Dust Management Plan - Iluka · PDF file1. Eneabba Wind Roses 1972 – 2008 2. Dust...

Dust Management Plan Eneabba Operations

Dust Management Plan Eneabba Operations June 2009

Document Control

Revision Details of review or changes Date created Document reference

A Original document, approved by DEP 2002

B Revised document June 2009 Trim No: 246621

Iluka Resources Limited ABN 34 008 675 018 140 St Georges Terrace Perth WA


Table of Contents

1. INTRODUCTION 1 1.1 OPERATION DESCRIPTION AND BACKGROUND 1

1.1.1 Environmental Setting 1 1.1.2 Climate 2

1.2 CURRENT STATUS 2 1.3 PURPOSE AND SCOPE 2 1.4 RELATED DOCUMENTS 2 1.5 REGULATORY CONTEXT 2

2. POTENTIAL IMPACTS 4 2.1 REGIONAL SOURCES 4 2.2 MINING SOURCES 4 2.3 HEALTH IMPACTS OF PARTICULATES 4 2.4 IMPACT ON AMENITY 5 2.5 IMPACT ON VEGETATION 5 2.6 SENSITIVE RECEPTORS IN THE VICINITY OF THE MINE 5

3. ENVIRONMENTAL OBJECTIVES AND PERFORMANCE INDICATORS 9

4. IMPLEMENTATION STRATEGY AND MANAGEMENT ACTIONS 10

5. MONITORING 11 5.1 PM10 MONITORING 12 5.2 TOTAL DUST (TSP) SAMPLING 12 5.3 MONITORING OF ECOLOGICAL RECEPTORS 13

6. CONTINGENCIES 13

7. STAKEHOLDER CONSULTATION AND INVOLVEMENT 14

8. AUDITING 14

9. REVIEW AND REVISION 14

10. REPORTING 15 10.1 PERFORMANCE REPORTING 15 10.2 INCIDENT REPORTING 15 10.3 COMPLAINT HANDLING 15

11. REFERENCES 16

List of Tables

1. Environmental Objectives, Targets and Performance Indicators 9 2. Management Actions for Dust 10 3. Monitoring Actions for Dust 12 4. Contingency Actions 13


List of Figures

1. Iluka Eneabba Mining Process 1 2. Nearest Residential Neighbours and Dust Monitoring Locations 7 3. Long Term Daily Average PM10 Dust Levels 11

List of Appendices

1. Eneabba Wind Roses 1972 – 2008 2. Dust Management Requirements

Dust Management Plan Eneabba Operations Page 1 June 2009

1. INTRODUCTION

1.1 Operation Description and Background

Iluka Resources Limited (Iluka) operates a mineral sands mine near Eneabba, in Western Australia. The mine currently processes approximately 18 million tonnes of ore per annum, with Heavy Mineral Concentrate (HMC) transported by rail to Narngulu for processing and export. The Eneabba mine site is surrounded by both agricultural farmland and native vegetation.

The mining process used at the site begins with vegetation clearing and topsoil stripping. Overburden is removed by heavy mobile equipment and stockpiled or placed directly into pits which have been previously mined. Sand containing ore is screened by mining units to remove rocks and gravel (oversize material). It is then slurried and pumped to the O3 or Newman Concentration plants where the heavy mineral component is removed by gravity separation (refer to flow chart below). The sand and clay components remaining after ore separation are mixed and co-disposed back into the mined pits and dries prior to rehabilitation. Oversize material is returned to mining pits as well as being used for soil stabilisation and road construction (Figure 1).

Vegetation cleared prior to mining is mulched and applied to rehabilitation areas, both for erosion protection and a seed source. Topsoil that is stripped prior to mining is either transferred directly onto new rehabilitation areas or stockpiled for later use.

Figure 1 Iluka Eneabba Mining Process

1.1.1 Environmental Setting

Eneabba is located approximately 30 km inland, on the eastern edge of the Swan Coastal Plain section of the Northern Perth Basin which extends from Gingin to Geraldton (Kern 1997). The mine is located within the Eneabba Plain, a northward extension of the Bassendean Dune System of the Swan Coastal Plain, between the coastal belt and the Gingin Scarp. The landscape within


the mining area typically consists of dunes or low hills with alluvial plains with shallow to deep calcareous and siliceous sands (Stuart-Street 2007).

1.1.2 Climate

Climate in the Eneabba region is characterised by hot, dry summers and cool wet winters. The majority of the annual rainfall (annual rainfall being 504.5 mm yr-1) is received between May and September, with little rainfall during the summer months (e.g. the mean rainfall for January is 7.3 mm) (BOM 2007).

Summer months generally have strong easterly winds in the mornings followed by strong south westerly winds in the afternoons (mean summer 9am and 3pm wind speeds average approximately 19 km.hr-1 (5 m.s-1)). Winter months experience moderate easterly winds in the mornings and moderate to strong west-north-westerly winds in the afternoons. More than 25% of summer days experience winds greater than 28.8 km.hr−1 (8 m.s-1) (Bell et al. 1986). Wind Roses for Eneabba, as supplied by the Bureau of Meteorology, are shown in Appendix 1.

1.2 Current Status

Mining operations at Eneabba have been ongoing since the 1970s. Current mining operations are located in areas to the north, east and south of Eneabba town. Rehabilitation is undertaken progressively to minimise the amount of area open to wind erosion.

Mining operations on the west of the Brand Highway ceased in 1999 and are still undergoing rehabilitation.

1.3 Purpose and Scope

This management plan relates to the monitoring and management of dust emissions at the Iluka Eneabba Operation. It applies to current mining operations at the Eneabba East Mine, and rehabilitation operations on the Eneabba West Mine.

This Dust Management Plan excludes Occupational Health aspects of dust management which are addressed in the Iluka Midwest Operations Radiation Management Plan.

1.4 Related Documents

Additional Iluka documents with a dust management component include:

• Mulching Management Plan

• Rehabilitation Management Plan

• Radiation Management Plan

A study to assess the erodibility of mine rehabilitation surfaces at Eneabba has previously been undertaken (Bell et al. 1986). This study showed that newly landscaped areas proved to be the most erodible, beginning to erode at a windspeed of 32.4 km.hr-1 (9 m.s−1). Sandier, more organically-rich surface soils in the rehabilitation areas were somewhat less erodible.

1.5 Regulatory Context

Dust management obligations are set out in the Iluka DEC licence 5646, and includes a requirement to comply with a Dust Management Plan (see Appendix 2). This document supersedes the Dust Management Plan 2002 referenced in licence 5646/8.

The Eneabba operation is being formally assessed by the EPA at the level of Environmental Review and Management Program (ERMP). The scope of the ERMP requires development of a Dust Management Plan, the conditions of which are expected to become requirements of Ministerial Conditions for the Eneabba mine site.


Iluka is also required to comply with the Environmental Protection (Unauthorised Discharges) Regulations 2004 for generation of dust within the premises.

Other Regulatory Documents which have been reviewed and applied to this Dust Management Plan include:

• DEC (2008) A guideline for the development and implementation of a dust management program (Draft).

• The National Environmental Protection (Ambient Air Quality) Measure

• EPA Victoria (2006) State Environment Protection Policy (Air Quality Management) Mining and Extractive Industry, Consultation Draft Protocol for Environmental Management


2. POTENTIAL IMPACTS

In the assessment of environmental impacts, dust is more conveniently referred to as ‘particulates’ or ‘airborne particulates’. Relevant to the Iluka site, the following terms are also used in this plan:

• Total suspended particulates (TSP): all particles that are suspended in the atmosphere

• PM10: particulate matter with an equivalent aerodynamic diameter of 10 µm or less

2.1 Regional Sources

Airborne particulates can originate from both anthropogenic and natural processes in the landscape. These sources may affect air quality on either a local of regional scale. Airborne particulate sources in the vicinity of the Iluka mine operation include:

• Mechanical land disturbance from surrounding pastoral properties (eg. clearing of vegetation, tillage)

• Vehicle movement along unsealed haul roads, rail line, tracks and paddocks (including entrained material and emissions)

• Live stock movements and overstocking

• Burning and incineration (eg. backyard burning, residential wood-fired heaters, wildfires, burning off)

2.2 Mining Sources

A wide range of mining activities can generate dust, and these are usually visible and readily identifiable. The potentially significant sources of airborne particulates from the site have been assessed as being limited to:

• dust lift off from exposed mining areas, open areas or rehabilitated surfaces;

• dust lift off from stockpiles (overburden, topsoil and mined concentrate);

• dust lift off from haul roads and tracks resulting from light vehicle and heavy earthmoving traffic;

• dust generation from crushing and screening processes, prior to wet separation process (eg. mining units); and

• loading and transportation of ore material.

The majority of any airborne particulates from the site are likely to be visible dust, with a potential for some fine particulate (PM10). Combustion or point source stack emissions of particulates are generated from drying stacks associated with dryers at the South Secondary Concentrator.

2.3 Health Impacts of Particulates

Epidemiological studies show associations between elevated PM10 concentrations and higher than normal levels of hospital admissions, respiratory illness and asthma attack (NSW Minerals Council 2000).

People at risk of exposure to dust at the Iluka Eneabba operations include mine workers, adjacent land users and the residents of the Eneabba town site.


2.4 Impact on Amenity

In dry, windy conditions particulates can be lifted from open or disturbed areas resulting in visible dust emissions. Most airborne particulates that originate from these sources are larger than PM10 and are associated with nuisance rather than public health problems. The larger particles tend to settle back to the ground within a short range (<300 m) from the source. Dust emissions of this type can cause reduced amenity of an area and reduce visibility for road traffic, potentially creating unsafe driving conditions.

2.5 Impact on Vegetation

Dust may have physical effects on plants such as: blockage and damage to stomata, shading, abrasion of leaf surface or cuticle, and cumulative effects, e.g. drought stress on already stressed species (NSW Minerals Council 2000). There are no dust deposition guidelines relating to health or condition rating of plant species.

The effect of soil erosion can render an area incapable of promoting vegetation growth, which affects rehabilitation programs.

2.6 Sensitive Receptors in the Vicinity of the Mine

The following areas have been identified as sensitive receptors in the receiving environment relevant for the Iluka Eneabba operations:

• Eneabba town site

• Brand Highway and travelling motorists

• Native Vegetation

• Declared Rare Flora

• Neighbouring pastoralists

The distance to sensitive receptors varies considerably, as mining operations progress across large areas quickly. Figure 2 identifies the locations of nearest neighbouring landholders, which are considered sensitive receptors in relation to mining activities.

FIGURE:(A4)ORIG: DRAWN: SCALE: DATE: DWG No:

Eneabba Town

Resident A

Resident BResident C

Resident D

Resident E

h

hENE7

ENE3 (background)

Resident F

Resident G

Resident H

Resident I

Resident J

Brand H

ighway

Seco

nd

Nor

th

R

oad

Erin

doon

R

oad

Din

g

R

oad

Eneabba Three-Springs Rd

Coolimba Eneabba Road

Carnamah Eneabba Road

Beekeepers Road

Highway

Brand

ENE6

ENE5

ENE4 ENE2

ENE1

ENE8

h

h

h

Background TEOM

Eneabba Town TEOM

2S.Barron D.G.S. 24 Nov. 2008 190335 ver.001:150,000

ENEABBANEAREST RESIDENTIAL NEIGHBOURS AND DUST MONITORING LOCATIONS

LegendBackground TEOM Dust Monitor

Eneabba Town TEOM Dust Monitor

Depositional Dust Monitor

Iluka tenements - granted

Detailed photography flown: 6 Nov 2008Regional photography flown: 2006

0 2.5 5 km

hhh

N


3. ENVIRONMENTAL OBJECTIVES AND PERFORMANCE INDICATORS

The primary objective of this Dust Management Plan is to prevent significant impacts on amenity, human health and significant environment values.

This objective will be achieved through establishing:

• measurable environmental performance indicators and targets;

• relevant dust control management actions and responsibilities; and

• a monitoring system that can report performance against these targets.

Environmental objectives, targets and performance indicators have been identified that will ensure sensitive receptors are protected and are described in Table 1.

Table 1 Environmental Objectives, Targets and Performance Indicators

Reference Management objective Target Performance indicators

Dust 01 PM10 dust emissions generated by mining operations remain below background

Eneabba Town TEOM dust levels to remain below Depot Hill “background” TEOM over 24 hr average.

Real time dust monitoring data as recorded by the Eneabba Town and Depot Hill (background) TEOMs.

Dust 02 Nuisance dust generated by mining operations remains contained within the active mining area

Depositional Dust Monitors to remain within 2 g/m

2/month of background

monitors.

Monthly depositional dust monitoring data

Dust 03 Particulate emissions from drier stacks at the South Secondary Concentrator do not exceed 250 mg/m

3

Particulate emissions of Drier stacks 201 and 301 to remain below 250 mg/m

3

Quarterly monitoring of particulates


4. IMPLEMENTATION STRATEGY AND MANAGEMENT ACTIONS

Key management actions have been identified to assist in achieving the dust management objectives (Table 2).

Table 2 Management Actions for Dust

Parameter Action Timing Responsibility Induction Inductions for all employees will include information on:

• Potential sources of dust • Monitoring program and licence conditions • Loss Control Card system for fugitive dust • Speed limits onsite and staying on designated roads.

Induction

Environmental Superintendent

Windy conditions Monitor wind and weather forecasts (Bureau of Meteorology) and cease non-essential mining operations (i.e. topsoil stripping) during excessively windy conditions1.

Ongoing Mine Superintendent

Traffic Adhere to site speed limits and designated roads. Ongoing All Employees and Contractors

Minimise open areas exposed to wind erosion as much as practical by completing an annual assessment of areas suitable for stabilisation, and carrying out stabilisation works.

Pre winter Rehabilitation Superintendent

Open Area

Tree shelter belts will be maintained along site boundaries where appropriate, to assist with containing dust lift-off from open areas.

Winter Rehabilitation Superintendent

Operate at least two dedicated water carts during dry, windy conditions and during the summer months, across the site to apply water to unsealed operational areas (i.e. roads and loading areas).

Ongoing Mine Manager

All unsealed roads being used for heavy vehicle traffic within the mine area will be treated with dust suppressant additives where appropriate.

Ongoing Mining Supervisor

Apply clay fines2 or oversize material to all non-active stockpiles prone to wind erosion, within four weeks of disturbance (depositing or moving) during the summer months.


Dust suppression

Maintain sprinkler systems and shade-cloth barrier fencing in an operational condition surrounding the dust prone areas of the site (ie HM stockpiles).


Conduct topsoil stripping only during suitable wind and weather conditions, so as to minimise the generation dust. Topsoil stripping will be conducted in areas proposed for mining no more than two months before mining commences, wherever practical.

Pre mining phase Senior Mine Planner

Clearing and mining

After re-establishment of the soil profile (post mining), vegetative cover will be established within 8 months, as part of the progressive rehabilitation program.

Post mining phase

Rehabilitation Superintendent

Material handling Implement loading and unloading procedures to ensure that dust emissions from material handling is minimised (eg. minimise drop heights).

Ongoing Mining Supervisor

1. Shut down periods during excessively windy conditions will be determined following a risk assessment of impact to various sensitive receptors, including motorists on adjacent public roads and mining employees.

2. Clay fines are a by-product of the mining process and are effective dust suppressants, in place of chemically manufactured additives.


5. MONITORING

Monitoring is required to enable an assessment of the effectiveness of the dust management controls and improvements to be made where required.

A detailed dust monitoring program already occurs at the Iluka Eneabba Operations. Continuous Ambient Particulate dust monitors (TEOM models) are located between the town of Eneabba and the North Mine operation, and on the eastern boundary of the operation in Depot Hill (Figure 2). Background dust levels at the Depot Hill station are often recorded to exceed those of the Eneabba Town TEOM station during strong easterly winds, which are common between October and April. Daily (24hr) average PM10 readings from January 2005 to November 2008 are demonstrated in Figure 3 below.

Long Term Daily Average Dust Levels

2005 - 2008

0

20

40

60

80

100

120

140

160

180

1/0

1/2

00

5

1/0

3/2

00

5

1/0

5/2

00

5

1/0

7/2

00

5

1/0

9/2

00

5

1/1

1/2

00

5

1/0

1/2

00

6

1/0

3/2

00

6

1/0

5/2

00

6

1/0

7/2

00

6

1/0

9/2

00

6

1/1

1/2

00

6

1/0

1/2

00

7

1/0

3/2

00

7

1/0

5/2

00

7

1/0

7/2

00

7

1/0

9/2

00

7

1/1

1/2

00

7

1/0

1/2

00

8

1/0

3/2

00

8

1/0

5/2

00

8

1/0

7/2

00

8

1/0

9/2

00

8

1/1

1/2

00

8

Date

Res

pir

ab

le D

us

t L

ev

els

PM

10

(u

g /

m3)

NEPM Exceedance level Background TEOM (East of Mine) Eneabba Town TEOM

Figure 3 Long Term Daily Average PM10 Dust Levels

The monitoring approach established in this plan incorporates aspects that are used to demonstrate performance, namely the continuation of existing total dust monitoring at the site (TSP and PM10) and regular site inspections. These are described further in Table 3.


Table 3 Monitoring Actions for Dust

Parameter Frequency Location Purpose Responsibility

PM10 Continuous Existing monitoring locations (Figure 2).

To monitor health impacts on population of Eneabba Town and Iluka employees and contractors.

Environmental Specialists

Total dust sampling (TSP)

Continuous Existing monitoring locations (Figure 2); and others to be established as mining progresses.

To monitor nuisance dust impacts on sensitive receptors; including motorists travelling on the Brand Highway and areas of significant native vegetation.


Level of visible dust or dust lift–off

Opportunistic (approximately daily), where there is potential for dust emissions

Current mining operations

To assess the effectiveness of dust management actions; more intensive monitoring to occur under windy conditions.

All Employees and Contractors

New surface stability

Monthly (up to 12 months after new surface is created)

Newly cleared areas, new rehabilitation areas

Ensure newly disturbed areas are stable and not emitting dust

Rehabilitation Supervisor

Particulate Emissions

Quarterly Drier stacks at South Secondary Concentrator

To ensure total particulate emissions do not exceed the DEC guideline limit of 250 mg/m

3


5.1 PM10 Monitoring

Dust is monitored at the 10 micron fraction (PM10) using two Rupprecht and Pataschnick 1400a TEOM Ambient Particulate Monitors with direct telemetry to the control room. The Eneabba Town TEOM was established in 2004, and the background monitor established in 2005. Both monitor PM10 dust emissions on a continuous basis. The monitors are calibrated and serviced on a quarterly basis by qualified consultants. The location of the PM10 monitor locations are shown in Figure 2.

The National Environmental Protection (Ambient Air Quality) Measure sets a maximum allowable level of 50 ug/m3 over a 24 hour period, for Ambient Air Quality. This level is used as a trigger level for continuous monitoring of PM10, as defined by DEC licence conditions (Appendix 2). Any exceedance of this trigger level at the Eneabba town TEOM is considered in the context of the background reading at the Depot Hill TEOM.

5.2 Total Dust (TSP) Sampling

Depositional dust gauges were established in July 2007 to determine impacts of nuisance dust from mining areas on the Brand Highway and other areas not covered by the continuous TEOM monitors. Dust levels downwind of the mining operations are assessed against a nuisance dust trigger level of 2 g/m2/month above the background monitor. This background depositional dust gauge is located directly adjacent to the background TEOM monitor, to allow for correlation of data (refer to Figure 2). This nuisance dust trigger level is drawn from the EPA Victoria State Environment Protection Policy (Air Quality Management) Mining (2006).

Dust gauges have been established and monitored in accordance with AS/NZ standards Methods for Sampling and Analysis of Ambient Air; 3580.10.1:2003 (Determination of Particulate Matter – Deposited Matter – Gravimetric Method), and AS3580.1.1.2007 (Guide to Siting Air Monitoring Equipment). The monitoring locations current in 2008 are shown in Figure 2. Other monitoring sites will be established as mining progresses into areas not currently monitored to ensure that impacts on sensitive receptors are assessed. Sites will be established to monitor both background emissions and mining impacts.


5.3 Monitoring of Ecological Receptors

Specific monitoring for the potential impacts of dust deposition on flora will be undertaken. This will be conducted to complement the vegetation health monitoring program outlined in the Vegetation Protection Plan. Dust monitoring will be conducted using Depositional Dust Gauges located in close proximity to conservation significant flora, in particular, Declared Rare Flora locations that are perceived to be at risk of impact from mining operations.

6. CONTINGENCIES

During windy conditions, it is possible that dust emissions may still be generated from the site. The following management actions will be taken to ensure that dust levels generated by mining activities do not create unacceptable impacts:

• All site staff will be responsible for reporting high or abnormally dusty conditions to the Site Superintendent or Mine Manager as soon as is reasonably practicable.

• If an activity is causing high or abnormally dusty conditions (as determined by visual assessment and prescribed licence conditions), the activity will cease until weather conditions change or appropriate dust controls are put in place to ameliorate the dust emissions.

• Dust levels will continue to be monitored in accordance with the commitments of this management plan (above).

Contingency actions, with associated triggers, are described in Table 4.

Table 4 Contingency Actions

Trigger Action Responsibility

Exceedance of the PM10 trigger levels Investigate if the Eneabba operations were responsible for the exceedance and implement controls to prevent any further exceedances.

Mine Superintendent (or their delegate)

Excessive dust emissions crossing Brand Highway or Three Springs Road

Stand down non-essential mobile equipment and mining operations to minimise dust emissions.


Visible dust emissions occurring from mining areas or new surfaces

Investigate cause and implement necessary controls to prevent further emissions (for example cease work in peak wind periods or increase frequency of watering)


Mine personnel not aware of Dust Management Plan

Review site induction content and delivery Environmental Specialists


7. STAKEHOLDER CONSULTATION AND INVOLVEMENT

Iluka employs a full-time Community Relations Advisor, and engages regularly with the nearby landowners regarding environmental management issues.

Iluka also engages in regular consultation with the following stakeholders regarding dust emissions and management strategies:

• Department of Environment and Conservation

• Eneabba Progress Association

• Shire of Carnamah

8. AUDITING

Iluka will assess its compliance with this Dust Management Plan and with the existing licence on an annual basis or as required for specific projects. Iluka will submit the annual compliance reports to the Chief Executive Officer of the Department of Environment and Conservation (DEC) no later than by 15 March each year.

Audits conducted will be both internal and external with findings recorded and used to ensure continual improvement of management strategies.

9. REVIEW AND REVISION

This management plan will be reviewed and revised by Iluka:

• on a three-yearly basis;

• if there are major changes to the project or its operations;

• in response to issues raised by the DEC;

• in response to issues raised through community feedback; and

• in response to any incident which results in a failure to meet any of the commitments of this Plan.


10. REPORTING

10.1 Performance Reporting

Dust control activities and monitoring results will be made available for stakeholder review in the Annual Environmental Report (AER) which is completed and submitted by the 15th March each year. The success of any dust suppression methods trialled and used during the year will also be reported in the AER.

10.2 Incident Reporting

In accordance with the Iluka Loss Control Card reporting system, incidences of high dust levels will be reported to Iluka site management, and recorded in the electronic incident database system. The same system is used for the management of complaints. Management responses to prevent any further impacts and control or mitigate further dust emissions will be formulated, tracked and implemented.

In accordance with the site DEC licence, any incidents that constitute a breach of conditions will be reported to the Department of Environment and Conservation (DEC) immediately.

10.3 Complaint Handling

All complaints received by Iluka employees, including night shift and control room operators, are handled according to the Iluka COMMUNITY COMMENT & COMPLAINT PROCEDURE (PRC3062).

All complaint receivers are required to:

1. Collect all details from the complainant (time, location, concerns)

2. Repeat back and confirm details with the complainant

3. Confirm acceptable follow up time/day with complainant

4. Advise relevant Supervisor immediately

5. Complete forms below and send to relevant Supervisor:

− Community Comment and Complaint Form (CCCF – Part A)

− Site Conditions Log if applicable (plant and weather conditions)

− Loss Control Card (LCC)

Site management, the Community Relations Officer and the Environmental Specialist are to be advised within 24 hours of receipt of the complaint.

The complainant will be contacted and an investigation of the complaint initiated within 24 hours of the receipt of the complaint.

Following the investigation, the complainant is to receive a written response outlining the investigation procedure and findings. If requested the findings of the investigation will be explained and discussed with the complainant “in person”.

Details of the complaint, the investigation, management actions implemented and follow up is recorded within the incident database system. All complaints recorded are included in the AER annually.


11. REFERENCES

Bell D.T, Carter D.J., Hetherington R.E. (1986) Experimental assessment of wind erosion after soil stabilization treatments at Eneabba, Western Australia, Environmental Geochemistry and Health, Vol 8, No. 4

Bureau of Meteorology (2007), Climate Statistics for Australian Locations – Monthly Climate Statistics for ENEABBA, 2007, http://www.bom.gov.au/climate/averages/tables/cw_008225.shtml, 5 December 2007.

Department of Environment and Conservation (2007), Eneabba East Operations - Licence no: 5646/8, 26 February 2007

DEC (2008) A guideline for the development and implementation of a dust management program (Draft).

EPA Victoria (2006) State Environment Protection Policy (Air Quality Management) Mining and Extractive Industry, Consultation Draft Protocol for Environmental Management

Kern, A. M. (1997), Hydrogeology of the coastal plain between Cervantes and Leeman, Perth Basin, Water and Rivers Commission, Hydrogeology Record Series No HG 3.

NSW Minerals Council (2000), Particulate Matter and Mining, A NSW Minerals Council Technical Paper, New South Wales, July 2000.

Stuart-Street, A. (2007), ‘Climate’; in Resource Management Technical Report 315: West Midlands Region Catchment Appraisal 2007, Department of Agriculture and Food, Government of Western Australia, Perth, Western Australia.

National Environment Protection Council (1998), National Environment Protection Measure for Ambient Air Quality, Adelaide, South Australia.

Appendix 1 Eneabba Wind Roses 1972 – 2008

Appendix 2 Dust Management Requirements

The EPA normally applies the following objective in its assessment of proposals that may generate dust emissions. This objective is considered relevant to the Iluka Eneabba operations:

“To ensure that dust emissions do not adversely affect environmental values or the health, welfare and amenity of people and land users by meeting statutory requirements and acceptable standards”

The DEC Eneabba East operating licence, number 5646/8, currently prescribes the following air pollution control conditions:

DUST - GENERAL REQUIREMENT

A1 The licensee shall use the dust management measures outlined in the “Iluka Dust Management Plan” to suppress all visible dust, resulting from materials handling operations, stockpiles, open areas and transport activities, from crossing the Premises boundary.

DUST – AMBIENT MONITORING

A2(a) The licensee shall operate and maintain appropriate dust monitoring equipment capable of measuring dust levels generated from mining activities on the Premises at or close to the nearest residences to the Eneabba operations. The dust monitors will:

i. utilise high volume samplers or real time dust monitoring equipment

ii. be located at the Eneabba townsite

iii. be located upwind of the Depot Hill mining activities

iv. operate on a daily basis throughout the year

v. measure the PM10 average on a 24-hour basis.

A2(b) The licensee shall ensure that all equipment and activities at the Premises are operated throughout the period of this Licence in a manner such that the following ambient limits are not exceeded:

Parameter Units Averaging Time Limit Allowed Exceedances (days per year)

Particles (PM10) Micrograms per cubic metre

24 hours 50 µg/m3 5

MONAZITE BLENDING - DUST CONTROL

A3(a) The Licensee shall ensure that the gates at the entry and exit points of the monazite blending unit are closed at all times, except while monazite tailings are unloaded from trucks.

A3(b) The Licensee shall ensure that the monazite blending unit is filled so that the highest point of the monazite tailings is not in contact with the steel grates covering the unit.

Dust Management Plan - Iluka · PDF file1. Eneabba Wind Roses 1972 – 2008 2. Dust...

Documents

Transcript of Dust Management Plan - Iluka · PDF file1. Eneabba Wind Roses 1972 – 2008 2. Dust...