belt (Stanthorpe) Surface Water Possible Minor Low Medium

Likelihood: Irrigation present in the granite belt. Continue improving irrigation efficiency then the risk will decline. Current issue. Requires active management. Highly connected landscape (GW and SW). Sandy landscape nothing to bind nutrients and pesticides, higher rainfall than other areas of QMDB, water moving around moving any contaminants around.Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills; Stimulation of algal growth.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.




LM113



environmental value

Elevated levels of

cyanobacteria.





aren't available.

Granite Belt (Stanthorpe) Surface Water Rare Moderate Low Medium

Likelihood: Statistical analysis shows exceedance of ANZG Aquatic ecosystems guideline for Chlorophyll-a is rare- this contradicts local knowledge & documented occurrences of algal blooms downstream of Stanthorpe STP; Stanthorpe STP is a regulated activity. Impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process.Continuation of best practice in agriculture is required to keep risk low. Consequence: Moderate impact on aquatic ecosystem- potential toxic effects on other algae, invertebrates and fish, impacts to plants and benthic algae depending on toxin; Potentially lethal at high doses (NHMRC, 2008); can trigger anoxic conditions.Uncertainty: Medium as local exerts identified a lack of drivers present, however Qld globe identified no data to validate this.

LM114



Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Unlikely; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Consequence: Moderate impact on community resource; harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- Blooms are relatively easy to treat in raw water, once the species of bloom is known.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM115


environmental value

Elevated levels of

cyanobacteria.





aren't available.

Granite Belt (Stanthorpe) Surface Water Unlikely Minor Low Medium

Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Potential for increased impacts from expanding ecotourism/ winery tourism through unsewered effluent; Not currently sampling for E. coli or any pathogens instream. Consequence: Minimal individual financial loss.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM116



environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated.Consequence: Moderate individual financial loss; Harmful effects on tissues, cells or organisms; Sheep often more susceptible than cattle; Poisoning upon ingestion- often results in death but severity dependent on toxin & age of bloom (NHMRC, 2008) - Not an issue for irrigation waters.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM117




Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Hotspot: Storm King reservoir and surrounds; Data (Glenn, DISITI) shows NHMRC guideline for Primary Recreation exceeded every year; Linked to suspended solids, nutrients and temperature.Consequence: Moderate impact on community resource, recreation values and amenity; Harmful effects on tissues, cells or organisms; Depending on toxin, potentially lethal at high doses (NHMRC, 2008).Uncertainty: DSITI data provides confidence.

LM118


environmental value







Granite Belt (Stanthorpe) Surface Water Possible Minor Low Medium

Likelihood: Irrigation present in the granite belt. Continue improving irrigation efficiency then the risk will decline. Current issue. Requires active management. Highly connected landscape (GW and SW). Sandy landscape nothing to bind nutrients and pesticides, higher rainfall than other areas of QMDB, water moving around moving any contaminants around.Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills; Stimulation of algal growth.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.




LM119










Likelihood: Irrigation present in the granite belt; Continue improving irrigation efficiency then the risk will decline; Requires active management; Highly connected landscape (GW and SW); Sandy landscape nothing to bind nutrients and pesticides, higher rainfall than other areas of QMDB, water moving around moving any contaminants around.Consequence: Moderate impact to community resource as although raw water will go for treatment prior to consumption, some nutrients can reduce the effectiveness of disinfection; Human health risk; Stimulation of algal growth; Of particular issue for consumers of bore/ground water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but

LM120


environmental value







Granite Belt (Stanthorpe) Surface Water Rare Moderate Low Low

Likelihood: Expert knowledge considered exceedance of industry use guideline as rare; Drivers present however industry water use can tolerate concentrations of nutrients that would pose risk for other uses of water: Irrigation present in the granite belt; Continue improving irrigation efficiency then the risk will decline; Requires active management; Highly connected landscape (GW and SW); Sandy landscape nothing to bind nutrients and pesticides, higher rainfall than other areas of QMDB, water moving around moving any contaminants around.Consequence: Minor financial losses; Lower as industry isn't a major land use- localised effects only.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) appear to be addressed by BMP- this is supported by the data (TN: N=482 & TP: N=511).

LM121



environmental value







Granite Belt (Stanthorpe) Surface Water Rare Minor Low Low

Likelihood: Statistical analysis shows exceedance of ANZG Irrigation guideline for Total Phosphorous and Total Nitrogen as rare; Irrigation present in the granite belt; Continue improving irrigation efficiency then the risk will decline; Requires active management; Highly connected landscape (GW and SW); Sandy landscape nothing to bind nutrients and pesticides, higher rainfall than other areas of QMDB, water moving around moving any contaminants around. Consequence: Significant financial loss; Stimulation of algal growth in stock water; Poisoning, which can result in loss of productivity or death; Irrigation water containing nutrients is beneficial for plants; Stimulation of algal growth; Poisoning, which can result in loss of productivity or death; Not a massive consequence as the system is heavily altered. Irrigation present in the granite belt.U t i t L d i id tifi d b l l t & l d (Qld Gl b )

LM122










Granite Belt (Stanthorpe) Surface Water Rare Minor Low Medium

Likelihood: Statistical analysis shows exceedance of Basin Plan C2 Target application zone guideline for Total Phosphorous is rare; Drivers present: Concentrated irrigation, residential, grazing; Continue improving irrigation efficiency then the risk will decline; Requires active management; Highly connected landscape (GW and SW); Sandy landscape nothing to bind nutrients and pesticides, higher rainfall than other areas of QMDB, water moving around moving any contaminants around.Consequence: Minor impact on community resource, recreation values and amenity; Increases risk of eutrophication & related aesthetic impacts (smells); Fish kills; Not a massive consequence as the system is heavily altered. Uncertainty: Medium as drivers are very prevalent as identified by local experts and land use maps (Qld Globe). This is contradicted by the statistical analysis which is perhaps

LM123


environmental value

Elevated levels of


contaminants







Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas; Irrigation present in the granite belt. Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills;Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against

LM124



environmental value

Elevated levels of


contaminants







Likelihood: Unlikely; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas; Irrigation present in the granite belt. Consequence: Moderate impacts on aquatic ecosystem.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.




LM125



Elevated levels of


contaminants






Granite Belt (Stanthorpe) Surface Water Rare Major Low Medium

Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Drivers present: Heavily irrigated.Consequence: Major impact to community resource as pesticides and other contaminants are not easily detected and are expensive to treat; Human health impacts. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM126


environmental value

Elevated levels of


contaminants







Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Potential for increased impacts from expanding ecotourism/ winery tourism through unsewered effluent; Not currently sampling for E. coli or any pathogens instream. Consequence: Moderate financial loss; Unable to operate business resulting in loss of business, reduced employment capacity.

LM127



environmental value

Elevated levels of


contaminants







Likelihood: Unlikely; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas; Irrigation present in the granite belt. Consequence: Moderate financial impacts; Animal health risk; Human health risk.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM128




Elevated levels of


contaminants







Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas; Irrigation present in the granite belt. Consequence: Moderate impact on recreation; Human health issue.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM129


environmental value


Mobilisation of salt stores in landscape through processes and activities relating to water flow or water management or land management (wetland or dryland salinity). The use of groundwater for irrigation purposes at locations where highly saline upper aquifer water drains to the lower aquifer.




Likelihood: Statistical analysis of water quality data shows exceedance of ANZG freshwater Aquaculture guideline as rare; Low prevalence of aquaculture land use; Irrigated land use; mobilisation of ions in sediments from grazing (salt present in landscape); system degraded in regard to salinity around Broadwater; Irrigation induced salinity is present in the granite belt (Biggs & Powers 2002 Biggs 2010), however, with continuous improvement in irrigation efficiency then the risk will decline, but it requires active management; Possible increase irrigation with increase water supply if Emu Swamp Dam is constructed for urban water supply for Stanthorpe (expanding population with current supply Storm King Dam under stress during Millennium drought) and for use for irrigation; possible for extra land to be available for irrigating due to relaxation of clearing for "high value" agriculture land

LM130



environmental value






Likelihood: Statistical analysis of water quality data shows exceedance of ANZG Aquatic ecosystems guideline is rare; Irrigated land use; mobilisation of ions in sediments from grazing (salt present in landscape); system degraded in regard to salinity around Broadwater; Irrigation induced salinity is present in the granite belt (Biggs & Powers 2002 Biggs 2010), however, with continuous improvement in irrigation efficiency then the risk will decline, but it requires active management; Possible increase irrigation with increase water supply if Emu Swamp Dam is constructed for urban water supply for Stanthorpe (expanding population with current supply Storm King Dam under stress during Millennium drought) and for use for irrigation; possible for extra land to be available for irrigating due to relaxation of clearing for "high-value" agriculture land.Consequence: Moderate impacts on aquatic ecosystem; Physiological responses; Death; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to th t B h i difi ti Alt d i bi l ti it (d t i t




LM131








Likelihood: Local experts & data analysis supports the conclusion that it is unlikely salinity concentrations would be elevated to an extent that this water would be unsuitable for use; Irrigated land use; mobilisation of ions in sediments from grazing (salt present in landscape); system degraded in regard to salinity around Broadwater; Irrigation induced salinity is present in the granite belt (Biggs & Powers 2002 Biggs 2010), however, with continuous improvement in irrigation efficiency then the risk will decline, but it requires active management; Possible increase irrigation with increase water supply if Emu Swamp Dam is constructed for urban water supply for Stanthorpe (expanding population with current supply Storm King Dam under stress during Millennium drought) and for use for irrigation; possible for extra land to be available for irrigating due to relaxation of clearing for "high-value" agriculture land.Consequence: Moderate impact on community resource as saline water is difficult to treat; Aesthetic quality impacted (taste); Health impacts in extreme cases.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but

LM132


environmental value


Mobilisation of salt stores in landscape through processes and activities relating to water flow or water management or land management (wetland or dryland salinity). The use of groundwater for irrigation purposes at locations where highly saline upper aquifer water drains to the lower aquifer. The use of water with a high ratio of calcium




Likelihood: Small proportion of industrial land use in risk assessment area; Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment; Irrigated land use; mobilisation of ions in sediments from grazing (salt present in landscape); system degraded in regard to salinity around Broadwater; Irrigation induced salinity is present in the granite belt (Biggs & Powers 2002 Biggs 2010), however, with continuous improvement in irrigation efficiency then the risk will decline, but it requires active management; Possible increase irrigation with increase water supply if Emu Swamp Dam is constructed for urban water supply for Stanthorpe (expanding population with current supply Storm King Dam under stress during Millennium drought) and for use for irrigation; possible for extra land to be available for irrigating due to relaxation of

LM133



environmental value


Mobilisation of salt stores in landscape through processes and activities relating to water flow or water management or land management (wetland or dryland salinity). The use of groundwater for irrigation purposes at locations where highly saline upper aquifer water drains to the lower aquifer


guidelines for the flow condition at time of monitoring. Refer to



Likelihood: Irrigated land use; mobilisation of ions in sediments from grazing (salt present in landscape); system degraded in regard to salinity around Broadwater; Irrigation induced salinity is present in the granite belt (Biggs & Powers 2002 Biggs 2010), however, with continuous improvement in irrigation efficiency then the risk will decline, but it requires active management; Possible increase irrigation with increase water supply if Emu Swamp Dam is constructed for urban water supply for Stanthorpe (expanding population with current supply Storm King Dam under stress during Millennium drought) and for use for irrigation; possible for extra land to be available for irrigating due to relaxation of clearing for "high-value"

LM134








Granite Belt (Stanthorpe) Surface Water Unlikely Minor Low Low

Likelihood: Irrigated land use; mobilisation of ions in sediments from grazing (salt present in landscape); system degraded in regard to salinity around Broadwater; Irrigation induced salinity is present in the granite belt (Biggs & Powers 2002 Biggs 2010), however, with continuous improvement in irrigation efficiency then the risk will decline, but it requires active management; Possible increase irrigation with increase water supply if Emu Swamp Dam is constructed for urban water supply for Stanthorpe (expanding population with current supply Storm King Dam under stress during Millennium drought) and for use for irrigation; possible for extra land to be available for irrigating due to relaxation of clearing for "high-value" agriculture land.Consequence: Primary - exposure to unsanitary water under extreme circumstance (i.e.

LM135


environmental value

Elevated levels of

suspended matter.



Wave wash



Granite Belt (Stanthorpe) Surface Water Unlikely Minor Low Low

Likelihood: Consequences if best management practice is not maintained to minimise nutrients impact SW & GE (e.g. fertigation).Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills; Stimulation of algal growth.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data (N=481); Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.




LM136



environmental value

Elevated levels of

suspended matter.



Wave wash




Likelihood: Consequences if best management practice is not maintained to minimise nutrients impact SW & GE (e.g. fertigation).Consequence: Moderate impacts on aquatic ecosystem; Reduced light penetration. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM137



Elevated levels of

suspended matter.



Wave wash




Likelihood: Exceedance considered to be unlikely; Consequences if best management practice is not maintained to minimise nutrients impact SW & GE (e.g. fertigation); Town water treated before consumption.Consequence: Minor impact to community resource as suspended solids are relatively easy and inexpensive to remove from raw water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM138


environmental value

Elevated levels of

suspended matter.



Wave wash




Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this. catchment: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Potential for increased impacts from expanding ecotourism/ winery tourism (increased irrigation). Consequence: Moderate financial loss; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Low as drivers are present (land use) as identified by local experts & land use maps (Qld Globe) and data supports this.

LM139



environmental value

Elevated levels of

suspended matter.



Wave wash



Granite Belt (Stanthorpe) Surface Water Rare Minor Low Medium

Likelihood: Consequences if best management practice is not maintained to minimise nutrients impact SW & GE (e.g. fertigation).Consequence: Minor financial impact; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments. Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) although no local guideline value to assess data against.

LM140




Elevated levels of

suspended matter.



Wave wash




Likelihood: Consequences if best management practice is not maintained to minimise nutrients impact SW & GE (e.g. fertigation).Consequence: Minor financial impact; Visually displeasing; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.




LM141


environmental value

Elevated pathogen

counts




aren't available.

Granite Belt (Stanthorpe) Surface Water Rare Moderate Low High

Likelihood: Exceedance of Aquaculture and Human Consumers of Aquatic Foods guideline is rare; No drivers present: Continuation of best practice in agriculture is required to keep risk low, Minimal development anticipated, Potential for increased impacts from expanding ecotourism/ winery tourism through unsewered effluent. Consequence: Significant financial loss and human health risk; Aquatic biota can develop physiological defects; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no known guideline value and no data to support.

LM142



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Exceedance of Aquaculture and Human Consumers of Aquatic Foods guideline is rare; No drivers present: Continuation of best practice in agriculture is required to keep risk low, Minimal development anticipated, Potential for increased impacts from expanding ecotourism/ winery tourism through unsewered effluent; Not currently sampling for E. coli or any pathogens instream. Consequence: Moderate impact on ecosystem; Aquatic biota can develop physiological defects; Mass fatalities; Sensitive species most susceptible (sensitive life history or certain sensitive developmental stages).

LM143



Elevated pathogen

counts




aren't available.

Granite Belt (Stanthorpe) Surface Water Rare Minor Low High

Likelihood: No drivers present: Continuation of best practice in agriculture is required to keep risk low, Minimal development anticipated, Potential for increased impacts from expanding ecotourism/ winery tourism through unsewered effluent; Not currently sampling for E. coli or any pathogens instream. Consequence: Minor impact to community resource as raw water will go for treatment prior to consumption; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no local guideline value and no data to support.

LM144


environmental value

Elevated pathogen

counts




aren't available.

Granite Belt (Stanthorpe) Surface Water Rare Insignificant Low High

Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Potential for increased impacts from expanding ecotourism/ winery tourism through unsewered effluent; Not currently sampling for E. coli or any pathogens instream. Consequence: Minimal or no financial losses.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM145



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: No drivers present: Continuation of best practice in agriculture is required to keep risk low, Minimal development anticipated, Potential for increased impacts from expanding ecotourism/ winery tourism through unsewered effluent; Not currently sampling for E. coli or any pathogens instream. Consequence: Significant financial loss; Viruses caused by pathogens can cause miscarriage, neurological disorders & death in cattle & swine. Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM146




Elevated pathogen

counts




aren't available.


Likelihood: No drivers present: Continuation of best practice in agriculture is required to keep risk low, Minimal development anticipated, Potential for increased impacts from expanding ecotourism/ winery tourism through unsewered effluent. Consequence: Moderate disturbance to recreation values and amenity; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM147


environmental value




Eutrophication



Granite Belt (Stanthorpe) Surface Water Rare Major Low Low

Likelihood: Rare.Consequence: Major financial impact; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data; Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.




LM148



environmental value







aren't available.


Likelihood: The analysis of water quality data from the Granite Belt region shows that an exceedence of the Basin Plan Target Application Zone (C2) aquatic ecosystem guideline for pH is rare- exceedence occurs <15% of sample occasions. ASS found in effluent ponds and in several north-draining streams and wetlands just north of the Granite Belt, in the uppermost reaches of the Condamine River catchment: pH: 50th percentile = 7.1 Alkalinity: 50th percentile = 22mg/L; Buffering capacity lower than in other assessment areas. This could increase the likelihood of pH exceedances as water may not buffer pH change (could also explain why pH is lower than other catchments).Consequence: Major spatial & temporal impact on aquatic ecosystems; Influences toxicity of other parameters (heavy metals, ammonia etc.); Low alkalinity, limiting buffering capacity.Uncertainty: Low as is based on local knowledge and data supports this qualitative information. Reliable data size (N=764).

LM149






Eutrophication




Likelihood: Local experts & data analysis supports the conclusion that it is unlikely that pH would be outside natural ranges to an extent that this water would be unsuitable for use. Consequence: Minor impact to community resource as pH is easily & inexpensively corrected in the water treatment process; Human health impacts; Corrosion of pipes. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM150


environmental value




Eutrophication




Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Potential for increased impacts from expanding ecotourism/ winery tourism through unsewered effluent; Not currently sampling for E. coli or any pathogens instream. Consequence: Moderate financial impact; Corrosion of pipes. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM151



environmental value




Eutrophication



Granite Belt (Stanthorpe) Surface Water Rare Major Low Low

Likelihood: Rare.Consequence: Major financial loss; Corrosion of pipes; Health impacts to animals; Risks to crop health.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM152







Eutrophication




Likelihood: Rare in this area.Consequence: Minor impact on recreation; Irritation to eyes, skin and mucous membranes; Gastrointestinal irritation; Irreversible damage to eyes.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

WM153



environmental value

Water Temperature





Reduced flow.





Downstream Storm King reservoir

Rare Major Low Low

Likelihood: Potential Hotspot: Downstream Storm King reservoir; Storm King reservoir has low risk of thermal alteration; temperature 50th percentile = 20oC- This system has lower temperature than assessment areas in other basins; Reservoir deep enough (greater than 5m) to become stratified but stratification not evident; No multi-take outlet, however releases only occur when spillway is exceeded and this occurs following periods of high rainfall. Storm King identified as lacking thermal stratification (DNRM 2017).Consequence: Major spatial and temporal impacts on aquatic ecosystem; Loss of recruitment opportunities; High temperature reduces dissolved oxygen; Impacts reproduction and respiration rate; Increases susceptibility to disease; Alters food availability.Uncertainty: Low as literature supports lack of stratification in this reservoir.




WM154


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use. Consequence: Moderate financial impact; Thermal tolerance of species is known; Limits recruitment of species.Uncertainty: Low as localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM155



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use. Consequence: Moderate impact on aquatic ecosystem; Know temperature will impact but not the extent of this impact; Thermal tolerance of these species monitoring required; Limits recruitment of species; High temperature reduces dissolved oxygen; effects reproduction and respiration rate; increases susceptibility to disease; alters food availability.Uncertainty: Low as localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM156




natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use. Consequence: Insignificant impacts on community resource as temperature impacts on water quality (e.g. elevated temperature promoting cyanobacteria colonies) will be treated prior to consumption.Uncertainty: Medium as drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM157


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use. Consequence: Minimal or no financial impacts. Uncertainty: Medium as drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM158



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use.Consequence: Minor impact on irrigation water; Cold water can stress crops.Uncertainty: Medium as drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM159





natural range




Reduced flow.



Granite Belt (Stanthorpe) Surface Water Rare Insignificant Low Low

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use. Consequence: Minimal or no impact on community resource.Uncertainty: Low as localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM160


environmental value

Dissolved oxygen




Eutrophication



Lower Balonne Surface Water Unlikely Moderate Low Medium

Likelihood: Statistical analysis shows exceedance of guideline to be unlikely; Lack of drivers - lack of development etc.; Not a receiving area - it is a distributary (delta) system.Consequence: Moderate individual financial loss; Oxygen availability critical to species development and reproduction.Uncertainty: Medium as ANZG dissolved oxygen guideline for Aquatic ecosystem was used in lieu of an Aquaculture guideline - This guideline may be conservative. Drivers not present as identified by local experts and land use maps (Queensland Globe) - data supports this conclusion (N=178).




WM161



environmental value

Dissolved oxygen




Eutrophication



Lower Balonne Surface Water Unlikely Moderate Low Low

Likelihood: Lack of drivers - lack of development etc.; Not a receiving area - it is a distributary (delta) system; occasional - localised fish kills (Cullen et al 2003).Consequence: Moderate impact on aquatic ecosystem - Risk of eutrophication increased, oxygen availability critical to species diversity and habitat. Potential for blackwater event.Uncertainty: Low as local knowledge informs lack of drivers and statistical analysis supports local knowledge (N=178).

WM162



Dissolved oxygen




Eutrophication




Likelihood: Concluded by local experts to be unlikely; Lack of drivers - lack of development etc.; Not a receiving area - it is a distributary (delta) system.Consequence: Moderate impact on community resource; Low dissolved oxygen can encourage transformation of compounds to others that may pose a health risk or be difficult to treat (WHO 2004, p215); Eutrophication risk increased when dissolved oxygen is less than 80% saturation (NHMRC 2008) - poor taste associated.Uncertainty: Medium as no drivers present as identified by local experts and land use maps (Queensland Globe), although no guideline to assess data against.

WM163


environmental value

Dissolved oxygen




Eutrophication



Lower Balonne Surface Water Rare Insignificant Low Medium

Likelihood: Lack of drivers- lack of development etc.; Not a receiving area - it is a distributary (delta) system; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Minimal individual financial loss.Uncertainty: Medium as no guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers not present as identified by local experts as having localised risks only - data (mg/L) supports this conclusion (N=178).

WM164



environmental value

Dissolved oxygen




Eutrophication



Lower Balonne Surface Water Rare Moderate Low Medium

Likelihood: Lack of drivers - lack of development etc.; Not a receiving area - it is a distributary (delta) system; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Moderate individual financial loss; Low dissolved oxygen in irrigation water can be detrimental to plant health; Elevated dissolved oxygen can promote eutrophication which can be detrimental to stock health.Uncertainty: Medium as no guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers not present as identified by local experts as having localised risks only - data (mg/L) supports this conclusion (N=178).

WM165




Dissolved oxygen




Eutrophication



Lower Balonne Surface Water Unlikely Minor Low Medium

Likelihood: Statistical analysis shows exceedance of NHMRC Primary Recreation guideline as unlikely; Lack of drivers- lack of development etc.; Not a receiving area - it is a distributary (delta) system.Consequence: Minor impact on recreation values and amenity; Indirect outcome of elevated/reduced dissolved oxygen: Risk of eutrophication increased, Potential for blackwater event - These events would reduce the visual amenity and pose a potential health risk, restricting access to these waters for the duration of the event.Uncertainty: Medium as drivers not present as identified by local experts and land use maps (Queensland Globe) - data supports this conclusion (N=178); Risks to secondary and visual recreation assessed by the impact of indirect outcomes as no guideline exists.

LM166


environmental value

Elevated levels of

cyanobacteria.





aren't available.

Lower Balonne Surface Water Possible Insignificant Low Medium

Likelihood: STP and effluent disposal facilities - biosolids usage on farms from temp housing for mining development (Mine camps). Risk due to the intensity of this occurring in the Region. Mostly the risks would stem from upstream. Most land owners in the zone (irrigators) contain their runoff (tailwater) through designed capture of the first 40mm (except in extreme events).Consequence: Minimal or no financial loss as no aquaculture in catchment.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.




LM167



Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Unlikely; Mostly the risks would stem from upstream; Most land owners in the zone (irrigators) contain their runoff (tailwater) through designed capture of the first 40mm (except in extreme events); Linked to nutrients as described above. Issue is within the trunk rather than tributaries. Consequence: Moderate impact on community resource; harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- Blooms are relatively easy to treat in raw water, once the species of bloom is known.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM168


environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Mostly the risks would stem from upstream; Most land owners in the zone (irrigators) contain their runoff (tailwater) through designed capture of the first 40mm (except in extreme events); Linked to nutrients as described above. Issue is within the trunk rather than tributaries. Consequence: Minimal individual financial loss; impair stock & domestic use.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM169



environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Drivers present: Linked to Nutrients, Mostly the risks would stem from upstream; Most land owners in the zone (irrigators) contain their runoff through designed capture of the first 40mm (except in extreme events); Irrigated production predominant around streams, grazing throughout and dryland production throughout; water storages adjacent to irrigated production.Consequence: Significant individual financial impact- harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- documented cases of livestock fatalities following exposure - Not an issue for irrigation waters.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM170




Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Mostly the risks would stem from upstream. Most land owners in the zone (irrigators) contain their runoff (tailwater) through designed capture of the first 40mm (except in extreme events); Linked to nutrients as described above. Issue is within the trunk rather than tributaries. Consequence: Moderate impact on community resource, recreation values and amenity; Harmful effects on tissues, cells or organisms; Depending on toxin, potentially lethal at high doses (NHMRC, 2008).Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe).

LM171


environmental value







Lower Balonne Surface Water Possible Insignificant Low Medium

Likelihood: STP and effluent disposal facilities - biosolids usage on farms from temp housing for mining development (Mine camps). Risk due to the intensity of this occurring in the Region. Mostly the risks would stem from upstream. Most land owners in the zone (irrigators) contain their runoff (tailwater) through designed capture of the first 40mm (except in extreme events).Consequence: Minimal or no financial loss as no aquaculture in catchment.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM172










Likelihood: Drivers present: Irrigated production predominant around streams, grazing and dryland production located throughout region; Water storages adjacent to irrigated production; Effluent evaporation pond at St George; STP and effluent disposal facilities - biosolids usage on farms from temp housing for mining development (Mine camps). Risk due to the intensity of this occurring in the Region. Mostly the risks would stem from upstream. Most land owners in the zone (irrigators) contain their runoff (tailwater) through designed capture of the first 40mm (except in extreme events); Linked to sediment.Consequence: Human health risk; Stimulation of algal growth; Of particular issue for consumers of bore/ground water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.




LM173


environmental value







Lower Balonne Surface Water Rare Moderate Low Low

Likelihood: Expert knowledge considered exceedance of industry use guideline as rare; Drivers present however industry water use can tolerate concentrations of nutrients that would pose risk for other uses of water: STP and effluent disposal facilities - biosolids usage on farms from temp housing for mining development (Mine camps). Risk due to the intensity of this occurring in the Region. Mostly the risks would stem from upstream. Most land owners in the zone (irrigators) contain their runoff (tailwater) through designed capture of the first 40mm (except in extreme events).Consequence: Minor financial losses; Lower as industry isn't a major land use- localised effects only.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN: N=228 & TP: N=355).

LM174



environmental value








Likelihood: Statistical analysis shows exceedance of ANZG Irrigation guideline for Total Phosphorous and Total Nitrogen as rare; STP and effluent disposal facilities - biosolids usage on farms from temp housing for mining development (Mine camps). Risk due to the intensity of this occurring in the Region. Mostly the risks would stem from upstream. Most land owners in the zone (irrigators) contain their runoff (tailwater) through designed capture of the first 40mm (except in extreme events). Consequence: Significant financial loss; Stimulation of algal growth in stock water; Poisoning, which can result in loss of productivity or death; Irrigation water containing nutrients is beneficial for plants; Predominantly grazing, dryland production and irrigated production- widespread impacts; Stimulation of algal growth; Poisoning, which can result in loss of productivity or death.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN: N=228 & TP: N=355).

LM175


environmental value

Elevated levels of


contaminants







Likelihood: Continuation of best practice in agriculture is required to keep risk low; lack of development etc. Not a receiving area - it is a distributary (delta) system; STP and effluent disposal facilities - biosolids usage on farms from temp housing for mining development (Mine camps). Risk due to the intensity of this occurring in the Region. Mostly the risks would stem from upstream. Most land owners in the zone (irrigators) contain their runoff (tailwater) through designed capture of the first 40mm (except in extreme events).Consequence: Minimal or no financial loss as no aquaculture in catchment.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM176



environmental value

Elevated levels of


contaminants







Likelihood: Continuation of best practice in agriculture is required to keep risk low; lack of development etc. Not a receiving area - it is a distributary (delta) system; STP and effluent disposal facilities - biosolids usage on farms from temp housing for mining development (Mine camps). Risk due to the intensity of this occurring in the Region. Mostly the risks would stem from upstream. Most land owners in the zone (irrigators) contain their runoff (tailwater) through designed capture of the first 40mm (except in extreme events).Consequence: Moderate impacts on aquatic ecosystem.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM177



Elevated levels of


contaminants






Lower Balonne Surface Water Rare Major Low Medium

Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Lack of development etc. Not a receiving area - it is a distributary (delta) system; Some drivers present: CSG, Low potential for mine drainage, Irrigated production predominant around streams, grazing throughout and dryland production throughout; water storages adjacent to irrigated production, effluent ponds.Consequence: Major impact to community resource as pesticides and other contaminants are not easily detected and are expensive to treat; Human health impacts. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.




LM178


environmental value

Elevated levels of


contaminants







Likelihood: Small proportion of industrial land use in risk assessment area; Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Irrigated land use and close proximity to streams (poor quality runoff water); Salinity is a potential problem, mobilisation of sediments from grazing & salt persists in landscape but yet to be disturbed. Potential for disturbance by rising groundwater from native clearing veg [Review of Science Underpinning the Assessment of the Ecological Condition of the Lower Balonne 2003]; Lower risk for current assessment, but possible in the long term because there is some data to suggest rising groundwater in some areas; Not an expectation of irrigation expansion due to lack of available water.Consequence: Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Medium as although drivers are present (land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM179



environmental value

Elevated levels of


contaminants







Likelihood: Continuation of best practice in agriculture is required to keep risk low; lack of development etc. Not a receiving area - it is a distributary (delta) system; STP and effluent disposal facilities - biosolids usage on farms from temp housing for mining development (Mine camps). Risk due to the intensity of this occurring in the Region. Mostly the risks would stem from upstream. Most land owners in the zone (irrigators) contain their runoff (tailwater) through designed capture of the first 40mm (except in extreme events).Consequence: Moderate financial impacts; Animal health risk; Human health risk.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM180




Elevated levels of


contaminants







Likelihood: Continuation of best practice in agriculture is required to keep risk low; lack of development etc. Not a receiving area - it is a distributary (delta) system; STP and effluent disposal facilities - biosolids usage on farms from temp housing for mining development (Mine camps). Risk due to the intensity of this occurring in the Region. Mostly the risks would stem from upstream. Most land owners in the zone (irrigators) contain their runoff (tailwater) through designed capture of the first 40mm (except in extreme events).Consequence: Moderate impact on recreation; Human health issue.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM181


environmental value







Likelihood: Statistical analysis of water quality data shows exceedance of ANZG freshwater Aquaculture guideline as rare; Irrigated land use and close proximity to streams (poor quality runoff water); Salinity is a potential problem, mobilisation of sediments from grazing & salt persists in landscape but yet to be disturbed. Potential for disturbance by rising groundwater from native clearing veg [Review of Science Underpinning the Assessment of the Ecological Condition of the Lower Balonne 2003]; Lower risk for current assessment, but possible in the long term because there is some data to suggest rising groundwater in some areas; Not an expectation of irrigation expansion due to lack of available water.Consequence: Moderate financial impact; Productivity influenced (growth stunted by expending energy elsewhere); Fatalities in extreme conditions [ANZG 2000].Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data (N=885); Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.




LM182



environmental value







Likelihood: Statistical analysis of water quality data shows exceedance of ANZG Aquatic ecosystems guideline is unlikely; Irrigated land use and close proximity to streams (poor quality runoff water); Salinity is a potential problem, mobilisation of sediments from grazing & salt persists in landscape but yet to be disturbed. Potential for disturbance by rising groundwater from native clearing veg [Review of Science Underpinning the Assessment of the Ecological Condition of the Lower Balonne 2003]; Lower risk for current assessment, but possible in the long term because there is some data to suggest rising groundwater in some areas; Not an expectation of irrigation expansion due to lack of available water.Consequence: Moderate impacts on aquatic ecosystem; Physiological responses; Death; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors; Behaviour modification; Altered microbial activity (decreases nutrient cycling, primary productivity, algal C food source decreased) [Q-catchments, 2015.].Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data (N=885).

LM183









Likelihood: Local experts & data analysis supports the conclusion that it is unlikely salinity concentrations would be elevated to an extent that this water would be unsuitable for use; Irrigated land use and close proximity to streams (poor quality runoff water); Salinity is a potential problem, mobilisation of sediments from grazing & salt persists in landscape but yet to be disturbed. Potential for disturbance by rising groundwater from native clearing veg [Review of Science Underpinning the Assessment of the Ecological Condition of the Lower Balonne 2003]; Lower risk for current assessment, but possible in the long term because there is some data to suggest rising groundwater in some areas; Not an expectation of irrigation expansion due to lack of available water.Consequence: Moderate impact on community resource as saline water is difficult to treat; Aesthetic quality impacted (taste); Health impacts in extreme cases.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to compare data against.

LM184


environmental value







Likelihood: Small proportion of industrial land use in risk assessment area; Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Irrigated land use and close proximity to streams (poor quality runoff water); Salinity is a potential problem, mobilisation of sediments from grazing & salt persists in landscape but yet to be disturbed. Potential for disturbance by rising groundwater from native clearing veg [Review of Science Underpinning the Assessment of the Ecological Condition of the Lower Balonne 2003]; Lower risk for current assessment, but possible in the long term because there is some data to suggest rising groundwater in some areas; Not an expectation of irrigation expansion due to lack of available water.Consequence: Moderate financial impact; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM185



environmental value







Likelihood: Irrigated land use and close proximity to streams (poor quality runoff water); Salinity is a potential problem, mobilisation of sediments from grazing & salt persists in landscape but yet to be disturbed. Potential for disturbance by rising groundwater from native clearing veg [Review of Science Underpinning the Assessment of the Ecological Condition of the Lower Balonne 2003]; Lower risk for current assessment, but possible in the long term because there is some data to suggest rising groundwater in some areas; Not an expectation of irrigation expansion due to lack of available waterConsequence: Reduced plant productivity; Crop failure; Reduced livestock productivity; Salt poisoning resulting in death;Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data




LM186









Lower Balonne Surface Water Unlikely Minor Low Low

Likelihood: Irrigated land use and close proximity to streams (poor quality runoff water); Salinity is a potential problem, mobilisation of sediments from grazing & salt persists in landscape but yet to be disturbed. Potential for disturbance by rising groundwater from native clearing veg [Review of Science Underpinning the Assessment of the Ecological Condition of the Lower Balonne 2003]; Lower risk for current assessment, but possible in the long term because there is some data to suggest rising groundwater in some areas; Not an expectation of irrigation expansion due to lack of available water.Consequence: Primary - exposure to unsanitary water under extreme circumstance (i.e. decaying aquatic life). Secondary - Impacts of decaying aquatic life (eutrophication, exposure to pathogen etc.); Aesthetic - Salt crusts; dead aquatic life and resultant impacts (poor smell, upsetting etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM187



environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Less infrastructure construction for the mining & CSG development. Unknown risk of suspended matter being mobilised. Unregulated levee banks causing erosion in the floodplain areas; Risk from exposed levees for water diversion and flood protection.Consequence: Moderate impacts on aquatic ecosystem; Reduced light penetration; Turbidity & TSS is naturally high- reduced aquatic production [Review of Science Underpinning the Assessment of the Ecological Condition of the Lower Balonne, 2003].Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM188



Elevated levels of

suspended matter.



Wave wash





Likelihood: Exceedance considered to be unlikely; Less infrastructure construction for the mining & CSG development. Unknown risk of suspended matter being mobilised. Unregulated levee banks causing erosion in the floodplain areas. What is the risk from exposed levees for water diversion and flood protection?Consequence: Minor impact to community resource as suspended solids are relatively easy and inexpensive to remove from raw water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM189


environmental value

Elevated levels of

suspended matter.



Wave wash




Lower Balonne Surface Water Unlikely Minor Low Low

Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Less infrastructure construction for the mining & CSG development. Unknown risk of suspended matter being mobilised. Unregulated levee banks causing erosion in the floodplain areas.Consequence: Minor financial loss; Low prevalence of industrial land use in UB.Uncertainty: Low as drivers are present (land use) as identified by local experts & land use maps (Qld Globe) and data supports this.

LM190



environmental value

Elevated levels of

suspended matter.



Wave wash




Lower Balonne Surface Water Rare Minor Low Medium

Likelihood: Less infrastructure construction for the mining & CSG development. Unknown risk of suspended matter being mobilised. Unregulated levee banks causing erosion in the floodplain areas; Risk from exposed levees for water diversion and flood protection.Consequence: Minor financial impact; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments. Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) although no local guideline value to assess data against.




LM191




Elevated levels of

suspended matter.



Wave wash




Lower Balonne Surface Water Rare Minor Low Low

Likelihood: Less infrastructure construction for the mining & CSG development. Unknown risk of suspended matter being mobilised. Unregulated levee banks causing erosion in the floodplain areas. What is the risk from exposed levees for water diversion and flood protection?Consequence: Minor financial impact; Visually displeasing; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM192


environmental value

Elevated pathogen

counts




aren't available.

Lower Balonne Surface Water Unlikely Moderate Low High

Likelihood: Related to nutrient tab for Lower Balonne- increasing nutrient inputs in the region due to expanding development; Drivers present: Irrigated agriculture, grazing; Not currently sampling for E. coli or any pathogens instream.Consequence: Significant financial loss and human health risk; Aquatic biota can develop physiological defects; Human health impacted by viruses caused by pathogens.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value and no data to support.

LM193



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Related to nutrient tab for Lower Balonne- increasing nutrient inputs in the region due to expanding development; Drivers present: Irrigated agriculture, grazing; Not currently sampling for E. coli or any pathogens instream.Consequence: Moderate impact on ecosystem; Aquatic biota can develop physiological defects; Mass fatalities; Sensitive species most susceptible (sensitive life history or certain sensitive developmental stages).Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM194



Elevated pathogen

counts




aren't available.

Lower Balonne Surface Water Possible Minor Low High

Likelihood: Related to nutrient tab for Lower Balonne- increasing nutrient inputs in the region due to expanding development; Drivers present: Irrigated agriculture, grazing; Not currently sampling for E. coli or any pathogens instream.Consequence: Minor impact to community resource as raw water will go for treatment prior to consumption; Human health impacted by viruses caused by pathogens.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value and no data to support.

LM195


environmental value

Elevated pathogen

counts




aren't available.

Lower Balonne Surface Water Unlikely Insignificant Low High

Likelihood: Related to nutrient tab for Lower Balonne- increasing nutrient inputs in the region due to expanding development; Drivers present but these are unlikely to exceed guideline value for industrial use: Irrigated agriculture, grazing; Not currently sampling for E. coli or any pathogens instream.Consequence: Minimal or no financial losses.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM196



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Related to nutrient tab for Lower Balonne- increasing nutrient inputs in the region due to expanding development; Drivers present: Irrigated agriculture, grazing; Not currently sampling for E. coli or any pathogens instream.Consequence: Significant financial loss; Viruses caused by pathogens can cause miscarriage, neurological disorders & death in cattle & swine. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM197




Elevated pathogen

counts




aren't available.


Likelihood: Related to nutrient tab for Lower Balonne- increasing nutrient inputs in the region due to expanding development; Drivers present: Irrigated agriculture, grazing; Not currently sampling for E. coli or any pathogens instream.Consequence: Moderate disturbance to recreation values and amenity; Human health impacted by viruses caused by pathogens.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.




LM198


environmental value




Eutrophication



Lower Balonne Surface Water Rare Major Low Low

Likelihood: Lack of development etc. Not a receiving area - it is a distributary (delta) system. Low potential for acid mine drainage. Potential for alkalinity from CSG. Acidic shallow groundwater along the margins of the Griman Creek Formation in the Lower Border Rivers and Lower Balonne River catchments- predisposed to acid saline groundwater and ASS formation in the excavated channels; Level of risk of ASS has not been quantified.ASS found in effluent ponds and in several north-draining streams and wetlands just north of the Granite Belt, in the uppermost reaches of the Condamine River catchment.Consequence: Major financial impact; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data; Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM199



environmental value




Eutrophication




Likelihood: Lack of development etc. Not a receiving area - it is a distributary (delta) system. Low potential for acid mine drainage. Potential for alkalinity from CSG. Acidic shallow groundwater along the margins of the Griman Creek Formation in the Lower Border Rivers and Lower Balonne River catchments- predisposed to acid saline groundwater and ASS formation in the excavated channels; Level of risk of ASS has not been quantified.ASS found in effluent ponds and in several north-draining streams and wetlands just north of the Granite Belt, in the uppermost reaches of the Condamine River catchment.Consequence: Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.).Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM200






Eutrophication




Likelihood: Local experts & data analysis supports the conclusion that it is unlikely that pH would be outside natural ranges to an extent that this water would be unsuitable for use; Lack of development etc. Not a receiving area - it is a distributary (delta) system. Low potential for acid mine drainage. Potential for alkalinity from CSG. Acidic shallow groundwater along the margins of the Griman Creek Formation in the Lower Border Rivers and Lower Balonne River catchments- predisposed to acid saline groundwater and ASS formation in the excavated channels; Level of risk of ASS has not been quantified.ASS found in effluent ponds and in several north-draining streams and wetlands just north of the Granite Belt, in the uppermost reaches of the Condamine River catchment.Consequence: Minor impact to community resource as pH is easily & inexpensively corrected in the water treatment process; Human health impacts; Corrosion of pipes. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM201


environmental value




Eutrophication




Likelihood: Lack of development etc. Not a receiving area - it is a distributary (delta) system. Low potential for acid mine drainage. Potential for alkalinity from CSG. Acidic shallow groundwater along the margins of the Griman Creek Formation in the Lower Border Rivers and Lower Balonne River catchments- predisposed to acid saline groundwater and ASS formation in the excavated channels; Level of risk of ASS has not been quantified.ASS found in effluent ponds and in several north-draining streams and wetlands just north of the Granite Belt, in the uppermost reaches of the Condamine River catchment.Consequence: Moderate financial impact; Corrosion of pipes. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.




LM202



environmental value




Eutrophication




Likelihood: Lack of development etc. Not a receiving area - it is a distributary (delta) system. Low potential for acid mine drainage. Potential for alkalinity from CSG. Acidic shallow groundwater along the margins of the Griman Creek Formation in the Lower Border Rivers and Lower Balonne River catchments- predisposed to acid saline groundwater and ASS formation in the excavated channels; Level of risk of ASS has not been quantified.ASS found in effluent ponds and in several north-draining streams and wetlands just north of the Granite Belt, in the uppermost reaches of the Condamine River catchment.Consequence: Major financial loss; Corrosion of pipes; Health impacts to animals; Risks to crop health.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM203







Eutrophication



Lower Balonne Surface Water Rare Minor Low Low

Likelihood: Lack of development etc. Not a receiving area - it is a distributary (delta) system. Low potential for acid mine drainage. Potential for alkalinity from CSG. Acidic shallow groundwater along the margins of the Griman Creek Formation in the Lower Border Rivers and Lower Balonne River catchments- predisposed to acid saline groundwater and ASS formation in the excavated channels; Level of risk of ASS has not been quantified.ASS found in effluent ponds and in several north-draining streams and wetlands just north of the Granite Belt, in the uppermost reaches of the Condamine River catchment.Consequence: Minor impact on recreation; Irritation to eyes, skin and mucous membranes; Gastrointestinal irritation; Irreversible damage to eyes.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

WM204


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; As above for comments - lack of development etc. Not a receiving area - it is a distributary (delta) system. Consequence: Moderate financial impact; Thermal tolerance of species is known; Limits recruitment of species.Uncertainty: Low as localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM205



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; As above for comments - lack of development etc. Not a receiving area - it is a distributary (delta) system. Consequence: Moderate impact on aquatic ecosystem; Know temperature will impact but not the extent of this impact; Thermal tolerance of these species monitoring required; Limits recruitment of species; High temperature reduces dissolved oxygen; effects reproduction and respiration rate; increases susceptibility to disease; alters food availability.Uncertainty: Low as localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM206




natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; lack of development etc. Not a receiving area - it is a distributary (delta) system. Consequence: Insignificant impacts on community resource as temperature impacts on water quality (e.g. elevated temperature promoting cyanobacteria colonies) will be treated prior to consumption.Uncertainty: Medium as drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.




WM207


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Lack of development etc. Not a receiving area - it is a distributary (delta) system. Consequence: Minimal or no financial impacts. Uncertainty: Medium as drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM208



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; As above for comments - lack of development etc. Not a receiving area - it is a distributary (delta) system. Consequence: Minor impact on irrigation water; Cold water can stress crops.Uncertainty: Medium as drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM209





natural range




Reduced flow.



Lower Balonne Surface Water Rare Insignificant Low Low

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Development not expected - comments as per sediment; Not a receiving area - it is a distributary (delta) system. Consequence: Minimal or no impact on community resource.Uncertainty: Low as localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

LM210



environmental value






Lower Border Rivers

Surface Water- Localised: Lower

Weir RiverUnlikely Moderate Low Low

Likelihood: Hotspot: Lower Weir River- Elevated Electrical Conductivity (Max 2550ug/L); High concentration of irrigated land use throughout catchment; Gully erosion in uplands. Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Exceedance of guideline can result in physiological responses: Loss of sensitive species; Decreases metabolism, feeding & reproduction; Susceptibility to other stressors; Behaviour modification; Altered microbial activity (decreases nutrient cycling, primary productivity, algal C food source decreased).Uncertainty: Low as presence of drivers confirmed by local knowledge and land use maps (Qld Globe) supporting data.

WM211


environmental value

Dissolved oxygen




Eutrophication



Lower Border Rivers Surface Water Unlikely Moderate Low Medium

Likelihood: Statistical analysis shows exceedance of Aquaculture guideline as unlikely; Drivers present but not enough to increase likelihood: Linked to sediments; Irrigation and dryland cropping landuse; Development not expected in future.Consequence: Moderate individual financial loss; Oxygen availability critical to species development and reproduction.Uncertainty: Medium as ANZG dissolved oxygen guideline for Aquatic ecosystem was used in lieu of an Aquaculture guideline - This guideline may be conservative. Drivers present but identified by local experts as having localised risks only - data (mg/L) supports this conclusion (N=148).

WM212



environmental value

Dissolved oxygen




Eutrophication



Lower Border Rivers Surface Water Unlikely Moderate Low Low

Likelihood: Statistical analysis shows exceedance of Aquatic guideline as unlikely; Drivers present but not enough to increase likelihood: Linked to sediments; Irrigation and dryland cropping landuse; Development not expected in future.Consequence: Moderate impact on aquatic ecosystem- Risk of eutrophication increased, oxygen availability critical to species diversity and habitat. Potential for blackwater event.Uncertainty: Low as drivers present but identified by local experts as having localised risks only - data supports this conclusion (N=148).




WM213



Dissolved oxygen




Eutrophication




Likelihood: Drivers present but not enough to increase likelihood: Linked to sediments; Irrigation and dryland cropping landuse; Development not expected in future.Consequence: Moderate impact on community resource; Low dissolved oxygen can encourage transformation of compounds to others that may pose a health risk or be difficult to treat (WHO 2004, p215); Eutrophication risk increased when dissolved oxygen is less than 80% saturation (NHMRC 2008) - poor taste associated.Uncertainty: Medium as drivers are localised as identified by local experts and land use maps (Queensland Globe), however no guideline exists to assess data against.

WM214


environmental value

Dissolved oxygen




Eutrophication



Lower Border Rivers Surface Water Rare Insignificant Low Medium

Likelihood: Drivers present but not enough to increase likelihood: Linked to sediments; Irrigation and dryland cropping landuse; Development not expected in future; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Minimal individual financial loss. Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present but identified by local experts as having localised risks only - data (mg/L) supports this conclusion (N=148).

WM215



environmental value

Dissolved oxygen




Eutrophication



Lower Border Rivers Surface Water Rare Moderate Low Medium

Likelihood: Drivers present but not enough to increase likelihood: Linked to sediments; Irrigation and dryland cropping landuse; Development not expected in future; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Moderate individual financial loss; Low dissolved oxygen in irrigation water can be detrimental to plant health; Elevated dissolved oxygen can promote eutrophication which can be detrimental to stock health. Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present but identified by local experts as having localised risks only - data (mg/L) supports this conclusion (N=148).

WM216




Dissolved oxygen




Eutrophication



Lower Border Rivers Surface Water Possible Minor Low Medium

Likelihood: Statistical analysis shows exceedance of NHMRC Primary Recreation guideline as possible; Drivers present but not enough to increase likelihood: Linked to sediments; Irrigation and dryland cropping landuse; Development not expected in future.Consequence: Minor impact on recreation values and amenity; Indirect outcome of elevated/reduced dissolved oxygen: Risk of eutrophication increased, Potential for blackwater event - These events would reduce the visual amenity and pose a potential health risk, restricting access to these waters for the duration of the event.Uncertainty: Drivers present but identified by local experts as having localised risks only - data supports this conclusion (N=148). However risks to secondary and visual recreation assessed by the impact of indirect outcomes as no guideline exists.

LM217


environmental value

Elevated levels of

cyanobacteria.





aren't available.

Lower Border Rivers Surface Water Unlikely Minor Low Medium

Likelihood: Continuation of best practice in agriculture is required to keep risk low. Minimal development anticipated; Development not expected - comments as per sediment; Drivers present: Predominantly grazing and cropping and irrigated production with minor forestry Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Stimulation of algal growth; Fish kills.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM218



environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Statistical analysis shows ANZG Aquatic ecosystems guideline ; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated.Consequence: Moderate impact on aquatic ecosystem- potential toxic effects on other algae, invertebrates and fish, impacts to plants and benthic algae depending on toxin; Potentially lethal at high doses (NHMRC, 2008); can trigger anoxic conditions.Uncertainty: Medium as local exerts identified a lack of drivers present, however Qld globe identified no data to validate this.

LM219



Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Unlikely; Continuation of best practice in agriculture is required to keep risk low. Minimal development anticipated.Consequence: Moderate impact on community resource; harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- Blooms are relatively easy to treat in raw water, once the species of bloom is known.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.




LM220


environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Continuation of best practice in agriculture is required to keep risk low. Minimal development anticipated.Consequence: Minimal individual financial loss.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM221



environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Continuation of best practice in agriculture is required to keep risk low. Minimal development anticipated Consequence: Moderate individual financial loss; Harmful effects on tissues, cells or organisms; Sheep often more susceptible than cattle; Poisoning upon ingestion- often results in death but severity dependent on toxin & age of bloom (NHMRC, 2008) - Not an issue for irrigation waters.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM222




Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Continuation of best practice in agriculture is required to keep risk low. Minimal development anticipated. Consequence: Moderate impact on community resource, recreation values and amenity; Harmful effects on tissues, cells or organisms; Depending on toxin, potentially lethal at high doses (NHMRC, 2008).Uncertainty: Medium as low data sample size (N=7); No drivers identified in internal risk assessment.

LM223


environmental value








Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Development not expected - comments as per sediment; Drivers present: Predominantly grazing and cropping and irrigated production with minor forestry. Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Stimulation of algal growth; Fish kills.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM224



environmental value








Likelihood: Statistical analysis shows exceedance of Basin Plan A2 Target application zone guideline for Total Phosphorous is unlikely and possible for Total Nitrogen; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Development not expected - comments as per sediment; Drivers present: Predominantly grazing and cropping and irrigated production with minor forestry.Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations; Aquatic biota susceptible, mass fatalities may occur.Uncertainty: Medium as although drivers identified by local experts & land use maps (Qld Globe) appear to be addressed by BMP and this is supported by the data (TN: N=647 & TP: N=662) there is uncertainty surrounding CSG in the upper Moonie and unknown impacts downstream.

LM225










Likelihood: Exceedance considered to be unlikely; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas; Town water treated before consumption.Consequence: Moderate impact to community resource as although raw water will go for treatment prior to consumption, some nutrients can reduce the effectiveness of disinfection; Human health risk; Stimulation of algal growth; Of particular issue for consumers of bore/ground water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value and no data to support.




LM226


environmental value







Lower Border Rivers Surface Water Rare Minor Low Medium

Likelihood: Expert knowledge considered exceedance of industry use guideline as rare; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Development not expected - comments as per sediment; Drivers present however industry water use can tolerate concentrations of nutrients that would pose risk for other uses of water: Predominantly grazing and cropping and irrigated production with minor forestry. Consequence: Minor financial losses; Lower as industry isn't a major land use- localised effects only. Uncertainty: Medium as although drivers identified by local experts & land use maps (Qld Globe) appear to be addressed by BMP and this is supported by the data (TN: N=647 & TP: N=662) there is uncertainty surrounding CSG in the upper Moonie and unknown impacts downstream.

LM227



environmental value








Likelihood: Statistical analysis shows exceedance of ANZG Irrigation guideline for Total Phosphorous and Total Nitrogen as rare; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Development not expected - comments as per sediment; Drivers present: Predominantly grazing and cropping and irrigated production with minor forestry. Consequence: Significant financial loss; Stimulation of algal growth in stock water; Poisoning, which can result in loss of productivity or death; Irrigation water containing nutrients is beneficial for plants; Stimulation of algal growth.Uncertainty: Medium as although drivers identified by local experts & land use maps (Qld Globe) appear to be addressed by BMP and this is supported by the data (TN: N=647 & TP: N=662) there is uncertainty surrounding CSG in the upper Moonie and unknown impacts downstream.

LM228










Lower Border Rivers Surface Water Possible Minor Low Low

Likelihood: Statistical analysis shows NHMRC Recreation guideline for Total Phosphorous as possibly exceeded; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Development not expected - comments as per sediment.Consequence: Minor impact on community resource, recreation values and amenity; Increases risk of eutrophication & related aesthetic impacts (smells); Fish kills.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) appear to be addressed by BMP- this is supported by the data (TP: N=662).

LM229


environmental value

Elevated levels of


contaminants







Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas; Drivers present: Predominantly grazing and cropping and irrigated production with minor forestry. Consequence: Minor financial loss as low prevalence of aquaculture in catchment.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM230



environmental value

Elevated levels of


contaminants







Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas; Drivers present: Predominantly grazing and cropping and irrigated production with minor forestry. Consequence: Moderate impacts on aquatic ecosystem.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM231



Elevated levels of


contaminants






Lower Border Rivers Surface Water Rare Major Low Medium

Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Silver Spur near Texas - heavy metals; Hotspot addressed under risk to aquatic ecosystems; Predominantly grazing and cropping and irrigated production.Consequence: Major impact to community resource as pesticides and other contaminants are not easily detected and are expensive to treat; Human health impacts.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.




LM232


environmental value

Elevated levels of


contaminants







Likelihood: Small proportion of industrial land use in risk assessment area; Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Predominantly grazing and cropping and irrigated production with minor forestry; Rapidly rising groundwater which would translate to surface water EC of 50000; Minor risk of discharge from a silver mine in the catchment (Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012); Salt flux in upper border will go up and down in climatic extremes, salt out of the traprock in the wet.Consequence: Moderate financial impact; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) show drivers present but no data to support.

LM233



environmental value

Elevated levels of


contaminants







Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas; Drivers present: Predominantly grazing and cropping and irrigated production with minor forestry.Consequence: Moderate financial impacts; Animal health risk; Human health risk.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM234




Elevated levels of


contaminants







Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas; Drivers present: Predominantly grazing and cropping and irrigated production with minor forestry. Consequence: Moderate impact on recreation; Human health issue.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM235


environmental value






Lower Border Rivers Surface Water Rare Moderate Low Low

Likelihood: Statistical analysis of water quality data shows exceedance of ANZG freshwater Aquaculture guideline as rare; Rapidly rising groundwater which would translate to surface water EC of 50000; Drivers present: Predominantly grazing and cropping and irrigated production with minor forestry; Minor risk of discharge from a silver mine in the catchment (Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012); Salt flux in upper border will go up and down in climatic extremes, salt out of the traprock in the wet.Consequence: Moderate financial impact; Low prevalence of aquaculture land use; Productivity influenced (growth stunted by expending energy elsewhere); Fatalities in extreme conditions [ANZG 2000].Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data (N=906); Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM236



environmental value







Likelihood: Statistical analysis of water quality data shows exceedance of ANZG Aquatic ecosystems guideline is rare; Rapidly rising groundwater which would translate to surface water EC of 50000; Drivers present: Predominantly grazing and cropping and irrigated production with minor forestry; Minor risk of discharge from a silver mine in the catchment (Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012); Salt flux in upper border will go up and down in climatic extremes, salt out of the traprock in the wet.Consequence: Moderate impacts on aquatic ecosystem; Physiological responses; Death; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors; Behaviour modification; Altered microbial activity (decreases nutrient cycling, primary productivity, algal C food source decreased) [Q-catchments, 2015.].Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data (N=906).




LM237









Likelihood: Local experts & data analysis supports the conclusion that it is unlikely salinity concentrations would be elevated to an extent that this water would be unsuitable for use; Rapidly rising groundwater which would translate to surface water EC of 50000; Drivers present: Predominantly grazing and cropping and irrigated production with minor forestry; Minor risk of discharge from a silver mine in the catchment (Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012); Salt flux in upper border will go up and down in climatic extremes, salt out of the traprock in the wet.Consequence: Moderate impact on community resource as saline water is difficult to treat; Aesthetic quality impacted (taste); Health impacts in extreme cases.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to compare data against.

LM238


environmental value







Likelihood: Small proportion of industrial land use in risk assessment area; Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Predominantly grazing and cropping and irrigated production with minor forestry; Rapidly rising groundwater which would translate to surface water EC of 50000;; Minor risk of discharge from a silver mine in the catchment (Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012); Salt flux in upper border will go up and down in climatic extremes, salt out of the traprock in the wet.Consequence: Moderate financial impact; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM239



environmental value







Likelihood: Rapidly rising groundwater which would translate to surface water EC of 50000; Drivers present: Predominantly grazing and cropping and irrigated production with minor forestry; Minor risk of discharge from a silver mine in the catchment (Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012); Salt flux in upper border will go up and down in climatic extremes, salt out of the traprock in the wet.Consequence: Moderate financial impact; Reduced plant productivity; Crop failure; Reduced livestock productivity; Salt poisoning resulting in death.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM240









Lower Border Rivers Surface Water Unlikely Minor Low Low

Likelihood: Rapidly rising groundwater which would translate to surface water EC of 50000; Drivers present: Predominantly grazing and cropping and irrigated production with minor forestry; Minor risk of discharge from a silver mine in the catchment (Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012); Salt flux in upper border will go up and down in climatic extremes, salt out of the traprock in the wet.Consequence: Primary - exposure to unsanitary water under extreme circumstance (i.e. decaying aquatic life); salinity influences the activation of viruses [NHMRC- Guidelines for managing risks in Rec water]; Secondary - Impacts of decaying aquatic life (eutrophication, exposure to pathogen etc.);Aesthetic - Salt crusts; dead aquatic life and resultant impacts (poor smell, upsetting etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.




LM241


environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas. Consequence: Minor financial impact; Low prevalence of aquaculture in catchment; Reduced light penetration; Physiological damage; Smothering.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) and data supports this.




LM242



Elevated levels of

suspended matter.



Wave wash





Likelihood: Exceedance considered to be unlikely; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas; Town water treated before consumption.Consequence: Minor impact to community resource as suspended solids are relatively easy and inexpensive to remove from raw water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM243


environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas.Consequence: Minor financial loss; Low prevalence of industrial land use in Upper Condamine.Uncertainty: Low as drivers are present (land use) as identified by local experts & land use maps (Qld Globe) and data supports this.

LM244



environmental value

Elevated levels of

suspended matter.



Wave wash




Lower Border Rivers Surface Water Rare Minor Low Medium

Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas.Consequence: Minor financial impact; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) although no local guideline value to assess data against.

LM245




Elevated levels of

suspended matter.



Wave wash




Lower Border Rivers Surface Water Rare Minor Low Low

Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas.Consequence: Minor financial impact; Visually displeasing; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments; L638.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM246


environmental value

Elevated pathogen

counts




aren't available.

Lower Border Rivers Surface Water Rare Moderate Low High

Likelihood: Exceedance of Aquaculture and Human Consumers of Aquatic Foods guideline is rare; Drivers not present: Minimal development anticipated; Not currently sampling for E. coli or any pathogens instream; Continuation of best practice in agriculture is required to keep risk low. Consequence: Significant financial loss and human health risk; Aquatic biota can develop physiological defects; Human health impacted by viruses caused by pathogen.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no known guideline value and no data to support.

LM247



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Exceedance of Aquaculture and Human Consumers of Aquatic Foods guideline is rare; Drivers not present: Minimal development anticipated; Not currently sampling for E. coli or any pathogens instream; Continuation of best practice in agriculture is required to keep risk low. Consequence: Moderate impact on ecosystem; Aquatic biota can develop physiological defects; Mass fatalities; Sensitive species most susceptible (sensitive life history or certain sensitive developmental stages). Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.




LM248



Elevated pathogen

counts




aren't available.

Lower Border Rivers Surface Water Rare Minor Low High

Likelihood: Drivers not present: Minimal development anticipated; Not currently sampling for E. coli or any pathogens instream; Continuation of best practice in agriculture is required to keep risk low. Consequence: Minor impact to community resource as raw water will go for treatment prior to consumption; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no local guideline value and no data to support.




LM249


environmental value

Elevated pathogen

counts




aren't available.

Lower Border Rivers Surface Water Rare Insignificant Low High

Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Not currently sampling for E. coli or any pathogens instream. Consequence: Minimal or no financial losses.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM250



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Drivers not present: Minimal development anticipated; Not currently sampling for E. coli or any pathogens instream; Continuation of best practice in agriculture is required to keep risk low; Not currently sampling for E. coli or any pathogens instream. Consequence: Significant financial loss; Viruses caused by pathogens can cause miscarriage, neurological disorders & death in cattle & swine.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM251




Elevated pathogen

counts




aren't available.


Likelihood: Drivers not present: Minimal development anticipated; Not currently sampling for E. coli or any pathogens instream; Continuation of best practice in agriculture is required to keep risk low. Consequence: Moderate disturbance to recreation values and amenity; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM252


environmental value




Eutrophication



Lower Border Rivers Surface Water Rare Major Low Low

Likelihood: Traprock - Some localised metalliferous areas unknown GW issues. - may have acidic leachate; Rapidly rising groundwater which would translate to surface water pH 4. Consequence: Major financial impact; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.).Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data; Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM253






Eutrophication




Likelihood: Local experts & data analysis supports the conclusion that it is unlikely that pH would be outside natural ranges to an extent that this water would be unsuitable for use. Consequence: Minor impact to community resource as pH is easily & inexpensively corrected in the water treatment process; Human health impacts; Corrosion of pipes.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM254


environmental value




Eutrophication




Likelihood: Traprock - Some localised metalliferous areas unknown GW issues. - may have acidic leachate; Rapidly rising groundwater which would translate to surface water pH 4.Consequence: Moderate financial impact; Corrosion of pipes. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM255



environmental value




Eutrophication



Lower Border Rivers Surface Water Rare Major Low Low

Likelihood: Traprock - Some localised metalliferous areas unknown GW issues. - may have acidic leachate; Rapidly rising groundwater which would translate to surface water pH 4.Consequence: Major financial loss; Corrosion of pipes; Health impacts to animals; Risks to crop health.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM256







Eutrophication



Lower Border Rivers Surface Water Rare Minor Low Low

Likelihood: Traprock - Some localised metalliferous areas unknown GW issues. - may have acidic leachate; Rapidly rising groundwater which would translate to surface water pH 4.Consequence: Minor impact on recreation; Irritation to eyes, skin and mucous membranes; Gastrointestinal irritation; Irreversible damage to eyes.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.




WM257


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Releases from Glenlyon Dam are known to have a cold water plume -This was addressed as a hotspot; Development not expected - comments as per sediment.Consequence: Moderate financial impact; Thermal tolerance of species is known; Limits recruitment of species.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM258



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Releases from Glenlyon Dam are known to have a cold water plume -This was address as a hotspot; Development not expected - comments as per sediment.Consequence: Moderate impact on aquatic ecosystem; Know temperature will impact but not the extent of this impact; Thermal tolerance of these species monitoring required; Limits recruitment of species; High temperature reduces dissolved oxygen; effects reproduction and respiration rate; increases susceptibility to disease; alters food availability.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM259




natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be elevated to an extent that this water would be unsuitable for use; Development not expected - comments as per sediment.Consequence: Insignificant impacts on community resource as temperature impacts on water quality (e.g. elevated temperature promoting cyanobacteria colonies) will be treated prior to consumption.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM260


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Releases from Glenlyon Dam are known to have a cold water plume -This was addressed as a hotspot; Development not expected - comments as per sediment.Consequence: Minimal or no financial impacts.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM261



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Releases from Glenlyon Dam are known to have a cold water plume -This is addressed as a hotspot; Development not expected - comments as per sediment.Consequence: Minor impact on irrigation water; Cold water can stress crops.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM262





natural range




Reduced flow.



Lower Border Rivers Surface Water Rare Insignificant Low Low

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Releases from Glenlyon Dam are known to have a cold water plume -This was addressed as a hotspot; Development not expected - comments as per sediment.Consequence: Minimal or no impact on community resource.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM263



Dissolved oxygen




Eutrophication



Lower Moonie Surface Water Unlikely Moderate Low Medium

Likelihood: Linked to sediments; No drivers identified by local experts. Consequence: Moderate impact on community resource; Low dissolved oxygen can encourage transformation of compounds to others that may pose a health risk or be difficult to treat (WHO 2004, p215); Eutrophication risk increased when dissolved oxygen is less than 80% saturation (NHMRC 2008) - poor taste associated.Uncertainty: No drivers present as identified by local experts and land use maps (Queensland Globe), however no guideline exists to assess data against.




WM264


environmental value

Dissolved oxygen




Eutrophication



Lower Moonie Surface Water Rare Insignificant Low High

Likelihood: Linked to sediments; No drivers identified by local experts; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Minimal individual financial loss.Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present but identified by local experts as having localised risks only - no data to validate this.

WM265



environmental value

Dissolved oxygen




Eutrophication



Lower Moonie Surface Water Rare Moderate Low High

Likelihood: Linked to sediments; No drivers identified by local experts; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Moderate individual financial loss; Low dissolved oxygen in irrigation water can be detrimental to plant health; Elevated dissolved oxygen can promote eutrophication which can be detrimental to stock health.Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present but identified by local experts as having localised risks only - no data to validate this.

WM266




Dissolved oxygen




Eutrophication



Lower Moonie Surface Water Unlikely Minor Low Medium

Likelihood: Statistical analysis shows exceedance of NHMRC Primary Recreation guideline as unlikely; Drivers not identified by local experts.Consequence: Minor impact on recreation values and amenity; Indirect outcome of elevated/reduced dissolved oxygen: Risk of eutrophication increased, Potential for blackwater event- These events would reduce the visual amenity and pose a potential health risk, restricting access to these waters for the duration of the event.Uncertainty: Drivers not identified by local experts; Reliable data sample size (mg/L)(N=147). Risks to secondary and visual recreation assessed by the impact of indirect outcomes as no guideline exists.

LM267


environmental value

Elevated levels of

cyanobacteria.





aren't available.

Lower Moonie Surface Water Unlikely Insignificant Low Medium

Likelihood: Development not expected - comments as per sediment. Confidence kept low in the likelihood due to CSG in the upper Moonie and unknown impact downstream. Consequence: Minimal or no financial loss as no aquaculture in catchment. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM268



environmental value

Elevated levels of

cyanobacteria.





aren't available.

Lower Moonie Surface Water Unlikely Moderate Low Low

Likelihood: Local experts identified exceedance of guideline as unlikely- No data available; Development not expected - comments as per sediment.Consequence: Moderate impact on aquatic ecosystem- potential toxic effects on other algae, invertebrates and fish, impacts to plants and benthic algae depending on toxin; Potentially lethal at high doses (NHMRC, 2008); can trigger anoxic conditions.Uncertainty: Medium as local exerts identified a lack of drivers present, however Qld globe identified no data to validate this.

LM269



Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Unlikely; Development not expected - comments as per sediment.Consequence: Moderate impact on community resource; harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- Blooms are relatively easy to treat in raw water, once the species of bloom is known.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM270


environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Development not expected - comments as per sediment.Consequence: Minimal individual financial loss.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.




LM271



environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Development not expected - comments as per sediment.Consequence: Moderate individual financial loss; Harmful effects on tissues, cells or organisms; Sheep often more susceptible than cattle; Poisoning upon ingestion- often results in death but severity dependent on toxin & age of bloom (NHMRC, 2008) - Not an issue for irrigation waters.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM272




Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Development not expected - comments as per sediment.Consequence: Moderate impact on community resource, recreation values and amenity; Harmful effects on tissues, cells or organisms; Depending on toxin, potentially lethal at high doses (NHMRC, 2008).Uncertainty: High uncertainty as low sample size (N=7) and local knowledge isn't supported by data.

LM273


environmental value







Lower Moonie Surface Water Unlikely Insignificant Low High

Likelihood: Development not expected - comments as per sediment- Drivers present in grazing and cropping land use, although best management practice programs are assumed to reduce likelihood of nutrient exceedances. Consequence: Minimal or no financial loss as no aquaculture in catchment.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against; Likelihood confidence influenced by CSG in the upper Moonie and unknown impact downstream.

LM274









Lower Moonie Surface Water Unlikely Moderate Low High

Likelihood: Development not expected - comments as per sediment. Confidence kept low in the likelihood due to CSG in the upper Moonie and unknown impact downstream. Consequence: Moderate impact to community resource as although raw water will go for treatment prior to consumption, some nutrients can reduce the effectiveness of disinfection; Human health risk; Stimulation of algal growth; Of particular issue for consumers of bore/ground water.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against; Confidence influenced by CSG in the upper Moonie and unknown impact downstream.

LM275


environmental value







Lower Moonie Surface Water Rare Moderate Low Low

Likelihood: Expert knowledge considered exceedance of industry use guideline as rare; Drivers present however industry water use can tolerate concentrations of nutrients that would pose risk for other uses of water: Development not expected - comments as per sediment. Confidence kept low in the likelihood due to CSG in the upper Moonie and unknown impact downstream. Consequence: Minor financial losses; Industry isn't a major land use in this catchment- localised impacts only.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN: N=99 & TP: N=104).

LM276



environmental value








Likelihood: Statistical analysis shows exceedance of ANZG Irrigation guideline for Total Phosphorous and Total Nitrogen as rare; Development not expected - comments as per sediment. Confidence kept low in the likelihood due to CSG in the upper Moonie and unknown impact downstream. Consequence: Significant financial loss; Stimulation of algal growth in stock water; Poisoning, which can result in loss of productivity or death; Irrigation water containing nutrients is beneficial for plants; Stimulation of algal growth; Stimulation of algal growth; Poisoning, which can result in loss of productivity or death.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN: N=99 & TP: N=104).

LM277


environmental value

Elevated levels of


contaminants






Lower Moonie Surface Water Unlikely Insignificant Low Medium

Likelihood: Development not expected - comments as per sediment.Consequence: Minimal or no financial loss as no aquaculture in catchment. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.




LM278



environmental value

Elevated levels of


contaminants







Likelihood: Development not expected - comments as per sediment.Consequence: Moderate impacts on aquatic ecosystem.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM279



Elevated levels of


contaminants






Lower Moonie Surface Water Rare Major Low Medium

Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Various Goondoola Basin studies and DNRM drilling programs (AB); Predominantly grazing and cropping with minor production forestry.Consequence: Major impact to community resource as pesticides and other contaminants are not easily detected and are expensive to treat; Human health impacts.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM280


environmental value

Elevated levels of


contaminants






Lower Moonie Surface Water Rare Minor Low Medium

Likelihood: Drivers limited, industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Lack of drivers: Predominantly grazing and cropping with minor production forestry. Consequence: Minor financial impact; Small proportion of industrial land use in risk assessment area; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) show drivers present but no data to support.

LM281



environmental value

Elevated levels of


contaminants







Likelihood: Development not expected - comments as per sediment.Consequence: Moderate financial impacts; Animal health risk; Human health risk.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM282




Elevated levels of


contaminants







Likelihood: Local experts support the conclusion that it is unlikely that pesticides would be elevated to an extent that this water would be unsuitable for use; Various Goondoola Basin studies and DNRM drilling programs (AB); Predominantly grazing and cropping with minor production forestry.Consequence: Moderate impact on recreation; Human health issue.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM283


environmental value







Likelihood: Statistical analysis of water quality data shows exceedance of ANZG freshwater Aquaculture guideline as rare; Low prevalence of aquaculture land use; Lack of drivers: Salinity impacts not expected to increase in next 10 years - current irrigation minimal and not expected to expand; High salt loads in the system - if mobilised it will cause impacts; Predominantly grazing and cropping with minor production forestry; Mobilisation of ions in sediments from grazing possible as high salt loads present in system.Consequence: Moderate financial impact; Productivity influenced (growth stunted by expending energy elsewhere); Fatalities in extreme conditions [ANZG 2000].Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data (N= 286); Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.




LM284



environmental value







Likelihood: Statistical analysis of water quality data shows exceedance of ANZG Aquatic ecosystems guideline as rare; Lack of drivers: Salinity impacts not expected to increase in next 10 years - current irrigation minimal and not expected to expand; High salt loads in the system - if mobilised it will cause impacts; Predominantly grazing and cropping with minor production forestry; Mobilisation of ions in sediments from grazing possible as high salt loads present in system.Consequence: Moderate impacts on aquatic ecosystem; Physiological responses; Death; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors; Behaviour modification; Altered microbial activity (decreases nutrient cycling, primary productivity, algal C food source decreased) [Q-catchments, 2015.].Uncertainty: Low as no drivers identified by expert local knowledge & land use maps (Qld Globe), this is supported by the data (N= 286).

LM285









Likelihood: Local experts & data analysis supports the conclusion that it is unlikely salinity concentrations would be elevated to an extent that this water would be unsuitable for use; Lack of drivers: Salinity impacts not expected to increase in next 10 years - current irrigation minimal and not expected to expand; High salt loads in the system - if mobilised it will cause impacts; Predominantly grazing and cropping with minor production forestry; Mobilisation of ions in sediments from grazing possible as high salt loads present in system.Consequence: Moderate impact on community resource as saline water is difficult to treat; Aesthetic quality impacted (taste); Health impacts in extreme cases.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to compare data against.

LM286


environmental value







Likelihood: Lack of drivers: Salinity impacts not expected to increase in next 10 years - current irrigation minimal and not expected to expand; High salt loads in the system - if mobilised it will cause impacts; Predominantly grazing and cropping with minor production forestry; Mobilisation of ions in sediments from grazing possible as high salt loads present in system.Consequence: Moderate financial impact; Small proportion of industrial land use in risk assessment area; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM287



environmental value







Likelihood: Lack of drivers: Salinity impacts not expected to increase in next 10 years - current irrigation minimal and not expected to expand; High salt loads in the system - if mobilised it will cause impacts; Predominantly grazing and cropping with minor production forestry; Mobilisation of ions in sediments from grazing possible as high salt loads present in system.Consequence: Moderate financial impact; Reduced plant productivity; Crop failure; Reduced livestock productivity; Salt poisoning resulting in death.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.




LM288









Lower Moonie Surface Water Unlikely Minor Low Low

Likelihood: Lack of drivers: Salinity impacts not expected to increase in next 10 years - current irrigation minimal and not expected to expand; High salt loads in the system - if mobilised it will cause impacts; Predominantly grazing and cropping with minor production forestry; Mobilisation of ions in sediments from grazing possible as high salt loads present in system.Consequence: Primary - exposure to unsanitary water under extreme circumstance (i.e. decaying aquatic life); salinity influences the activation of viruses [NHMRC- Guidelines for managing risks in Rec water]; Secondary - Impacts of decaying aquatic life (eutrophication, exposure to pathogens etc.); Aesthetic - Salt crusts; dead aquatic life and resultant impacts (poor smell, upsetting etc.).Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM289



Elevated levels of

suspended matter.



Wave wash





Likelihood: Exceedance considered to be unlikely; Less infrastructure construction for the mining development. Jon Marshall et al waterhole persistence in the Moonie, shown deposited sediment is accumulating. Unknown risk of it being mobilised. Consequence: Minor impact to community resource as suspended solids are relatively easy and inexpensive to remove from raw water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM290


environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Less infrastructure construction for the mining development. Jon Marshall et al waterhole persistence in the Moonie, shown deposited sediment is accumulating. Unknown risk of it being mobilised. Consequence: Minor financial impact; Small proportion of industrial land use in risk assessment area; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Low as drivers are present (land use) as identified by local experts & land use maps (Qld Globe) and data supports this.

LM291



environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Less infrastructure construction for the mining development. Jon Marshall et al waterhole persistence in the Moonie, shown deposited sediment is accumulating. Unknown risk of it being mobilised. Consequence: Minor financial impact; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) identify drivers, but no local guideline value to assess against.

LM292




Elevated levels of

suspended matter.



Wave wash





Likelihood: Less infrastructure construction for the mining development. Jon Marshall et al waterhole persistence in the Moonie, shown deposited sediment is accumulating. Unknown risk of it being mobilised. Consequence: Minor financial impact; Visually displeasing; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.




LM293


environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Development not expected - comments as per sediment.Consequence: Significant financial loss and human health risk; Aquatic biota can develop physiological defects; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) and no known guideline value and no data to support.

LM294



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Development not expected - comments as per sediment; Not currently sampling for E. coli or any pathogens instream. Consequence: Moderate impact on ecosystem; Aquatic biota can develop physiological defects; Mass fatalities; Sensitive species most susceptible (sensitive life history or certain sensitive developmental stages). Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) and no data to support.

LM295



Elevated pathogen

counts




aren't available.

Lower Moonie Surface Water Rare Minor Low High

Likelihood: Development not expected - comments as per sediment; Not currently sampling for E. coli or any pathogens instream. Consequence: Minor impact to community resource as raw water will go for treatment prior to consumption; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) and no local guideline value and no data to support.

LM296


environmental value

Elevated pathogen

counts




aren't available.

Lower Moonie Surface Water Rare Insignificant Low High

Likelihood: Expert local knowledge identified an exceedance of pathogen guidelines as rare; Drivers not present; Development not expected - comments as per sediment; Not currently sampling for E. coli or any pathogens instream. Consequence: Minimal or no financial losses.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM297



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Development not expected - comments as per sediment; Not currently sampling for E. coli or any pathogens instream. Consequence: Significant financial loss; Viruses caused by pathogens can cause miscarriage, neurological disorders & death in cattle & swine.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) and no data to support.

LM298




Elevated pathogen

counts




aren't available.


Likelihood: Development not expected - comments as per sediment; Not currently sampling for E. coli or any pathogens instream. Consequence: Moderate disturbance to recreation values and amenity; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) and no data to support.

LM299


environmental value




Eutrophication



Lower Moonie Surface Water Rare Major Low Low

Likelihood: Associated with salinity risk. Various Goondoola Basin studies and DNRM drilling programs (AB).Consequence: Major financial impact; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data; Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM300



environmental value




Eutrophication




Likelihood: Associated with salinity risk. Various Goondoola Basin studies and DNRM drilling programs (AB).Consequence: Major impact on aquatic ecosystem; Consequence is localised and short lived; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.).Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.




LM301






Eutrophication




Likelihood: Local experts & data analysis supports the conclusion that it is unlikely that pH would be outside natural ranges to an extent that this water would be unsuitable for use; Associated with salinity risk. Various Goondoola Basin studies and DNRM drilling programs (AB).Consequence: Minor impact to community resource as pH is easily & inexpensively corrected in the water treatment process; Human health impacts; Corrosion of pipes. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM302


environmental value




Eutrophication




Likelihood: Associated with salinity risk. Various Goondoola Basin studies and DNRM drilling programs (AB).Consequence: Moderate financial impact; Corrosion of pipes. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM303



environmental value




Eutrophication




Likelihood: Associated with salinity risk. Various Goondoola Basin studies and DNRM drilling programs (AB).Consequence: Major financial loss; Corrosion of pipes; Health impacts to animals; Risks to crop health.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM304







Eutrophication



Lower Moonie Surface Water Rare Minor Low Low

Likelihood: Associated with salinity risk. Various Goondoola Basin studies and DNRM drilling programs (AB).Consequence: Minor impact on recreation; Irritation to eyes, skin and mucous membranes; Gastrointestinal irritation; Irreversible damage to eyes.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

WM305


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Development not expected - comments as per sediment.Consequence: Moderate financial impact; Thermal tolerance of species is known; Limits recruitment of species.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM306



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Development not expected - comments as per sediment.Consequence: Moderate impact on aquatic ecosystem; Know temperature will impact but not the extent of this impact; Thermal tolerance of these species monitoring required; Limits recruitment of species; High temperature reduces dissolved oxygen; effects reproduction and respiration rate; increases susceptibility to disease; alters food availability.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM307




natural range




Reduced flow.



Lower Moonie Surface Water Rare Insignificant Low Medium

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Development not expected - comments as per sediment.Consequence: Insignificant impacts on community resource as temperature impacts on water quality (e.g. elevated temperature promoting cyanobacteria colonies) will be treated prior to consumption.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.




WM308


environmental value


natural range




Reduced flow.



Lower Moonie Surface Water Rare Insignificant Low Medium

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Development not expected - comments as per sediment.Consequence: Minimal or no financial impacts.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM309



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Development not expected - comments as per sediment.Consequence: Minor impact on irrigation water; Cold water can stress crops.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM310





natural range




Reduced flow.



Lower Moonie Surface Water Rare Insignificant Low Low

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Development not expected - comments as per sediment.Consequence: Minimal or no impact on community resource.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM311


environmental value

Dissolved oxygen




Eutrophication



Maranoa Surface Water Unlikely Moderate Low High

Likelihood: Unlikely to exceeded guideline due to lack of drivers; Changes not likely due to lack of development of existing and new uses; No data to validate.Consequence: Moderate individual financial loss; Oxygen availability critical to species development and reproduction.Uncertainty: ANZG dissolved oxygen guideline for Aquatic ecosystem was used in lieu of an Aquaculture guideline - This guideline may be conservative. Drivers not present as identified by local experts and land use maps (Queensland Globe) - data not available to validate this.

WM312



environmental value

Dissolved oxygen




Eutrophication



Maranoa Surface Water Unlikely Moderate Low Medium

Likelihood: Unlikely to exceeded guideline due to lack of drivers; Changes not likely due to lack of development of existing and new uses; No data to validate.Consequence: Moderate impact on aquatic ecosystem- Risk of eutrophication increased, oxygen availability critical to species diversity and habitat. Potential for blackwater event.Uncertainty: No available data but limited drivers identified by expert knowledge.

WM313



Dissolved oxygen




Eutrophication




Likelihood: Concluded to be unlikely by local experts due to lack of drivers; Changes not likely due to lack of development of existing and new uses; No data to validate.Consequence: Moderate impact on community resource; Low dissolved oxygen can encourage transformation of compounds to others that may pose a health risk or be difficult to treat (WHO 2004, p215); Eutrophication risk increased when dissolved oxygen is less than 80% saturation (NHMRC 2008) - poor taste associated.Uncertainty: No drivers present, although no guideline to assess against and data is not available.

WM314


environmental value

Dissolved oxygen




Eutrophication



Maranoa Surface Water Rare Insignificant Low Medium

Likelihood: Changes not likely due to lack of development of existing and new uses; No data to validate; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Minimal individual financial loss. Uncertainty: No guideline exists. Drivers not present as identified by local experts as having localised risks only - no data to validate this.




WM315



environmental value

Dissolved oxygen




Eutrophication



Maranoa Surface Water Rare Moderate Low Medium

Likelihood: Changes not likely due to lack of development of existing and new uses; No data to validate; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Moderate individual financial loss; Low dissolved oxygen in irrigation water can be detrimental to plant health; Elevated dissolved oxygen can promote eutrophication which can be detrimental to stock health.Uncertainty: No guideline exists. Drivers not present as identified by local experts as having localised risks only - no data available to validate this.

WM316




Dissolved oxygen




Eutrophication



Maranoa Surface Water Unlikely Minor Low Medium

Likelihood: Unlikely to exceeded guideline due to lack of drivers; Changes not likely due to lack of development of existing and new uses; No data to validate.Consequence: Minor impact on recreation values and amenity; Indirect outcome of elevated/reduced dissolved oxygen: Risk of eutrophication increased, Potential for blackwater event- These events would reduce the visual amenity and pose a potential health risk, restricting access to these waters for the duration of the event.Uncertainty: Drivers not present as identified by local experts and land use maps (Queensland Globe) - no data available to validate this; Risks to secondary and visual recreation assessed by the impact of indirect outcomes as no guideline exists.

LM317


environmental value

Elevated levels of

cyanobacteria.





aren't available.

Maranoa Surface Water Unlikely Insignificant Low Medium

Likelihood: Expansion of feedlots, STPs, population development, etc. not anticipated. Localised impacts from "grey nomads" possible using unsewered sites such as Neil Turner Weir camping ground for RV/Caravan sewage pumpout. Consequence: Minimal or no financial loss as no aquaculture in catchment.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM318



environmental value

Elevated levels of

cyanobacteria.




aren't available.


Likelihood: The analysis of water quality data from the Maranoa region indicates that cyanobacteria blooms are unlikely due to the lack of nutrient load in the system. Consequence: Moderate impact on aquatic ecosystem- Harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008).Uncertainty: Low as drivers weren't identified by local experts and nutrient data does not indicate nutrient loading is present in system. Cyanobacteria (Microcystins) data is non-existent, but is needed to validate risk.

LM319



Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Unlikely; Neil Turner Weir at Mitchell in Maranoa catchment. Cyanobacteria impacts occur in the weir periodically. Some recreation in the weir possible. Unlikely to increase. Maranoa RC manages Local Park and length of stay in camping ground. Localised impacts and consequences.Consequence: Moderate impact on community resource; harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- Blooms are relatively easy to treat in raw water, once the species of bloom is known.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM320


environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Neil Turner Weir at Mitchell in Maranoa catchment. Cyanobacteria impacts occur in the weir periodically. Some recreation in the weir possible. Unlikely to increase. Maranoa RC manages Local Park and length of stay in camping ground. Localised impacts and consequences.Consequence: Minimal individual financial loss.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.




LM321



environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Drivers present: Linked to Nutrients.Consequence: Significant individual financial impact- harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- documented cases of livestock fatalities following exposure - Not an issue for irrigation waters.Uncertainty: Medium as drivers weren't identified by local experts but land use maps (Qld Globe) and nutrient data indicate drivers are present - no data to validate this.

LM322




Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Drivers present: Linked to Nutrients. Hotspot: Neil Turner Weir at Mitchell- Cyanobacteria impacts occur in the weir periodically- Unlikely to increase in frequency; Some recreation in the weir- Unlikely to increase.Consequence: Moderate impact on community resource, recreation values and amenity; Harmful effects on tissues, cells or organisms; Depending on toxin, potentially lethal at high doses (NHMRC, 2008).Uncertainty: Medium as drivers weren't identified by local experts but land use maps (Qld Globe) and nutrient data indicate drivers are present. Larger data sample size (N=27) and targeted monitoring would decrease uncertainty.

LM323


environmental value






ANZG if local water quality guidelines aren't available

Maranoa Surface Water Unlikely Insignificant Low Medium

Likelihood: Expansion of feedlots, STPs, population development, etc. not anticipated. Localised impacts from "grey nomads" possible using unsewered sites such as Neil Turner Weir camping ground for RV/Caravan sewage pumpout. Consequence: Minimal or no financial loss as no aquaculture in catchment.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM324



environmental value








Likelihood: Statistical analysis shows exceedance of Basin Plan B1 Target application zone guideline for Total Phosphorous is unlikely and rare for Total Nitrogen; Expansion of feedlots, STPs, population development, etc. not anticipated. Localised impacts from "grey nomads" possible using unsewered sites such as Neil Turner Weir camping ground for RV/Caravan sewage pumpout. Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations; Aquatic biota susceptible, mass fatalities may occur.Uncertainty: Medium as drivers not widespread as identified by local experts & land use maps (Qld Globe)- This is supported by the data (TN: N=50 & TP: N=73). However low likelihood is perhaps reflective of the non-local guideline values used to determine likelihood.

LM325



environmental value







MaranoaSurface Water: Localised- Neil

Turner WeirUnlikely Minor Low High

Likelihood: Statistical analysis shows Basin Plan Target application zone B1 guideline for Total phosphorous and Total Nitrogen unlikely to be exceeded; Hotspot: Possible localised impacts from unsewered sites such as Neil Turner Weir camping ground for RV/Caravan sewage pumpout.Consequence: Minor spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations.Uncertainty: High as nutrient data from Neil Turner Weir (or similar sites) is lacking. Presence of drivers identified by local experts.

LM326










Likelihood: Expansion of feedlots, STPs, population development, etc. not anticipated. Localised impacts from "grey nomads" possible using unsewered sites such as Neil Turner Weir camping ground for RV/Caravan sewage pumpout. Consequence: Moderate impact to community resource as although raw water will go for treatment prior to consumption, some nutrients can reduce the effectiveness of disinfection; Human health risk; Stimulation of algal growth; Of particular issue for consumers of bore/ground water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.




LM327


environmental value






ANZG if local water quality

Maranoa Surface Water Rare Minor Low Low

Likelihood: Expert knowledge considered exceedance of industry use guideline as rare; Drivers present however industry water use can tolerate concentrations of nutrients that would pose risk for other uses of water: Expansion of feedlots, STPs, population development, etc. not anticipated. Localised impacts from "grey nomads" possible using unsewered sites such as Neil Turner Weir camping ground for RV/Caravan sewage pumpout. Consequence: Minor financial losses; Lower as industry isn't a major land use- localised

LM328



environmental value






ANZG if local water quality guidelines aren't available

Maranoa Surface Water Rare Moderate Low Low

Likelihood: Statistical analysis shows exceedance of ANZG Irrigation guideline for Total Phosphorous and Total Nitrogen as rare; Expansion of feedlots, STPs, population development, etc. not anticipated. Localised impacts from "grey nomads" possible using unsewered sites such as Neil Turner Weir camping ground for RV/Caravan sewage pumpout. Consequence: Significant financial loss; Stimulation of algal growth in stock water; Poisoning, which can result in loss of productivity or death; Irrigation water containing nutrients is beneficial for plants; Stimulation of algal growth; Predominantly grazing, with

LM329










Maranoa Surface Water Possible Minor Low Medium

Likelihood: Statistical analysis shows NHMRC Recreation guideline for Total Phosphorous as possibly exceeded; Expansion of feedlots, STPs, population development, etc. not anticipated. Localised impacts from "grey nomads" possible using unsewered sites such as Neil Turner Weir camping ground for RV/Caravan sewage pumpout. Consequence: Minor impact on community resource, recreation values and amenity; Increases risk of eutrophication & related aesthetic impacts (smells); Fish kills.Uncertainty: Medium as drivers not widespread as identified by local experts & land use maps (Qld Globe). This is supported by the data (TN: N=50 & TP: N=73).

LM330


environmental value

Elevated levels of


contaminants






Maranoa Surface Water Possible Insignificant Low Medium

Likelihood: Heavy metals possible with mining development- Impacts from regulated activities such as mining and CSG are regulated, managed and minimised through the Development Application and Environmental Authority approval process.; Parthenium weed - possible risk from the spraying practices, however this is not currently being detected at elevated levels, but considered a higher risk with corporate land managers (e.g. CSG companies) undertaking more regular weed controls Quarry and mining development could have risk of point source impacts e.g. Amby Creek (east of Mitchell.) (Marbango KRA 84 - SPP 2/07 - Quarry Rock Basalt); Grafton Range (Roma) -sodium bicarbonate?; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG; Less CSG

LM331



environmental value

Elevated levels of


contaminants







Likelihood: Heavy metals possible with mining development- assumes that compliance is met with EAs and DAs into the future; Parthenium weed - possible risk from the spraying practices, however this is not currently being detected at elevated levels, but considered a higher risk with corporate land managers (e.g. CSG companies) undertaking more regular weed controls Quarry and mining development could have risk of point source impacts e.g. Amby Creek (east of Mitchell.) (Marbango KRA 84 - SPP 2/07 - Quarry Rock Basalt); Grafton Range (Roma) -sodium bicarbonate?; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG; Less CSG anticipated in Maranoa catchment than Balonne.

LM332



Elevated levels of


contaminants






Maranoa Surface Water Rare Major Low Medium

Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Changes not likely due to lack of development of existing uses or new uses; Parthenium weed - possible risk from the spraying practices, however this is not currently being detected at elevated levels and will be localised, but considered a higher risk with corporate land managers (e.g. CSG companies) undertaking more regular weed controls.Consequence: Major impact to community resource as pesticides and other contaminants are not easily detected and are expensive to treat; Human health impacts. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.




LM333


environmental value

Elevated levels of


contaminants







Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Heavy metals possible with mining development- assumes that compliance is met with EAs and DAs into the future; Parthenium weed - possible risk from the spraying practices, however this is not currently being detected at elevated levels, but considered a higher risk with corporate land managers (e.g. CSG companies) undertaking more regular weed controls Quarry and mining development could have risk of point source impacts e.g. Amby Creek (east of Mitchell.) (Marbango KRA 84 - SPP 2/07 - Quarry Rock Basalt); Grafton Range (Roma) -sodium bicarbonate?; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG; Less CSG anticipated in Maranoa catchment than Balonne. Consequence: Minor financial impact; Low industrial land use in M; Unable to operate

LM334



environmental value

Elevated levels of


contaminants







Likelihood: Heavy metals possible with mining development- assumes that compliance is met with EAs and DAs into the future; Parthenium weed - possible risk from the spraying practices, however this is not currently being detected at elevated levels, but considered a higher risk with corporate land managers (e.g. CSG companies) undertaking more regular weed controls Quarry and mining development could have risk of point source impacts e.g. Amby Creek (east of Mitchell.) (Marbango KRA 84 - SPP 2/07 - Quarry Rock Basalt); Grafton Range (Roma) -sodium bicarbonate?; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG; Less CSG anticipated in Maranoa catchment than Balonne. Consequence: Moderate financial impacts; Animal health risk; Human health risk.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM335




Elevated levels of


contaminants







Likelihood: Heavy metals possible with mining development- assumes that compliance is met with EAs and DAs into the future; Parthenium weed - possible risk from the spraying practices, however this is not currently being detected at elevated levels, but considered a higher risk with corporate land managers (e.g. CSG companies) undertaking more regular weed controls Quarry and mining development could have risk of point source impacts e.g. Amby Creek (east of Mitchell.) (Marbango KRA 84 - SPP 2/07 - Quarry Rock Basalt); Grafton Range (Roma) -sodium bicarbonate?; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG; Less CSG anticipated in Maranoa

t h t th B l

LM336


environmental value


Mobilisation of salt stores in landscape through processes and activities relating to water flow or water management or land management (wetland or dryland salinity). The use of groundwater for irrigation purposes at locations where highly saline upper aquifer water drains to the lower




Maranoa Surface Water Rare Insignificant Low Low

Likelihood: No aquaculture in UM; If development were to occur, statistical analysis of water quality data shows exceedance of ANZG freshwater Aquaculture guideline as rare; Natural salt spikes occurring in top end of catchment with wet weather; Quarry and mining development could have risk of point source impacts e.g. Amby Creek (east of Mitchell.) (Marbango KRA 84 - SPP 2/07 - Quarry Rock Basalt); Grafton Range (Roma) -sodium bicarbonate?; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG; Less CSG anticipated in Maranoa catchment than Balonne.

LM337



environmental value






Maranoa Surface Water Unlikely Moderate Low Low

Likelihood: Statistical analysis of water quality data shows exceedance of ANZG Aquatic ecosystems guideline is unlikely; Natural salt spikes occurring in top end of catchment with wet weather; Quarry and mining development could have risk of point source impacts e.g. Amby Creek (east of Mitchell.) (Marbango KRA 84 - SPP 2/07 - Quarry Rock Basalt); Grafton Range (Roma) -sodium bicarbonate?; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG; Less CSG anticipated in Maranoa catchment than Balonne.Consequence: Moderate impacts on aquatic ecosystem- Naturally low salinity system - could

LM338









Likelihood: Local experts & data analysis supports the conclusion that it is unlikely salinity concentrations would be elevated to an extent that this water would be unsuitable for use; Natural salt spikes occurring in top end of catchment with wet weather; Quarry and mining development could have risk of point source impacts e.g. Amby Creek (east of Mitchell.) (Marbango KRA 84 - SPP 2/07 - Quarry Rock Basalt); Grafton Range (Roma) -sodium bicarbonate?; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG; Less CSG anticipated in Maranoa catchment than Balonne. Consequence: Moderate impact on community resource as saline water is difficult to treat; Aesthetic quality impacted (taste); Health impacts in extreme cases.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to compare data against.




LM339


environmental value






Maranoa Surface Water Unlikely Minor Low Low

Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Natural salt spikes occurring in top end of catchment with wet weather; Quarry and mining development could have risk of point source impacts e.g. Amby Creek (east of Mitchell.) (Marbango KRA 84 - SPP 2/07 - Quarry Rock Basalt); Grafton Range (Roma) -sodium bicarbonate?; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG; Less CSG anticipated in Maranoa catchment than Balonne.Consequence: Minor financial impact; Low industrial land use in M; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM340



environmental value







Likelihood: Natural salt spikes occurring in top end of catchment with wet weather; Quarry and mining development could have risk of point source impacts e.g. Amby Creek (east of Mitchell.) (Marbango KRA 84 - SPP 2/07 - Quarry Rock Basalt); Grafton Range (Roma) -sodium bicarbonate?; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG; Less CSG anticipated in Maranoa catchment than Balonne. Consequence: Greater potential impact on grazing than dryland and irrigated production due to larger proportion of grazing land use; Reduced plant productivity; Crop failure; Reduced livestock productivity; Salt poisoning resulting in death.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM341










Likelihood: Natural salt spikes occurring in top end of catchment with wet weather; Quarry and mining development could have risk of point source impacts e.g. Amby Creek (east of Mitchell.) (Marbango KRA 84 - SPP 2/07 - Quarry Rock Basalt); Grafton Range (Roma) -sodium bicarbonate?; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG; Less CSG anticipated in Maranoa catchment than Balonne.Consequence: Primary - exposure to unsanitary water under extreme circumstance (i.e. decaying aquatic life);.Secondary - Impacts of decaying aquatic life (eutrophication, exposure to pathogen etc.); Aesthetic - Salt crusts; dead aquatic life and resultant impacts (poor smell, upsetting etc.).Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM342


environmental value

Elevated levels of

suspended matter.



Wave wash




Maranoa Surface Water Unlikely Insignificant Low Low

Likelihood: Assuming continued moves towards best practice grazing land management. Possible Future mining development; Dryland cropping not anticipated to expand over 10 years. Consequence: Minimal or no financial loss as no aquaculture in catchment.Uncertainty: Low as drivers are present (land use) as identified by local experts & land use maps (Qld Globe) and data supports this




LM343



environmental value

Elevated levels of

suspended matter.



Wave wash




Maranoa Surface Water Rare Moderate Low Low

Likelihood: Assuming continued moves towards best practice grazing land management. Possible Future mining development; Dryland cropping not anticipated to expand over 10 years. Consequence: Moderate impacts on aquatic ecosystem; Reduced light penetration.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM344



Elevated levels of

suspended matter.



Wave wash





Likelihood: Exceedance considered to be unlikely; Assuming continued moves towards best practice grazing land management; Possible Future mining development; Dryland cropping not anticipated to expand over 10 years. Consequence: Minor impact to community resource as suspended solids are relatively easy and inexpensive to remove from raw water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM345


environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Assuming continued moves towards best practice grazing land management. Possible Future mining development; Dryland cropping not anticipated to expand over 10 years. Consequence: Minor financial impact; Low industrial land use in M; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Low as drivers are present (land use) as identified by local experts & land use maps (Qld Globe) and data supports this.

LM346



environmental value

Elevated levels of

suspended matter.



Wave wash




Maranoa Surface Water Rare Minor Low Medium

Likelihood: Assuming continued moves towards best practice grazing land management. Possible Future mining development; Dryland cropping not anticipated to expand over 10 years. Consequence: Minor financial impact; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) although no local guideline value to assess data against.

LM347




Elevated levels of

suspended matter.



Wave wash





Likelihood: Assuming continued moves towards best practice grazing land management. Possible Future mining development. Can anyone provide specifics? Dryland cropping not anticipated to expand over 10 years. Consequence: Minor financial impact; Visually displeasing; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM348


environmental value

Elevated pathogen

counts




aren't available.

Maranoa Surface Water Rare Moderate Low High

Likelihood: Lack of drivers: Lack of development of existing uses or new uses.Consequence: Significant financial loss and human health risk; Aquatic biota can develop physiological defects; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no known guideline value and no data to support.




LM349



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Lack of development of existing uses or new uses; Not currently sampling for E. coli or any pathogens in stream. Consequence: Moderate impact on ecosystem; Aquatic biota can develop physiological defects; Mass fatalities; Sensitive species most susceptible (sensitive life history or certain sensitive developmental stages). Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM350



Elevated pathogen

counts




aren't available.

Maranoa Surface Water Rare Minor Low High

Likelihood: Lack of drivers: Lack of development of existing uses or new uses; Not currently sampling for E. coli or any pathogens instream.Consequence: Minor impact to community resource as raw water will go for treatment prior to consumption; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no local guideline value and no data to support.

LM351


environmental value

Elevated pathogen

counts




aren't available.

Maranoa Surface Water Rare Insignificant Low High

Likelihood: Expert local knowledge identified an exceedance of pathogen Aquaculture and Human Consumers of Aquatic Foods guideline as rare; Drivers not present: Lack of development of existing uses or new uses; Not currently sampling for E. coli or any pathogens instream.Consequence: Minimal or no financial losses.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM352



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Lack of development of existing uses or new uses; Not currently sampling for E. coli or any pathogens instream.Consequence: Significant financial loss; Viruses caused by pathogens can cause miscarriage, neurological disorders & death in cattle & swine. Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM353




Elevated pathogen

counts




aren't available.


Likelihood: Lack of development of existing uses or new uses; Not currently sampling for E. coli or any pathogens instream.Consequence: Moderate disturbance to recreation values and amenity; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM354


environmental value




Eutrophication



Maranoa Surface Water Rare Major Low Low

Likelihood: Changes not likely due to lack of development of existing uses or new uses. Consequence: Major financial impact; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data; Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM355



environmental value




Eutrophication




Likelihood: Changes not likely due to lack of development of existing uses or new uses. Consequence: Major impact on aquatic ecosystem; Consequence is localised and short lived; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.).Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM356






Eutrophication




Likelihood: Local experts & data analysis supports the conclusion that it is unlikely that pH would be outside natural ranges to an extent that this water would be unsuitable for use; Changes not likely due to lack of development of existing uses or new uses. Consequence: Minor impact to community resource as pH is easily & inexpensively corrected in the water treatment process; Human health impacts; Corrosion of pipes. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.




LM357


environmental value




Eutrophication




Likelihood: Changes not likely due to lack of development of existing uses or new uses. Consequence: Moderate financial impact; Corrosion of pipes. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM358



environmental value




Eutrophication




Likelihood: Changes not likely due to lack of development of existing uses or new uses. Consequence: Major financial loss; Corrosion of pipes; Health impacts to animals; Risks to crop health.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM359







Eutrophication




Likelihood: Changes not likely due to lack of development of existing uses or new uses. Consequence: Minor impact on recreation; Irritation to eyes, skin and mucous membranes; Gastrointestinal irritation; Irreversible damage to eyes.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

WM360


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Changes not likely due to lack of development of existing uses or new uses. Consequence: Moderate financial impact; Thermal tolerance of species is known; Limits recruitment of species.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM361



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Changes not likely due to lack of development of existing uses or new uses. Consequence: Moderate impact on aquatic ecosystem; Know temperature will impact but not the extent of this impact; Thermal tolerance of these species monitoring required; Limits recruitment of species; High temperature reduces dissolved oxygen; effects reproduction and respiration rate; increases susceptibility to disease; alters food availability.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM362




natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Changes not likely due to lack of development of existing uses or new uses. Consequence: Insignificant impacts on community resource as temperature impacts on water quality (e.g. elevated temperature promoting cyanobacteria colonies) will be treated prior to consumption.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM363


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Changes not likely due to lack of development of existing uses or new uses. Consequence: Minimal or no financial impacts.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.




WM364



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Changes not likely due to lack of development of existing uses or new uses. Consequence: Minor impact on irrigation water; Cold water can stress crops.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM365





natural range




Reduced flow.



Maranoa Surface Water Rare Insignificant Low Low

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Development not expected - comments as per sediment; Changes not likely due to lack of development of existing uses or new uses. Consequence: Minimal or no impact on community resource.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM366


environmental value

Dissolved oxygen




Eutrophication



North-Western Surface Water Unlikely Moderate Low Medium

Likelihood: Statistical analysis shows exceedance of Aquaculture guideline as unlikely; Lack of drivers. Consequence: Moderate individual financial loss; Oxygen availability critical to species development and reproduction.Uncertainty: Medium as ANZG dissolved oxygen guideline for Aquatic ecosystem was used in lieu of an Aquaculture guideline - This guideline may be conservative. Drivers not present as identified by local experts and land use maps (Queensland Globe) and statistical analysis supports local knowledge (N=94).

WM367



environmental value

Dissolved oxygen




Eutrophication



North-Western Surface Water Unlikely Moderate Low Low

Likelihood: Statistical analysis shows exceedance of Aquatic guideline as unlikely; Lack of drivers.Consequence: Moderate impact on aquatic ecosystem - Risk of eutrophication increased, oxygen availability critical to species diversity and habitat. Potential for blackwater event.Uncertainty: Local knowledge informs lack of drivers and statistical analysis supports local knowledge (N=94).

WM368



Dissolved oxygen




Eutrophication




Likelihood: Lack of drivers. Consequence: Moderate impact on community resource; Low dissolved oxygen can encourage transformation of compounds to others that may pose a health risk or be difficult to treat (WHO 2004, p215); Eutrophication risk increased when dissolved oxygen is less than 80% saturation (NHMRC 2008) - poor taste associated.Uncertainty: Identification of drivers by local experts and land use maps (Queensland Globe) and although no guideline to assess data against.

WM369


environmental value

Dissolved oxygen




Eutrophication



North-Western Surface Water Rare Insignificant Low Medium

Likelihood: Lack of drivers; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values being exceeded.Consequence: Minimal individual financial loss. Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers not present as identified by local experts and land use maps (Queensland Globe) and statistical analysis supports local knowledge (N=94).

WM370



environmental value

Dissolved oxygen




Eutrophication



North-Western Surface Water Rare Moderate Low Medium

Likelihood: Lack of drivers; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values being exceeded.Consequence: Moderate individual financial loss; Low dissolved oxygen in irrigation water can be detrimental to plant health; Elevated dissolved oxygen can promote eutrophication which can be detrimental to stock health.Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers not present as identified by local experts and land use maps (Queensland Globe) and statistical analysis supports local knowledge (N=94).




WM371




Dissolved oxygen




Eutrophication



North-Western Surface Water Unlikely Minor Low Medium

Likelihood: Statistical analysis shows exceedance of NHMRC Primary Recreation guideline as unlikely; Lack of drivers.Consequence: Minor impact on recreation values and amenity; Indirect outcome of elevated/reduced dissolved oxygen: Risk of eutrophication increased, Potential for blackwater event- These events would reduce the visual amenity and pose a potential health risk, restricting access to these waters for the duration of the event.Uncertainty: Drivers not present as identified by local experts and land use maps (Queensland Globe) and statistical analysis supports local knowledge (N=94); Risks to secondary and visual recreation assessed by the impact of indirect outcomes as no guideline exists.

LM372


environmental value

Elevated levels of

cyanobacteria.







Likelihood: Limited expansion of agriculture; Drivers present: nutrient transport related to erosion caused by infrastructure development, CSG, sheep and cattle grazing in mid catchments, state forest in upper catchments, irrigated cropping on Charley's Creek floodplain north and south of Chinchilla.Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills; Stimulation of algal growth.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM373



Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Unlikely; No recent blooms in Chinchilla town weir - not used for town supply as there is an alternate supply; Based on low risk of nutrients, cyanobacteria not expected to become more common. Consequence: Moderate impact on community resource; harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- Blooms are relatively easy to treat in raw water, once the species of bloom is known.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM374


environmental value

Elevated levels of

cyanobacteria.







Likelihood: Drivers: Nutrient loading present, although expert knowledge didn't identify any drivers; No recent blooms in Chinchilla town weir - not used for town supply as there is an alternate supply; Based on low risk of nutrients, cyanobacteria not expected to become more common. Consequence: Minimal individual financial loss.Uncertainty: Medium as drivers were not identified as being present- no data to validate this.

LM375



environmental value

Elevated levels of

cyanobacteria.







Likelihood: Drivers: Nutrient loading present, although expert knowledge didn't identify any drivers; No recent blooms in Chinchilla town weir - not used for town supply as there is an alternate supply. Based on low risk of nutrients, cyanobacteria not expected to become more common. Consequence: Significant individual financial impact- harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- documented cases of livestock fatalities following exposure - Not an issue for irrigation waters.Uncertainty: Medium as drivers were not identified as being present- no data to validate this.

LM376




Elevated levels of

cyanobacteria.







Likelihood: Linked to nutrients and temperature; Drivers: Nutrient loading present, although expert knowledge didn't identify any drivers- No recent blooms in Chinchilla town weir - not used for town supply as there is an alternate supply. Based on low risk of nutrients, cyanobacteria not expected to become more common. Consequence: Moderate impact on community resource, recreation values and amenity- Harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008).Uncertainty: Medium as drivers were not identified as being present but data sample size is reliable (N=221).




LM377


environmental value








Likelihood: Limited expansion of agriculture; Drivers present: nutrient transport related to erosion caused by infrastructure development, CSG, sheep and cattle grazing in mid catchments, state forest in upper catchments, irrigated cropping on Charley's Creek floodplain north and south of Chinchilla.Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills; Stimulation of algal growth.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM378



environmental value








Likelihood: Statistical analysis shows exceedance of Basin Plan B1 Target application zone guideline for Total Phosphorous is unlikely and rare for Total Nitrogen; Limited expansion of agriculture; Drivers present: nutrient transport related to erosion caused by infrastructure development, CSG, sheep and cattle grazing in mid catchments, state forest in upper catchments, irrigated cropping on Charley's Creek floodplain north and south of Chinchilla.Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations; Aquatic biota susceptible, mass fatalities may occur.Uncertainty: Low as although drivers present as identified by local experts & land use maps (Qld Globe), the system is heavily modified as supported by the data (TN: N=171 & TP: N=382).

LM379










Likelihood: Limited expansion of agriculture, plus some nutrient transport related to erosion caused by infrastructure development, CSG.Consequence: Moderate impact to community resource as although raw water will go for treatment prior to consumption, some nutrients can reduce the effectiveness of disinfection; Human health risk; Stimulation of algal growth; Of particular issue for consumers of bore/ground water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM380


environmental value







North-Western Surface Water Rare Minor Low Low

Likelihood: Expert knowledge considered exceedance of industry use guideline as rare; Drivers present however industry water use can tolerate concentrations of nutrients that would pose risk for other uses of water: Limited expansion of agriculture, plus some nutrient transport related to erosion caused by infrastructure development, CSG.Consequence: Minor financial losses; Lower as industry isn't a major land use- localised effects only.Uncertainty: Low as although drivers present as identified by local experts & land use maps (Qld Globe), the system is heavily modified as supported by the data (TN: N=171 & TP: N=382).

LM381



environmental value







North-Western Surface Water Rare Moderate Low Low

Likelihood: Statistical analysis shows exceedance of ANZG Irrigation guideline for Total Phosphorous and Total Nitrogen as rare; Limited expansion of agriculture, plus some nutrient transport related to erosion caused by infrastructure development, CSG.Consequence: Significant financial loss; Stimulation of algal growth in stock water; Poisoning, which can result in loss of productivity or death; Irrigation water containing nutrients is beneficial for plants; Stimulation of algal growth; Higher due to large prop of grazing with some irrigation; Stimulation of algal growth; Poisoning, which can result in loss of productivity or death.Uncertainty: Low as although drivers present as identified by local experts & land use maps (Qld Globe), the system is heavily modified as supported by the data (TN: N=171 & TP: N=382).

LM382


environmental value

Elevated levels of


contaminants







Likelihood: Limited expansion of agriculture; Drivers present: sediment transport related to erosion caused by infrastructure development, CSG, sheep and cattle grazing in mid catchments, state forest in upper catchments, irrigated cropping on Charley's Creek floodplain north and south of Chinchilla.Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.




LM383



environmental value

Elevated levels of


contaminants







Likelihood: Limited expansion of agriculture; Drivers present: sediment transport related to erosion caused by infrastructure development, CSG, sheep and cattle grazing in mid catchments, state forest in upper catchments, irrigated cropping on Charley's Creek floodplain north and south of Chinchilla; Pesticides/herbicides currently below drinking water levels based on D. Waters monitoring at Chinchilla Weir.. Potential Hotspot: Condamine River near Chinchilla; Methane seeps from aquifers into the river- localised impacts only- unsure if attributed to CSG or a natural occurrence.Consequence: Moderate impacts on aquatic ecosystem; Water quality will be most impacted by methane during periods of low flow or when aeration is lowest.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM384



Elevated levels of


contaminants






North-Western Surface Water Rare Major Low Medium

Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Lack of drivers in headwaters; Increased agriculture; Traditionally no one sprayed for weeds and pests, now companies adhere to pest management plans; Pesticides/herbicides currently below drinking water levels (DNRM monitoring at Chinchilla Weir).Consequence: Major impact to community resource as pesticides and other contaminants are not easily detected and are expensive to treat; Human health impacts; Cumulative impacts are unknown; System susceptible to impacts - presumed based on, traditionally not having the exposure.Uncertainty: Medium as no drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM385


environmental value

Elevated levels of


contaminants







Likelihood: Headwaters well vegetated (State Forest)- Lower part of catchment more likely to exceed than upper; Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: grazing & dryland production and minor irrigated production throughout assessment area (excluding state forest); Note: CSG in lower part of catchment- reverse osmosis water discharged to environment for beneficial use.Consequence: Minor financial impact; Small proportion of industrial land use in risk assessment area; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) show drivers present but no data to support.

LM386



environmental value

Elevated levels of


contaminants







Likelihood: Limited expansion of agriculture; Drivers present: sediment transport related to erosion caused by infrastructure development, CSG, sheep and cattle grazing in mid catchments, state forest in upper catchments, irrigated cropping on Charley's Creek floodplain north and south of Chinchilla; No data.Consequence: Moderate financial impacts; Animal health risk; Human health risk.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM387




Elevated levels of


contaminants







Likelihood: Limited expansion of agriculture; Drivers present: sediment transport related to erosion caused by infrastructure development, CSG, sheep and cattle grazing in mid catchments, state forest in upper catchments, irrigated cropping on Charley's Creek floodplain north and south of Chinchilla; No data.Consequence: Moderate impact on recreation; Human health issue.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.




LM388


environmental value







Likelihood: Statistical analysis of water quality data shows exceedance of ANZG freshwater Aquaculture guideline as rare; Headwaters well vegetated (State Forest)- Lower part of catchment more likely to exceed than upper; Drivers present: grazing & dryland production and minor irrigated production throughout assessment area (excluding state forest); Note: CSG in lower part of catchment- reverse osmosis water discharged to environment for beneficial use.Consequence: Moderate financial impact; Aquaculture not a major land use; Productivity influenced (growth stunted by expending energy elsewhere); Fatalities in extreme conditions [ANZG 2000].Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data (N=570); Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM389









Likelihood: Local experts & data analysis supports the conclusion that it is unlikely salinity concentrations would be elevated to an extent that this water would be unsuitable for use; Headwaters well vegetated (State Forest)- Lower part of catchment more likely to exceed than upper; Drivers present: grazing & dryland production and minor irrigated production throughout assessment area (excluding state forest); Note: CSG in lower part of catchment- reverse osmosis water discharged to environment for beneficial use.Consequence: Moderate impact on community resource as saline water is difficult to treat; Aesthetic quality impacted (taste); Health impacts in extreme cases.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to compare data against.

LM390


environmental value






North-Western Surface Water Unlikely Minor Low Low

Likelihood: Headwaters well vegetated (State Forest)- Lower part of catchment more likely to exceed than upper; Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: grazing & dryland production and minor irrigated production throughout assessment area (excluding state forest); Note: CSG in lower part of catchment- reverse osmosis water discharged to environment for beneficial use.Consequence: Minor financial impact; Small proportion of industrial land use in risk assessment area; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM391



environmental value







Likelihood: Headwaters well vegetated (State Forest)- Lower part of catchment more likely to exceed than upper; Drivers present: grazing & dryland production and minor irrigated production throughout assessment area (excluding state forest); Note: CSG in lower part of catchment- reverse osmosis water discharged to environment for beneficial use.Consequence: Reduced plant productivity; Crop failure; Reduced livestock productivity; Salt poisoning resulting in death.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.




LM392










Likelihood: Headwaters well vegetated (State Forest)- Lower part of catchment more likely to exceed than upper; Drivers present: grazing & dryland production and minor irrigated production throughout assessment area (excluding state forest); Note: CSG in lower part of catchment- reverse osmosis water discharged to environment for beneficial use.Consequence: Primary - exposure to unsanitary water under extreme circumstance (i.e. decaying aquatic life); Secondary - Impacts of decaying aquatic life (eutrophication, exposure to pathogen etc.); Aesthetic - Salt crusts; dead aquatic life and resultant impacts (poor smell, upsetting etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM393


environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Infrastructure development for CSG driving increase however not as extensive as South West Catchments; High risk of degrading due to high ecological values and due to the scale of proposed mining, CSG wells and hydrological modification occurring and proposed for the area. Consequence: Low prevalence of aquaculture in catchment; Reduced light penetration; Physiological damage; Smothering.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) and this is supported by the data.

LM394



Elevated levels of

suspended matter.



Wave wash





Likelihood: Exceedance considered to be unlikely; Infrastructure development for CSG driving increase however not as extensive as South West Catchments; High risk of degrading due to high ecological values and due to the scale of proposed mining, CSG wells and hydrological modification occurring and proposed for the area. Consequence: Minor impact to community resource as suspended solids are relatively easy and inexpensive to remove from raw water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM395


environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Infrastructure development for CSG driving increase however not as extensive as South West Catchments; High risk of degrading due to high ecological values and due to the scale of proposed mining, CSG wells and hydrological modification occurring and proposed for the area. Consequence: Moderate financial impact; Unable to operate business resulting in loss of business, reduced employment capacity; Mining/CSG impacted in NW. Uncertainty: Low as drivers are present (land use) as identified by local experts & land use maps (Qld Globe) and data supports this.

LM396



environmental value

Elevated levels of

suspended matter.



Wave wash




North-Western Surface Water Rare Minor Low Medium

Likelihood: Infrastructure development for CSG driving increase however not as extensive as South West Catchments; High risk of degrading due to high ecological values and due to the scale of proposed mining, CSG wells and hydrological modification occurring and proposed for the area; Influenced by grazing (all over catchment) & irrigation (localised areas). Consequence: Minor financial impact; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) although no local guideline value to assess data against.




LM397




Elevated levels of

suspended matter.



Wave wash





Likelihood: Infrastructure development for CSG driving increase however not as extensive as South West Catchments; High risk of degrading due to high ecological values and due to the scale of proposed mining, CSG wells and hydrological modification occurring and proposed for the area. Consequence: Minor financial impact; Visually displeasing; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM398


environmental value

Elevated pathogen

counts




aren't available.

North-Western Surface Water Rare Moderate Low High

Likelihood: Expert local knowledge identified an exceedance of pathogen Aquaculture and Human Consumers of Aquatic Foods guideline as rare; Lack of drivers: no biosolids, no known effects of E. coli, low population, low use of the water. Consequence: Significant financial loss and human health risk; Aquatic biota can develop physiological defects; Human health impacted by viruses caused by pathogen.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no known guideline value and no data to support.

LM399



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Expert local knowledge identified an exceedance of pathogen Aquatic guideline as rare; Lack of drivers: no biosolids, no known effects of E. coli, low population, low use of the water; Not currently sampling for E. coli or any pathogens in stream. Consequence: Moderate impact on ecosystem; Aquatic biota can develop physiological defects; Mass fatalities; Sensitive species most susceptible (sensitive life history or certain sensitive developmental stages).Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) & no data to support.

LM400



Elevated pathogen

counts




aren't available.

North-Western Surface Water Rare Minor Low High

Likelihood: Lack of drivers: no biosolids, no known effects of E. coli, low population, low use of the water; Not currently sampling for E. coli or any pathogens instream. Consequence: Minor impact to community resource as raw water will go for treatment prior to consumption; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no local guideline value and no data to support.

LM401


environmental value

Elevated pathogen

counts




aren't available.

North-Western Surface Water Rare Insignificant Low High

Likelihood: Expert local knowledge identified an exceedance of pathogen guidelines as rare; Limited data: Lack of drivers: no biosolids, no known effects of E. coli, low population, low use of the water; Not currently sampling for E. coli or any pathogens instream. Consequence: Minimal or no financial losses.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM402



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Lack of drivers: no biosolids, no known effects of E. coli, low population, low use of the water; Not currently sampling for E. coli or any pathogens instream. Consequence: Significant financial loss; Viruses caused by pathogens can cause miscarriage, neurological disorders & death in cattle & swine. Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM403




Elevated pathogen

counts




aren't available.


Likelihood: Lack of drivers: no biosolids, no known effects of E. coli, low population, low use of the water; Not currently sampling for E. coli or any pathogens instream. Consequence: Moderate disturbance to recreation values and amenity; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.




LM404


environmental value




Eutrophication



North-Western Surface Water Rare Major Low Low

Likelihood: Limited data, lack of drivers, small risk of CSG discharge.Consequence: Major financial impact; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data; Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM405



environmental value




Eutrophication




Likelihood: Limited data, lack of drivers, small risk of CSG discharge.Consequence: Major impact on aquatic ecosystem; Consequence is localised and short lived; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.).Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM406






Eutrophication




Likelihood: Local experts & data analysis supports the conclusion that it is unlikely that pH would be outside natural ranges to an extent that this water would be unsuitable for use. Consequence: Minor impact to community resource as pH is easily & inexpensively corrected in the water treatment process; Human health impacts; Corrosion of pipes. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM407


environmental value




Eutrophication




Likelihood: Limited data, lack of drivers, small risk of CSG discharge.Consequence: Moderate financial impact; Corrosion of pipes. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM408



environmental value


Exposure of Potential Acid Sulphate Soils to air

Acidification of soils from agricultural practices

Eutrophication



North-Western Surface Water Rare Major Low Low

Likelihood: Limited data, lack of drivers, small risk of CSG discharge.Consequence: Corrosion of pipes.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM409







Eutrophication




Likelihood: Limited data, lack of drivers, small risk of CSG discharge.Consequence: Minor impact on recreation; Irritation to eyes, skin and mucous membranes; Gastrointestinal irritation; Irreversible damage to eyes.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

WM410


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Limited data, lack of drivers, small risk of coal seam gas discharge.Consequence: Moderate financial impact; Thermal tolerance of species is known; Limits recruitment of species.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM411



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Limited data, lack of drivers, small risk of coal seam gas discharge.Consequence: Moderate impact on aquatic ecosystem; Know temperature will impact but not the extent of this impact; Thermal tolerance of these species monitoring required; Limits recruitment of species; High temperature reduces dissolved oxygen; effects reproduction and respiration rate; increases susceptibility to disease; alters food availability.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.




WM412




natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Limited data, lack of drivers, small risk of coal seam gas discharge. Consequence: Insignificant impacts on community resource as temperature impacts on water quality (e.g. elevated temperature promoting cyanobacteria colonies) will be treated prior to consumption.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM413


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Limited data, lack of drivers, small risk of coal seam gas discharge.Consequence: Minimal or no financial impacts. Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM414



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Limited data, lack of drivers, small risk of coal seam gas discharge.Consequence: Minor impact on irrigation water; Cold water can stress crops.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM415





natural range




Reduced flow.



North-Western Surface Water Rare Insignificant Low Low

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Development not expected - comments as per sediment; Limited data, lack of drivers, small risk of coal seam gas dischargeConsequence: Minimal or no impact on community resource.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

LM416



environmental value

Elevated levels of

cyanobacteria.




aren't available.

South Eastern Surface Water Unlikely Moderate Low Low

Likelihood: Statistical analysis shows ANZG Aquatic Ecosystems guideline likely to be exceeded- data exceeded guideline value more than 65-84% of sample occasions; Drivers: Intensive cropping, urban expansion, intensive animal industries.Consequence: Moderate impact on aquatic ecosystem- Harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008).Uncertainty: High as drivers were not identified (system is too shallow, cold & nutrient loading not sufficient) as being present and unreliable data sample size (N=10); Exceedance of guideline is based on using chlorophyll-a as a surrogate for cyanobacteria (Microcystins).

WM417


environmental value

Dissolved oxygen




Eutrophication



South Eastern Surface Water Unlikely Moderate Low Medium

Likelihood: Statistical analysis shows exceedance of Aquaculture guideline as rare; Temperature change is the only widespread threat - other drivers will be localised; Naturally well oxygenated streams, all the taxa are highly reliant on high dissolved oxygen (expert opinion). Assumes other possible sources of organic loading (piggeries etc.) are regulated. Consequence: Moderate individual financial loss; Oxygen availability critical to species development and reproduction.Uncertainty: ANZG dissolved oxygen guideline for Aquatic ecosystem was used in lieu of an Aquaculture guideline - This guideline may be conservative. Drivers present as identified by local experts and land use maps (Queensland Globe) and statistical analysis supports local knowledge (N=138).




WM418



environmental value

Dissolved oxygen




Eutrophication



South Eastern Surface Water Rare Moderate Low Low

Likelihood: Statistical analysis shows exceedance of Aquatic guideline as rare; Temperature change is the only widespread threat - other drivers will be localised; Naturally well oxygenated streams, all the taxa are highly reliant on high dissolved oxygen (expert opinion). Assumes other possible sources of organic loading (piggeries etc.) are regulated. Consequence: Moderate impact on aquatic ecosystem- Risk of eutrophication increased, oxygen availability critical to species diversity and habitat. Potential for blackwater event.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) support the data (N=138).

WM419



Dissolved oxygen




Eutrophication



South Eastern Surface Water Rare Moderate Low Medium

Likelihood: Temperature change is the only widespread threat - other drivers will be localised; Naturally well oxygenated streams, all the taxa are highly reliant on high dissolved oxygen (expert opinion). Assumes other possible sources of organic loading (piggeries etc.) are regulated. Consequence: Moderate impact on community resource; Low dissolved oxygen can encourage transformation of compounds to others that may pose a health risk or be difficult to treat (WHO 2004, p215); Eutrophication risk increased when dissolved oxygen is less than 80% saturation (NHMRC 2008) - poor taste associated.Uncertainty: Identification of drivers by local experts and land use maps (Queensland Globe) and although no guideline to assess data against.

WM420


environmental value

Dissolved oxygen




Eutrophication



South Eastern Surface Water Rare Insignificant Low Medium

Likelihood: Temperature change is the only widespread threat- other drivers will be localised; Naturally well oxygenated streams (expert opinion); Assumes other possible sources of organic loading (piggeries etc.) are regulated; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values being exceeded.Consequence: Minimal individual financial loss. Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present as identified by local experts and land use maps (Queensland Globe) and statistical analysis supports local knowledge (N=138).

WM421



environmental value

Dissolved oxygen




Eutrophication




Likelihood: Temperature change is the only widespread threat- other drivers will be localised; Naturally well oxygenated streams (expert opinion); Assumes other possible sources of organic loading (piggeries etc.) are regulated; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values being exceeded.Consequence: Moderate individual financial loss; Low dissolved oxygen in irrigation water can be detrimental to plant health; Elevated dissolved oxygen can promote eutrophication which can be detrimental to stock health.Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present as identified by local experts and land use maps (Queensland Globe) and statistical analysis supports local knowledge (N=138).

WM422




Dissolved oxygen




Eutrophication



South Eastern Surface Water Unlikely Minor Low Medium

Likelihood: Expert local knowledge identified exceedance of NHMRC Primary Recreation guideline as unlikely; Temperature change is the only widespread threat- other drivers will be localised; Naturally well oxygenated streams, all the taxa are highly reliant on high dissolved oxygen (expert opinion). Assumes other possible sources of organic loading (piggeries etc.) are regulated. Consequence: Minor impact on recreation values and amenity; Indirect outcome of elevated/reduced dissolved oxygen: Risk of eutrophication increased, Potential for blackwater event- These events would reduce the visual amenity and pose a potential health risk, restricting access to these waters for the duration of the event.Uncertainty: Drivers present as identified by local experts and land use maps (Qld Globe)- no data to validate this; Risks to secondary and visual recreation assessed by the impact of indirect outcomes as no guideline exists.

LM423


environmental value

Elevated levels of

cyanobacteria.







Likelihood: Land use potentially contributing nutrients to waterways (runoff, leaching to GW); Drivers present: Intensive cropping, urban, intensive animal industries.Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills; Stimulation of algal growth.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.




LM424



Elevated levels of

cyanobacteria.







Likelihood: Rear; Too shallow, too cold, minimal nutrient loading. Consequence: Moderate impact on community resource; human health consequence as Sandy creek is used for drinking water; harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- Blooms are relatively easy to treat in raw water, once the species of bloom is known.Uncertainty: Medium as although drivers aren't present as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM425


environmental value

Elevated levels of

cyanobacteria.






South Eastern Surface Water Rare Minor Low Medium

Likelihood: Drivers: Intensive cropping, urban expansion, intensive animal industries; Expert local knowledge identified the system as too shallow, too cold, minimal nutrient loading, human health consequence as use of stream for drinking water. Not sure how many people use stream for water supply.Consequence: Minimal individual financial loss.Uncertainty: Medium as although drivers are present as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM426



environmental value

Elevated levels of

cyanobacteria.







Likelihood: Drivers: Intensive cropping, urban expansion, intensive animal industries; Expert local knowledge identified the system as too shallow, too cold, minimal nutrient loading, human health consequence as use of stream for drinking water. Not sure how many people use stream for water supply.Consequence: Significant individual financial impact- harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- documented cases of livestock fatalities following exposure - Not an issue for irrigation waters.Uncertainty: Medium as although drivers are present as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM427




Elevated levels of

cyanobacteria.







Likelihood: Linked to nutrients and temperature; Drivers: Nutrients present, however expert opinion described this system as being too shallow, cold & nutrient loading not sufficient.Consequence: Moderate impact on community resource, recreation values and amenity- Harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008).Uncertainty: High as drivers were not identified (system is too shallow, cold & nutrient loading not sufficient) as being present and unreliable data sample size (N=10).

LM428


environmental value








Likelihood: Land use potentially contributing nutrients to waterways (runoff, leaching to GW); Drivers present: Intensive cropping, urban, intensive animal industries.Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills; Stimulation of algal growth.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM429



environmental value







South Eastern Surface Water Rare Major Low Low

Likelihood: Statistical analysis shows exceedance of Basin Plan B1 Target application zone guideline for Total Phosphorous & Total Nitrogen is rare; Land use potentially contributing nutrients to waterways (runoff, leaching to GW); Drivers present: Intensive cropping, urban, intensive animal industries.Consequence: Major spatial & temporal impact on aquatic ecosystems; Ecosystems is known to be sensitive but not how sensitive; Increases risk of eutrophication & associated DO fluctuations; Aquatic biota susceptible, mass fatalities may occur Adding nutrients to headwater systems is likely to alter the basis of the aquatic food web (CM). Uncertainty: Low as although drivers present as identified by local experts & land use maps (Qld Globe), the system is heavily modified as supported by the data (TN: N=103 & TP: N=110).




LM430










Likelihood: Land use potentially contributing nutrients to waterways (runoff, leaching to GW); Drivers present: Intensive cropping, urban, intensive animal industries.Consequence: Moderate impact to community resource as although raw water will go for treatment prior to consumption, some nutrients can reduce the effectiveness of disinfection; Human health risk; Stimulation of algal growth; Of particular issue for consumers of bore/ground water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM431


environmental value







South Eastern Surface Water Rare Minor Low Low

Likelihood: Expert knowledge considered exceedance of industry use guideline as rare; Drivers present however industry water use can tolerate concentrations of nutrients that would pose risk for other uses of water: Land use potentially contributing nutrients to waterways (runoff, leaching to GW), Intensive cropping, urban, intensive animal industries.Consequence: Minor financial losses; Lower as industry isn't a major land use- localised effects only.Uncertainty: Low as although drivers present as identified by local experts & land use maps (Qld Globe), the system is heavily modified as supported by the data (TN: N=103 & TP: N=110).

LM432



environmental value








Likelihood: Statistical analysis shows exceedance of ANZG Irrigation guideline for Total Phosphorous and Total Nitrogen as rare; Land use potentially contributing nutrients to waterways (runoff, leaching to GW).Consequence: Significant financial loss; Stimulation of algal growth in stock water; Poisoning, which can result in loss of productivity or death; Irrigation water containing nutrients is beneficial for plants; Stimulation of algal growth; Higher consequence due to proportion of agricultural land uses that would be exposed.Uncertainty: Low as although drivers present as identified by local experts & land use maps (Qld Globe), the system is heavily modified as supported by the data (TN: N=103 & TP: N=110).

LM433










South Eastern Surface Water Possible Minor Low Low

Likelihood: Statistical analysis shows NHMRC Recreation guideline for Total Phosphorous as possibly exceeded; Land use potentially contributing nutrients to waterways (runoff, leaching to GW); Drivers present: Intensive cropping, urban, intensive animal industries.Consequence: Minor impact on community resource, recreation values and amenity; Increases risk of eutrophication & related aesthetic impacts (smells); Fish kills.Uncertainty: Low as drivers present as identified by local experts & land use maps (Qld Globe), the system is heavily modified as supported by the data (TN: N=103 & TP: N=110).

LM434


environmental value

Elevated levels of


contaminants







Likelihood: Point source may be decreasing in southern part of the catchment. Point source is Increasing in northern part, new chookeries, horticulture expanding.Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM435



environmental value

Elevated levels of


contaminants







Likelihood: Point source may be decreasing in southern part of the catchment. Point source is Increasing in northern part, new chookeries, horticulture expanding.Consequence: Moderate impacts on aquatic ecosystem.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.




LM436



Elevated levels of


contaminants






South Eastern Surface Water Rare Major Low Medium

Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Higher rainfall zone; Cropping is the pressure (runoff, leaching to GW); Effluent ponds and in several north-draining streams and wetlands just north of the Granite Belt, in the uppermost reaches of the Condamine River catchment; Point source may be decreasing in southern part of the catchment. Point source is Increasing in northern part, new chookeries, horticulture expanding.Consequence: Major impact to community resource as pesticides and other contaminants are not easily detected and are expensive to treat; Human health impacts.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM437


environmental value

Elevated levels of


contaminants







Likelihood: Headwaters well vegetated (national park)- Lower part of catchment more likely to exceed than upper; Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: : grazing & dryland production and minor irrigated production throughout assessment area; Low proportion of irrigated land use; Point source may be decreasing in southern part of the catchment. Point source is Increasing in northern part, new chookeries, horticulture expanding.Consequence: Minor financial impact; Small proportion of industrial land use in risk assessment area; Dryland salinity risk due to prevalence of dryland production; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) show drivers present but no data to support.

LM438



environmental value

Elevated levels of


contaminants







Likelihood: Point source may be decreasing in southern part of the catchment. Point source is Increasing in northern part, new chookeries, horticulture expanding.Consequence: Moderate financial impacts; Animal health risk; Human health risk.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM439




Elevated levels of


contaminants







Likelihood: Point source may be decreasing in southern part of the catchment. Point source is Increasing in northern part, new chookeries, horticulture expanding.Consequence: Moderate impact on recreation; Human health issue.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM440


environmental value







Likelihood: Statistical analysis of water quality data shows exceedance of ANZG freshwater Aquaculture guideline as rare; Headwaters well vegetated (national park)- Lower part of catchment more likely to exceed than upper; Drivers present: grazing & dryland production and minor irrigated production throughout assessment area; Low proportion of irrigated land use; Risk of grazing to mobilise sediments containing ions; Dryland salinity risk due to prevalence of dryland production.Consequence: Moderate financial impact; Aquaculture not a major land use in SE; Productivity influenced (growth stunted by expending energy elsewhere); Fatalities in extreme conditions [ANZG 2000].Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data (N=481); Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.




LM441









Likelihood: Local experts & data analysis supports the conclusion that it is unlikely salinity concentrations would be elevated to an extent that this water would be unsuitable for use; Headwaters well vegetated (national park)- Lower part of catchment more likely to exceed than upper; Drivers present: grazing & dryland production and minor irrigated production throughout assessment area; Low proportion of irrigated land use; Risk of grazing to mobilise sediments containing ions; Dryland salinity risk due to prevalence of dryland production.Consequence: Moderate impact on community resource as saline water is difficult to treat; Aesthetic quality impacted (taste); Health impacts in extreme cases.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to compare data against.

LM442


environmental value






South Eastern Surface Water Unlikely Minor Low Low

Likelihood: Headwaters well vegetated (national park)- Lower part of catchment more likely to exceed than upper; Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: : grazing & dryland production and minor irrigated production throughout assessment area; Low proportion of irrigated land use; Risk of grazing to mobilise sediments containing ions. Consequence: Minor financial impact; Small proportion of industrial land use in risk assessment area; Dryland salinity risk due to prevalence of dryland production; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM443



environmental value







Likelihood: Headwaters well vegetated (national park)- Lower part of catchment more likely to exceed than upper; Drivers present: grazing & dryland production and minor irrigated production throughout assessment area; Low proportion of irrigated land use; Risk of grazing to mobilise sediments containing ions. Consequence: Risk to grazed areas; Dryland salinity risk due to prevalence of dryland production; Reduced plant productivity; Crop failure; Reduced livestock productivity; Salt poisoning resulting in death; Quality required to sell produced not met.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM444










Likelihood: Headwaters well vegetated (national park)- Lower part of catchment more likely to exceed than upper; Drivers present: grazing & dryland production and minor irrigated production throughout assessment area; Low proportion of irrigated land use; Risk of grazing to mobilise sediments containing ions. Consequence: Dryland salinity risk due to prevalence of dryland production; Primary - exposure to unsanitary water under extreme circumstance (i.e. decaying aquatic life). Secondary - Impacts of decaying aquatic life (eutrophication, exposure to pathogens etc.); Aesthetic - Salt crusts; dead aquatic life and resultant impacts (poor smell, upsetting etc.).Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.




LM445


environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Cultivation decreasing, cover increasing; extreme events have caused streambank instability; high stream power and full transport typically (outside of extreme events); no significant land use change expected.Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Reduced light penetration; Physiological damage; Smothering; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) and this is supported by the data.

LM446



environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Statistical analysis shows exceedance of ANZG Aquatic ecosystem guideline is rare- data exceeded guideline value between <15% of sample occasions; Cultivation decreasing, cover increasing; extreme events have caused streambank instability; high stream power and full transport typically (outside of extreme events); no significant land use change expected.Consequence: Moderate impacts on aquatic ecosystem; Reduced light penetration; Northern River Blackfish, spiny cray, mountain galaxis, and many macroinvertebrates, frogs are known to be sensitive to sediment through range studies (CM). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data (N=278).

LM447



Elevated levels of

suspended matter.



Wave wash





Likelihood: Exceedance considered to be unlikely; Cultivation decreasing, cover increasing; extreme events have caused streambank instability; high stream power and full transport typically (outside of extreme events); no significant land use change expected.Consequence: Minor impact to community resource as suspended solids are relatively easy and inexpensive to remove from raw water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM448


environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Cultivation decreasing, cover increasing; extreme events have caused streambank instability; high stream power and full transport typically (outside of extreme events); no significant land use change expected.Consequence: Minor financial impact; Low prevalence of industrial land use.Uncertainty: Low as drivers are present (land use) as identified by local experts & land use maps (Qld Globe) and data supports this.

LM449



environmental value

Elevated levels of

suspended matter.



Wave wash




South Eastern Surface Water Rare Minor Low Medium

Likelihood: Cultivation decreasing, cover increasing; extreme events have caused streambank instability; high stream power and full transport typically (outside of extreme events); no significant land use change expected.Consequence: Minor financial impact; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments. Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) although no local guideline value to assess data against.




LM450




Elevated levels of

suspended matter.



Wave wash





Likelihood: Cultivation decreasing, cover increasing; extreme events have caused streambank instability; high stream power and full transport typically (outside of extreme events); no significant land use change expected.Consequence: Minor financial impact; Visually displeasing; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM451


environmental value

Elevated pathogen

counts




aren't available.

South Eastern Surface Water Unlikely Moderate Low High

Likelihood: Expert local knowledge identified an exceedance of pathogen Aquaculture and Human Consumers of Aquatic Foods guideline as unlikely; Drivers present but not enough to pose wide-spread risk: Ecotourism - septic management, Disposal to land of treated effluent, Increasing intensive livestock, Increasing rural residential, Population growth; Lacking E.coli monitoring data. Consequence: Significant financial loss and human health risk; Aquatic biota can develop physiological defects; Human health impacted by viruses caused by pathogen.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value and no data to support.

LM452



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Expert local knowledge identified an exceedance of pathogen Aquatic guideline as unlikely; Drivers present but not enough to pose wide-spread risk: Ecotourism - septic management, Disposal to land of treated effluent, Increasing intensive livestock, Increasing rural residential, Population growth; Lacking E.coli monitoring data. Consequence: Moderate impact on ecosystem; Aquatic biota can develop physiological defects; Mass fatalities; Sensitive species most susceptible (sensitive life history or certain sensitive developmental stages). Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM453



Elevated pathogen

counts




aren't available.

South Eastern Surface Water Unlikely Minor Low High

Likelihood: Drivers present but not enough to pose wide-spread risk: Ecotourism - septic management, Disposal to land of treated effluent, Increasing intensive livestock, Increasing rural residential, Population growth; Lacking E.coli monitoring data. Consequence: Minor impact to community resource as raw water will go for treatment prior to consumption; Human health impacted by viruses caused by pathogens.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value and no data to support.

LM454


environmental value

Elevated pathogen

counts




aren't available.

South Eastern Surface Water Unlikely Insignificant Low High

Likelihood: Expert local knowledge identified an exceedance of pathogen industrial guideline as unlikely; Drivers present but these are unlikely to exceed guideline value for industrial use: Disposal to land of treated effluent- Lacking E.coli monitoring data, Population growth; Not currently sampling for E. coli or any pathogens instream. Consequence: Minimal or no financial losses.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM455



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Drivers present but not enough to pose wide-spread risk: Ecotourism - septic management, Disposal to land of treated effluent, Increasing intensive livestock, Increasing rural residential, Population growth; Lacking E.coli monitoring data; Not currently sampling for E. coli or any pathogens instream. Consequence: Significant financial loss; Viruses caused by pathogens can cause miscarriage, neurological disorders & death in cattle & swine. Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.




LM456




Elevated pathogen

counts




aren't available.


Likelihood: Drivers present but not enough to pose wide-spread risk: Ecotourism - septic management, Disposal to land of treated effluent, Increasing intensive livestock, Increasing rural residential, Population growth; Lacking E.coli monitoring data. Consequence: Moderate disturbance to recreation values and amenity; Human health impacted by viruses caused by pathogens.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM457


environmental value




Eutrophication




Likelihood: Higher rainfall zone, soil types, long term cropping, in comparison to Central Condamine risk is marginally higher. Acidification of sandy soils. Cropping is the pressure.Consequence: Major financial impact; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data; Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM458



environmental value




Eutrophication




Likelihood: Higher rainfall zone, soil types, long term cropping, in comparison to Central Condamine risk is marginally higher. Acidification of sandy soils. Cropping is the pressure.Consequence: Major impact on aquatic ecosystem; Consequence is localised and short lived; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc..Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM459






Eutrophication




Likelihood: Local experts & data analysis supports the conclusion that it is unlikely that pH would be outside natural ranges to an extent that this water would be unsuitable for use; Higher rainfall zone, soil types, long term cropping, in comparison to Central Condamine risk is marginally higher. Acidification of sandy soils. Cropping is the pressure; ASS found in effluent ponds and in several north-draining streams and wetlands just north of the Granite Belt, in the uppermost reaches of the Condamine River catchment.Consequence: Minor impact to community resource as pH is easily & inexpensively corrected in the water treatment process; Human health impacts; Corrosion of pipes.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM460


environmental value




Eutrophication




Likelihood: Higher rainfall zone, soil types, long term cropping, in comparison to Central Condamine risk is marginally higher. Acidification of sandy soils. Cropping is the pressure.Consequence: Moderate financial impact; Corrosion of pipes. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM461



environmental value




Eutrophication




Likelihood: Higher rainfall zone, soil types, long term cropping, in comparison to Central Condamine risk is marginally higher. Acidification of sandy soils. Cropping is the pressure.Consequence: Major financial loss; Corrosion of pipes; Health impacts to animals; Risks to crop health.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM462







Eutrophication




Likelihood: Higher rainfall zone, soil types, long term cropping, in comparison to Central Condamine risk is marginally higher. Acidification of sandy soils. Cropping is the pressure.Consequence: Minor impact on recreation; Irritation to eyes, skin and mucous membranes; Gastrointestinal irritation; Irreversible damage to eyes.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.




WM463


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Lack of riparian veg plus ambient rise in temperature. Some species only found in remnant areas - unknown if any localised extinction.Consequence: Moderate financial impact; Thermal tolerance of species is known; Limits recruitment of species.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM464



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Lack of riparian veg plus ambient rise in temperature. Some species only found in remnant areas - unknown if any localised extinction.Consequence: Moderate impact on aquatic ecosystem; Know temperature will impact but not the extent of this impact; Thermal tolerance of these species monitoring required; Limits recruitment of species.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM465




natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Lack of riparian veg plus ambient rise in temperature. Some species only found in remnant areas - unknown if any localised extinction.Consequence: Insignificant impacts on community resource as temperature impacts on water quality (e.g. elevated temperature promoting cyanobacteria colonies) will be treated prior to consumption.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against

WM466


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Lack of riparian veg plus ambient rise in temperature. Some species only found in remnant areas - unknown if any localised extinction.Consequence: Minimal or no financial impacts.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM467



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Lack of riparian veg plus ambient rise in temperature. Some species only found in remnant areas - unknown if any localised extinction; we know temperature will impact but not the extent of this impact. Thermal tolerance of these species monitoring required. Consequence: Minor impact on irrigation water; Cold water can stress crops.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM468





natural range




Reduced flow.



South Eastern Surface Water Rare Insignificant Low Low

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Lack of riparian veg plus ambient rise in temperature. Some species only found in remnant areas - unknown if any localised extinction; we know temperature will impact but not the extent of this impact. Thermal tolerance of these species monitoring required. Consequence: Minimal or no impact on community resource.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM469


environmental value

Dissolved oxygen




Eutrophication



Southern Surface Water Unlikely Moderate Low Medium

Likelihood: Statistical analysis shows exceedance of Aquaculture guideline as unlikely; Drivers present but addressed as Hotspots separately: grazing and dryland cropping.Consequence: Moderate individual financial loss; Oxygen availability critical to species development and reproduction.Uncertainty: ANZG dissolved oxygen guideline for Aquatic ecosystem was used in lieu of an Aquaculture guideline - this guideline may be conservative. Drivers present but identified by local experts as having localised risks only - data (mg/L) supports this conclusion (N=147).




WM470



environmental value

Dissolved oxygen




Eutrophication



Southern Surface Water Unlikely Moderate Low Low

Likelihood: Statistical analysis shows exceedance of Aquatic guideline as unlikely; Drivers present but addressed as Hotspots separately: grazing and dryland cropping.Consequence: Moderate impact on aquatic ecosystem- Risk of eutrophication increased, oxygen availability critical to species diversity and habitat. Potential for blackwater event.Uncertainty: Drivers present but identified by local experts as having localised risks only - data supports this conclusion (N=147).

WM471



Dissolved oxygen




Eutrophication




Likelihood: Drivers present but addressed as Hotspots separately: grazing and dryland cropping.Consequence: Moderate impact on community resource; Low dissolved oxygen can encourage transformation of compounds to others that may pose a health risk or be difficult to treat (WHO 2004, p215); Eutrophication risk increased when dissolved oxygen is less than 80% saturation (NHMRC 2008) - poor taste associated.Uncertainty: Drivers are localised as identified by local experts and land use maps (Queensland Globe), however no guideline exists to assess data against.

WM472


environmental value

Dissolved oxygen




Eutrophication



Southern Surface Water Rare Insignificant Low Medium

Likelihood: Drivers present but addressed as Hotspots separately: grazing and dryland cropping; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Minimal individual financial loss. Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present but identified by local experts as having localised risks only - data (mg/L) supports this conclusion (N=147).

WM473



environmental value

Dissolved oxygen




Eutrophication



Southern Surface Water Rare Moderate Low Medium

Likelihood: Drivers present but addressed as Hotspots separately: grazing and dryland cropping; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Moderate individual financial loss; Low dissolved oxygen in irrigation water can be detrimental to plant health; Elevated dissolved oxygen can promote eutrophication which can be detrimental to stock health.Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present but identified by local experts as having localised risks only - data (mg/L) supports this conclusion (N=147).

WM474




Dissolved oxygen




Eutrophication



Southern Surface Water Unlikely Minor Low Medium

Likelihood: Statistical analysis shows exceedance of NHMRC Primary Recreation guideline as unlikely; Drivers present but not enough to increase likelihood: Linked to sediments; Irrigation and dryland cropping landuse; Development not expected in future.Consequence: Minor impact on recreation values and amenity; Indirect outcome of elevated/reduced dissolved oxygen: Risk of eutrophication increased, Potential for blackwater event - these events would reduce the visual amenity and pose a potential health risk, restricting access to these waters for the duration of the event.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

LM475


environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Exceedance is considered rare; Localised drivers only.Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Stimulation of algal growth; Fish kills.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM476



environmental value

Elevated levels of

cyanobacteria.




aren't available.


Likelihood: Unlikely; No driversConsequence: Moderate impact on aquatic ecosystem- Harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008).Uncertainty: Medium as although reliable data sample size (N=260), no drivers were identified in the internal risk assessment; Exceedance of guideline is based on using chlorophyll-a as a surrogate for cyanobacteria (Microcystins).




LM477



Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Unlikely.Consequence: Moderate impact on community resource; harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- Blooms are relatively easy to treat in raw water, once the species of bloom is known.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM478


environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Unlikely.Consequence: Minimal individual financial loss.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM479



environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Unlikely.Consequence: Significant individual financial impact- harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- documented cases of livestock fatalities following exposure - Not an issue for irrigation waters.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM480




Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Potential hotspot (L: 4) in Leslie dam.Consequence: Moderate impact on community resource, recreation values and amenity; Harmful effects on tissues, cells or organisms; Depending on toxin, potentially lethal at high doses (NHMRC, 2008).Uncertainty: Medium as although reliable data sample size (N=260), no drivers were identified in the internal risk assessment.

LM481


environmental value







Southern Surface Water Rare Minor Low Medium

Likelihood: Exceedance is considered rare; Localised drivers only.Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Stimulation of algal growth; Fish kills.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM482



environmental value







Southern Surface Water Rare Moderate Low Low

Likelihood: Statistical analysis shows exceedance of Basin Plan B1 Target application zone guideline for Total Phosphorous & Total Nitrogen is rare; Localised drivers only.Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations; Aquatic biota susceptible, mass fatalities may occur.Uncertainty: Low as localised only drivers identified by local experts & land use maps (Qld Globe) - this is supported by the data (TN: N=68 & TP: N=409).

LM483









Southern Surface Water Rare Moderate Low Medium

Likelihood: Exceedance considered to be rare; Localised drivers only.Consequence: Moderate impact to community resource as although raw water will go for treatment prior to consumption, some nutrients can reduce the effectiveness of disinfection; Human health risk; Stimulation of algal growth; Of particular issue for consumers of bore/ground water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value and no data to support.




LM484


environmental value







Southern Surface Water Rare Minor Low Low

Likelihood: Expert knowledge considered exceedance of industry use guideline as rare; Localised drivers only; Industry water use can tolerate concentrations of nutrients that would pose risk for other uses of water.Consequence: Minor financial losses; Lower as industry isn't a major land use- localised effects only.Uncertainty: Low as localised only drivers identified by local experts & land use maps (Qld Globe) - this is supported by the data (TN: N=68 & TP: N=409).

LM485



environmental value








Likelihood: Statistical analysis shows exceedance of ANZG Irrigation guideline for Total Phosphorous and Total Nitrogen as rare; Localised drivers only.Consequence: Significant financial loss; Stimulation of algal growth in stock water; Poisoning, which can result in loss of productivity or death; Irrigation water containing nutrients is beneficial for plants; Stimulation of algal growth.Uncertainty: Low as localised only drivers identified by local experts & land use maps (Qld Globe) - this is supported by the data (TN: N=68 & TP: N=409).

LM486










Southern Surface Water Unlikely Minor Low Low

Likelihood: Statistical analysis shows exceedance of NHMRC Recreation guideline for Total Phosphorous is unlikely; Localised drivers only.Consequence: Minor impact on community resource, recreation values and amenity; Increases risk of eutrophication & related aesthetic impacts (smells); Fish kills. Uncertainty: Low as drivers not identified by local experts & land use maps (Qld Globe) - this is supported by the data (TN: N=68 & TP: N=409).

LM487


environmental value

Elevated levels of


contaminants







Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas. Consequence: Minor financial loss as low prevalence of aquaculture in catchment.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM488



environmental value

Elevated levels of


contaminants







Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Few drivers, these would have localised impacts only.Consequence: Moderate impacts on aquatic ecosystem.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM489



Elevated levels of


contaminants






Southern Surface Water Rare Major Low Medium

Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Few drivers, these would have localised impacts only.Consequence: Major impact to community resource as pesticides and other contaminants are not easily detected and are expensive to treat; Human health impacts.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM490


environmental value

Elevated levels of


contaminants







Likelihood: Drivers limited, industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment.Consequence: Moderate financial impact.Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) show drivers present but no data to support.




LM491



environmental value

Elevated levels of


contaminants







Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Few drivers, these would have localised impacts only.Consequence: Moderate financial impacts; Animal health risk; Human health risk.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM492




Elevated levels of


contaminants







Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas.Consequence: Moderate impact on recreation; Human health issue.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support

LM493


environmental value







Likelihood: Statistical analysis of water quality data shows exceedance of ANZG freshwater Aquaculture guideline as rare; Drivers present: Highly erosive soils; chance of salt expression not due to irrigation.Consequence: Moderate financial impact; Relatively low ambient EC for these creeks 50th percentile = 305uS/cm; Productivity influenced (growth stunted by expending energy elsewhere); Fatalities in extreme conditions [ANZG 2000].Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data (N= 745); Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM494









Likelihood: Local experts & data analysis supports the conclusion that it is unlikely salinity concentrations would be elevated to an extent that this water would be unsuitable for use; Drivers present: Highly erosive soils; chance of salt expression not due to irrigation.Consequence: Moderate impact on community resource as saline water is difficult to treat; Aesthetic quality impacted (taste); Health impacts in extreme cases; Relatively low ambient EC for these creeks 50th percentile = 305uS/cm.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to compare data against.

LM495


environmental value







Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Highly erosive soils; chance of salt expression not due to irrigation.Consequence: Moderate financial impact; Relatively low ambient EC for these creeks 50th percentile = 305uS/cm.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data (N= 745).




LM496



environmental value







Likelihood: Drivers present: Highly erosive soils; chance of salt expression not due to irrigation.Consequence: Moderate financial impact; Reduced plant productivity; Crop failure; Reduced livestock productivity; Salt poisoning resulting in death; Relatively low ambient EC for these creeks 50th percentile = 305uS/cm.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data (N= 745).

LM497










Likelihood: Drivers present: Highly erosive soils; chance of salt expression not due to irrigation.Consequence: Primary - exposure to unsanitary water under extreme circumstance (i.e. decaying aquatic life); salinity influences the activation of viruses [NHMRC- Guidelines for managing risks in Rec water]; Secondary - Impacts of decaying aquatic life (eutrophication, exposure to pathogen etc.);Aesthetic - Salt crusts; dead aquatic life and resultant impacts (poor smell, upsetting etc.); Relatively low ambient EC for these creeks 50th percentile = 305uS/cm.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data (N= 745).

LM498


environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas.Consequence: Low prevalence of aquaculture in catchment; Reduced light penetration; Physiological damage; Smothering.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) and this is supported by data.

LM499



environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Statistical analysis shows exceedance of ANZG Aquatic ecosystem guideline is rare- data exceeded guideline value between <15% of sample occasions;Consequence: Moderate impacts on aquatic ecosystem; Reduced light penetration. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data (N=306)

LM500



Elevated levels of

suspended matter.



Wave wash





Likelihood: Exceedance considered to be unlikely.Consequence: Minor impact to community resource as suspended solids are relatively easy and inexpensive to remove from raw water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value and no data to support.




LM501


environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Drivers limited, industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment.Consequence: Minor financial impact.Uncertainty: Low as drivers are present (land use) as identified by local experts & land use maps (Qld Globe) and data supports this.

LM502



environmental value

Elevated levels of

suspended matter.



Wave wash




Southern Surface Water Rare Minor Low Medium

Likelihood: Rare.Consequence: Minor financial impact; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments. Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) although no local guideline value to assess data against.

LM503




Elevated levels of

suspended matter.



Wave wash





Likelihood: Rare.Consequence: Minor financial impact; Visually displeasing; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM504


environmental value

Elevated pathogen

counts




aren't available.

Southern Surface Water Rare Minor Low High

Likelihood: Local expert knowledge identified exceedance of Aquaculture and Human Consumers of Aquatic Foods guideline as rare; Drivers not present: Minimal development anticipated; Not currently sampling for E. coli or any pathogens instream. Consequence: Significant financial loss and human health risk; Aquatic biota can develop physiological defects; Human health impacted by viruses caused by pathogen.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no known guideline value and no data to support.

LM505



environmental value

Elevated pathogen

counts




aren't available.

Southern Surface Water Rare Moderate Low High

Likelihood: Local expert knowledge identified exceedance of Aquatic guideline as rare; Drivers not present: Minimal development anticipated; Not currently sampling for E. coli or any pathogens instream. Consequence: Moderate impact on ecosystem; Aquatic biota can develop physiological defects; Mass fatalities; Sensitive species most susceptible (sensitive life history or certain sensitive developmental stages).Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM506



Elevated pathogen

counts




aren't available.

Southern Surface Water Rare Minor Low High

Likelihood: Local expert knowledge identified exceedance of Aquaculture and Human Consumers of Aquatic Foods guideline as rare; Drivers not present: Minimal development anticipated; Not currently sampling for E. coli or any pathogens instream. Consequence: Minor impact to community resource as raw water will go for treatment prior to consumption; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no local guideline value and no data to support.




LM507



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Drivers not present: Minimal development anticipated; Not currently sampling for E. coli or any pathogens instream. Consequence: Significant financial loss; Viruses caused by pathogens can cause miscarriage, neurological disorders & death in cattle & swine.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM508




Elevated pathogen

counts




aren't available.


Likelihood: Local expert knowledge identified exceedance of Aquaculture and Human Consumers of Aquatic Foods guideline as rare; Drivers not present: Minimal development anticipated; Not currently sampling for E. coli or any pathogens instream. Consequence: Moderate disturbance to recreation values and amenity; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM509


environmental value




Eutrophication



Southern Surface Water Rare Major Low Low

Likelihood: Rare.Consequence: Major financial impact; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data; Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM510






Eutrophication




Likelihood: Local experts & data analysis supports the conclusion that it is unlikely that pH would be outside natural ranges to an extent that this water would be unsuitable for use.Consequence: Minor impact to community resource as pH is easily & inexpensively corrected in the water treatment process; Human health impacts; Corrosion of pipes.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM511


environmental value




Eutrophication




Likelihood: Rare.Consequence: Moderate financial impact.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM512



environmental value




Eutrophication



Southern Surface Water Rare Major Low Low

Likelihood: Rare.Consequence: Major financial loss; Corrosion of pipes; Health impacts to animals; Risks to crop health.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM513







Eutrophication




Likelihood: Rare.Consequence: Minor impact on recreation; Irritation to eyes, skin and mucous membranes; Gastrointestinal irritation; Irreversible damage to eyes.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

WM514


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use.Consequence: Moderate financial impact; Thermal tolerance of species is known; Limits recruitment of species.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.




WM515



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use.Consequence: Moderate impact on aquatic ecosystem; Know temperature will impact but not the extent of this impact; Thermal tolerance of these species monitoring required; Limits recruitment of species.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM516




natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use.Consequence: Insignificant impacts on community resource as temperature impacts on water quality (e.g. elevated temperature promoting cyanobacteria colonies) will be treated prior to consumption.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM517


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use.Consequence: Minimal or no financial impacts. Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM518



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use. Consequence: Minor impact on irrigation water; Cold water can stress crops.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM519





natural range




Reduced flow.



Southern Surface Water Rare Insignificant Low Low

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use. Consequence: Minimal or no impact on community resource.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM520


environmental value

Dissolved oxygen




Eutrophication



South-Western Surface Water Unlikely Moderate Low High

Likelihood: Expert local knowledge identified the exceedance of Aquaculture guideline as unlikely; No data to support this; Drivers present: Grazing and forestry in upper catchments; mix of dryland and irrigated cropping on lower floodplains - assumes other possible sources of organic loading (coal seam gas etc.) are regulated. Consequence: Moderate individual financial loss; Oxygen availability critical to species development and reproduction.Uncertainty: ANZG dissolved oxygen guideline for Aquatic ecosystem was used in lieu of an Aquaculture guideline - this guideline may be conservative. Drivers present as identified by local experts and land use maps (Queensland Globe) - no data available to validate this.




WM521



environmental value

Dissolved oxygen




Eutrophication



South-Western Surface Water Unlikely Moderate Low Medium

Likelihood: Expert local knowledge identified the exceedance of Aquatic guideline as unlikely; No data to support this; Drivers present: Grazing and forestry in upper catchments; mix of dryland and irrigated cropping on lower floodplains- Assumes other possible sources of organic loading (coal seam gas etc.) are regulated. Consequence: Moderate impact on aquatic ecosystem- Risk of eutrophication increased, oxygen availability critical to species diversity and habitat. Potential for blackwater event.Uncertainty: Drivers identified by expert knowledge although no data available to validate this.

WM522



Dissolved oxygen




Eutrophication




Likelihood: Concluded to be unlikely by local experts; No data available to support this; Drivers present: Grazing and forestry in upper catchments; mix of dryland and irrigated cropping on lower floodplains- Assumes other possible sources of organic loading (coal seam gas etc.) are regulated. Consequence: Moderate impact on community resource; Low dissolved oxygen can encourage transformation of compounds to others that may pose a health risk or be difficult to treat (WHO 2004, p215); Eutrophication risk increased when dissolved oxygen is less than 80% saturation (NHMRC 2008) - poor taste associated.Uncertainty: Large presence of drivers but local experts concluded exceedance as unlikely - no guideline to assess against - data is not available.

WM523


environmental value

Dissolved oxygen




Eutrophication



South-Western Surface Water Rare Insignificant Low Medium

Likelihood: No data available to support this; Drivers present: Grazing and forestry in upper catchments; mix of dryland and irrigated cropping on lower floodplains- Assumes other possible sources of organic loading (coal seam gas etc.) are regulated; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Minimal individual financial loss.Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present as identified by local experts and land use maps (Queensland Globe) - no data to validate this.

WM524



environmental value

Dissolved oxygen




Eutrophication



South-Western Surface Water Rare Moderate Low Medium

Likelihood: No data to validate this; Drivers present: Grazing and forestry in upper catchments; mix of dryland and irrigated cropping on lower floodplains- Assumes other possible sources of organic loading (coal seam gas etc.) are regulated; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Moderate individual financial loss; Low dissolved oxygen in irrigation water can be detrimental to plant health; Elevated dissolved oxygen can promote eutrophication which can be detrimental to stock health.Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present as identified by local experts and land use maps (Queensland Globe) - no data to validate this.

WM525




Dissolved oxygen




Eutrophication



South-Western Surface Water Unlikely Minor Low Medium

Likelihood: Expert local knowledge identified the exceedance of NHMRC Primary Recreation guideline as unlikely; No data to support this; Drivers present: Grazing and forestry in upper catchments; mix of dryland and irrigated cropping on lower floodplains- Assumes other possible sources of organic loading (coal seam gas etc.) are regulated. Consequence: Minor impact on recreation values and amenity; Indirect outcome of elevated/reduced dissolved oxygen: Risk of eutrophication increased, Potential for blackwater event- These events would reduce the visual amenity and pose a potential health risk, restricting access to these waters for the duration of the event.Uncertainty: Drivers present as identified by local experts and land use maps (Queensland Globe) - no data to validate this; Risks to secondary and visual recreation assessed by the impact of indirect outcomes as no guideline exists.

LM526


environmental value

Elevated levels of

cyanobacteria.







Likelihood: First principles - more sediment, more nutrients; Drivers present: Grazing and forestry in upper catchments; mix of dryland and irrigated cropping on lower floodplains; coal mining; coal seam gas wells, new sewage from the temporary camps; Brisbane biosolids - drying and dispersing to land.Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills; Stimulation of algal growth.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.




LM527



Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Unlikely; Predictability of blue green algal blooms isn't that high. Lack of chl a data for instream. Infrequent occurrence (last event 1991). Lack of baseline monitoring.Consequence: Moderate impact on community resource; harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- Blooms are relatively easy to treat in raw water, once the species of bloom is known.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM528


environmental value

Elevated levels of

cyanobacteria.







Likelihood: Predictability of blue green algal blooms isn't that high. Lack of chl a data for instream. Infrequent occurrence (last event 1991). Lack of baseline monitoring.Consequence: Minimal individual financial loss.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM529



environmental value

Elevated levels of

cyanobacteria.







Likelihood: Predictability of blue green algal blooms isn't that high. Lack of chl a data for instream. Infrequent occurrence (last event 1991). Lack of baseline monitoring.Consequence: Significant individual financial impact- harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- documented cases of livestock fatalities following exposure - Not an issue for irrigation waters.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM530




Elevated levels of

cyanobacteria.







Likelihood: Predictability of blue green algal blooms isn't that high. Lack of chl-a data for instream. Infrequent occurrence (last event 1991). Lack of baseline monitoring.Consequence: Moderate impact on community resource, recreation values and amenity; Harmful effects on tissues, cells or organisms; Depending on toxin, potentially lethal at high doses (NHMRC, 2008).Uncertainty: Medium as despite reliable data sample size (N=113) local expert knowledge didn't identify any drivers (no recent blooms at Chinchilla Weir; Low nutrient inputs).

LM531


environmental value








Likelihood: First principles - more sediment, more nutrients; Drivers present: Grazing and forestry in upper catchments; mix of dryland and irrigated cropping on lower floodplains; coal mining; coal seam gas wells, new sewage from the temporary camps; Brisbane biosolids - drying and dispersing to land.Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills; Stimulation of algal growth.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.




LM532



environmental value








Likelihood: Statistical analysis shows exceedance of Basin Plan B1 Target application zone guideline for Total Phosphorous & Total Nitrogen is unlikely; First principles - more sediment, more nutrients; Drivers present: Grazing and forestry in upper catchments; mix of dryland and irrigated cropping on lower floodplains; coal mining; coal seam gas wells, new sewage from the temporary camps; Brisbane biosolids - drying and dispersing to land.Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations; Aquatic biota susceptible, mass fatalities may occur.Uncertainty: Medium as drivers are highly concentrated as identified by local experts and land use maps (Qld Globe). This is contradicted by the statistical analysis which is perhaps reflective of the high concentration of the guideline value. (TN: N=43 & TP: N=144).

LM533










Likelihood: First principles - more sediment, more nutrients; Drivers present: Grazing and forestry in upper catchments; mix of dryland and irrigated cropping on lower floodplains; coal mining; coal seam gas wells, new sewage from the temporary camps; Brisbane biosolids - drying and dispersing to land.Consequence: Moderate impact to community resource as although raw water will go for treatment prior to consumption, some nutrients can reduce the effectiveness of disinfection; Human health risk; Stimulation of algal growth; Of particular issue for consumers of bore/ground water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM534


environmental value







South-Western Surface Water Rare Minor Low Low

Likelihood: Expert knowledge considered exceedance of industry use guideline as rare; First principles - more sediment, more nutrients; Drivers present however industry water use can tolerate concentrations of nutrients that would pose risk for other uses of water: Grazing and forestry in upper catchments; mix of dryland and irrigated cropping on lower floodplains; coal mining; coal seam gas wells, new sewage from the temporary camps; Brisbane biosolids - drying and dispersing to land.Consequence: Minor financial losses; Lower as industry isn't a major land use- localised effects only.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN: N=43 & TP: N=144).

LM535



environmental value







South-Western Surface Water Rare Moderate Low Low

Likelihood: Statistical analysis shows exceedance of ANZG Irrigation guideline for Total Phosphorous and Total Nitrogen as rare; First principles - more sediment, more nutrients; Drivers present: Grazing and forestry in upper catchments; mix of dryland and irrigated cropping on lower floodplains; coal mining; coal seam gas wells, new sewage from the temporary camps; Brisbane biosolids - drying and dispersing to land.Consequence: Significant financial loss; Stimulation of algal growth in stock water; Poisoning, which can result in loss of productivity or death; Irrigation water containing nutrients is beneficial for plants; Stimulation of algal growth; Higher due to large prop of grazing with some irrigation.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN: N=43 & TP: N=144).

LM536










South-Western Surface Water Unlikely Minor Low Low

Likelihood: Statistical analysis shows NHMRC Recreation guideline for Total Phosphorous as almost certain to be exceeded- data exceeded guideline value between >85% of sample occasions; This was reduced to unlikely, as the guideline value for recreation is based on the risk of eutrophication due to excess nutrients. E.g. this isn't a completely accurate proxy as eutrophication is dependent on other drivers; First principles - more sediment, more nutrients; Drivers present: Grazing and forestry in upper catchments; mix of dryland and irrigated cropping on lower floodplains; coal mining; coal seam gas wells, new sewage from the temporary camps; Brisbane biosolids - drying and dispersing to land.Consequence: Minor impact on community resource, recreation values and amenity; Increases risk of eutrophication & related aesthetic impacts (smells); Fish kills. Uncertainty: Low as drivers present as identified by local experts and land use maps (Qld Globe). This is supported by the data (TP: N=144).




LM537


environmental value

Elevated levels of


contaminants







Likelihood: Increased agriculture. Traditionally no one sprayed for weeds and pests. Now companies adhere to pest management plans; Lacking monitoring for pesticides/herbicides.Consequence: Minor financial loss as low prevalence of aquaculture in catchment.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM538



environmental value

Elevated levels of


contaminants







Likelihood: Increased agriculture. Traditionally no one sprayed for weeds and pests. Now companies adhere to pest management plans. Roads and transport corridors. Lacking monitoring for pesticides/herbicides. Cumulative impacts are unknown. System susceptible to impacts - presumed based on, traditionally not having the exposure. Agriculture is a priority, as well as your mining best practice. Consequence: Moderate impacts on aquatic ecosystem.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM539



Elevated levels of


contaminants






South-Western Surface Water Rare Major Low Medium

Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Incidental discharge of CSG water; Wilkie Creek coal mine pit discharge - if had an impact it would be very localised and during low flow; Increased agriculture; Traditionally no one sprayed for weeds and pests, now companies adhere to pest management plans; Pesticides/herbicides currently below drinking water levels (DNRM monitoring at Chinchilla Weir).Consequence: Major impact to community resource as pesticides and other contaminants are not easily detected and are expensive to treat; Human health impacts; System susceptible to impacts - presumed based on, traditionally not having the exposure.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM540


environmental value

Elevated levels of


contaminants







Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Cumulative impact of infrastructure, roads etc. and clearing and developing new irrigation paddocks; Discharge for CSG water to environment occurs here. Impacts from these regulated activities are regulated, managed and minimised through the Development Application and Environmental Authority approval process; Traditionally no one sprayed for weeds and pests. Now companies adhere to pest management plans. Roads and transport corridors. Lacking monitoring for pesticides/herbicides.Consequence: Minor financial impact; Small proportion of industrial land use in risk assessment area; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) show drivers present but no data to support.

LM541



environmental value

Elevated levels of


contaminants







Likelihood: Increased agriculture. Traditionally no one sprayed for weeds and pests. Now companies adhere to pest management plans. Roads and transport corridors. Lacking monitoring for pesticides/herbicides. Cumulative impacts are unknown. Pesticides/herbicides currently below drinking water levels based on D. Waters monitoring at Chinchilla Weir. System susceptible to impacts - presumed based on, traditionally not having the exposure. Agriculture is a priority, as well as your mining best practice. Consequence: Moderate financial impacts; Animal health risk; Human health risk.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM542




Elevated levels of


contaminants







Likelihood: Increased agriculture. Traditionally no one sprayed for weeds and pests. Now companies adhere to pest management plans; Lacking monitoring for pesticides/herbicides.Consequence: Moderate impact on recreation; Human health issue.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.




LM543


environmental value







Likelihood: Statistical analysis of water quality data shows exceedance of ANZG freshwater Aquaculture guideline as rare; Cumulative impact of infrastructure, roads etc. and clearing and developing new irrigation paddocks, exposing saline / sodic soils; Note- Very highly concentrated CSG & Mining in this assessment area; Discharge for CSG water to environment occurs here. Impacts from these regulated activities are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Thus, likelihood of negative impact is low.Consequence: Moderate financial impact; Aquaculture not a major land use; Productivity influenced (growth stunted by expending energy elsewhere); Fatalities in extreme conditions [ANZG 2000].Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data (N=906); Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM544









Likelihood: Local experts & data analysis supports the conclusion that it is unlikely salinity concentrations would be elevated to an extent that this water would be unsuitable for use; CSG incidental discharge to the environment. Clearing and developing new irrigation paddocks, new infrastructure; Exposing saline and sodic soils; Ecotox data available on Reverse Osmosis Permeate (treated water); Modelling shows ionic composition quite altered over life of the CSG industry [Healthy Headwaters Project].Consequence: Moderate impact on community resource as saline water is difficult to treat; Aesthetic quality impacted (taste); Health impacts in extreme cases; Ambient EC is naturally low in this catchment (median 230 (Carl M.)).Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to compare data against.

LM545


environmental value







Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Cumulative impact of infrastructure, roads etc. and clearing and developing new irrigation paddocks, exposing saline / sodic soils; Note- Very highly concentrated CSG & Mining in this assessment area; Discharge for CSG water to environment occurs here. Impacts from these regulated activities are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Thus, likelihood of negative impact is low. Consequence: Minor financial impact; Small proportion of industrial land use in risk assessment area; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM546



environmental value






South-Western Surface Water Unlikely Moderate Low Low

Likelihood: Cumulative impact of infrastructure, roads etc. and clearing and developing new irrigation paddocks, exposing saline / sodic soils; Note- Very highly concentrated CSG & Mining in this assessment area; Discharge for CSG water to environment occurs here. These are regulated activities and are managed through the Development Application and Environmental Authority approval process. Consequence: Irrigated production on floodplains more susceptible to rising saline GW; Reduced plant productivity; Crop failure; Reduced livestock productivity; Salt poisoning resulting in death.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.




LM547










Likelihood: Cumulative impact of infrastructure, roads etc. and clearing and developing new irrigation paddocks, exposing saline / sodic soils; Note- Very highly concentrated CSG & Mining in this assessment area; Discharge for CSG water to environment occurs here. Impacts from these regulated activities are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Thus, likelihood of negative impact is low.Consequence: Primary - exposure to unsanitary water under extreme circumstance (i.e. decaying aquatic life); Secondary - Impacts of decaying aquatic life (eutrophication, exposure to pathogen etc.); Aesthetic - Salt crusts; dead aquatic life and resultant impacts (poor smell, upsetting etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM548


environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Lots of earthworks in catchment due to CSG, mining and irrigation development and clearing over the next 10 years. Currently highly variable turbid systems (117 mg/L 227 NTU). Sodic dispersive landscapes driving turbidity/erosion. Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Reduced light penetration; Physiological damage; Smothering.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) and this is supported by data.

LM549



Elevated levels of

suspended matter.



Wave wash





Likelihood: Exceedance considered to be unlikely; Lots of earthworks in catchment due to CSG, mining and irrigation development and clearing over the next 10 years. Currently highly variable turbid systems (117 mg/L 227 NTU). Sodic dispersive landscapes driving turbidity/erosion. CSG and mining are regulated activities. Thus impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process.Consequence: Minor impact to community resource as suspended solids are relatively easy and inexpensive to remove from raw water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM550


environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Lots of earthworks in catchment due to CSG, mining and irrigation development and clearing over the next 10 years. Currently highly variable turbid systems (117 mg/L 227 NTU). Sodic dispersive landscapes driving turbidity/erosion. CSG and mining are regulated activities. Thus impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process.Consequence: Moderate financial impact; Unable to operate business resulting in loss of business, reduced employment capacity; Mining/CSG impacted in SW.Uncertainty: Low as drivers are present (land use) as identified by local experts & land use maps (Qld Globe) and data supports this.

LM551



environmental value

Elevated levels of

suspended matter.



Wave wash




South-Western Surface Water Rare Minor Low Medium

Likelihood: Lots of earthworks in catchment due to CSG, mining and irrigation development and clearing over the next 10 years. Currently highly variable turbid systems (117 mg/L 227 NTU). Sodic dispersive landscapes driving turbidity/erosion. CSG and mining are regulated activities. Thus impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process.Consequence: Minor financial impact; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) although no local guideline value to assess data against.




LM552




Elevated levels of

suspended matter.



Wave wash





Likelihood: Lots of earthworks in catchment due to CSG, mining and irrigation development and clearing over the next 10 years. Currently highly variable turbid systems (117 mg/L 227 NTU). Sodic dispersive landscapes driving turbidity/erosion. CSG and mining are regulated activities. Thus impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process.Consequence: Minor financial impact; Visually displeasing; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM553


environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Expert local knowledge identified an exceedance of pathogen guidelines as possible; Drivers present: Disposal to land of treated effluent- Lacking E.coli monitoring data, Population growth, Grazing and forestry in upper catchments, mix of dryland and irrigated cropping on lower floodplains, coal mining, coal seam gas wells, Dispersive soils in catchment; Not currently sampling for E. coli or any pathogens instream. Consequence: Significant financial loss and human health risk; Aquatic biota can develop physiological defects; Human health impacted by viruses caused by pathogen.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value and no known data to assess against.

LM554



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Expert local knowledge identified an exceedance of pathogen Aquatic Ecosystem guideline as possible; Drivers present: Disposal to land of treated effluent- Lacking E.coli monitoring data, Population growth, Grazing and forestry in upper catchments, mix of dryland and irrigated cropping on lower floodplains. Dispersive soils in catchment; Not currently sampling for E. coli or any pathogens instream. Consequence: Moderate impact on ecosystem; Aquatic biota can develop physiological defects; Mass fatalities; Sensitive species most susceptible (sensitive life history or certain sensitive developmental stages).Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no known data to assess against guideline.

LM555



Elevated pathogen

counts




aren't available.

South-Western Surface Water Possible Minor Low High

Likelihood: Disposal to land of treated effluent; Lacking E.coli monitoring data; Population growth; Not currently sampling for E. coli or any pathogens instream. Consequence: Minor impact to community resource as raw water will go for treatment prior to consumption; Human health impacted by viruses caused by pathogens.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value and no data to support.

LM556


environmental value

Elevated pathogen

counts




aren't available.

South-Western Surface Water Unlikely Insignificant Low High

Likelihood: Expert local knowledge identified an exceedance of pathogen guidelines as unlikely; Drivers present but these are unlikely to exceed guideline value for industrial use: Disposal to land of treated effluent- Lacking E.coli monitoring data, Population growth, Grazing and forestry in upper catchments; mix of dryland and irrigated cropping on lower floodplains, coal mining, coal seam gas wells; Not currently sampling for E. coli or any pathogens instream. Consequence: Minimal or no financial losses.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM557



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Drivers present: Disposal to land of treated effluent- Lacking E.coli monitoring data, Population growth, Grazing and forestry in upper catchments, mix of dryland and irrigated cropping on lower floodplains, coal mining, coal seam gas wells, Dispersive soils in catchment; Not currently sampling for E. coli or any pathogens instream. Consequence: Significant financial loss; Viruses caused by pathogens can cause miscarriage, neurological disorders & death in cattle & swine [1].Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to assess against guideline.




LM558




Elevated pathogen

counts




aren't available.


Likelihood: Disposal to land of treated effluent; Lacking E.coli monitoring data; Population growth; Not currently sampling for E. coli or any pathogens instream. Consequence: Moderate disturbance to recreation values and amenity; Human health impacted by viruses caused by pathogens.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to assess against guideline.L61

LM559


environmental value




Eutrophication



South-Western Surface Water Rare Major Low Low

Likelihood: Incidental discharge of CSG water. There's a mix of alkaline and acid soils in this region. Localised impacts - short term impact as rainfall will flush system. Wilkie Creek coal mine pit discharge - high possibility of acid water.Consequence: Major financial impact; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data; Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM560



environmental value




Eutrophication




Likelihood: Incidental discharge of CSG water. There's a mix of alkaline and acid soils in this region. Localised impacts - short term impact as rainfall will flush system. Wilkie Creek coal mine pit discharge - high possibility of acid water.Consequence: Major impact on aquatic ecosystem; Consequence is localised and short lived; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc. Wilkie Creek- if had an impact it would be very localised and during low flow.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM561






Eutrophication




Likelihood: Local experts & data analysis supports the conclusion that it is unlikely that pH would be outside natural ranges to an extent that this water would be unsuitable for use; Incidental discharge of CSG water. There's a mix of alkaline and acid soils in this region. Localised impacts - short term impact as rainfall will flush system. Wilkie Creek coal mine pit discharge - high possibility of acid water - if had an impact it would be very localised and during low flow.Consequence: Minor impact to community resource as pH is easily & inexpensively corrected in the water treatment process; Human health impacts; Corrosion of pipes. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM562


environmental value




Eutrophication




Likelihood: Incidental discharge of CSG water. There's a mix of alkaline and acid soils in this region. Localised impacts - short term impact as rainfall will flush system. Wilkie Creek coal mine pit discharge - high possibility of acid water.Consequence: Moderate financial impact; Corrosion of pipes. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM563



environmental value


Exposure of Potential Acid Sulphate Soils to air

Acidification of soils from agricultural practices

Eutrophication



South-Western Surface Water Rare Major Low Low

Likelihood: Incidental discharge of CSG water. There's a mix of alkaline and acid soils in this region. Localised impacts - short term impact as rainfall will flush system. Wilkie Creek coal mine pit discharge - high possibility of acid water.Consequence: Major financial loss; Corrosion of pipes; Health impacts to animals; Risks to crop health.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM564







Eutrophication




Likelihood: Incidental discharge of CSG water. There's a mix of alkaline and acid soils in this region. Localised impacts - short term impact as rainfall will flush system. Wilkie Creek coal mine pit discharge - high possibility of acid water.Consequence: Minor impact on recreation; Irritation to eyes, skin and mucous membranes; Gastrointestinal irritation; Irreversible damage to eyes.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.




WM565


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; coal seam gas discharge may be temperature differences - however very localised. Accidental spills coal seam gas. Possible clearing of riparian corridors through coal seam gas development, but localised. Consequence: Moderate financial impact; Thermal tolerance of species is known; Limits recruitment of species.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM566



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; coal seam gas discharge may be temperature differences - however very localised. Accidental spills coal seam gas. Possible clearing of riparian corridors through coal seam gas development, but localised. Consequence: Moderate impact on aquatic ecosystem; Know temperature will impact but not the extent of this impact; Thermal tolerance of these species monitoring required; Limits recruitment of species.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM567




natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; coal seam gas discharge may be temperature differences - however very localised. Accidental spills coal seam gas. Possible clearing of riparian corridors through coal seam gas development, but localised. Consequence: Insignificant impacts on community resource as temperature impacts on water quality (e.g. elevated temperature promoting cyanobacteria colonies) will be treated prior to consumption.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM568


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; coal seam gas discharge may be temperature differences - however very localised. Accidental spills coal seam gas. Possible clearing of riparian corridors through coal seam gas development, but localised. Consequence: Minimal or no financial impacts. Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM569



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; coal seam gas discharge may be temperature differences - however very localised. Accidental spills coal seam gas. Possible clearing of riparian corridors through coal seam gas development, but localised. Consequence: Minor impact on irrigation water; Cold water can stress crops.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM570





natural range




Reduced flow.



South-Western Surface Water Rare Insignificant Low Low

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Development not expected - comments as per sediment; coal seam gas discharge may be temperature differences - however very localised. Accidental spills coal seam gas. Possible clearing of riparian corridors through coal seam gas development, but localised. Consequence: Minimal or no impact on community resource.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.




WM571


environmental value

Dissolved oxygen




Eutrophication



Upper Balonne Surface Water Unlikely Moderate Low Medium

Likelihood: Statistical analysis shows exceedance of Aquaculture guideline as unlikely; Natural blackwater events have occurred in Yuleba - this is addressed as a hotspot; potential risk increase with clearing and development; Drivers present but these aren't widespread enough to increase risk - Linked to sediment justification, grazing etc.Consequence: Moderate individual financial loss; Oxygen availability critical to species development and reproduction.Uncertainty: ANZG dissolved oxygen guideline for Aquatic ecosystem was used in lieu of an Aquaculture guideline - this guideline may be conservative. Drivers not present as identified by local experts and land use maps (Queensland Globe) - data supports this conclusion (N=154).

WM572



environmental value

Dissolved oxygen




Eutrophication



Upper Balonne Surface Water Unlikely Moderate Low Low

Likelihood: Statistical analysis shows exceedance of Aquatic guideline as unlikely; Natural blackwater events have occurred in Yuleba - this is addressed as a hotspot; potential risk increase with clearing and expansion of mine; Drivers present but these aren't widespread enough to increase risk - linked to sediment justification, grazing etc.Consequence: Moderate impact on aquatic ecosystem - risk of eutrophication increased, oxygen availability critical to species diversity and habitat. Potential for blackwater event.Uncertainty: Drivers present but identified by local experts as having localised risks only - data supports this conclusion (N=154).

WM573



Dissolved oxygen




Eutrophication




Likelihood: Concluded by local experts to be unlikely; Natural blackwater events have occurred in Yuleba- this is addressed as a hotspot; potential risk increase with clearing and development; Drivers present but these aren't widespread enough to increase risk - Linked to sediment justification, grazing etc.Consequence: Moderate impact on community resource; Low dissolved oxygen can encourage transformation of compounds to others that may pose a health risk or be difficult to treat (WHO 2004, p215); Eutrophication risk increased when dissolved oxygen is less than 80% saturation (NHMRC 2008) - poor taste associated.Uncertainty: Drivers are localised as identified by local experts and land use maps (Queensland Globe), although no guideline to assess against and data is not available.

WM574


environmental value

Dissolved oxygen




Eutrophication



Upper Balonne Surface Water Rare Insignificant Low Medium

Likelihood: Natural blackwater events have occurred in Yuleba- this is addressed as a hotspot; potential risk increase with clearing and development; Drivers present but these aren't widespread enough to increase risk - Linked to sediment justification, grazing etc.; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Minimal individual financial loss.Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present but identified by local experts as having localised risks only - data (mg/L) supports this conclusion (N=154).

WM575



environmental value

Dissolved oxygen




Eutrophication



Upper Balonne Surface Water Rare Moderate Low Medium

Likelihood: Natural blackwater events have occurred in Yuleba - this is addressed as a hotspot; potential risk increase with clearing and expansion of mine; Drivers present but these aren't widespread enough to increase risk - Linked to sediment justification, grazing etc.; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Moderate individual financial loss; Low dissolved oxygen in irrigation water can be detrimental to plant health; Elevated dissolved oxygen can promote eutrophication which can be detrimental to stock health.Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present but identified by local experts as having localised risks only - data (mg/L) supports this conclusion (N=154).




WM576




Dissolved oxygen




Eutrophication



Upper Balonne Surface Water Unlikely Minor Low Medium

Likelihood: Statistical analysis shows exceedance of NHMRC Primary Recreation guideline as unlikely; Natural blackwater events have occurred in Yuleba- this is addressed as a hotspot; potential risk increase with clearing and development; Drivers present but these aren't widespread enough to increase risk- Linked to sediment justification, grazing etc.Consequence: Minor impact on recreation values and amenity; Indirect outcome of elevated/reduced dissolved oxygen: Risk of eutrophication increased, Potential for blackwater event- These events would reduce the visual amenity and pose a potential health risk, restricting access to these waters for the duration of the event.Uncertainty: Drivers not present as identified by local experts and land use maps (Qld Globe) - data supports this conclusion (N=154); Risks to secondary and visual recreation assessed by the impact of indirect outcomes as no guideline exists.

LM577


environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Linked to sediment; Drivers present: Grazing and Cattle feedlots throughout; Mine, STP and effluent disposal facilities - beneficial use (biosolids, CSG water) for irrigation, camps- occurring broad-scale across region. Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills; Stimulation of algal growth.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM578



Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Unlikely; Linked to nutrients as described above; Issue is within the trunk Upper Balonne River rather than tributaries. Consequence: Moderate impact on community resource; harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- Blooms are relatively easy to treat in raw water, once the species of bloom is known.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM579


environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Linked to nutrients as described above; Issue is within the trunk Upper Balonne River rather than tributaries. Consequence: Minimal individual financial loss.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM580



environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Drivers present: Linked to Nutrients, Issue is within the trunk of Upper Balonne River rather than tributaries, Grazing and Cattle feedlots throughout; Mine, STP and effluent disposal facilities - beneficial use (biosolids, CSG water) for irrigation, camps- occurring broad-scale across region. GSG and mining are regulated activities. Impacts are regulated, managed and minimised through the Environmental Authority and Devlopment Application process. Consequence: Significant individual financial impact- harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- documented cases of livestock fatalities following exposure - Not an issue for irrigation waters.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.




LM581




Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Drivers present: Linked to Nutrients, Issue is within the trunk of Upper Balonne River rather than tributaries, Grazing and Cattle feedlots throughout; Mine, STP and effluent disposal facilities - beneficial use (biosolids, CSG water) for irrigation, camps- occurring broad-scale across region. CSG and mining are regulated activities. Impacts are regulated, managed and minimised through the Environmental Authority and Devlopment Application process. Consequence: Moderate impact on community resource, recreation values and amenity; Harmful effects on tissues, cells or organisms; Depending on toxin, potentially lethal at high doses (NHMRC, 2008).Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (N=240).

LM582


environmental value








Likelihood: Linked to sediment; Drivers present: Grazing and Cattle feedlots throughout; Mine, STP and effluent disposal facilities - beneficial use (biosolids, CSG water) for irrigation, camps- occurring broad-scale across region. CSG and mining are regulated activities. Impacts are regulated, managed and minimised through the Environmental Authority and Devlopment Application process. Consequence: Minor financial loss as low prevalence of aquaculture in catchment; Fish kills; Stimulation of algal growth.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM583



environmental value








Likelihood: Statistical analysis shows exceedance of Basin Plan B1 Target application zone guideline for Total Phosphorous & Total Nitrogen is rare; Linked to sediment; Drivers present: Grazing and Cattle feedlots throughout; Mine, STP and effluent disposal facilities - beneficial use (biosolids, CSG water) for irrigation, camps- occurring broad-scale across region. CSG and mining are regulated acivities. Impacts are regulated, managed and minimised through Environmetal Authority and Development Application rpocesses.Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations; Aquatic biota susceptible, mass fatalities may occur.Uncertainty: Medium as drivers are very prevalent as identified by local experts and land use maps (Qld Globe). This is contradicted by the statistical analysis which is perhaps reflective of the high concentration of the guideline value.

LM584










Likelihood: Linked to sediment; Drivers present: Grazing and Cattle feedlots throughout; Mine, STP and effluent disposal facilities - beneficial use (biosolids, CSG water) for irrigation, camps- occurring broad-scale across region. CSG and mining are regulated acivities. Impacts are regulated, managed and minimised through Environmetal Authority and Development Application rpocesses.Consequence: Moderate impact to community resource as although raw water will go for treatment prior to consumption, some nutrients can reduce the effectiveness of disinfection; Human health risk; Stimulation of algal growth; Of particular issue for consumers of bore/ground water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM585


environmental value







Upper Balonne Surface Water Rare Minor Low Low

Likelihood: Expert knowledge considered exceedance of industry use guideline as rare; Drivers present however industry water use can tolerate concentrations of nutrients that would pose risk for other uses of water: Grazing and Cattle feedlots throughout; Mine, STP and effluent disposal facilities - beneficial use (biosolids, CSG water) for irrigation, camps- occurring broad-scale across region; Linked to sediment.Consequence: Minor financial losses; Lower as industry isn't a major land use- localised effects only.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN: N=243 & TP: N=490).




LM586



environmental value







Upper Balonne Surface Water Rare Moderate Low Low

Likelihood: Statistical analysis shows exceedance of ANZG Irrigation guideline for Total Phosphorous and Total Nitrogen as rare; Linked to sediment; Drivers present: Grazing and Cattle feedlots throughout; Mine, STP and effluent disposal facilities - beneficial use (biosolids, CSG water) for irrigation, camps- occurring broad-scale across region. CSG and mining are regulated acivities. Impacts are regulated, managed and minimised through Environmetal Authority and Development Application rpocesses.Consequence: Significant financial loss; Stimulation of algal growth in stock water; Poisoning, which can result in loss of productivity or death; Irrigation water containing nutrients is beneficial for plants; Stimulation of algal growth; Predominantly grazing, with some dryland production and minor irrigated production- widespread impacts.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN: N=243 & TP: N=490).

LM587


environmental value

Elevated levels of


contaminants







Likelihood: CSG & Coal mining and STP drivers are present to impact water quality. CSG and mining are regulated activities. Thus impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Cumulative impacts of BTEX chemicals, pesticides, heavy metals etc. Note detection of specifically heavy metals vs triggers. Consequence: Minor financial loss as low prevalence of aquaculture in catchment.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM588



environmental value

Elevated levels of


contaminants







Likelihood: CSG & Coal mining and STP drivers are present to impact water quality. CSG and mining are regulated activities. Thus impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Cumulative impacts of BTEX chemicals, pesticides, heavy metals etc. Note detection of specifically heavy metals vs triggers. Consequence: Moderate impacts on aquatic ecosystem.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM589



Elevated levels of


contaminants






Upper Balonne Surface Water Rare Major Low Medium

Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Low potential for mine drainage; CSG & Coal mining and STP drivers are present to impact water quality.CSG and mining are regulated activities. Thus impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Cumulative impacts of BTEX chemicals, pesticides, heavy metals etc. Note detection of specifically heavy metals vs triggers. Consequence: Major impact to community resource as pesticides and other contaminants are not easily detected and are expensive to treat; Human health impacts.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM590


environmental value

Elevated levels of


contaminants







Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: CSG & Coal mining and STP drivers are present to impact water quality. CSG and mining are regulated activities. Thus impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Cumulative impacts of BTEX chemicals, pesticides, heavy metals etc. Note detection of specifically heavy metals vs triggers. Consequence: Minor financial impact; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) show drivers present but no data to support.

LM591



environmental value

Elevated levels of


contaminants







Likelihood: CSG & Coal mining and STP drivers are present to impact water quality. CSG and mining are regulated activities. Thus impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Cumulative impacts of BTEX chemicals, pesticides, heavy metals etc. Note detection of specifically heavy metals vs triggers. Consequence: Moderate financial impacts; Animal health risk; Human health risk.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.




LM592




Elevated levels of


contaminants







Likelihood: CSG & Coal mining and STP drivers are present to impact water quality. CSG and mining are regulated activities. Thus impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Cumulative impacts of BTEX chemicals, pesticides, heavy metals etc. Note detection of specifically heavy metals vs triggers. Consequence: Moderate impact on recreation; Human health issue.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM593


environmental value







Likelihood: Statistical analysis of water quality data shows exceedance of ANZG freshwater Aquaculture guideline as rare; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG - technically regulated by EAs. Concentration of activity in this region - cumulative impact of this activity. CSG, multiple coal mines. Distributed across the area - more than just a localised impact. Assumption that compliance is met with EAs and DAs into the future; Risk of evaporation ponds failing (e.g. Columbia Creek); Developing new irrigation with process waste also producing a salinity risk; based on the assumption that through the management actions in development approvals (under SPA), Environmental Authorities, and the Environmental Protection Act that salinity impacts will be prevented into the future. Consequence: Moderate financial impact; Very low prevalence of aquaculture in UB: Productivity influenced (growth stunted by expending energy elsewhere); Fatalities in extreme conditions [ANZG 2000].Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data (N= 1085); Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM594



environmental value







Likelihood: Statistical analysis of water quality data shows exceedance of ANZG Aquatic ecosystems guideline is unlikely; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG - technically regulated by EAs. Concentration of activity in this region - cumulative impact of this activity. CSG, multiple coal mines. Distributed across the area - more than just a localised impact. Assumption that compliance is met with EAs and DAs into the future; Risk of evaporation ponds failing (e.g. Columbia Creek); Developing new irrigation with process waste also producing a salinity risk; based on the assumption that through the management actions in development approvals (under SPA), Environmental Authorities, and the Environmental Protection Act that salinity impacts will be prevented into the future. Consequence: Moderate impacts on aquatic ecosystem; Physiological responses; Death; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors; Behaviour modification; Altered microbial activity (decreases nutrient cycling, primary productivity, algal C food source decreased) [Q-Catchments, 2015.].Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data (N= 1085).

LM595









Likelihood: Local experts & data analysis supports the conclusion that it is unlikely salinity concentrations would be elevated to an extent that this water would be unsuitable for use; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG - technically regulated by EAs. Concentration of activity in this region - cumulative impact of this activity. CSG, multiple coal mines. Distributed across the area - more than just a localised impact. Assumption that compliance is met with EAs and DAs into the future; Risk of evaporation ponds failing (e.g. Columbia Creek); Developing new irrigation with process waste also producing a salinity risk; based on the assumption that through the management actions in development approvals (under SPA), Environmental Authorities, and the Environmental Protection Act that salinity impacts will be prevented into the future. Consequence: Moderate impact on community resource as saline water is difficult to treat; Aesthetic quality impacted (taste); Health impacts in extreme cases.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to compare data against.




LM596


environmental value






Upper Balonne Surface Water Unlikely Minor Low Low

Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG - technically regulated by EAs. Concentration of activity in this region - cumulative impact of this activity. CSG, multiple coal mines. Distributed across the area - more than just a localised impact. Assumption that compliance is met with EAs and DAs into the future; Risk of evaporation ponds failing (e.g. Columbia Creek); Developing new irrigation with process waste also producing a salinity risk; based on the assumption that through the management actions in development approvals (under SPA), Environmental Authorities, and the Environmental Protection Act that salinity impacts will be prevented into the future. Consequence: Minor financial impact; Influencing CSG/Coal in UB?; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM597



environmental value







Likelihood: Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG - technically regulated by EAs. Concentration of activity in this region - cumulative impact of this activity. CSG, multiple coal mines. Distributed across the area - more than just a localised impact. Assumption that compliance is met with EAs and DAs into the future; Risk of evaporation ponds failing (e.g. Columbia Creek); Developing new irrigation with process waste also producing a salinity risk; based on the assumption that through the management actions in development approvals (under SPA), Environmental Authorities, and the Environmental Protection Act that salinity impacts will be prevented into the future. Consequence: Greater risk to grazing & dryland production than irrigated production; Reduced plant productivity; Crop failure; Reduced livestock productivity; Salt poisoning resulting in death.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM598










Likelihood: Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG - technically regulated by EAs. Concentration of activity in this region - cumulative impact of this activity. CSG, multiple coal mines. Distributed across the area - more than just a localised impact. Assumption that compliance is met with EAs and DAs into the future; Risk of evaporation ponds failing (e.g. Columbia Creek); Developing new irrigation with process waste also producing a salinity risk; based on the assumption that through the management actions in development approvals (under SPA), Environmental Authorities, and the Environmental Protection Act that salinity impacts will be prevented into the future. Consequence: Primary - exposure to unsanitary water under extreme circumstance (i.e. decaying aquatic life); Secondary - Impacts of decaying aquatic life (eutrophication, exposure to pathogen etc.); Aesthetic - Salt crusts; dead aquatic life and resultant impacts (poor smell, upsetting etc.).Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.




LM599



environmental value






Upper BalonneSurface Water: Localised- Fairy Meadow Road

Possible Moderate Medium Low

Likelihood: Hotspots: DNRM Fairy Meadow Road monitoring project has detected bank seepage of saline groundwater into the river. The project used a worst case scenario approach, which assumed the underlying bedrock is impermeable. In reality, the bedrock is likely to have some permeability but it is highly variable spatially. (Crawford, M, Williams, K & Biggs, A, 2018; Salinity risk assessment of an irrigation development in the Condamine-Balonne catchment). Given the results of the project, the likelihood has increased to possible as a precautionary approach. Note: High intensity CSG surrounding Tara, Condamine, Miles, Surat and Roma; Discharge of reverse osmosis water to environment occurs here. Impacts from these regulated activities are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Thus, likelihood of negative impact is low.Consequence: Moderate impact on aquatic ecosystem; Relatively low ambient EC for these creeks 50th percentile = 190uS/cm; Exceedance of guideline can result in physiological responses: Loss of sensitive species; Decreases metabolism, feeding & reproduction; Susceptibility to other stressors; Behaviour modification; Altered microbial activity (decreases nutrient cycling, primary productivity, algal C food source decreased).Uncertainty: Low as DNRM data & reports provide quantitative evidence; Land use maps (Qld Globe) identify location of hotspots.

LM600



environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Infrastructure construction for the CSG and mining developments - will increase in the future due to expansion of these industries. Yuleba State Forest sand quarry discharge of water to creek under an existing DA. (Lot 2/SP197617 is freehold on Surat -Yuleba Rd). Other influences of sedimentation not anticipated. Consequence: Moderate impacts on aquatic ecosystem; Reduced light penetration; Naturally high turbidity - aside from Yuleba Creek which has clearer water.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM601



Elevated levels of

suspended matter.



Wave wash





Likelihood: Exceedance considered to be unlikely; Infrastructure construction for the CSG and mining developments - will increase in the future due to expansion of these industries. Yuleba State Forest sand quarry discharge of water to creek under an existing DA. (Lot 2/SP197617 is freehold on Surat -Yuleba Rd). Other influences of sedimentation not anticipated. Consequence: Minor impact to community resource as suspended solids are relatively easy and inexpensive to remove from raw water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM602


environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Infrastructure construction for the CSG and mining developments - will increase in the future due to expansion of these industries. Yuleba State Forest sand quarry discharge of water to creek under an existing DA. (Lot 2/SP197617 is freehold on Surat -Yuleba Rd). Other influences of sedimentation not anticipated. Consequence: Minor financial impact; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Low as drivers are present (land use) as identified by local experts & land use maps (Qld Globe) and data supports this.

LM603



environmental value

Elevated levels of

suspended matter.



Wave wash




Upper Balonne Surface Water Rare Minor Low Medium

Likelihood: Infrastructure construction for the CSG and mining developments - will increase in the future due to expansion of these industries. Yuleba State Forest sand quarry discharge of water to creek under an existing DA. (Lot 2/SP197617 is freehold on Surat -Yuleba Rd). Other influences of sedimentation not anticipated. Consequence: Minor financial impact; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) although no local guideline value to assess data against.




LM604




Elevated levels of

suspended matter.



Wave wash





Likelihood: Infrastructure construction for the CSG and mining developments - will increase in the future due to expansion of these industries. Yuleba State Forest sand quarry discharge of water to creek under an existing DA. (Lot 2/SP197617 is freehold on Surat -Yuleba Rd). Other influences of sedimentation not anticipated. Consequence: Minor financial impact; Visually displeasing; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM605


environmental value

Elevated pathogen

counts




aren't available.

Upper Balonne Surface Water Unlikely Moderate Low High

Likelihood: Expert local knowledge identified an exceedance of pathogen guidelines as possible; Drivers present: Disposal to land of treated effluent, Grazing, Irrigated & dryland cropping, hobby farmers; STP's (Tara/Miles); Linked to Sediments & Nutrients and likely population growth- Lacking E.coli monitoring data; Concern raised by expert panel that the current Roma STP is at or beyond capacity dealing with sewerage from increased town population and nearby Mine camps- Extreme events increase the likelihood of impact occurring due to overloaded system; Not currently sampling for E. coli or any pathogens instream. Roma's and Miles' STPs are regulated activities. Impacts are regulated, managed and minimised through Environmetal Authority and Development Application processes. Consequence: Significant financial loss and human health risk; Aquatic biota can develop physiological defects; Human health impacted by viruses caused by pathogen.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value and no data to support.

LM606



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Expert local knowledge identified an exceedance of pathogen guidelines as possible; Drivers present: Disposal to land of treated effluent; Irrigated & dryland cropping, hobby farmers; STP's (Tara/Miles); Linked to Sediments & Nutrients and likely population growth. Miles' STP is a regulated activity. Impacts are regulated, managed and minimised through Environmetal Authority and Development Application processes. Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Aquatic biota can develop physiological defects; Mass fatalities; Sensitive species most susceptible (sensitive life history or certain sensitive developmental stages).Uncertainty: High as drivers present but lacking E.coli or any pathogen monitoring data.

LM607



Elevated pathogen

counts




aren't available.

Upper Balonne Surface Water Possible Minor Low High

Likelihood: Drivers present: Disposal to land of treated effluent, Grazing, Irrigated & dryland cropping, hobby farmers; STP's (Tara/Miles); Linked to Sediments & Nutrients and likely population growth- Lacking E.coli monitoring data; Concern raised by expert panel that the current Roma STP is at or beyond capacity dealing with sewerage from increased town population and nearby Mine camps- Extreme events increase the likelihood of impact occurring due to overloaded system; Not currently sampling for E. coli or any pathogens instream. Roma's and Miles' STPs are regulated activities. Impacts are regulated, managed and minimised through Environmetal Authority and Development Application processes. Consequence: Minor impact to community resource as raw water will go for treatment prior to consumption; Human health impacted by viruses caused by pathogens.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value and no data to support.




LM608


environmental value

Elevated pathogen

counts




aren't available.

Upper Balonne Surface Water Unlikely Insignificant Low High

Likelihood: Expert local knowledge identified an exceedance of pathogen guidelines as unlikely; Drivers present but these are unlikely to exceed guideline value for industrial use: Disposal to land of treated effluent; Irrigated & dryland cropping, hobby farmers; STP's (Tara/Miles); Linked to Sediments & Nutrients and likely population growth- Lacking E.coli monitoring data; Concern raised by expert panel that the current Roma STP is at or beyond capacity dealing with sewerage from increased town population and nearby Mine camps- Extreme events increase the likelihood of impact occurring due to overloaded system; Not currently sampling for E. coli or any pathogens instream. Miles' STPs are regulated activities. Impacts are regulated, managed and minimised through Environmetal Authority and Development Application processes. Consequence: Minimal or no financial losses.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM609



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Drivers present: Disposal to land of treated effluent, Grazing, Irrigated & dryland cropping, hobby farmers; STP's (Tara/Miles); Linked to Sediments & Nutrients and likely population growth- Lacking E.coli monitoring data; Concern raised by expert panel that the current Roma STP is at or beyond capacity dealing with sewerage from increased town population and nearby Mine camps- Extreme events increase the likelihood of impact occurring due to overloaded system; Not currently sampling for E. coli or any pathogens instream. Miles' STPs are regulated activities. Impacts are regulated, managed and minimised through Environmetal Authority and Development Application processes. Consequence: Viruses caused by pathogens can cause miscarriage, neurological disorders & death in cattle & swine [1].Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM610




Elevated pathogen

counts




aren't available.


Likelihood: Disposal to land of treated effluent; Lacking E.coli monitoring data; Population growth; Not currently sampling for E. coli or any pathogens instream. Consequence: Moderate disturbance to recreation values and amenity; Human health impacted by viruses caused by pathogens.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM611


environmental value




Eutrophication



Upper Balonne Surface Water Rare Major Low Low

Likelihood: Low potential for acid mine drainage. Potential for alkalinity from CSG. Unknown whether there is a cumulative impact of mainly the dust suppression but other impacts as well. Consequence: Major financial impact; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data; Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM612



environmental value




Eutrophication




Likelihood: Low potential for acid mine drainage. Potential for alkalinity from CSG. Unknown whether there is a cumulative impact of mainly the dust suppression but other impacts as well. Consequence: Major impact on aquatic ecosystem; Consequence is localised and short lived; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.).Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM613






Eutrophication




Likelihood: Local experts & data analysis supports the conclusion that it is unlikely that pH would be outside natural ranges to an extent that this water would be unsuitable for use; Low potential for acid mine drainage. Potential for alkalinity from CSG. Unknown whether there is a cumulative impact of mainly the dust suppression but other impacts as well. Consequence: Minor impact to community resource as pH is easily & inexpensively corrected in the water treatment process; Human health impacts; Corrosion of pipes. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.




LM614


environmental value




Eutrophication




Likelihood: Low potential for acid mine drainage. Potential for alkalinity from CSG. Unknown whether there is a cumulative impact of mainly the dust suppression but other impacts as well. Consequence: Moderate financial impact; Corrosion of pipes.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM615



environmental value




Eutrophication



Upper Balonne Surface Water Rare Major Low Low

Likelihood: Low potential for acid mine drainage. Potential for alkalinity from CSG. Unknown whether there is a cumulative impact of mainly the dust suppression but other impacts as well. Consequence: Major financial loss; Corrosion of pipes; Health impacts to animals; Risks to crop health.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM616







Eutrophication




Likelihood: Low potential for acid mine drainage. Potential for alkalinity from CSG. Unknown whether there is a cumulative impact of mainly the dust suppression but other impacts as well. Consequence: Minor impact on recreation; Irritation to eyes, skin and mucous membranes; Gastrointestinal irritation; Irreversible damage to eyes.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

WM617


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Water temperature associated with Great Artesian Basin water leaking to Yuleba but this is localised. Consequence: Moderate financial impact; Thermal tolerance of species is known; Limits recruitment of species.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM618



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Water temperature from sand mine - Great Artesian Basin water leaking to Yuleba but this is localised. Consequence: Moderate impact on aquatic ecosystem; Know temperature will impact but not the extent of this impact; Thermal tolerance of these species monitoring required; Limits recruitment of species.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM619




natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Water temperature associated with Great Artesian Basin water leaking to Yuleba but this is localised. Consequence: Insignificant impacts on community resource as temperature impacts on water quality (e.g. elevated temperature promoting cyanobacteria colonies) will be treated prior to consumption.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM620


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Water temperature from sand mine; Great Artesian Basin water leaking to Yuleba but this is localised- addressed as a hotspot.Consequence: Minimal or no financial impacts.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.




WM621



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Water temperature from Great Artesian Basin water leaking to Yuleba but this is localised. Consequence: Minor impact on irrigation water; Cold water can stress crops.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM622





natural range




Reduced flow.



Upper Balonne Surface Water Rare Insignificant Low Low

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Development not expected - comments as per sediment; Water temperature from Great Artesian Basin water leaking to Yuleba but this is localised. Consequence: Minimal or no impact on community resource.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM623

Water being of a quality unsuitable for aquaculture and/or human consumers of aquatic foods environmental value




Eutrophication

Dissolved oxygen that is outside the range of local water quality guidelines for the flow condition at time of monitoring. Refer to ANZG if local water quality guidelines aren't available.

Upper Border Rivers Surface Water Rare Moderate Low Medium

Likelihood: Statistical analysis shows exceedance of Aquaculture guideline as rare. Drivers are present but addressed as hotspots separately: grazing, cropping and irrigated production with minor forestry. Development is not expected in the future.Consequence: There is potential for moderate individual financial loss, and oxygen availability is critical to species development and reproduction.Uncertainty: ANZG dissolved oxygen guideline for Aquatic ecosystem was used in lieu of an Aquaculture guideline - this guideline may be conservative. Drivers are present but identified by local experts as having localised risks only - data supports this conclusion (N=353).

WM624





Eutrophication


Upper Border Rivers Surface Water Rare Moderate Low Low

Likelihood: Statistical analysis shows exceedance of Aquatic guideline as rare. Drivers are present but addressed as hotspots separately: grazing, cropping and irrigated production with minor forestry. Development is not expected in the future.Consequence: There is potential for moderate impact on aquatic ecosystem - risk of eutrophication increased, and oxygen availability is critical to species diversity and habitat. There is potential for a blackwater event.Uncertainty: Drivers are present but identified by local experts as having localised risks only - data supports this conclusion (N=353).

WM625

Water being of a quality unsuitable for drinking water supply environmental value




Eutrophication



Likelihood: Drivers are present but addressed as hotspots separately: grazing, cropping and irrigated production with minor forestry. Development is not expected in the future.Consequence: There is potential for a moderate impact on community resource. Low dissolved oxygen can encourage transformation of compounds to others that may pose a health risk or be difficult to treat (WHO 2004, p215). Eutrophication risk is increased when dissolved oxygen is less than 80% saturation (NHMRC 2008) - poor taste is associated.Uncertainty: Drivers are localised as identified by local experts and land use maps (Queensland Globe), however no guideline exists to assess data against.

WM626

Water being of a quality unsuitable for industrial use environmental value




Eutrophication


Upper Border Rivers Surface Water Rare Insignificant Low Medium

Likelihood: Drivers are present but addressed as hotspots separately: grazing, cropping and irrigated production with minor forestry. Development is not expected in the future. As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: There is potential for minimal individual financial loss.Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present but identified by local experts as having localised risks only - data (mg/L) supports this conclusion (N=353).




WM627

Water being of a quality unsuitable for irrigation, stock watering and/or farm water supply environmental value




Eutrophication

Dissolved oxygen that is outside the range of local water quality guidelines for the flow condition at time of monitoring. Refer to ANZG if local water quality guidelines aren't available. Upper Border

Rivers Surface Water Rare Moderate Low Medium

Likelihood: Drivers are present but addressed as hotspots separately: grazing, cropping and irrigated production with minor forestry. Development is not expected in future. As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: There is potential for moderate individual financial loss. Low dissolved oxygen in irrigation water can be detrimental to plant health. Elevated dissolved oxygen can promote eutrophication which can be detrimental to stock health.Uncertainty: No guideline exists, however other more stringent guideline values are unlikely to be exceeded, thus a low risk is justified. Drivers present but identified by local experts as having localised risks only - data (mg/L) supports this conclusion (N=353).

WM628

Water being of a quality unsuitable for primary, secondary or visual recreation environmental value




Eutrophication


Upper Border Rivers Surface Water Rare Minor Low Medium

Likelihood: Statistical analysis shows exceedance of NHMRC Primary Recreation guideline (NHMRC 2008) as rare. Drivers are present but addressed as hotspots separately: grazing, cropping and irrigated production with minor forestry. Development is not expected in the future.Consequence: There is potential for minor impact on recreation values and amenity. Indirect outcomes of elevated/reduced dissolved oxygen may include increased risk of eutrophication, and potential for blackwater event. These events would reduce the visual amenity and pose a potential health risk, restricting access to these waters for the duration of the event.Uncertainty: Drivers are present but identified by local experts as having localised risks only - data supports this conclusion (N=353). However risks to secondary and visual recreation were assessed by the impact of indirect outcomes as no guideline exists.

LM629


environmental value

Elevated levels of

cyanobacteria.





aren't available.

Upper Border Rivers Surface Water Unlikely Minor Low Medium

Likelihood: Continuation of best practice in agriculture is required to keep risk low. Minimal development anticipated; Development not expected - comments as per sediment. Consequence: Low aquaculture in catchment; Algal blooms; Fish kills.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against

LM630



environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Statistical analysis shows exceedance of ANZG Aquatic ecosystems guideline for Chlorophyll-a is rare; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated.Consequence: Moderate impact on aquatic ecosystem- potential toxic effects on other algae, invertebrates and fish, impacts to plants and benthic algae depending on toxin; Potentially lethal at high doses (NHMRC, 2008); can trigger anoxic conditions.Uncertainty: Medium as local exerts identified a lack of drivers present, however Qld globe identified no data to validate this.

LM631



Elevated levels of

cyanobacteria.





aren't available.

Upper Border Rivers Surface Water Unlikely Moderate Low Medium

Likelihood: Unlikely; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Consequence: Moderate impact on community resource; harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- Blooms are relatively easy to treat in raw water, once the species of bloom is known.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM632


environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Continuation of best practice in agriculture is required to keep risk low. Minimal development anticipated. Consequence: Minimal individual financial loss.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.




LM633



environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated.Consequence: Moderate individual financial loss; Harmful effects on tissues, cells or organisms; Sheep often more susceptible than cattle; Poisoning upon ingestion- often results in death but severity dependent on toxin & age of bloom (NHMRC, 2008) - Not an issue for irrigation waters.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM634




Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipate; Hotspot: L5- Water storage at/downstream Glenlyon & Coolmunda: Glenn (DISITI) data, Recreation guideline exceeded every year.Consequence: Moderate impact on community resource, recreation values and amenity; Harmful effects on tissues, cells or organisms; Depending on toxin, potentially lethal at high doses (NHMRC, 2008).Uncertainty: Low data sample size (N=10).

LM635


environmental value








Likelihood: Continuation of best practice in agriculture is required to keep risk low. Minimal development anticipated; Development not expected - comments as per sediment. Consequence: Minor financial impact as low aquaculture in catchment; Algal blooms; Fish kills.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM636



environmental value







Upper Border Rivers Surface Water Unlikely Moderate Low Low

Likelihood: Statistical analysis shows ANZG Aquatic ecosystems guideline for Total Phosphorous and Total Nitrogen as unlikely to be exceeded; Drivers present: grazing, cropping and irrigated production with minor forestry; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Development not expected - comments as per sediment.Consequence: Moderate spatial & temporal impact on aquatic ecosystems; Increases risk of eutrophication & associated DO fluctuations; Aquatic biota susceptible, mass fatalities may occur.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) appear to be addressed by BMP- this is supported by the data (TN: N=1337 & TP: N=1369).

LM637










Likelihood: Drivers present: grazing, cropping and irrigated production with minor forestry; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Development not expected - comments as per sediment.Consequence: Moderate impact to community resource as although raw water will go for treatment prior to consumption, some nutrients can reduce the effectiveness of disinfection; Human health risk; Stimulation of algal growth; Of particular issue for consumers of bore/ground water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM638


environmental value







Upper Border Rivers Surface Water Rare Minor Low Low

Likelihood: Expert knowledge considered exceedance of industry use guideline as rare; Drivers present however industry water use can tolerate concentrations of nutrients that would pose risk for other uses of water: grazing, cropping and irrigated production with minor forestry; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Development not expected - comments as per sediment.Consequence: Minor financial losses; Lower as industry isn't a major land use- localised effects only.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) appear to be addressed by BMP- this is supported by the data (TN: N=1337 & TP: N=1369).




LM639



environmental value








Likelihood: Statistical analysis shows exceedance of ANZG Irrigation guideline for Total Phosphorous and Total Nitrogen as rare; Drivers present: grazing, cropping and irrigated production with minor forestry; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Development not expected - comments as per sediment.Consequence: Significant financial loss; Stimulation of algal growth in stock water; Poisoning, which can result in loss of productivity or death; Irrigation water containing nutrients is beneficial for plants; Stimulation of algal growth; Poisoning, which can result in loss of productivity or death.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) appear to be addressed by BMP- this is supported by the data (TN: N=1337 & TP: N=1369).

LM640










Upper Border Rivers Surface Water Unlikely Minor Low Low

Likelihood: Statistical analysis shows NHMRC Recreation guideline for Total Phosphorous as unlikely to be exceeded; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Development not expected - comments as per sediment.Consequence: Minor impact on community resource, recreation values and amenity; Increases risk of eutrophication & related aesthetic impacts (smells); Fish kills.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) appear to be addressed by BMP- this is supported by the data (TN: N=1337 & TP: N=1369).

LM641


environmental value

Elevated levels of


contaminants







Likelihood: Localised drivers present: Heavy metals- Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012). Consequence: Minor financial impact as low aquaculture in catchment.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.

LM642



environmental value

Elevated levels of


contaminants







Likelihood: Unlikely; Localised drivers present: Heavy metals- Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012). Consequence: Moderate impacts on aquatic ecosystem.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM643



environmental value

Elevated levels of


contaminants






Upper Border Rivers


Abandoned mines

throughout Traprock

Rare Major Low Medium

Likelihood: Hotspot: Silver Spur near Texas- managed through Qld Government Abandoned Mines framework but should still be noted.Consequence: Major spatial and temporal impacts on aquatic ecosystem; Physiological responses; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors.Uncertainty: Medium as isn't supported by data- Based on local knowledge and presence of drivers.

LM644



Elevated levels of


contaminants






Upper Border Rivers Surface Water Rare Major Low Medium

Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Silver Spur near Texas - heavy metals; Hotspot addressed under risk to aquatic ecosystems; Predominantly grazing and cropping and irrigated production.Consequence: Major impact to community resource as pesticides and other contaminants are not easily detected and are expensive to treat; Human health impacts.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.




LM645


environmental value

Elevated levels of


contaminants







Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Heavy metals- Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012).Consequence: Moderate financial impact; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) show drivers present but no data to support.

LM646



environmental value

Elevated levels of


contaminants







Likelihood: Unlikely; Localised drivers present: Heavy metals- Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012). Consequence: Moderate financial impacts; Animal health risk; Human health risk.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM647




Elevated levels of


contaminants







Likelihood: Unlikely; Localised drivers present: Heavy metals- Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012). Consequence: Moderate impact on recreation; Human health issue.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM648


environmental value







Likelihood: Statistical analysis of water quality data shows exceedance of ANZG freshwater Aquaculture guideline as rare; Low prevalence of aquaculture land use; Rapidly rising groundwater which would translate to surface water EC 50000; Minor risk of discharge from abandoned silver mine in the catchment as site is regulated by EHP (Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012); Salt flux in upper border will go up and down in climatic extremes, salt out of the traprock in the wet.Consequence: Moderate financial impact; Productivity influenced (growth stunted by

LM649



environmental value







Likelihood: Statistical analysis of water quality data shows exceedance of ANZG Aquatic ecosystems guideline is unlikely; Rapidly rising groundwater which would translate to surface water EC 50000; Minor risk of discharge from abandoned silver mine in the catchment as site is regulated by EHP (Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012); Salt flux in upper border will go up and down in climatic extremes, salt out of the traprock in the wet.Consequence: Moderate impacts on aquatic ecosystem; Physiological responses; Death; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors; Behaviour modification; Altered microbial activity (decreases nutrient




LM650









Likelihood: Local experts & data analysis supports the conclusion that it is unlikely salinity concentrations would be elevated to an extent that this water would be unsuitable for use; Rapidly rising groundwater which would translate to surface water EC 50000; Minor risk of discharge from abandoned silver mine in the catchment as site is regulated by EHP (Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012); Salt flux in upper border will go up and down in climatic extremes, salt out of the traprock in the wet.Consequence: Moderate impact on community resource as saline water is difficult to treat; Aesthetic quality impacted (taste); Health impacts in extreme cases.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to compare data against.

LM651


environmental value







Likelihood: Small proportion of industrial land use in risk assessment area; Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Rapidly rising groundwater which would translate to surface water EC 50000; Minor risk of discharge from abandoned silver mine in the catchment as site is regulated by EHP (Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012); Salt flux in upper border will go up and down in climatic extremes, salt out of the traprock in the wet.Consequence: Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM652



environmental value







Likelihood: Rapidly rising groundwater which would translate to surface water EC 50000; Minor risk of discharge from abandoned silver mine in the catchment as site is regulated by EHP (Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012); Salt flux in upper border will go up and down in climatic extremes, salt out of the traprock in the wet.Consequence: Moderate financial impact; Reduced plant productivity; Crop failure; Reduced livestock productivity; Salt poisoning resulting in death.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM653










Likelihood: Rapidly rising groundwater which would translate to surface water EC 50000; Minor risk of discharge from abandoned silver mine in the catchment as site is regulated by EHP (Silver Spur near Texas - Twin Hills / Mount Gunyan - Alcyone Resources Ltd (Silver, Gold, Lead and Zinc DNRM December 2012); Salt flux in upper border will go up and down in climatic extremes, salt out of the traprock in the wet.Consequence: Primary - exposure to unsanitary water under extreme circumstance (i.e. decaying aquatic life); salinity influences the activation of viruses [NHMRC- Guidelines for managing risks in Rec water]; Secondary - Impacts of decaying aquatic life (eutrophication, exposure to pathogen etc.); Aesthetic - Salt crusts; dead aquatic life and resultant impacts

LM654


environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas. Consequence: Minor financial impact as low aquaculture in catchment; Reduced light penetration; Physiological damage; Smothering.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) and this is supported by the data.




LM655



environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Rare; Continuation of best practice in agriculture is required to keep risk low. Minimal development anticipated. Less infrastructure construction for the mining development. Unknown risk of it being mobilised. Unregulated levee banks causing erosion in the floodplain areas.Consequence: Moderate impacts on aquatic ecosystem; Reduced light penetration.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM656



Elevated levels of

suspended matter.



Wave wash





Likelihood: Exceedance considered to be unlikely; Continuation of best practice in agriculture is required to keep risk low. Minimal development anticipated. Less infrastructure construction for the mining development. Unknown risk of it being mobilised. Unregulated levee banks causing erosion in the floodplain areas; Town water treated before consumption.Consequence: Minor impact to community resource as suspended solids are relatively easy and inexpensive to remove from raw water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM657


environmental value

Elevated levels of

suspended matter.


Poor water management practices including rapid drawdown of surface water from a water resource and release of water resulting in riverbank erosion





Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas.Consequence: Minor financial impact; Unable to operate business resulting in loss of business, reduced employment capacity; Low prevalence of industrial land use.Uncertainty: Low as drivers are present (land use) as identified by local experts & land use maps (Qld Globe) and data supports this.

LM658



environmental value

Elevated levels of

suspended matter.






Upper Border Rivers Surface Water Rare Minor Low Medium

Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas.Consequence: Minor financial impact; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) although no local guideline value to assess data against.

LM659




Elevated levels of

suspended matter.



Wave wash





Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated. Less infrastructure construction for the mining development; Unknown risk of it being mobilised; Unregulated levee banks causing erosion in the floodplain areas. Consequence: Minor financial impact; Visually displeasing; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM660


environmental value

Elevated pathogen

counts




aren't available.

Upper Border Rivers Surface Water Rare Moderate Low High

Likelihood: Exceedance of Aquaculture and Human Consumers of Aquatic Foods guideline is considered rare; No drivers present: Continuation of best practice in agriculture is required to keep risk low, Minimal development anticipated, Potential for increased impacts from expanding ecotourism/ winery tourism through unsewered effluent.Consequence: Significant financial loss and human health risk; Aquatic biota can develop physiological defects; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe), no known guideline value and no data to support.




LM661



environmental value

Elevated pathogen

counts




aren't available.

Upper Border Rivers Surface Water Unlikely Moderate Low High

Likelihood: Exceedance of Aquaculture and Human Consumers of Aquatic Foods guideline is rare; Drivers present: grazing, cropping and irrigated production with minor forestry; Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated, Potential for increased impacts from expanding ecotourism/ winery tourism through unsewered effluent; Not currently sampling for E. coli or any pathogens instream. Consequence: Moderate impact on ecosystem; Aquatic biota can develop physiological defects; Mass fatalities; Sensitive species most susceptible (sensitive life history or certain sensitive developmental stages).Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM662



Elevated pathogen

counts




aren't available.

Upper Border Rivers Surface Water Unlikely Minor Low High

Likelihood: Drivers present: grazing, cropping and irrigated production with minor forestry; Continuation of best practice in agriculture is required to keep risk low, Minimal development anticipated, Potential for increased impacts from expanding ecotourism/ winery tourism through unsewered effluent; Not currently sampling for E. coli or any pathogens instream. Consequence: Minor impact to community resource as raw water will go for treatment prior to consumption; Human health impacted by viruses caused by pathogens.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value and no data to support.

LM663


environmental value

Elevated pathogen

counts




aren't available.

Upper Border Rivers Surface Water Rare Insignificant Low High

Likelihood: Continuation of best practice in agriculture is required to keep risk low; Minimal development anticipated; Potential for increased impacts from expanding ecotourism/ winery tourism through unsewered effluent as per Traprock SW & GW or Upper Condamine; Not currently sampling for E. coli or any pathogens instream; Other development not predicted. Consequence: Minimal or no financial losses.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM664



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Continuation of best practice in agriculture is required to keep risk low. Minimal development anticipated; Is there potential for increased impacts form expanding ecotourism/ winery tourism through unsewered effluent; Not currently sampling for E. coli or any pathogens instream. Consequence: Significant financial loss; Viruses caused by pathogens can cause miscarriage, neurological disorders & death in cattle & swine. Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM665




Elevated pathogen

counts




aren't available.


Likelihood: No drivers present: Continuation of best practice in agriculture is required to keep risk low, Minimal development anticipated, Potential for increased impacts from expanding ecotourism/ winery tourism through unsewered effluent; Not currently sampling for E. coli or any pathogens instream. Consequence: Moderate disturbance to recreation values and amenity; Human health impacted by viruses caused by pathogens.Uncertainty: High as no drivers identified by local experts & land use maps (Qld Globe) but no data to support.




LM666


environmental value




Eutrophication



Upper Border Rivers Surface Water Rare Major Low Low

Likelihood: Traprock - Some localised metalliferous areas unknown GW issues. - may have acidic leachate; Rapidly rising groundwater which would translate to surface water pH 4. Consequence: Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data; Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM667



environmental value




Eutrophication




Likelihood: Traprock - Some localised metalliferous areas unknown GW issues. - may have acidic leachate; Rapidly rising groundwater which would translate to surface water pH 4; [MURRAY-DARLING BASIN AUTHORITY, Acid sulphate soils in the Murray–Darling Basin, 2011] Field evidence in broad acre irrigated lands in the Lower Border Rivers, Lower Moonie, Lower Balonne and Lower Warrego floodplains suggests the development of modern acid sulphate soil related materials can occur in sumps, storages and channels, particularly in areas of gypseous clays.Consequence: Major impact on aquatic ecosystem; Consequence is localised and short lived; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.).Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM668



environmental value







aren't available.

Upper Border Rivers


Traprock regionRare Moderate Low Low

Likelihood: Statistical analysis of data shows occurrence of pH exceedance is rare- occurred <15%. Potential hotspots: Traprock - Some localised metalliferous areas, unknown GW issues - may have acidic leachate; Rapidly rising groundwater which would translate to surface water pH 4; Alkalinity is sufficient to buffer pH change.Consequence: pH: 50th percentile = 7.7 Alkalinity: 50th percentile = 88mg/L; Major spatial & temporal impact on aquatic ecosystems; Influences toxicity of other parameters (heavy metals, ammonia etc.). Uncertainty: Low as data is reliable sample size (N=3237); Hotspots identified during

LM669






Eutrophication




Likelihood: Local experts & data analysis supports the conclusion that it is unlikely that pH would be outside natural ranges to an extent that this water would be unsuitable for use; Traprock - Some localised metalliferous areas unknown GW issues. - may have acidic leachate; Rapidly rising groundwater which would translate to surface water pH 4. Consequence: Minor impact to community resource as pH is easily & inexpensively corrected in the water treatment process; Human health impacts; Corrosion of pipes. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM670


environmental value




Eutrophication




Likelihood: Traprock - Some localised metalliferous areas unknown GW issues. - may have acidic leachate; Rapidly rising groundwater which would translate to surface water pH 4. Consequence: Moderate financial impact; Corrosion of pipes. Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM671



environmental value




Eutrophication




Likelihood: Traprock - Some localised metalliferous areas unknown GW issues. - may have acidic leachate; Rapidly rising groundwater which would translate to surface water pH 4. Consequence: Major financial loss; Corrosion of pipes; Health impacts to animals; Risks to crop health.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.




LM672







Eutrophication




Likelihood: Traprock - Some localised metalliferous areas unknown GW issues. - may have acidic leachate; Rapidly rising groundwater which would translate to surface water pH 4. Consequence: Minor impact on recreation; Irritation to eyes, skin and mucous membranes; Gastrointestinal irritation; Irreversible damage to eyes.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

WM673

Water being of a quality unsuitable for aquaculture and/or human consumers of aquatic foods environmental value

Water temperature outside of natural range




Reduced flow.



Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use. Development is not expected - comments as per sediment.Consequence: There is potential for moderate financial impact. Thermal tolerance of the species is known, and potential limits to recruitment of species.Uncertainty: Localised drivers were identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM674






Reduced flow.



Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Releases from Glenlyon Dam are known to have a cold water plume -This needs to be flagged as a management issue - address out of session Paul Webb reports are available; Development not expected - comments as per sediment.Consequence: There is potential for moderate impact on aquatic ecosystem. We know temperature will impact but not the extent of this impact. Monitoring is required of the thermal tolerance of these species. There is potential to limit recruitment of species. High temperature reduces dissolved oxygen, which effects reproduction and respiration rate, increases susceptibility to disease and alters food availability.Uncertainty: Localised drivers were identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM675

Water being of a quality unsuitable for drinking water supply environmental value





Reduced flow.



Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use. Development is not expected - comments as per sediment. Releases from Glenlyon Dam are known to have a cold water plume (DNRM 2017).Consequence: Insignificant impacts on community resource may occur, as temperature impacts on water quality (e.g. elevated temperature promoting cyanobacteria colonies) will be treated prior to consumption.Uncertainty: Drivers were identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM676

Water being of a quality unsuitable for industrial use environmental value





Reduced flow.



Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use. Development is not expected - comments as per sediment.Consequence: Minimal or no financial impacts may occur.Uncertainty: Drivers were identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM677

Water being of a quality unsuitable for irrigation, stock watering and/or farm water supply environmental value





Reduced flow.



Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Development not expected - comments as per sediment.Consequence: Minor impact on irrigation water may occur. Cold water can stress crops.Uncertainty: Drivers were identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.




WM678

Water being of a quality unsuitable for primary, secondary or visual recreation environmental value





Reduced flow.


Upper Border Rivers Surface Water Rare Insignificant Low Low

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use. Development is not expected - comments as per sediment.Consequence: Minimal or no impact on community resource may occur.Uncertainty: Localised drivers were identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM679


environmental value

Dissolved oxygen




Eutrophication



Upper Moonie Surface Water Rare Moderate Low High

Likelihood: Lack of drivers; No data available.Consequence: Moderate individual financial loss; Oxygen availability critical to species development and reproduction.Uncertainty: ANZG dissolved oxygen guideline for Aquatic ecosystem was used in lieu of an Aquaculture guideline - this guideline may be conservative. Drivers not present as identified by local experts; data is not available.

WM680



environmental value

Dissolved oxygen




Eutrophication



Upper Moonie Surface Water Rare Moderate Low Medium

Likelihood: Lack of drivers; No data.Consequence: Moderate impact on aquatic ecosystem - Risk of eutrophication increased, oxygen availability critical to species diversity and habitat. Potential for blackwater event.Uncertainty: Lack of drivers identified by local experts and land use maps (Queensland Globe) but data is not available.

WM681



Dissolved oxygen




Eutrophication



Upper Moonie Surface Water Rare Moderate Low Medium

Likelihood: Lack of drivers; No data.Consequence: Moderate impact on community resource; Low dissolved oxygen can encourage transformation of compounds to others that may pose a health risk or be difficult to treat (WHO 2004, p215); Eutrophication risk increased when dissolved oxygen is less than 80% saturation (NHMRC 2008) - poor taste associated.Uncertainty: No drivers present as identified by local experts and land use maps (Queensland Globe), however no guideline exists to assess against and data is not available.

WM682


environmental value

Dissolved oxygen




Eutrophication



Upper Moonie Surface Water Rare Insignificant Low High

Likelihood: Lack of drivers; No data; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Minimal individual financial loss.Uncertainty: No guideline exists. Drivers present but identified by local experts as having localised risks only - no data available to validate this.

WM683



environmental value

Dissolved oxygen




Eutrophication



Upper Moonie Surface Water Rare Moderate Low High

Likelihood: Lack of drivers; No data available; As no guideline value exists, likelihood is determined by the likelihood of other more stringent guideline values.Consequence: Moderate individual financial loss; Low dissolved oxygen in irrigation water can be detrimental to plant health; Elevated dissolved oxygen can promote eutrophication which can be detrimental to stock health.Uncertainty: No guideline exists. Drivers present but identified by local experts as having localised risks only - no data available to validate this.

WM684




Dissolved oxygen




Eutrophication



Upper Moonie Surface Water Unlikely Minor Low Medium

Likelihood: Lack of drivers; No data available.Consequence: Minor impact on recreation values and amenity; Indirect outcome of elevated/reduced dissolved oxygen: Risk of eutrophication increased, Potential for blackwater event - These events would reduce the visual amenity and pose a potential health risk, restricting access to these waters for the duration of the event.Uncertainty: Drivers not present as identified by local experts; data is not available. Risks to secondary and visual recreation assessed by the impact of indirect outcomes as no guideline exists.

LM685


environmental value

Elevated levels of

cyanobacteria.





aren't available.

Upper Moonie Surface Water Possible Insignificant Low Medium

Likelihood: STP and effluent disposal facilities - biosolids usage on farms from temp housing for mining development (Mine camps). Risk due to the intensity of this occurring in the Region. Consequence: Minimal or no financial loss as no aquaculture in catchment. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value to assess against.




LM686



environmental value

Elevated levels of

cyanobacteria.





aren't available.

Upper Moonie Surface Water Unlikely Moderate Low Medium

Likelihood: Statistical analysis shows ANZG Aquatic ecosystems guideline for Chlorophyll-a is almost certain to be exceeded, this has been reduced to unlikely due to the low data sample size and to reflect local expert knowledge; Linked to nutrients as described above; Issue is within the trunk Upper Balonne River rather than tributaries.Consequence: Moderate impact on aquatic ecosystem- potential toxic effects on other algae, invertebrates and fish, impacts to plants and benthic algae depending on toxin; Potentially lethal at high doses (NHMRC, 2008); can trigger anoxic conditions.Uncertainty: Medium as very low sample size and local expert knowledge didn't identify this as likely (N=7).

LM687



Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Unlikely.Consequence: Moderate impact on community resource; harmful effects on tissues, cells or organisms; Mammals: liver, nerve axons and synapses, skin and gastrointestinal tract affected depending on toxin; Potentially lethal at high doses (NHMRC, 2008)- Blooms are relatively easy to treat in raw water, once the species of bloom is known.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM688


environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Unlikely.Consequence: Minimal individual financial loss.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM689



environmental value

Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Unlikely.Consequence: Significant individual financial impact; Harmful effects on tissues, cells or organisms; Sheep often more susceptible than cattle; Poisoning upon ingestion- often results in death but severity dependent on toxin & age of bloom (NHMRC, 2008) - Not an issue for irrigation waters.Uncertainty: Medium as although drivers are present (nutrients, sediments & land use) as identified by local experts & land use maps (Qld Globe)- no data to validate this.

LM690




Elevated levels of

cyanobacteria.





aren't available.


Likelihood: Statistical analysis shows NHMRC Primary Recreation guideline almost certain to be exceeded- data exceeded guideline value >85% of the time; Hotspots: Moonie River @ Flinton (this is the only site with data); Linked to sediment & nutrients- expert knowledge identified a lack of drivers.Consequence: Moderate impact on community resource, recreation values and amenity; Harmful effects on tissues, cells or organisms; Depending on toxin, potentially lethal at high doses (NHMRC, 2008).Uncertainty: High uncertainty as low sample size (N=7) and local knowledge isn't supported by data; Exceedance of guideline is based on using chlorophyll-a as a surrogate for cyanobacteria (Microcystins).

LM691


environmental value







Upper Moonie Surface Water Rare Insignificant Low Low

Likelihood: STP and effluent disposal facilities - biosolids usage on farms from temp housing for mining development (Mine camps). Risk due to the intensity of this occurring in the Region. Consequence: Minimal or no financial loss as no aquaculture in catchment.Uncertainty: Low as aquaculture isn't present in this catchment as identified by local experts & land use maps (Qld Globe).




LM692









Upper Moonie Surface Water Unlikely Moderate Low High

Likelihood: Disposal to land of treated effluent- biosolids, not in large enough volume to increase likelihood of guideline exceedance- beneficial use is a regulated activity, thus risk associated with beneficial use are assumed to be mitigated. Consequence: Moderate impact to community resource as although raw water will go for treatment prior to consumption, some nutrients can reduce the effectiveness of disinfection; Human health risk; Stimulation of algal growth; Of particular issue for consumers of bore/ground water.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.

LM693


environmental value







Upper Moonie Surface Water Rare Minor Low Low

Likelihood: Expert knowledge considered exceedance of industry use guideline as rare; Drivers present however industry water use can tolerate concentrations of nutrients that would pose risk for other uses of water: STP and effluent disposal facilities - biosolids usage on farms from temp housing for mining development (Mine camps). Risk due to the intensity of this occurring in the Region. Consequence: Minor financial losses; Lower as industry isn't a major land use- localised effects only.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN: N=317 & TP: N=882).

LM694



environmental value







Upper Moonie Surface Water Rare Moderate Low Low

Likelihood: Statistical analysis shows exceedance of ANZG Irrigation guideline for Total Phosphorous and Total Nitrogen as rare; STP and effluent disposal facilities - biosolids usage on farms from temp housing for mining development (Mine camps). Risk due to the intensity of this occurring in the Region. Consequence: Significant financial loss; Stimulation of algal growth in stock water; Poisoning, which can result in loss of productivity or death; Irrigation water containing nutrients is beneficial for plants; Stimulation of algal growth.Uncertainty: Low as drivers identified by local experts & land use maps (Qld Globe) support the data (TN: N=317 & TP: N=882).

LM695


environmental value

Elevated levels of


contaminants







Likelihood: STP and effluent disposal facilities - biosolids usage on farms from temp housing for mining development (Mine camps). Risk due to the intensity of this occurring in the Region. Consequence: Minimal or no financial loss as no aquaculture in catchment. Uncertainty: Low as aquaculture isn't present in this catchment as identified by local experts & land use maps (Qld Globe).

LM696



environmental value

Elevated levels of


contaminants







Likelihood: Local experts support the conclusion that it is unlikely that pesticides would be elevated to an extent that this water would be unsuitable for use; Low potential for mine drainage; CSG & Coal mining and STP drivers are present to impact water quality.CSG and mining are regulated activities. Thus impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Cumulative impacts of BTEX chemicals, pesticides, heavy metals etc. Note detection of specifically heavy metals vs triggers. Consequence: Moderate impacts on aquatic ecosystem.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM697



Elevated levels of


contaminants






Upper Moonie Surface Water Rare Major Low Medium

Likelihood: Local experts support the conclusion that it is rare that pesticides would be elevated to an extent that this water would be unsuitable for use; Low potential for mine drainage; CSG & Coal mining and STP drivers are present to impact water quality. CSG and mining are regulated activities. Thus impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Cumulative impacts of BTEX chemicals, pesticides, heavy metals etc. Note detection of specifically heavy metals vs triggers. Consequence: Major impact to community resource as pesticides and other contaminants are not easily detected and are expensive to treat; Human health impacts. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.




LM698


environmental value

Elevated levels of


contaminants







Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: CSG & Coal mining and STP drivers are present to impact water quality. CSG and mining are regulated activities. Thus impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Cumulative impacts of BTEX chemicals, pesticides, heavy metals etc. Note detection of specifically heavy metals vs triggers. Consequence: Minor financial impact; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) show drivers present but no data to support.

LM699



environmental value

Elevated levels of


contaminants







Likelihood: Local experts support the conclusion that it is unlikely that pesticides would be elevated to an extent that this water would be unsuitable for use; Low potential for mine drainage; CSG & Coal mining and STP drivers are present to impact water quality. CSG and mining are regulated activities. Thus impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Cumulative impacts of BTEX chemicals, pesticides, heavy metals etc. Note detection of specifically heavy metals vs triggers. Consequence: Moderate financial impacts; Animal health risk; Human health risk.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM700




Elevated levels of


contaminants







Likelihood: Local experts support the conclusion that it is unlikely that pesticides would be elevated to an extent that this water would be unsuitable for use; Low potential for mine drainage; CSG & Coal mining and STP drivers are present to impact water quality. CSG and mining are regulated activities. Thus impacts are regulated, managed and minimised through the Development Application and Environmental Authority approval process. Cumulative impacts of BTEX chemicals, pesticides, heavy metals etc. Note detection of specifically heavy metals vs triggers. Consequence: Moderate impact on recreation; Human health issue.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value or data to support.

LM701


environmental value







Likelihood: No aquaculture in UM; If development were to occur, statistical analysis of water quality data shows exceedance of ANZG freshwater Aquaculture guideline as rare; Drivers present: Predominantly grazing & dryland production. Minor irrigated production and production forestry; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG -regulated by EAs; Concentration of activity in this region - cumulative impact of this activity; CSG, multiple coal mines; Distributed across the area - more than just a localised impact; Assumption that compliance is met with EAs and DAs into the future; Risk of evaporation ponds failing (e.g. Columbia Creek); Developing new irrigation with process waste also producing a salinity risk.Consequence: Minimal or no financial impact; No aquaculture in UM.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) show no aquaculture in this catchment.

LM702



environmental value







Likelihood: Statistical analysis of water quality data shows exceedance of ANZG Aquatic ecosystems guideline as rare; Drivers present: Predominantly grazing & dryland production. Minor irrigated production and production forestry; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG -regulated by EAs; Concentration of activity in this region - cumulative impact of this activity; CSG, multiple coal mines; Distributed across the area - more than just a localised impact; Assumption that compliance is met with EAs and DAs into the future; Risk of evaporation ponds failing (e.g. Columbia Creek); Developing new irrigation with process waste also producing a salinity risk.Consequence: Moderate impacts on aquatic ecosystem; Physiological responses; Death; Loss of sensitive species; Decreases metabolism, feeding, reproduction; Susceptibility to other stressors; Behaviour modification; Altered microbial activity (decreases nutrient cycling, primary productivity, algal C food source decreased) [Q-catchments, 2015.].Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data (N= 275).




LM703









Likelihood: Drivers present: Predominantly grazing & dryland production. Minor irrigated production and production forestry; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG -regulated by EAs; Concentration of activity in this region - cumulative impact of this activity; CSG, multiple coal mines; Distributed across the area - more than just a localised impact; Assumption that compliance is met with EAs and DAs into the future; Risk of evaporation ponds failing (e.g. Columbia Creek); Developing new irrigation with process waste also producing a salinity risk.Consequence: Moderate impact on community resource as saline water is difficult to treat; Aesthetic quality impacted (taste); Health impacts in extreme cases.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to compare data against.

LM704


environmental value






Upper Moonie Surface Water Unlikely Minor Low Low

Likelihood: Drivers present however industrial use water quality requirements are as such that water being unsuitable for use is very unlikely in this catchment: Predominantly grazing & dryland production. Minor irrigated production and production forestry; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG -regulated by EAs; Concentration of activity in this region - cumulative impact of this activity; CSG, multiple coal mines; Distributed across the area - more than just a localised impact; Assumption that compliance is met with EAs and DAs into the future; Risk of evaporation ponds failing (e.g. Columbia Creek); Developing new irrigation with process waste also producing a salinity risk.Consequence: Industry is not prevalent landuse in UM; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM705



environmental value






Upper Moonie Surface Water Unlikely Moderate Low Low

Likelihood: Drivers present: Predominantly grazing & dryland production. Minor irrigated production and production forestry; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG -regulated by EAs; Concentration of activity in this region - cumulative impact of this activity; CSG, multiple coal mines; Distributed across the area - more than just a localised impact; Assumption that compliance is met with EAs and DAs into the future; Risk of evaporation ponds failing (e.g. Columbia Creek); Developing new irrigation with process waste also producing a salinity risk.Consequence: Moderate financial impact; Reduced plant productivity; Crop failure; Reduced livestock productivity; Salt poisoning resulting in death.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM706










Likelihood: Drivers present: Predominantly grazing & dryland production. Minor irrigated production and production forestry; Expansion of CSG and coal industries - Dust suppression, pipe leaks, spills etc. related to CSG -regulated by EAs; Concentration of activity in this region - cumulative impact of this activity; CSG, multiple coal mines; Distributed across the area - more than just a localised impact; Assumption that compliance is met with EAs and DAs into the future; Risk of evaporation ponds failing (e.g. Columbia Creek); Developing new irrigation with process waste also producing a salinity risk.Consequence: Primary - exposure to unsanitary water under extreme circumstance (i.e. decaying aquatic life); Secondary - Impacts of decaying aquatic life (eutrophication, exposure to pathogen etc.); Aesthetic - Salt crusts; dead aquatic life and resultant impacts (poor smell, upsetting etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.




LM707



Elevated levels of

suspended matter.



Wave wash





Likelihood: Exceedance considered to be unlikely; Infrastructure construction for the CSG and mining developments - will increase in the future due to expansion of these industries. Yuleba State Forest sand quarry discharge of water to creek under an existing DA. (Lot 2/SP197617 is freehold on Surat -Yuleba Rd). Other influences of sedimentation not anticipated. Consequence: Minor impact to community resource as suspended solids are relatively easy and inexpensive to remove from raw water.Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) identify drivers, but no local guideline value to assess against.

LM708


environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Infrastructure construction for the CSG and mining developments - will increase in the future due to expansion of these industries. Yuleba State Forest sand quarry discharge of water to creek under an existing DA. (Lot 2/SP197617 is freehold on Surat -Yuleba Rd). Other influences of sedimentation not anticipated. Consequence: Minor financial impact; Unable to operate business resulting in loss of business, reduced employment capacity.Uncertainty: Low as drivers are present (land use) as identified by local experts & land use maps (Qld Globe) and data supports this.

LM709



environmental value

Elevated levels of

suspended matter.



Wave wash





Likelihood: Infrastructure construction for the CSG and mining developments - will increase in the future due to expansion of these industries. Yuleba State Forest sand quarry discharge of water to creek under an existing DA. (Lot 2/SP197617 is freehold on Surat -Yuleba Rd). Other influences of sedimentation not anticipated.Consequence: Minor financial impact; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments. Uncertainty: Medium as local expert knowledge and land use maps (Qld Globe) identify drivers, although no local guideline value to assess data against.

LM710




Elevated levels of

suspended matter.



Wave wash





Likelihood: Infrastructure construction for the CSG and mining developments - will increase in the future due to expansion of these industries. Yuleba State Forest sand quarry discharge of water to creek under an existing DA. (Lot 2/SP197617 is freehold on Surat -Yuleba Rd). Other influences of sedimentation not anticipated.Consequence: Minor financial impact; Visually displeasing; Ions sorbed to sediments increase EC; Pathogens sorbed to sediments.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM711


environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Disposal to land of treated effluent- biosolids, not in large enough volume to increase likelihood of guideline exceedance; Lacking E.coli monitoring data; Population growth. Consequence: Significant financial loss and human health risk; Aquatic biota can develop physiological defects; Human health impacted by viruses caused by pathogen.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no known guideline value and no data to support.

LM712



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Disposal to land of treated effluent- biosolids, not in large enough volume to increase likelihood of guideline exceedance; Lacking E.coli monitoring data; Population growth. Consequence: Moderate impact on ecosystem; Aquatic biota can develop physiological defects; Mass fatalities; Sensitive species most susceptible (sensitive life history or certain sensitive developmental stages). Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.




LM713



Elevated pathogen

counts




aren't available.

Upper Moonie Surface Water Possible Minor Low High

Likelihood: Disposal to land of treated effluent- biosolids, not in large enough volume to increase likelihood of guideline exceedance; Lacking E.coli monitoring data; Population growth; Not currently sampling for E. coli or any pathogens instream. Consequence: Minor impact to community resource as raw water will go for treatment prior to consumption; Human health impacted by viruses caused by pathogens.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value and no data to support.

LM714


environmental value

Elevated pathogen

counts




aren't available.

Upper Moonie Surface Water Unlikely Insignificant Low High

Likelihood: Drivers present but these are unlikely to exceed guideline value for industrial use: Disposal to land of treated effluent; Lacking E.coli monitoring data; Population growth; Not currently sampling for E. coli or any pathogens instream. Consequence: Minimal or no financial losses.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM715



environmental value

Elevated pathogen

counts




aren't available.


Likelihood: Disposal to land of treated effluent- biosolids, not in large enough volume to increase likelihood of guideline exceedance; Lacking E.coli monitoring data; Population growth. Consequence: Significant financial loss; Viruses caused by pathogens can cause miscarriage, neurological disorders & death in cattle & swine. Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM716




Elevated pathogen

counts




aren't available.


Likelihood: Disposal to land of treated effluent- biosolids, not in large enough volume to increase likelihood of guideline exceedance; Lacking E.coli monitoring data; Population growth Consequence: Moderate disturbance to recreation values and amenity; Human health impacted by viruses caused by pathogens.Uncertainty: High as drivers identified by local experts & land use maps (Qld Globe) but no data to support.

LM717


environmental value




Eutrophication



Upper Moonie Surface Water Rare Major Low Low

Likelihood: Low potential for acid mine drainage. Potential for alkalinity from CSG. Unknown whether there is a cumulative impact of mainly the dust suppression but other impacts as well. Consequence: Major financial impact; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.). Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data; Although prevalence of Aquaculture is low in this catchment, the consequence remains moderate as the impact on the individual can be significant.

LM718



environmental value




Eutrophication




Likelihood: Low potential for acid mine drainage. Potential for alkalinity from CSG. Unknown whether there is a cumulative impact of mainly the dust suppression but other impacts as well. Consequence: Major impact on aquatic ecosystem; Consequence is localised and short lived; Fish kills; Influences toxicity of other parameters (heavy metals, ammonia etc.).Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM719






Eutrophication




Likelihood: Local experts & data analysis supports the conclusion that it is unlikely that pH would be outside natural ranges to an extent that this water would be unsuitable for use; Low potential for acid mine drainage. Potential for alkalinity from CSG. Unknown whether there is a cumulative impact of mainly the dust suppression but other impacts as well. Consequence: Minor impact to community resource as pH is easily & inexpensively corrected in the water treatment process; Human health impacts; Corrosion of pipes. Uncertainty: Medium as drivers identified by local experts & land use maps (Qld Globe) but no local guideline value to assess against.




LM720


environmental value




Eutrophication




Likelihood: Low potential for acid mine drainage. Potential for alkalinity from CSG. Unknown whether there is a cumulative impact of mainly the dust suppression but other impacts as well. Consequence: Moderate financial impact; Corrosion of pipes; Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

LM721



environmental value




Eutrophication



Upper Moonie Surface Water Rare Major Low Low

Likelihood: Low potential for acid mine drainage. Potential for alkalinity from CSG. Unknown whether there is a cumulative impact of mainly the dust suppression but other impacts as well. Consequence: Major financial loss; Corrosion of pipes; Health impacts to animals; Risks to crop health.Uncertainty: Low as drivers identified by expert local knowledge & land use maps (Qld Globe) support the data.

LM722







Eutrophication



Upper Moonie Surface Water Rare Minor Low Low

Likelihood: Low potential for acid mine drainage. Potential for alkalinity from CSG. Unknown whether there is a cumulative impact of mainly the dust suppression but other impacts as well. Consequence: Minor impact on recreation; Irritation to eyes, skin and mucous membranes; Gastrointestinal irritation; Irreversible damage to eyes.Uncertainty: Low as local expert knowledge and land use maps (Qld Globe) support data.

WM723


environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Water temperature from Great Artesian Basin water leaking to Yuleba but this is localised. Consequence: Moderate financial impact; Thermal tolerance of species is known; Limits recruitment of species.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM724



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use.Consequence: Moderate impact on aquatic ecosystem; Know temperature will impact but not the extent of this impact; Thermal tolerance of these species monitoring required; Limits recruitment of species.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM725




natural range




Reduced flow.



Upper Moonie Surface Water Rare Insignificant Low Medium

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use.Consequence: Insignificant impacts on community resource as temperature impacts on water quality (e.g. elevated temperature promoting cyanobacteria colonies) will be treated prior to consumption.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM726


environmental value


natural range




Reduced flow.



Upper Moonie Surface Water Rare Insignificant Low Medium

Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Development not expected - comments as per sediment.Consequence: Minimal or no financial impacts.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.




WM727



environmental value


natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is unlikely that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Water temperature from Great Artesian Basin water leaking to Yuleba but this is localised. Consequence: Minor impact on irrigation water; Cold water can stress crops.Uncertainty: Drivers identified by local experts and land use maps (Queensland Globe) but no local guideline value to assess against.

WM728





natural range




Reduced flow.




Likelihood: Local experts and data analysis supports the conclusion that it is rare that water temperatures would be outside natural ranges to an extent that this water would be unsuitable for use; Development not expected - comments as per sediment.Consequence: Minimal or no impact on community resource.Uncertainty: Localised drivers identified by local experts and land use maps (Queensland Globe) and the data supports this.

WM729


environmental value

Dissolved oxygen




Eutrophication




Likelihood: Statistical analysis shows exceedance of Aquaculture guideline as unlikely; Drivers not identified by local experts.Consequence: Moderate individual financial loss; Oxygen availability critical to species development and reproduction.Uncertainty: ANZG dissolved oxygen guideline for Aquatic ecosystem was used in lieu of an Aquaculture guideline - this guideline may be conservative. Drivers not identified by local experts; Reliable data sample size (mg/L)(N=147).

Sources •

Risk Assessment Report - Appendix 7. Water Quality - Groundwater Register of Risk

Comments/Rationale

Risk Risk factor Source of threat

Indicators / Environmental

value consequence

Assessment unit Spatial extent of risk Likelihood Consequence Level of risk Uncertainty Scope of supporting evidence including consultation; confidence in risk analysis and justification

LM1

Water being of a quality unsuitable for use

Elevated levels of pesticides, heavy metals

and other toxic contaminants

Allowing pesticides or other contaminants to

leach into groundwater.

A reduction in suitability of the groundwater to

support identified environmental values (aquatic ecosystem and

human use values).

Upper Condamine Alluvium (Tributaries)

(GS64b)

Groundwater - Oakey groundwater contamination incident N/A N/A N/A N/A

An environmental investigation and assessment of the Oakey Army Aviation Centre contamination incident has been undertaken and long-term remediation program is currently being developed. Due to the ongoing management of this issue, separate to the Basin Plan implementation process, the risk score has not been calculated.

LM2


Elevated levels of nutrients, including

phosphorus and nitrogen

Nutrients entering groundwater resources through point or diffuse

sources, including (a) soil and organic matter, (b)

animal waste, (c) fertilisers, (d) sewage and

industrial discharges.



human use values).

Upper Condamine Basalts (GS65) Groundwater - Hotspot at Mt Tyson Likely Moderate Medium Medium

Likelihood:Total nitrogen and total phosphorus concentrations will be addressed by the water quality targets developed for these waters, including local hotspots. Due to the cyclic nature and high transmissivity of the system (recharge/discharge) - the Upper Condamine Basalts are susceptible to contamination if intensive land use increases the application of nutrients. Levels of nutrients in the groundwater resource unit will depend on the rate at which the organic material breaks over time or through flushing from recharge events.Consequence: High utilisation of this resource unit as it is easy to access and has good water quality. This issue has the potential to affect drinking water quality. There may be some non-compliance with aquatic ecosystem local water quality targets. Uncertainty: Although high levels of nitrate have been detected previously, current groundwater data does not show high levels. Land use supports the presence of nutrients.

LM3

Water being of a quality unsuitable for use Elevated levels of salinity

Mobilisation of salt from irrigation or major recharge

events - leaching to groundwater resources.



human use values).

Queensland Border Rivers Fractured

Rock (GS55)

Granite Belt Groundwater, including Stanthorpe Granites. Weathered

zone. Possible Moderate Medium Low

Likelihood: This resource unit is a highly connected landscape between groundwater (weathered zone) and surface water. The salinity of the resource unit is low. Irrigation induced salinity is present in the Granite Belt (Biggs and Powers, 2002; Biggs, 2010). This issue is of particular concern in Broadwater (west of Stanthorpe). Consequence: If the groundwater resource unit increases in salinity, it would affect bores in the weathered zone rather than the fractured rock - as there is a higher likelihood of water supply in the weathered zone. However, the impacts would be localised only. The ecology is sensitive - the biota is responsive to many changes in the system as it is adapted to cold water, low salinity ecosystems. Uncertainty: High connectivity and presence of salinity issues is supported by the literature.

LM4










human use values).


Rock (GS55)


zone. Possible Moderate Medium Medium

Likelihood: Due to the sandy landscape of this resource unit, nutrients do not readily bind to soils. Combined with the higher rainfall than other areas of Queensland Murray-Darling Basin this leads to an increased likelihood of highly mobile contaminants. If the groundwater underlies intensive agriculture, on first principles nutrient problems may arise. However, the expert panel identified that efficient application of fertiliser (drip fertigation) is preventing an increase in the risk. The Queensland Border Rivers Fractured Rock – Granite Belt is a highly connected landscape (groundwater and surface water) that requires active management to mitigate risk. Total nitrogen and total phosphorus concentrations will be addressed by the water quality targets developed for these waters.Consequence: There is a potential impact on the sensitive groundwater aquatic ecosystem and a reduction in suitability of water for use, particularly for drinking. There is high utilisation of this resource - water users use a mix of surface water and groundwater resources from the weathered zone. Uncertainty: Land use indicates potential for elevated levels of nutrients but current groundwater data does not show high levels.

LM5








human use values).


Rock (GS55)


zone. Possible Moderate Medium Medium

Likelihood: This resource unit is a highly connected landscape between groundwater (weathered zone) and surface water. Due to the sandy landscape, pesticides and other contaminants do not readily bind to soils. Combined with the higher rainfall than other areas of Queensland Murray-Darling Basin this leads to an increased likelihood of highly mobile contaminants. This resource unit is also located in a metalliferous zone (tin mining previously occurred) so there is a higher likelihood of elevated metals naturally occurring. Consequence: There is a potential impact on the sensitive groundwater aquatic ecosystem and a reduction in suitability of water for use. There is high utilisation of this resource - water users use a mix of surface water and groundwater resources in the weathered zone. Uncertainty: Lacking pesticide and other contaminant monitoring data, however land use and rainfall data indicates that these contaminants are most likely present. Previous studies show the high connectivity between land and basalts.

Please note, this is a working document developed to support the risk assesment information present in the HWMPs. As such, this document does not represent a Queensland governament policy position.

Water Quality Risk Assessment - Groundwater Register of RiskRisk code


Comments/Rationale


Water Quality Risk Assessment - Groundwater Register of Risk

LM6










human use values).

Upper Condamine Basalts (GS65) Groundwater Possible Moderate Medium Medium

Likelihood: Because the Upper Condamine Basalts are a cyclic system, if there is increasing urbanisation or feedlot development, the resource has the potential to have elevated levels of nutrients. Expert panel assessment indicates that based on first principles a risk could potentially occur due to an increase in agriculture, intensive livestock, horticulture and urban development. There has been an intensification of land use around Toowoomba supplying produce to overseas markets. In particular, Wyreema, Clifton and Westbrook region have the drivers for higher nutrients. Consequence: There is high utilisation of this resource unit as it is easy to access and has good water quality. This issue has the potential to affect drinking water quality. There may be some non-compliance with aquatic ecosystem local water quality targets. Uncertainty: Land use indicates potential for elevated levels of nutrients but current groundwater data does not show high levels.

LM7








human use values).

Upper Condamine Basalts (GS65) Groundwater Possible Moderate Medium Medium

Likelihood: The Upper Condamine Basalts is a cyclic groundwater system with fast recharge rates. The DRASTIC hazard assessment (vulnerability score) has been conducted and shows the basalts have a high susceptibility to contamination from land. Elevated levels of pesticides, heavy metals or other toxic contaminants is possible if urban and rural development intensifies. It was noted that localised contamination incidents may arise from airports, cattle dips, service stations and industrial areas associated with rural towns, however water quality impacts are managed under the Environmental Protection Act 1994 - thus mitigating risk.Consequence: There is high utilisation of this resource unit as it is easy to access and has good water quality. As a result, the impact on water users would be moderate. There may be some non-compliance with aquatic ecosystem local water quality targets. Uncertainty: Lacking pesticide and other contaminant monitoring data, however land use indicates that these contaminants are most likely present. Previous studies show the high connectivity between land and basalts.

LM8

Water being of a quality unsuitable for use Elevated pathogen counts

Pathogens entering groundwater resources through point or diffuse

sources, including human and animal waste and sewage discharges.



human use values).

Upper Condamine Basalts (GS65)

Groundwater - Hotspot at Highfields, Toowoomba Possible Moderate Medium High

Likelihood: Peri-urban development (expansion or residential development into rural areas) in addition to aging septic trenches result in the potential for pathogen entry into the resource unit.Consequence: There is high utilisation of this resource unit as it is easy to access and has good water quality. This issue has the potential to affect drinking water quality if a risk materialises.Uncertainty: Lacking monitoring data.

LM9










human use values).

Queensland Border Rivers Alluvium

(GS54)

Groundwater - shallow: Whole resource unit but particularly Goondiwindi and Dumaresq

Hotspots


Likelihood: The expert panel assessment indicates that based on first principles a risk could potentially occur in this resource unit due to an increase in agriculture, intensive livestock, horticulture and urban development. A Groundwater Quality Assessment of the Alluvial Aquifers of the Border Rivers Region (Please, P et al., 2000) stated that groundwater nitrate-N concentrations are considered generally low in this region, however concentrations of ammonium-N and TDP are notably higher than those found in other field areas in the Murray-Darling Basin. The expert panel indicated that there is a localised risk from Goondiwindi and Dumaresq region due to effluent spread on land, urban inputs and fertiliser application - particularly relating to an increase in nitrogen. Total nitrogen and total phosphorus concentrations will be addressed by the water quality targets developed for these waters, including local hotspots. The Dumaresq is at risk due to the high permeability of the Macintyre River Alluvium. Increasing land use intensity may have impacts on groundwater in the Eastern sector of the resource unit (Dumaresq) if river water becomes contaminated due to high connectivity between surface water and groundwater (Please, P et al., 2000).Consequence: If a localised impact occurs, it would affect local take of water supply from the Queensland Border Rivers Alluvium. There may be some non-compliance with aquatic ecosystem local water quality targets if the risk materialised. As the Macintyre Brook is a gaining stream from the Border Rivers Alluvium, any contamination would affect both groundwater and surface waters. In the Western sector of the resource unit, phosphorus that is attached to clay particles may be transported to surface waters due to a baseflow connection, adding to the pool of phosphorus that can lead to algal and cyanobacterial blooms (Please, P et al., 2000). Uncertainty: Monitoring data indicates elevated levels of nutrients. Land use supports the presence of these contaminants.


Comments/Rationale



LM10








human use values).


(GS54)


Hotspots


Likelihood: The expert panel assessment indicated that there is a localised risk from Goondiwindi and Dumaresq region due to urban and rural development. The Dumaresq is at risk due to the high permeability of the Macintyre River Alluvium. On first principles, there is a thin unconsolidated zone associated with this resource unit which could lead to increased levels of pesticides, heavy metals and other toxic contaminants. It should be noted that Western Sector aquifers are very clayey with low permeabilities and poor yields which may impede infiltration of soluble and particulate contaminants and recharge waters. However, the Western Sector also has 'cracking clays' which may still enable recharge waters to enter the aquifer (Please, P et al., 2000). A Groundwater Quality Assessment of the Alluvial Aquifers of the Border Rivers Region (Please, P et al., 2000) stated that the frequency of groundwater pesticide contamination is low - noting that the most frequently detected pesticide was atrazine. Fluormetron was also detected in one sample. Heavy metals concentration is addressed by the water quality targets developed for these waters, based on ANZG 2018 guidelines. It was noted that localised contamination incidents may arise from airports, cattle dips, service stations and industrial areas associated with rural towns, however these are managed in a way that protects public health and the environment by the Department of Environment and Heritage Protection.Consequence: If a localised impact occurs, it would affect local take of water supply from the Queensland Border Rivers Alluvium. As the Macintyre Brook is a gaining stream from the Border Rivers Alluvium - any contamination would affect both groundwater and surface waters. Uncertainty: Pesticide and other contaminant monitoring data indicates presence of contaminants. Land use supports the presence of these contaminants.

WM11


Elevated levels of salinity The use of groundwater for irrigation purposes atlocations where highly saline upper aquifer waterdrains to the lower aquifer (applicable to the St GeorgeAlluvium (Deep) only).

A reduction in suitability of the groundwater to support identified environmental values (aquatic ecosystem and human use values).

St George Alluvium: Condamine-Balonne

(Deep) (GS61)Groundwater Unlikely Major Medium Low

Likelihood: The expert panel indicated that the St George Alluvium deep aquifer is comprised of low salinity groundwater. Due to aquifer connectivity, the expert panel identified that increased groundwater use from the St George Alluvium deep aquifer could result in elevated levels of salinity. This would result from infiltration of poorer quality saline waters from the surrounding St George Alluvium shallow aquifer and the Great Artesian Basin.Consequence: If salinity is to increase it would cause complications for stock and domestic and other uses—impacting productivity in the region, particularly for cotton and fodder crops. Due to the importance of groundwater for sustaining the community, the salinization of reserves would have a significant impact on local values and the ability to use water. Due to the slow process of infiltration and recharge, the aquatic ecosystem is predicted to take some time to recover if elevated levels of salinity were to occur. Uncertainty: High connectivity and presence of salinity issues is supported by the literature.

LM12






human use values).


Rock (GS67)


zone. Unlikely Moderate Low High

Likelihood: Non-sewered areas could potentially lead to an increase of pathogens in this resource unit - however there was no supporting information for this occurring. Consequence: There is a potential impact on the sensitive groundwater aquatic ecosystem and a reduction in suitability of water for use, particularly for drinking. There is high utilisation of this resource - water users use a mix of surface water and groundwater resources from the weathered zone. As a result, impacts would be moderate. Uncertainty: Lacking monitoring data.

WM13


pH outside natural ranges A change in pH due to seepage from a surface land use or mixing between aquifers.



Rock (GS67)


zone. Unlikely Moderate Low High

Likelihood: It is unlikely that significant pH changes would occur in this resource unit due to a lack of drivers. Bore construction standards are in place to prevent intermixing between aquifers from drilling. Consequence: Potential impact on aquatic ecosystems, reduction in suitability of water for use. There is a high utilisation of this resource - water users use a mix of surface water and groundwater resources in the weathered zone. Uncertainty: There is a lack of monitoring data.


Comments/Rationale



LM14








human use values).


Rock (GS67)Traprock (Texas Beds) Unlikely Moderate Low Medium

Likelihood: There are some localised metalliferous areas located at this resource unit. The Silver Spur abandoned mine is located near Texas and is a potential source of contaminants - however the likelihood of an incident occurring is mitigated through the management of abandoned mines by the Queensland Government.Consequence: There are minimal entitlements in the Texas Beds due to limitations in accessing a reliable supply from the resource. There is also a large spatial distribution of the resource unit. The sensitive groundwater aquatic ecosystem may be vulnerable to the elevated contaminants associated with a mine site and therefore the consequence is moderate. Non-compliance with some aquatic ecosystem local water quality targets may occur. Uncertainty: Lacking monitoring data but land use suggests issue may be present.

LM15

Water being of a quality unsuitable for use pH outside natural ranges

A change in pH due to seepage from a surface

land use or mixing between aquifers.



human use values).


Rock (GS67)Traprock (Texas Beds) Unlikely Moderate Low Medium

Likelihood: There are some localised metalliferous areas located at this resource unit. There is potential for acidic water due to the pyritic elements (iron sulphide) in the Permian sediment zones. However, this is unlikely to be an issue other than where localised disturbance has occurred. For example, acidic water is present at the Silver Spur abandoned mine near Texas - however the likelihood of an incident occurring is mitigated through the management of abandoned mines by the Queensland Government.Consequence: There are minimal entitlements in the Texas Beds due to limitations in accessing a reliable supply from the resource. There is also a large spatial distribution of the resource unit. The sensitive groundwater aquatic ecosystem may be vulnerable to the elevated contaminants associated with a mine site and therefore the consequence is moderate. Non-compliance with some aquatic ecosystem local water quality targets may occur. Uncertainty: Lacking monitoring data but land use suggests issue may be present.

LM16






human use values).


(Shallow) (GS61)Groundwater Possible Minor Low Medium

Likelihood: There is potential for increased salinity due to recharge under irrigated land (deep drainage). Rising groundwater trends indicate recharge is occurring. Consequence: As the resource unit is naturally saline, it does not currently support many users. As a result, there is less impact of an increase in salinity on water users and the aquatic ecosystem.Uncertainty: Lacking monitoring data but land use suggests issue may be present.

LM17










human use values).


(Shallow) (GS61)Groundwater - Hotspot at St George Possible Minor Low High

Likelihood: There is a potential hotspot at St George due to intensive cotton irrigation, feedlots and aging sewage ponds. However, as stream to groundwater recharge is predominantly from the less-developed Maranoa region and the presence of a clay profile at St George limiting seepage - these factors may potentially limit a higher risk from occurring. Monitoring of the groundwater resource would better characterise risk. Consequence: There are limited users of groundwater from this resource unit as it is of poorer water quality naturally. There may be some non-compliance with aquatic ecosystem local water quality targets. Uncertainty: Lacking monitoring data.

LM18






human use values).


(Shallow) (GS61)Groundwater - Hotspot at St George Possible Minor Low High

Likelihood: In non-reticulated areas, there is the potential for a localised increased risk of pathogens in the resource unit where septic trenches may be used. Monitoring of the groundwater resource would better characterise risk. Consequence: There are limited users of groundwater from this resource unit as it is of poorer water quality naturally. The use of bores for drinking water would be impacted if the risk materialised. Uncertainty: Lacking monitoring data.

LM19






human use values).

Upper Condamine Basalts (GS65) Groundwater Unlikely Moderate Low Medium

Likelihood: Basalt soils are lower in salinity. Due to the cyclic nature and high transmissivity of the system (recharge/discharge) the resource is not anticipated to salinise. No drivers for increase salinity were identified by the expert panel. Consequence: There is high utilisation of this resource unit as it is easy to access and has good water quality. As a result, the impact on water users would be moderate. There may be some non-compliance with aquatic ecosystem local water quality targets. Uncertainty: Lacking monitoring data but land use suggests issue may be present.


Comments/Rationale



LM20






human use values).

Upper Condamine Basalts (GS65) Groundwater Unlikely Moderate Low High

Likelihood: The expert panel identified that there are a lack of drivers to produce a risk of pathogens more widely across the resource unit. Consequence: There is high utilisation of this resource unit as it is easy to access and has good water quality. This issue has the potential to affect drinking water quality.Uncertainty: Lacking monitoring data.

WM21




Upper Condamine Basalts (GS65) Groundwater Unlikely Moderate Low High

Likelihood: It is unlikely that significant pH changes would occur in this resource unit due to a lack of drivers. Bore construction standards are in place to prevent intermixing between aquifers from drilling. Consequence: There is high utilisation of this resource unit as it is easy to access and has good water quality. There may be some non-compliance with aquatic ecosystem local water quality targets. Uncertainty: There is a lack of monitoring data.

LM22






human use values).


(GS64b)Groundwater Unlikely Moderate Low Medium

Likelihood: The alluvium (depth up to 50 metres) is a highly productive and developed system. It is connected to the South West and Condamine Basalts. It is a stable system that tends to have naturally variable salinity, with salinity increasing particularly with depth. The current land use pattern is unlikely to produce a risk of increased salinity. Consequence: The Upper Condamine Alluvium supplies stock and domestic water use. The water quality is suitable for agricultural development and as a result the resource is highly utilised. Uncertainty: Lacking monitoring data but land use suggests issue may be present.

LM23










human use values).



Likelihood: The expert panel assessment indicates that based on first principles a risk could potentially occur due to an increase in agriculture, intensive livestock, horticulture and urban development. There has been an intensification of land use around Toowoomba supplying produce to overseas markets. There has been some horticulture and intensive livestock (chickens) expansion. However, the full impact of this on the nutrient budget has been potentially offset by a decrease in the dairy industry in this area. In addition, due to the black soils of the area there is a slow recharge buffer - limiting the entry of contaminants into the resource unit. Consequence: There are a number of rural centres that are located on this alluvium - such as Allora, Oakey and Clifton. Stock and domestic water supplies, particularly drinking water, could potentially be affected if an impact occurred. However, alternative water sources exist if the risk materialised. Uncertainty: Lacking monitoring data but land use suggests issue may be present.

LM24








human use values).



Likelihood: It is unlikely that urban and rural development has been of an intensity to produce a risk to the groundwater resource. Due to the black soils of the area there is a slow recharge buffer, limiting the entry of contaminants into the resource unit. It was noted that localised contamination incidents may arise from airports, cattle dips, service stations and industrial areas associated with rural towns, however these are managed in a way that protects public health and the environment by the Department of Environment and Heritage Protection. Consequence: There are a number of rural centres that are located on this alluvium - such as Allora, Oakey and Clifton. Stock and domestic water supplies, particularly drinking water, could potentially be affected if an impact occurred. However, alternative water sources exist if the risk materialised. Uncertainty: Lacking monitoring data but land use suggests issue may be present.

LM25






human use values).


(GS64b)Groundwater Unlikely Moderate Low High

Likelihood: It is unlikely that urban and rural development has been of an intensity to produce a risk to the groundwater resource. Consequence: Stock and domestic and agricultural water supplies could potentially be affected if an impact occurred. The use of bores for drinking water would be impacted if the risk materialised. Uncertainty: Lacking monitoring data.


Comments/Rationale



WM26






Likelihood: It is unlikely that significant pH changes would occur in this resource unit due to a lack of drivers. Bore construction standards are in place to prevent intermixing between aquifers from drilling. Consequence: Stock, domestic and agricultural water supplies could potentially be affected if an impact occurred. There may be some non-compliance with aquatic ecosystem local water quality targets if the risk materialised. Uncertainty: There is a lack of monitoring data but land use suggests the issue may be present.

LM27






human use values).

Upper Condamine Alluvium (Central

Condamine Alluvium) (GS64a)

Groundwater Unlikely Moderate Low Medium

Likelihood: There is application of coal seam gas water to land for irrigation in the region of Chinchilla, Cecil Plains and Condamine which may lead to the mobilisation of salts in the landscape. Coal seam gas and resource extraction are activities regulated by the Department of Environment and Science. Impacts from environmetally relevant activities are regulated, managed and minimised through the Development Application and Environmental Authority approval process.Consequence: If any impact does occur to water users and the aquatic ecosystem, it is likely to be localised as water does not move quickly through the alluvium. Uncertainty: Lacking monitoring data but land use suggests issue may be present.

LM28










human use values).




Likelihood: The expert panel assessment indicates that based on first principles a risk could potentially occur due to an increase in agriculture, intensive livestock, horticulture and urban development. There has been an intensification of land use around Toowoomba supplying produce to overseas markets. Nutrient application is expected to increase. Due to the presence of black soils, the Central Condamine Alluvium has longer recharge periods in comparison to the basalts, which have a high throughflow. As a result, the Central Condamine Alluvium is not as exposed to surface pressures. Consequence: If any impact does occur, it is likely to be localised as water does not move quickly through the alluvium. Uncertainty: Lacking monitoring data but land use suggests issue may be present.

LM29








human use values).




Likelihood: Due to the presence of black soils, the Central Condamine Alluvium has longer recharge periods in comparison to the basalts, which have a high throughflow. As a result, the Central Condamine Alluvium is not as exposed to surface pressures. It was noted that localised contamination incidents may arise from airports, cattle dips, service stations and industrial areas associated with rural towns, however these are managed in a way that protects public health and the environment by the Department of Environment and Heritage Protection. Consequence: If any impact does occur, it is likely to be localised as water does not move quickly through the alluvium. Uncertainty: Lacking monitoring data but land use suggests issue may be present.

LM30






human use values).



Groundwater Unlikely Moderate Low High

Likelihood: There were no drivers identified by the expert panel to increase the risk of pathogens within this resource unit. Consequence: If any impact does occur, it is likely to be localised as water does not move quickly through the alluvium. The use of bores for drinking water and irrigation would be impacted if the risk materialised. Uncertainty: Lacking monitoring data.

WM31






Groundwater Unlikely Moderate Low High

Likelihood: It is unlikely that significant pH changes would occur in this resource unit due to a lack of drivers. Bore construction standards are in place to prevent intermixing between aquifers from drilling. Consequence: Stock and domestic water supplies could potentially be affected if an impact occurred. There may be some non-compliance with aquatic ecosystem local water quality targets. Uncertainty: There is a lack of monitoring data.


Comments/Rationale



LM32






human use values).


(GS54)Groundwater - shallow Unlikely Moderate Low Medium

Likelihood: On first principles, there is a thin unconsolidated zone associated with this resource unit which could lead to increased salinity from irrigation. However, due to low levels of irrigated land in this area the risk has not eventuated. Forage and fodder crops are grown in this area. Due to the water scarce environment, water efficient practices are implemented which reduces infiltration and the mobilisation of salts. A Groundwater Quality Assessment of the Alluvial Aquifers of the Border Rivers Region (Please, P et al., 2000) stated that groundwater electrical conductivity for the region ranged from 217 to 40,400us/cm, however high salinity is not expressed on the surface as surface water measurements were of lower EC. The highest EC levels were associated with the Macintyre and western areas of the resource unit (Serpentine region). Consequence: This resource unit has a medium level of utilisation. Due to naturally high salinity in the resource unit, any potential increase is not anticipated to be of significant consequence to water users or the environment. Uncertainty: Lacking monitoring data but land use suggests issue may be present.

LM33






human use values).


(GS54)


Hotspots

Unlikely Moderate Low High

Likelihood: On first principles, there is a thin unconsolidated zone associated with this resource unit which could lead to increased levels of pathogens if feedlots and sewage inputs increase. Consequence: If a localised impact occurs, it would affect local take of water supply from the Queensland Border Rivers Alluvium. The use of bores for drinking water and irrigation would be impacted if the risk materialised. Uncertainty: Lacking monitoring data.

WM34





(GS54)Groundwater - shallow Unlikely Moderate Low High

Likelihood: The Border Rivers Alluvium (downstream of Goondiwindi) has sporadic occurrences of strongly acidic shallow groundwater. Some is potentially natural and some may be due to irrigation development. The sporadic nature of the pH fluctuations is not at a frequency that would cause a significant impact to water users. Sulfur-reducing bacteria can occur in oxygen-deficient environments and are known to affect bores in the Lower Border Rivers area. Consequence: If a localised impact occurs, it would affect local take of water supply from the Queensland Border Rivers Alluvium. Sulfur-reducing bacteria can impact on an individual water user's bore and requires bore maintenance to address the problem.Uncertainty: There is a lack of monitoring data.

LM35






human use values).


(GS54)Groundwater - deep Unlikely Moderate Low High

Likelihood: The expert panel indicated that it would be unlikely for salinity levels to increase in the resource unit due to the depth at which the resource is located. No drivers were identified in the area that would pose a threat of contamination to the deep resource unit. The deep Queensland Border Rivers resource unit contains older groundwaters possibly derived from lateral flow or upward leakage from the surrounding bedrock (Please, P et al., 2000).Consequence: This resource unit is heavily utilised and therefore if the risk materialised it would impact a high number of users. There may be some non-compliance with aquatic ecosystem local water quality targets if the risk materialised. Uncertainty: Lacking monitoring data.

LM36










human use values).



Likelihood: The expert panel indicated that it would be unlikely for nutrient levels to increase in the resource unit due to the depth at which the resource is located. No drivers were identified in the area that would pose a threat of contamination to the deep resource unit. Consequence: This resource unit is heavily utilised and therefore if the risk materialised it would impact a high number of users. There may be some non-compliance with aquatic ecosystem local water quality targets if the risk materialised. Uncertainty: Lacking monitoring data.

LM37








human use values).



Likelihood: The expert panel indicated that it would be unlikely for pesticides and other contaminants to increase in the resource unit due to the depth at which the resource is located. No drivers were identified in the area that would pose a threat of contamination to the deep resource unit. Consequence: This resource unit is heavily utilised and therefore if the risk materialised it would impact a high number of users. There may be some non-compliance with aquatic ecosystem local water quality targets if the risk materialised.Uncertainty: Lacking monitoring data.


Comments/Rationale



LM38






human use values).



Likelihood: It is unlikely that urban and rural development has been of an intensity to produce a risk to the deep groundwater resource unit. Consequence: This resource unit is heavily utilised and therefore if the risk materialised it would impact a high number of users. The use of bores for drinking water and agriculture would be impacted if the risk materialised. Uncertainty: Lacking monitoring data.

WM39






Likelihood: It is unlikely that significant pH changes would occur in this resource unit due to a lack of drivers. Bore construction standards are in place to prevent intermixing between aquifers from drilling. Consequence: This resource unit is heavily utilised and therefore if the risk materialised it would impact a high number of users. Uncertainty: There is a lack of monitoring data.

LM40










human use values).


(Deep) (GS61)Groundwater Unlikely Minor Low High

Likelihood: The expert panel indicated that it would be unlikely for nutrient levels to increase in the resource unit due to the depth at which the resource is located. No drivers were identified in the area that would pose a threat of contamination to the deep resource unit. Consequence: There is low utilisation of this aquifer as it is deeper and more expensive to access. Surface water use is more preferable. Uncertainty: Lacking monitoring data.

LM41








human use values).



Likelihood: The expert panel indicated that it would be unlikely for pesticides, heavy metals and other toxic contaminants to increase in the resource unit due to the depth at which the resource is located. No drivers were identified in the area that would pose a threat to the contamination of the deep resource unit. Consequence: There is low utilisation of this aquifer as it is deeper and more expensive to access. Surface water use is preferable. Uncertainty: Lacking monitoring data

LM42






human use values).



Likelihood: The expert panel indicated that it would be unlikely for pathogen levels to increase in the resource unit due to the depth at which the resource is located. No drivers were identified in the area that would pose a threat of contamination to the deep resource unit. Consequence: There is low utilisation of this aquifer as it is deeper and more expensive to access. Surface water use is more preferable. Uncertainty: Lacking monitoring data

WM43






Likelihood: It is unlikely that significant pH changes would occur in this resource unit due to a lack of drivers. Bore construction standards are in place to prevent intermixing between aquifers from drilling. Consequence: There is low utilisation of this aquifer as it is deeper and more expensive to access. Surface water use is more preferable. Uncertainty: There is a lack of monitoring data.

LM44






human use values).


Rock (GS67)Traprock (Texas Beds) Unlikely Minor Low Medium

Likelihood: The expert panel indicated that there are some known areas of groundwater discharge leading to localised surface water salinity increases - but overall drivers are lacking for an increase in salinity in the groundwater resource itself. There is some interest in unallocated water in this region - but, if realised, the level of additional use was not considered high enough produce an increase in the salinity risk. Consequence: There are minimal entitlements in the Texas Beds due to limitations in accessing a reliable supply from the resource. There is also a large spatial distribution of the resource unit. As a result, there is a lack of existing pressures on the resource unit.Uncertainty: Lacking monitoring data but land use suggests issue may be present.


Comments/Rationale



LM45










human use values).


Rock (GS67)Traprock (Texas Beds) Unlikely Minor Low High

Likelihood: There were no drivers identified by the expert panel to increase the risk of nutrients in this area. Consequence: There are minimal entitlements in the Texas Beds due to limitations in accessing a reliable supply from the resource. There is also a large spatial distribution of the resource unit. As a result, there is a lack of existing pressures on the resource unit.Uncertainty: Lacking monitoring data.

LM46






human use values).


Rock (GS67)Traprock (Texas Beds) Unlikely Minor Low High

Likelihood: There were no drivers identified by the expert panel to increase the risk of pathogens in this area. Consequence: There are minimal entitlements in the Texas Beds due to limitations in accessing a reliable supply from the resource. There is also a large spatial distribution of the resource unit. As a result, there is a lack of existing pressures on the resource unit.Uncertainty: Lacking monitoring data.

LM47






human use values).

Sediments above the GAB: Border Rivers

(GS57)Sediments above the

GAB: Condamine-Balonne (GS58)

Sediments above the GAB: Moonie (GS59)

Groundwater Unlikely Minor Low High

Likelihood: There is the potential for unconventional gas development within these resource units and salinity impacts from non-associated water. Coal seam gas and resource extraction are activities regulated by the Department of Environment and Science. Impacts from environmetally relevant activities are regulated, managed and minimised through the Development Approval and Environmental Authority process.Consequence: This is a naturally saline groundwater system, therefore potential impact of elevated salinity levels is limited. Due to the large area covered by the Sediments above the Great Artesian Basin resource units it is unlikely for water users to impact on each other. Most people use the resource for stock and domestic so few licences apply. Uncertainty: Lacking monitoring data.

LM48










human use values).






Likelihood: The expert panel indicated there are limited potential drivers for an increase in nutrient levels. There may be potential for additional feedlots - however existing legislative controls (Development Applications and Environmental Authority approvals), as well as the natural attenuation capacity of the waste should limit any impact. STPs with total daily peak design capacity of at least 21EP are regulated by the Department of Environment and Science. Impacts from environmetally relevant activities are regulated, managed and minimised through the Development Approval and Environmental Authority process.Consequence: Due to the large area covered by the Sediments above the Great Artesian Basin resource units, it is unlikely for water users to impact on each other. The resource unit is mostly used for stock and domestic purposes, so few licences apply. Uncertainty: Lacking monitoring data.

LM49








human use values).






Likelihood: There were no drivers identified by the expert panel to increase the risk of pesticides or other contaminants within this resource unit. Consequence: Due to the large area covered by the Sediments above the Great Artesian Basin resource units, it is unlikely for water users to impact on each other. The resource unit is mostly used for stock and domestic purposes, so few licences apply. Uncertainty: Lacking monitoring data.

LM50






human use values).






Likelihood: There were no drivers identified by the expert panel to increase the risk of pathogens within this resource unit. Consequence: Due to the large area covered by the Sediments above the Great Artesian Basin resource units it is unlikely for water users to impact on each other. Most people use the resource for stock and domestic so few licences apply. Uncertainty: Lacking monitoring data.


Comments/Rationale



WM51









Likelihood: It is unlikely that significant pH changes would occur in this resource unit due to a lack of drivers. Bore construction standards are in place to prevent intermixing between aquifers from drilling. Although strong acidity is a known feature in localised areas, the expert panel did not consider this to pose an issue to the resource unit. Consequence: Due to the large area covered by the Sediments above the Great Artesian Basin resource units it is unlikely for water users to impact on each other. Most people use the resource for stock and domestic so few licences apply. Uncertainty: There is a lack of monitoring data.

LM52










human use values).


(Shallow) (GS61)Groundwater Unlikely Minor Low High

Likelihood: There were no drivers identified by the expert panel to increase nutrients to significant levels in the wider resource unit. Consequence: There are limited users of groundwater from this resource unit as it is of poorer water quality naturally. There may be some non-compliance with aquatic ecosystem local water quality targets. Uncertainty: Lacking monitoring data.

LM53








human use values).



Likelihood: There were no drivers identified by the expert panel that would lead to an increase in pesticides, heavy metals and other toxic contaminants. It was noted that localised contamination incidents may arise from airports, cattle dips, service stations and industrial areas associated with rural towns, however these are managed in a way that protects public health and the environment by the Department of Environment and Heritage Protection. Consequence: Stock and domestic water supplies could potentially be affected if an impact occurred. There may be some non-compliance with aquatic ecosystem local water quality targets. Uncertainty: Lacking monitoring data.

LM54






human use values).



Likelihood: There were no drivers identified by the expert panel to increase the risk of pathogens within this resource unit. Consequence: Stock and domestic water supplies could potentially be affected if an impact occurred. The use of bores for drinking water would be impacted if the risk materialised. Uncertainty: Lacking monitoring data.

WM55






Likelihood: It is unlikely that significant pH changes would occur in this resource unit due to a lack of drivers. Bore construction standards are in place to prevent intermixing between aquifers from drilling. Consequence: Stock and domestic water supplies could potentially be affected if an impact occurred. There may be some non-compliance with aquatic ecosystem local water quality targets. Uncertainty: There is a lack of monitoring data.

LM56






human use values).

St George Alluvium: Moonie (GS62) Groundwater Unlikely Minor Low High

Likelihood: There were no drivers identified by the expert panel to increase the risk of salinity within this resource unit. Consequence: There are negligible entitlements from this resource unit as it is difficult to access and locate a decent supply. There may be some non-compliance with aquatic ecosystem local water quality targets if the risk materialised. Uncertainty: Lacking monitoring data.

LM57










human use values).


Likelihood: There were no drivers identified by the expert panel to increase the risk of nutrients within this resource unit. Consequence: There are negligible entitlements from this resource unit as it is difficult to access and locate a decent supply. There may be some non-compliance with aquatic ecosystem local water quality targets if the risk materialised. Uncertainty: Lacking monitoring data.


Comments/Rationale



LM58








human use values).

St George Alluvium: Moonie (GS62)


Likelihood: There were no drivers identified by the expert panel to increase the risk of pesticides and other contaminants within this resource unit. It was noted that localised contamination incidents may arise from airports, cattle dips, service stations and industrial areas associated with rural towns, however these are managed in a way that protects public health and the environment by the Department of Environment and Heritage Protection. Consequence: There are negligible entitlements from this resource unit as it is difficult to access and locate a decent supply. There may be some non-compliance with aquatic ecosystem local water quality targets if the risk materialised. Uncertainty: Lacking monitoring data.

LM59






human use values).


Likelihood: There were no drivers identified by the expert panel to increase the risk of pathogens in this area. Consequence: There are negligible entitlements from this resource unit as it is difficult to access and locate a decent supply. Uncertainty: Lacking monitoring data.

WM60





Likelihood: It is unlikely that significant pH changes would occur in this resource unit due to a lack of drivers. Bore construction standards are in place to prevent intermixing between aquifers from drilling. Sulfur-reducing bacteria can occur in oxygen-deficient environments and are known to affect bores in the Moonie area. Consequence: There are negligible entitlements from this resource unit as it is difficult to access and locate a decent supply. Sulfur-reducing bacteria can impact on an individual water user's bore and requires bore maintenance to address the problem.Uncertainty: There is a lack of monitoring data.

LM61






human use values).

Condamine Fractured Rock

(GS53)Groundwater Unlikely Minor Low Medium

Likelihood: The expert panel indicated that there are no drivers to increase salinity as this resource unit is located in a region dominated by state forest, national park or native pastures. The expert panel indicated that there is some interest in unallocated water in this region, however due to existing low levels of development this pressure was not considered to increase the risk of salinity.Consequence: The existing water quality is not suited to many uses - apart from stock and domestic. As a result, the impact if the risk materialised would be low due to minimal water users. The aquatic ecosystem would be sensitive to any changes in water quality. Uncertainty: Lacking monitoring data but land use suggests issue may be present.

WM62





(GS53)Groundwater Unlikely Minor Low High

Likelihood: It is unlikely that significant pH changes would occur in this resource unit due to a lack of drivers. Bore construction standards are in place to prevent intermixing between aquifers from drilling. Consequence: The existing water quality is not suited to many uses - apart from stock and domestic. As a result, the impact if the risk materialised would be low due to minimal water users. Uncertainty: There is a lack of monitoring data.

LM63










human use values).


(GS53)Groundwater Rare Minor Low Medium

Likelihood: The expert panel indicated that there are no drivers to increase nutrients as this resource unit is located in a region dominated by state forest, national park or native pastures. Consequence: The existing water quality is not suited to many uses - apart from stock and domestic. As a result, the impact if the risk materialised would be low due to minimal water users. The aquatic ecosystem would be sensitive to any changes in water quality. Uncertainty: Lacking monitoring data but land use suggests issue may be present.

LM64








human use values).


(GS53)Groundwater Rare Minor Low Medium

Likelihood: The expert panel indicated that there are no drivers to increase pesticides and other contaminants as this resource unit is located in a region dominated by state forest, national park or native pastures. Consequence: The existing water quality is not suited to many uses - apart from stock and domestic. As a result, the impact if the risk materialised would be low due to minimal water users. The aquatic ecosystem would be sensitive to any changes in water quality. Uncertainty: Lacking monitoring data but land use suggests issue may be present.


Comments/Rationale



LM65






human use values).


(GS53)Groundwater Rare Minor Low High

Likelihood: The expert panel indicated that there are no drivers to increase pathogens as this resource unit is located in a region dominated by state forest, national park or native pastures. Consequence: The existing water quality is not suited to many uses - apart from stock and domestic. As a result, the impact would be low due to minimal water users. Uncertainty: Lacking monitoring data but land use suggests issue may be present.

LM66






human use values).

Queensland MDB: Deep (GS56) Groundwater Rare Minor Low High

Likelihood: Due to the extreme depth of this resource unit, it would be rare for surface land and water management to impact the groundwater. Consequence: This resource unit is located below the Great Artesian Basin and is associated with the Bowen Basin (deep). This resource could be potentially accessed by petroleum and gas development in Condamine-Balonne. Coal seam gas and mining are activities regulated by the Department of Environment and Science. Impacts are regulated, managed and minimised through the Development Approval and Environmental Authority process. As a result, any water quality impacts will be managed through mining regulation. Uncertainty: Lacking monitoring data.

LM67










human use values).


Likelihood: Due to the extreme depth of this resource unit, it would be rare for surface land and water management to impact the groundwater.Consequence: This resource unit is located below the Great Artesian Basin and is associated with the Bowen Basin (deep). This resource could be potentially accessed by petroleum and gas development in Condamine-Balonne.Coal seam gas and mining are activities regulated by the Department of Environment and Science. Impacts are regulated, managed and minimised through the Development Approval and Environmental Authority process. As a result, any water quality impacts will be managed through mining regulation. Uncertainty: Lacking monitoring data.

LM68








human use values).


Likelihood: Due to the extreme depth of this resource unit, it would be rare for surface land and water management to impact the groundwater.Consequence: This resource unit is located below the Great Artesian Basin and is associated with the Bowen Basin (deep). This resource could be potentially accessed by petroleum and gas development in Condamine-Balonne. Coal seam gas and mining are activities regulated by the Department of Environment and Science. Impacts are regulated, managed and minimised through the Development Approval and Environmental Authority process. As a result, any water quality impacts will be managed through mining regulation. Uncertainty: Lacking monitoring data.

LM69






human use values).



LM70

Water being of a quality unsuitable for use pH outside natural ranges

A change in pH due to seepage from a surface

land use or mixing between aquifers.



human use values).



Sources •


Comments/Rationale



Risk assessment matrix

Insignificant Minor Moderate Major Catastrophic1 2 3 4 5

Rare 1 1 2 3 4 5Unlikely 2 2 4 6 8 10Possible 3 3 6 9 12 15Likely 4 4 8 12 16 20Almost certain 5 5 10 15 20 25

Level of RiskRisk ranking Scores Min MaxHigh 12–25 12 25Medium 8–11 8 11Low 1–7 1 7

LikelihoodConsequence

Please note, this is a working document developed …...Likelihood: Potential Hotspot: Preliminary...

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