Appendix F GHD (2018) Odour and Noise Report
Transcript of Appendix F GHD (2018) Odour and Noise Report
Appendix F GHD (2018) Odour and Noise Report
Yumbah Nyamat Works Approval Application October 2018
A d
Yumbah Aquaculture Ltd
Yumbah Aquaculture Planning & Works Approval
Odour & Noise Impact Assessment for Proposed Nyamat Abalone Aquaculture Facility
October 2018
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | i
Glossary
Term Description
AWS Automatic Weather Station
Background Noise
Level
For a day, evening or night period means the arithmetic average of the LA90
levels for each hour of that period for which the commercial, industrial or trade
premises under investigation normally operates. The background level shall
include all noise sources except noise from commercial, industrial or trade
premises which appear to be intrusive at the point where the background level
is measured (Victorian Government, 1989).
dB Unit of measurement for Sound Pressure Level known as a decibel, which is
10 times the logarithm (base 10) of the ratio of a given sound pressure to a
reference pressure; used as a unit of sound.
dB(A) ‘A-weighted’ decibel measurement as specified in Australian Standard AS IEC
61672- 2004 Electroacoustics - Sound level meters or its replacements..
EPA Environment Protection Authority.
GDA94 The Geocentric Datum of Australia is a system of latitudes and longitudes, or
east and north coordinates used to track locations.
LAeq (period Equivalent sound pressure level: the steady sound level that, over a specified
period of time which would produce the same energy equivalence as the
fluctuating sound level actually occurring.
LA1 (period) The sound pressure level that is exceeded for 1% of the measurement period.
LA10 (period) The sound pressure level that is exceeded for 10% of the measurement period.
LA90 (period) The sound pressure level that is exceeded for 90% of the measurement period.
LAmax The maximum sound level recorded during the measurement period.
LAmin The minimum sound level recorded during the measurement period.
Lin LIN or linear is a device or circuit with a linear characteristic, meaning that a
signal passing through the circuit is not distorted and/or it excludes a filter.
Mitigation Reduction in severity.
NIRV Noise from Industry in Regional Victoria (NIRV) - recommended maximum
noise levels from commerce, industry and trade premises in regional Victoria -
Publication 1411 October 2011 (Authorised and published by EPA Victoria,
200 Victoria Street, Carlton.)
Pig (pigging) In pipe cleaning system consisting of a firm fitting plug pushed done the pipe
under pressure to scrape the sides of the pipe free of scale, barnacles and
other crustaceans adhering to the pipe.
Some early cleaning "pigs" were made from straw bales wrapped in barbed
wire or leather, both made a squealing noise sounding like a pig, hence the
name.
Source: https://en.wikipedia.org/wiki/Pigging (accessed 20 August 2018)
Project Specific
Criteria
The project specific level is the more stringent of the intrusive and amenity
criteria.
Receiver
(Sensitive Use)
A noise modelling term used to describe a map reference point where noise is
predicted. A sensitive receiver would be a home, work place, church, school or
other place where people spend time at which noise from the development can
be heard. The assessment in this report looks at impacts within 10 m of the
façade of the building as defined in the SEPP-N1.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | ii
Term Description
SEPP-N1 State Environment Protection Policy (Control of Noise from Commerce,
Industry and Trade) No. N–1 No. S31, 16/5/1989, Gazette 15/6/1989;
- As varied 15/9/1992, No. G37, Gazette 23/9/1992
- As varied 31/10/2001, No. S183, Gazette 31/10/2001
Sound Pressure
Level (SPL)
The Sound Pressure level is the change in air pressure above and below the
average atmospheric pressure (amplitude) caused by a passing pressure
wave; this is then converted to decibels and can be abbreviated as SPL or Lp.
The SPL can be calculated as:
𝑆𝑃𝐿 𝑜𝑟 𝐿𝑝 = 10 𝐿𝑜𝑔10 (𝑃2
𝑃02⁄ ) [𝑑𝐵]
or more simply
𝑆𝑃𝐿 𝑜𝑟 𝐿𝑝 = 20 𝐿𝑜𝑔10 𝑃 + 94 [𝑑𝐵]
Where:
SPL or Lp = Sound Pressure Level
P = Root-mean-square (rms) sound pressure (Pascals or Pa)
P0 = International reference pressure 20 micropascals.
Sound Power Level
(PWL)
This is defined as the average rate at which sound energy is radiated from a
sound source and is measured in watts (W). The Sound Power Level can be
abbreviated as PWL or Lw.
The PWL can be calculated as:
𝑃𝑊𝐿 𝑜𝑟 𝐿𝑤 = 10 𝐿𝑜𝑔10 (𝑊𝑊0
⁄ ) [𝑑𝐵]
or more simply
𝑃𝑊𝐿 𝑜𝑟 𝐿𝑤 = 10 𝐿𝑜𝑔10(𝑊) + 120 [𝑑𝐵]
Where:
PWL or Lw = Sound Power Level
W = acoustic energy of the source given in watts (W)
W0 = International reference sound power of 10-12 Watt (W)
VPP Victoria Planning Provisions
VPS Victoria Planning Scheme
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | iii
Table of contents
Glossary .............................................................................................................................................. i
1. Introduction ............................................................................................................................... 1
1.1 Background ..................................................................................................................... 1
1.2 Purpose of this report ...................................................................................................... 1
1.3 Scope and limitations ...................................................................................................... 3
1.4 Assumptions.................................................................................................................... 3
1.5 Scope of works ................................................................................................................ 4
2. Land zoning .............................................................................................................................. 6
3. Proposed facility ........................................................................................................................ 8
4. Meteorology .............................................................................................................................. 9
4.1 Choice of meteorological dataset ..................................................................................... 9
5. Odour assessment .................................................................................................................. 13
5.1 Victorian planning and odour guidelines......................................................................... 13
5.2 Sensitive receiver locations ........................................................................................... 14
5.3 Potential odour sources ................................................................................................. 15
6. Operational noise assessment................................................................................................. 18
6.1 Existing noise environment ............................................................................................ 18
6.2 Background noise monitoring ........................................................................................ 21
6.3 Applicable noise criteria ................................................................................................. 26
6.4 Environmental noise impact ........................................................................................... 32
7. Construction noise and vibration .............................................................................................. 48
7.1 Noise criteria ................................................................................................................. 48
7.2 Vibration criteria ............................................................................................................ 50
7.3 Modelling of construction noise impact........................................................................... 53
7.4 Noise and vibration impact management ....................................................................... 56
8. Conclusion .............................................................................................................................. 61
8.1 Odour assessment ........................................................................................................ 61
8.2 Operational noise assessment ....................................................................................... 61
8.3 Construction noise assessment ..................................................................................... 62
8.4 Construction vibration assessment ................................................................................ 62
8.5 Required noise mitigation .............................................................................................. 62
8.6 Additional noise mitigation and considerations ............................................................... 62
9. Bibliography ............................................................................................................................ 63
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Table index
Table 1 Sensitive receivers ........................................................................................................ 18
Table 2 Prescribed assessment periods ..................................................................................... 21
Table 3 Background noise measurement instrumentation ........................................................... 21
Table 4 Summary of unatttended noise monitoring results at Location 1 ..................................... 22
Table 5 Summary of unatttended noise monitoring results at Location 2 ..................................... 23
Table 6 Attended noise measurement equipment details ............................................................ 24
Table 7 Summary of attended background noise measurement results ...................................... 25
Table 8 Applicable criteria .......................................................................................................... 28
Table 9 Derived NIRV noise criteria for the nearest identified receivers dB(A) LAeq ..................... 30
Table 10 Calculated SEPP N-1 zoning levels at the identified sensitive receivers ......................... 31
Table 11 Emergency criteria ........................................................................................................ 32
Table 12 Site equipment at Narrawong site (images taken 28/11/2017) ........................................ 33
Table 13 Measured noise sources at Narrawong facility ............................................................... 35
Table 14 Equipment modelled for Nyamat facility ......................................................................... 37
Table 15 Minimum sound transmission loss through various buildings dB(A) ................................ 39
Table 16 Minimum sound transmission loss for canals dB(A) ....................................................... 40
Table 17 Stack attenuation dB(A) ................................................................................................. 40
Table 18 Predicted sound pressure levels dB(A) at modelled receivers ........................................ 41
Table 19 Construction and demolition guideline levels, EPA Publication 1254 .............................. 49
Table 20 Calculated construction noise limits ............................................................................... 50
Table 21 Construction and demolition recommendations: DIN 4150 ............................................. 51
Table 22 Short term vibration on pipework (peak component level mm/s) ..................................... 52
Table 23 Guidance on effects of vibration levels (BS 5228.2) ....................................................... 52
Table 24 Vibration Dose Values (m/s1.75) above which various degrees of adverse
comment may be expected in residential buildings......................................................... 53
Table 25 Predicted construction noise levels for modelled scenarios, dB(A) ................................. 55
Table 26 Typical attenuations for source to receptor noise control methods.................................. 59
Table 27 Recommended safe working distances for vibration intensive plant................................ 59
Figure index
Figure 1 Site location plan ............................................................................................................. 2
Figure 2 Planning zones ................................................................................................................ 7
Figure 3 Proposed facility layout .................................................................................................... 8
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | v
Figure 4 Annual and seasonal wind roses at Portland NTC Site: 90192 ....................................... 10
Figure 5 Annual and seasonal wind roses at Portland Airport Site: 90171 .................................... 11
Figure 6 Frequency of winds ....................................................................................................... 12
Figure 7 Mortality bin at Narrawong facility .................................................................................. 16
Figure 8 Mortality bin at Narrawong facility, showing the lime and sand cover used ..................... 16
Figure 9 Waterbirds on wastewater treatment pond at Narrawong ............................................... 17
Figure 10 Sensitive receiver locations ........................................................................................... 20
Figure 11 Instrumentation set up for unattended measurements at location 1 ................................ 22
Figure 12 Instrumentation set-up for unattended measurements at location 2 ................................ 22
Figure 13 Damaged cable at Dutton Way logger site ..................................................................... 23
Figure 14 Areas covered by SEPP N-1 and Planning UGB (EPA Victoria, 2011) ........................... 26
Figure 15 Portland major urban area boundary (EPA Victoria, 2011) ............................................. 27
Figure 16 Predicted noise contours for Scenario A – Normal Operations ....................................... 45
Figure 17 Predicted noise contours for Scenario B - Emergency.................................................... 46
Figure 18 Model Overview ............................................................................................................ 47
Figure 19 Comparison of vibration criteria in accordance with different standards .......................... 51
Appendices
Appendix A – Frank Lodge scenic lookout
Appendix B – Dutton Way
Appendix C – Site plans
Appendix D – Typical construction plant and equipment noise levels
Appendix E – Construction noise modelling scenario
Appendix F – Construction noise contours for modelling scenario
Appendix G – Meeting recommended construction noise criteria
Appendix H – Acoustic attenuation data for mitigation of construction noise
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 1
1. Introduction
1.1 Background
Yumbah Aquaculture Limited (hereafter referred to as ‘Yumbah’) is an abalone farming business
that has farms in Tasmania, South Australia and Victoria. The Victorian farm located in
Narrawong produces 220 tonnes of abalone each year, and has operated for over 18 years.
Yumbah is proposing to establish a new land-based abalone aquaculture farm in Dutton Way,
approximately six kilometres east of Portland in an area called Bolwarra, on Victoria’s south-
west coast.
The location of the proposed site is presented in Figure 1. The farm will be developed on 64
hectares of land currently used for rural residential purposes and zoned Rural Living Zone (RLZ)
under the Glenelg Shire Council (GSC) planning scheme.
The proposed new facility, formerly named Yumbah Nyamat (hereafter referred to as ‘Nyamat’),
will be established with similar infrastructure successfully in operation at Narrawong. Seawater
will be pumped ashore, direct from Portland Bay, to support the abalone farm.
The proposed development will feature:
Abalone farm, hatchery and nursery
Workshop and storage facility
Administration and staff amenities building
Staff car parking
Ancillary solar system
Water reticulation, stormwater and other services
Seawater in-flow and outflow pipelines
Nyamat will be the largest abalone farm of its kind in the southern hemisphere, capable of
producing 1,000 tonnes of abalone each year.
GHD Pty Ltd (GHD) was engaged by Yumbah to conduct an odour and acoustic impact
assessment associated with the proposed Nyamat facility.
This report considers the type and scale of the proposed aquaculture farm within the general
area of the proposed site and surrounding community, assessing the associated EPA odour
buffer requirements and regional Victoria noise requirements with regard to the relevant
guidelines, legislation and policy.
1.2 Purpose of this report
This report is for the purpose of informing a works approval application for the proposed facility
and provides an assessment of the potential odour and associated buffer constraints for odour
and potential noise impacts associated with the construction and operation of the proposed
facility.
180 Lonsdale Street Melbourne VIC 3000 Australia T 61 3 8687 8000 F 61 3 8687 8111 E [email protected] W www.ghd.com
Nepean Rd
Dutton Way
Crowes Rd
Gorae Rd
Moore DrBarry St
Ocean St
Nicol St
Henty H
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Pumpa St
Bayview St
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Murphy St
Leitc
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s St
Bemeli Ct
Keirana Av
Ross
lyn St
Tully
Lane
Beechwood View
FergusonsRd
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n View
Av
Wilkens Lane
Matheson St
Keillers Beach Rd
Princes Hwy
Great South West Walk
552,500
552,500
553,000
553,000
553,500
553,500
554,000 554,500 555,000 555,500
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556,000
556,000
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500
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G:\31\35653\GIS\Maps\Working\Planning\3135653_001_Location_RevB.mxd© 2018. Whilst every care has been taken to prepare this map, GHD (and DATA CUSTODIAN) make no representations or warranties about its accuracy, reliability, completeness or suitability for any particular purpose and cannot a(whether in contract, tort or otherwise) for any expenses, losses, damages and/or costs (including indirect or consequential damage) which are or may be incurred by any party as a result of the map being inaccurate, incomplete or unsuitable in any way and for any reason.
LEGEND0 100 200 300 40050
Metres
Horizontal Datum: GDA 1994Grid: GCS GDA 1994
Yumbah AquacultureYumbah Aquaculture Facility
Figure 1
Job NumberRevision B
31-35653
03 Sep 2018
Site Location Mapo Date
Data Source: Image © 2018 Google, DigitalGlobe dated 2017/01/22 and VicMap, DELWP (2017). Created by:lrsmith
Paper Size A3
CASTERTON
HEYWOOD
WARRNAMBOOLPORT FAIRYPORTLAND
PENSHURST
HAMILTON
Site Boundary
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 3
1.3 Scope and limitations
This report has been prepared by GHD for Yumbah Aquaculture Ltd and may only be used and
relied on by Yumbah Aquaculture Ltd for the purpose agreed between GHD and the Yumbah
Aquaculture Ltd as set out in section 1.2 of this report.
GHD otherwise disclaims responsibility to any person other than Yumbah Aquaculture Ltd
arising in connection with this report. GHD also excludes implied warranties and conditions, to
the extent legally permissible.
The services undertaken by GHD in connection with preparing this report were limited to those
specifically detailed in the report and are subject to the scope limitations set out in the report.
The opinions, conclusions and any recommendations in this report are based on conditions
encountered and information reviewed at the date of preparation of the report. GHD has no
responsibility or obligation to update this report to account for events or changes occurring
subsequent to the date that the report was prepared.
The opinions, conclusions and any recommendations in this report are based on assumptions
made by GHD described in this report (refer section 1.4 of this report). GHD disclaims liability
arising from any of the assumptions being incorrect.
GHD has prepared this report on the basis of information provided by Yumbah Aquaculture Ltd
and others who provided information to GHD (including Government authorities)], which GHD
has not independently verified or checked beyond the agreed scope of work. GHD does not
accept liability in connection with such unverified information, including errors and omissions in
the report which were caused by errors or omissions in that information.
The opinions, conclusions and any recommendations in this report are based on information
obtained from, and testing undertaken at or in connection with, specific sample points. Site
conditions at other parts of the site may be different from the site conditions found at the specific
sample points.
Investigations undertaken in respect of this report are constrained by the particular site
conditions, such as the location of buildings, services, plant and equipment, and vegetation and
topography. As a result, not all relevant site features and conditions may have been identified in
this report.
Site conditions (including the presence of hazardous substances and/or site contamination) may
change after the date of this Report. GHD does not accept responsibility arising from, or in
connection with, any change to the site conditions. GHD is also not responsible for updating this
report if the site conditions change.
1.4 Assumptions
This report is subject to the following general assumptions being accurate at the time of writing
this report:
Site plans/layouts including detailed drawings, elevations and plan views showing site
boundaries and nearby building footprints.
Aerial photographs of the proposed site are accurate and as up-to-date as possible.
Information gathered during the site visit and subsequent phone calls, emails, and online
research was accurate.
Meteorological data from the Bureau of Meteorology Automatic Weather Station (BOM
AWS) located at Portland NTC (Station ID: 90192) and Portland Airport AWS (Station ID
90171) is representative of the wind climate at the proposed facility.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 4
1.5 Scope of works
1.5.1 Odour Assessment
The task sequence for the odour impact assessment was as follows:
Undertake a site visit to investigate potential existing odour sources on-site at the sister site
in Narrawong and understand general odour character and future operational methodology
for discussion in report.
Review any odour complaint history for the Narrawong site.
Assess the local meteorology for the site using the local meteorological stations located at
Portland NTC and Portland Airport AWS.
Review the odour buffer guideline entitled ‘Recommended separation distances for
industrial residual air emissions’ EPA publication 1518 (EPA Victoria, March 2013).
Review of Clause 52.10 of the Victoria Planning Scheme (VPS) (Department of Planning
and Community Development (DPCD), 2010).
Provide discussion on expected odour emissions onsite and place the proposed facility
operation in perspective relative to guidelines.
1.5.2 Construction and operational noise impact assessment
The task sequence for the noise impact assessment was as follows:
Liaise with the Principal Design Consultant and the Project Team and obtain information as
necessary to conduct a preliminary acoustic assessment.
Review the preliminary design and relevant project information (including design drawings
and mechanical equipment selection).
Undertake an initial desktop review to identify key environmental noise catchment areas
and surrounding sensitive receivers from aerial photography.
Undertake a site visit and carry out short term attended noise measurements at nearby
sensitive receiver locations as part of the odour and noise site visit.
Undertake unattended noise measurements for a period of one week at two (2) locations.
Undertake further onsite noise measurements at Yumbah’s existing Narrawong abalone
aquaculture facility to provide input to the existing and proposed future noise model.
Establish Project specific environmental noise criteria for construction of the proposed
abalone aquaculture facility with consideration to the following guidelines:
– EPA Publication 1254, Noise Control Guidelines, 2008
– EPA Publication 480, Environmental Guidelines for major construction sites, Best
Practice Environmental Management, 1996
Establish Project specific environmental noise criteria for operation of the proposed abalone
aquaculture facility with consideration to the following guideline and standard:
– Noise from Industry in Regional Victoria (NIRV): Recommended maximum noise levels
from commerce, industry and trade premises in regional Victoria (EPA publication 1411)
– Australian Standard AS 1055:2018 Acoustics – Description and Measurement of
Environmental Noise
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 5
Identify and characterise the likely principal noise sources within the proposed facility
through client input and site measurements. If some items of equipment were unable to be
measured during the site visit then typical equipment noise levels were sourced from past
projects and/or GHD’s internal database.
Undertake noise modelling using Computer Aided Noise Abatement (Cadna-A) software to
predict industrial (operational) noise generated from the Project at the nearest identified
noise receivers. Noise prediction modelling was undertaken for normal operations and an
emergency operations scenario.
Undertake noise modelling to predict construction noise for several construction works
scenarios.
Provision of in-principle noise mitigation recommendations to minimise potential noise
impact at assessed sensitive receivers.
This report does not include the following:
Construction noise and vibration monitoring
Operational vibration monitoring and assessment
Structure-borne noise
Detailed noise mitigation design beyond in-principle recommendations
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 6
2. Land zoning
The land on which the proposed abalone aquaculture facility is to be located is zoned Rural
Living (RLZ). To the north and west the Rural Living Zone gives way to Rural Conservation
Zones (RCZ2). Princes Highway separates the northern RCZ2 and the RLZ with a RDZ1 (Road
Zone). To the north-east, a strip of Special Use Zone (SUZ3) exists running up the coast and is
highlighted in the Glenelg Planning Scheme as residential living in an area subject to marine
erosion and inundation. To the south, a small strip of Public Park and Recreation Zone (PPRZ)
exists running down the coast. An extract from the Glenelg Planning Scheme is presented in
Figure 2.
180 L onsda le Street Melbourne V IC 3000 Austra lia T 61 3 8687 8000 F 61 3 8687 8111 E m elm a [email protected] W www.ghd.com
Nepea n Rd
Dutton Wa y
Crowes Rd
Gora e Rd
Moore Dr
Ba rry St
Ocea n St
NicolSt
Henty Hwy
Pum pa St
Ba yview St
Maretim o Service Rd
Murphy St L eitchSt
Ca m eronSt
DallasSt
Bem eli Ct
Keira na Av
Rosslyn St
TullyLane
Beechwood V iew
FergusonsRd
OceanViewAv
WilkensLa ne
Ma thesonSt
Keillers Bea ch Rd
PrincesHwy
Grea tSouth WestWa lk
PCRZ
RLZRLZ
RCZ2
RCZ2
PCRZ RCZ2
RDZ1
PPRZ
PPRZ
RLZ
SUZ3
GLENELG SHIRE
552,500
552,500
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553,000
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553,500
554,000 554,500 555,000 555,500
555,500
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556,000
5,760,
000
5,760,
000
5,760,
500
5,760,
500
5,761,
000
5,761,
000
5,761,
500
5,761,
500
5,762,
000
5,762,
000
G:\31\35653\GIS\Ma ps\Working\Pla nning\3135653_ 002_ Z ones_ RevB.m xd© 2018. Whilst every ca re ha s been ta ken to prepa re this m a p, GHD (a nd DATA CU STODIAN) m a ke no representa tions or wa rra nties a bout its a ccura cy, relia bility, com pleteness or suita bility for a ny pa rticula r purpose a nd ca nnot a(whether in contra ct, tort or otherwise) for a ny expenses, losses, da m a ges a nd/or costs (including indirect or consequentia l da m a ge) which a re or m a y be incurred by a ny pa rty a s a result of the m a p being ina ccura te, incom plete or unsuita ble in a ny wa y a nd for a ny rea son.
L EGEND0 100 200 300 40050
Metres
Horizonta l Da tum : GDA 1994Grid: GCS GDA 1994
Yum ba h Aqua cultureYum ba h Aqua culture Fa cility
Figure 2
Job Num berRevision B
31-35653
03 Sep 2018
Pla nning Z oneso Da te
Da ta Source: Im a ge © 2018 Google, Digita lGlobe da ted 2017/01/22 a nd V icMa p, DEL WP (2017). Crea ted by:lrsm ith
Pa per Size A3Site Bounda ry
ZonesPublic Conserva tion & ResourcePublic Pa rk a nd Recrea tion
Rura l Conserva tion 2Roa d – Ca tegory 1Rura l L ivingSpecia l U se 3 - Dutton Wa y
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 8
3. Proposed facility
As generally shown in Figure 3, the proposed facility will consist of a number of buildings,
ponds, pumping stations, grow out facilities and associated infrastructure as follows:
An abalone hatchery
An abalone nursery
Feed storage silos 4x
Grow out area, divided into 4x sections totalling 181,655 m2
A live harvest shed
An abalone mortalities and storage facility
Ancillary solar system
Sediment pumps 4x
Emergency pumps 4x
Storm retention dam
Pump house divided into 4x sections, each section with 5 pumps and a backup generator
PIG retrieval station
Workshop
Administration block with toilets, car parking, and other amenities
Figure 3 Proposed facility layout
Source: Yumbah (26 August 2018)
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 9
4. Meteorology
Local weather data was assessed to develop wind roses for the proposed aquaculture facility.
Local wind roses for the site where generated from the Portland NTC automatic weather station
(AWS) and the Portland Airport AWS. Meteorological data from these two nearby sites help to
provide an understanding of the local air dispersion characteristics and predominant wind flows.
Odour
During periods of more stable air flow, poor dispersion of industrial residual air emissions
(IRAEs) can occur. At these times the ‘maximum extent of impact’ from odour emissions will be
greatest. Similarly, during periods of less stable air flow, such as during a hot sunny day when
thermal convection currents are in operation, good dispersion of IRAEs is likely to occur
reducing the ‘maximum extent of impact’.
Noise
Further, some meteorological conditions may have an effect on noise propagation and
absorption, for example:
Temperature (frequency dependent)
Temperature inversion – can cause noise to refract ground-ward
Relative humidity – the higher the humidity the lower the noise absorption
Wind – noise is refracted differently downwind and upwind of the source, with the speed of
noise propagation increasing with decreased air pressure (lower density air). Sound
refracts across a wind pressure gradient bending ground-ward downwind and skyward
upwind of the source.
4.1 Choice of meteorological dataset
Ideally, a 12 month dataset recorded at hourly intervals is required to fully characterise annual
average, diurnal and seasonal variations in wind climate. The nearest complete meteorological
dataset is from the BOM AWS (Bureau of Meteorology Automatic Weather Station) located at
Portland NTC (BOM site ID:90192), approximately 5 km to the south of the site, and the
Portland Airport (BOM site ID: 90171), approximately 12 km to the west of the site.
The intervening terrain is primarily flat with no significant elevation changes between the
proposed site and both BOM stations.
Both weather station locations are in coastal locations very similar to the Nyamat site and as
such are considered representative of the coastal weather conditions that are experienced
along Dutton Way.
GHD obtained a 12 month dataset from BOM for the most recent year (2017) from both stations
to analyse the local meteorological characteristics. The recorded wind climate is described by
the wind roses presented in Figure 4 and Figure 5 below and the frequency of winds within each
designated wind class are provided in Figure 6.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 10
Summer Autumn
Winter Spring
Figure 4 Annual and seasonal wind roses at Portland NTC Site: 90192
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 11
Summer Autumn
Winter Spring
Figure 5 Annual and seasonal wind roses at Portland Airport Site: 90171
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 12
Site 90171 Airport Site 90192 Portland
Figure 6 Frequency of winds
From the wind roses it can be seen the Portland NTC Site: 90192 demonstrates predominantly
west and southwest winds, but also has significant winds from the northwest and south eastern
sectors and little wind originating from the north eastern sector. Seasonally, the summer period
shows a large coastal influence with offshore winds from the southwest and southeast
dominating the wind rose. This fluctuates in autumn as winds transition to predominately north-
westerly winds, becoming mostly westerly by winter.
Light winds below 0.5 m/s, designated as calm periods, make up only 0.2% of the winds
indicating any odours will be readily dispersed due to the lack of calm periods.
The Portland Airport has a similar wind pattern to the NTC site, however the summer period
demonstrates a stronger westerly influence. The airport also lacks any significant frequency of
calm events at only 0.3% of all winds below 0.5 m/s and approximately half the frequency of
light winds (0.5-2 m/s) compared to the NTC site, see Figure 6.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 13
5. Odour assessment
An assessment of potential odour sources associated with the operation of the proposed
aquaculture farm which may impact nearby sensitive receivers was undertaken with
consideration to the local meteorology, production/mortality cycles, sensitive receiver locations
and associated EPA odour buffer requirements.
The following sections provide information sourced from a recent site visit undertaken by GHD
to Yumbah’s existing Narrawong abalone farm (sister site), an assessment of Victoria’s buffer
requirements and guidelines and how they apply to the site and the abalone farm’s operation
relative to any existing odour and the potential for odour from the proposed Yumbah facility.
The site visit to the existing sister abalone farm at Narrowong was undertaken in order to review
that’s sites odour and odour management and make a comparison to the existing site and the
proposed site at Nyamat. From this site visit offsite odours can be inferred through the site
operations and odour experienced onsite.
For the purpose of this report the terms threshold distance, separation distance and buffer
distance are considered the same and are used interchangeably throughout this report.
5.1 Victorian planning and odour guidelines
The following section outlines the legislation and guidelines relevant to odour emissions from
industry.
5.1.1 Victorian planning
The Victoria Planning Provisions (VPP) ‘is a document containing a comprehensive set of
planning provisions for Victoria. It is not a planning scheme and does not apply to any land. It is
a state-wide reference, used as required, to construct planning schemes’ (Department of
Planning and Community Development (DPCD), 2010).
The Victoria Planning Scheme (VPS) consists of maps which show how land is zoned for
planning purposes. These zones reflect the primary character of land, such as residential,
industrial or rural and indicate the type of use which may be appropriate in that zone
(Department of Planning and Community Development (DPCD), 2010).
Clause 52.10 of the VPS outlines the minimum distances a proposed industrial development
must be from land classified as a Residential Zone, Business 5 Zone, Capital City Zone or
Docklands Zone. This distance is termed the threshold distance and is required to be met,
otherwise a planning permit must be sought.
In the case of an aquaculture activity, such as an abalone farm, there is no specific ‘Threshold
Distance’, with the closest activity being either a “Seafood processor” or “Rural industry
handling, processing or packing agricultural produce”; Clause 52.10 of the VPS stipulates a
‘Threshold Distance’ of 500 and 300 metres respectively for each activity. GHD considers the
proposed aquaculture facility to be atypical within the seafood industry as it does not involve the
more odorous activities that may be found at other seafood processing sites and is not strictly a
handling processing or packing facility. As such, GHD is of the opinion that clause 52.10 while
applicable to the situation would not apply in this instance as no defined threshold is stipulated.
Further there is no Residential Zone, Business 5 Zone, Capital City Zone or Docklands Zone
within 1.3 km of the closest boundary of the proposed site.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 14
5.1.2 EPA publication 1518
EPA Publication 1518 - Recommended Separation Distances For Industrial Residual Air
Emissions (March 2013) outlines relevant buffer distances for use in minimising the occurrence
of amenity reducing emissions from industry affecting properties (sensitive land uses) beyond
the boundary of the source premises (EPA Victoria, March 2013).
Sensitive land uses include:
‘any land uses which require a particular focus on protecting the beneficial uses of the air
environment relating to human health and wellbeing, local amenity and aesthetic enjoyment,
for example residential premises, child care centres, pre-schools, primary schools, education
centres or informal outdoor recreation sites’ (EPA Victoria, March 2013).
In the case of seafood processing, EPA Publication 1518 stipulates a ‘Separation Distance’ of
500 metres. Again, GHD consider the proposed aquaculture facility to be atypical within the
seafood industry as it does not involve the more odorous activities that may be found at other
seafood processing sites and as such GHD does not consider this buffer would apply.
5.1.3 Project specific criteria
As discussed above, there are two different amenity threshold/separation distance guidelines
relevant in the context of planning in Victoria, namely:
The Legislated Victoria Planning Scheme (VPS)
EPA recommend buffer distance guidelines (Publication 1518)
The purpose of an amenity buffer is to provide a planning instrument to create a sufficient
separation between sensitive land uses, such as residential land, and industrial premises so
that disamenity is avoided in the event of an upset/malfunction.
The VPS table to clause 52.10 is relevant only where there is a new industrial or warehouse use
proposed on a land parcel. The proposed facility must meet the minimum threshold distance
specified for its specific type of production, use or storage. In the case of the proposed abalone
farm there is no specified threshold distance.
Publication 1518 is relevant where existing industrial emission sources are present in the area
surrounding a proposed development wishing to move within close proximity and as such is not
relevant in this instance. However, Table 1 of EPA publication 1518 states the following in
regard to odour:
“*Note: For food and beverage manufacturing producing less than 200 tonnes of product per
year, no separation distances are specified. For these cases, EPA recommends there is no
visible discharge of dust or emissions of odours offensive to the senses of human beings,
beyond the boundary of the premises”.
5.2 Sensitive receiver locations
The majority of sensitive receivers are situated along the coast to the south and south east of
the proposed facility along Dutton Way. Additional sensitive receivers are located to the north
gaining access to their properties via the Princes Highway. The site and sensitive receiver
locations are presented in Figure 10. As shown in Figure 1 and Table 1 sensitive receivers are
located in close proximity to the proposed site boundary.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 15
5.3 Potential odour sources
5.3.1 Existing odour sources proximate to plant
Existing odour sources in the vicinity of the proposed facility are typical of coastal environments.
Seasonal odours due to changes in algal biomass and biomass die-off are common naturally
occurring event found throughout coastal water bodies, and is expected. This type of odour can
occur where an algal biomass accumulates, dies off and as it decomposes through microbial
action, reduces oxygen at the substrate, causing a build-up of hydrogen sulphide gas (H2S)
which is known for its ‘rotten egg’ like odour.
5.3.2 Potential site odours
It is GHD’s understanding that the proposed Nyamat aquaculture facility will be established with
similar infrastructure to that which is successfully in operation at Yumbah’s Narrawong
aquaculture facility. A site visit was undertaken by GHD on 28 November 2017 to the existing
Narrawong facility to identify possible odour sources that may be present at the proposed
facility.
During the site visit no significant odour was noted on site, however the following minor odour
sources were noted:
Mortalities bins
Waterfowl (bird) droppings at lagoon perimeters
Both odour sources are discussed further below, including how management will be improved at
Nyamat to reduce odours. No discernible odour was noted at the nursery, grow out sheds or
open channels and therefore it is expected that these areas will not be a major odour source at
the Nyamat facility.
5.3.3 Mortalities bin odour
Yumbah Narrawong temporarily store perished abalone onsite in a waste bin or skip as shown
in Figure 7 and Figure 8. The abalone waste is covered with lime and sand every day to reduce
odour from the bin. The bin is emptied for offsite disposal at different time intervals throughout
the year, according to seasonal changes in mortality. Bin changes occur weekly in summer,
monthly in winter and fortnightly during mild conditions. During the site visit, only a very minor
odour was noted at the mortalities bin, which dissipated within 2-3 metres from the bin area.
Generally, mortality is at its highest in an abalone farm during the summer months, which are
also the months of best dispersion as discussed in section 4, thereby reducing impact from this
type of onsite odour source. Conversely, poorest dispersion occurs during the cooler winter
months, however, this is when abalone morality is typically at its lowest.
Mitigation
Odour from mortality management will be greatly improved at the new Nyamat facility with all
mortalities being collected on a daily basis and placed in freezers inside the Abalone Mortalities
and Storage facility. Once freezers are nearly full, abalone mortalities will be transported offsite
for disposal at either the local municipal landfill or a suitable rendering facility.
Management of mortalities in this manner is expected to reduce odour to the point where it is
expected to be an insignificant onsite odour source and not noticeable beyond the property
boundary.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 16
Figure 7 Mortality bin at Narrawong facility
Figure 8 Mortality bin at Narrawong facility, showing the lime and sand
cover used
5.3.4 Water bird odour
As shown in Figure 9, the wastewater pond at the Narrawong facility had sea gulls present at
the time of the site inspection and, according to the site manager, birds often make use of the
constructed wetland.
No significant odour was noted at the lagoons with minor and inoffensive odour from waterfowl,
which tended to defecate around the pond area.
Due to the close geographical location of the proposed aquaculture facility to the Narrawong
facility and the nearby Indian Ocean, it is expected that a similar or slightly greater quantity of
sea gulls would visit the proposed Nyamat site, resulting in a comparable odour emission.
Mitigation
Bird management will be greatly improved at the new Nyamat facility with all ponds and
retention basins being covered in a bird mesh, preventing birds from settling onsite at these
locations.
Management of birds in this manner is expected to reduce any odour from faecal defecation
significantly to the point where it is expected to be no more than a minor onsite odour and not
noticeable beyond the property boundary to any degree other than what seabirds are already
contributing to the beach front location.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 17
Figure 9 Waterbirds on wastewater treatment pond at Narrawong
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 18
6. Operational noise assessment
An impact assessment of operational noise sources at the proposed Nyamat facility has been
undertaken. The assessment was undertaken relative to local meteorology, sensitive receiver
locations and relevant EPA noise requirements.
6.1 Existing noise environment
6.1.1 Sensitive receivers
Aerial photography and a site visit were used to identify the nearest sensitive receivers
surrounding the proposed facility. Potential sensitive receptors have been identified in the Rural
Living Zone (RLZ), Public Park and Recreation Zone (PPRZ) and Special Use Zone (SUZ). The
location of each zone is presented in Figure 2.
Distances from these sensitive receptors to the proposed facility were calculated based on the
site boundary to 10 metres from the most noise affected façade. The location of the identified
sensitive receptors are shown in Figure 10 and are listed in Table 1.
Table 1 Sensitive receivers
Sensitive Receivers
ID
X Coordinate
EASTING (m)
Y Coordinate
NORTHING (m)
Approximate Distance from the Abalone Site
Boundary
(m)
Direction from the Project site
R1 553446 5760319 48 W
R2 553683 5760403 12 S
R3 553738 5760421 32 S
R4 553759 5760434 34 S
R5 553777 5760440 40 S
R6 553784 5760468 22 S
R7 553812 5760483 28 S
R8 553855 5760510 32 S
R9 553867 5760528 25 S
R10 553892 5760541 30 S
R11 553909 5760562 23 S
R12 553954 5760595 25 S
R13 553968 5760610 22 S
R14 553978 5760623 17 S
R15 554005 5760626 31 S
R16 554011 5760647 19 S
R17 554152 5760764 9 S
R18 554185 5760753 37 S
R19 554219 5760776 37 S
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 19
Sensitive Receivers
ID
X Coordinate
EASTING (m)
Y Coordinate
NORTHING (m)
Approximate Distance from the Abalone Site
Boundary
(m)
Direction from the Project site
R20 554265 5760796 65 SE
R21 554297 5760807 94 SE
R22 554319 5760818 111 SE
R23 554367 5760841 155 SE
R24 554399 5760858 182 SE
R25 554420 5760869 200 SE
R26 554444 5760888 223 SE
R27 554455 5760915 232 SE
R28 554499 5760915 274 SE
R29 554503 5760948 275 SE
R30 554501 5760965 270 SE
R31 554530 5760982 297 SE
R32 554210 5761373 40 NE
R33 554038 5761334 33 N
R34 553606 5761160 0 N
R35 553559 5761021 27 NW
R36 553350 5760801 206 NW
R37 553311 5760880 253 NW
R38 553217 5760791 336 NW
R39 553139 5760764 411 NW
R40 553061 5760679 475 NW
R41 553067 5760554 453 NW
R42 553067 5760484 445 NW
Figure 10Sensitive Receiver Locations
R1 R2
R16
R17
R31
R32R33
R34
R35
R42
R36
R37
R38R39
R40
R41
553000
553000
553200
553200
553400
553400
553600
553600
553800
553800
554000
554000
554200
554200
554400
554400
5760
000
5760
000
5760
200
5760
200
5760
400
5760
400
5760
600
5760
600
5760
800
5760
800
5761
000
5761
000
5761
200
5761
200
5761
400
5761
400
5761
600
5761
600
Sound PressureLevel dB(A) 35.0 <= ... < 40.0 dB(A) 40.0 <= ... < 45.0 dB(A) 45.0 <= ... < 50.0 dB(A) 50.0 <= ... < 55.0 dB(A) 55.0 <= ... < 60.0 dB(A) 60.0 <= ... < 65.0 dB(A) 65.0 <= ... < 70.0 dB(A) 70.0 <= ... < 75.0 dB(A)
Yumbah Abalone Farm
Noise Impact AssessmentSensitive Receivers1.5 Metres Height
ISO 9613 Algorithm
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 21
6.2 Background noise monitoring
Background noise monitoring was undertaken at two locations to accurately characterise
existing noise levels. Background noise levels were analysed for each of the prescribed time
periods specified by the Victorian EPA (2008) shown in Table 2.
Table 2 Prescribed assessment periods
Period Time
Day 7.00 am – 6.00 pm (Mon – Fri)
7.00 am – 1.00 pm (Sat)
Evening
6.00 pm – 10.00 pm (Mon – Fri)
1.00 pm – 10.00 pm (Sat)
7.00 am – 10.00 pm (Sun)
Night 10.00 pm – 7.00 am
6.2.1 Instrumentation
Background noise measurements were taken from 27 November 2017 through to 28 December
2017. Details of the monitoring instrumentation and start/stop times is presented in Table 3.
Table 3 Background noise measurement instrumentation
Model SVAN 955 SVAN 955
Serial no. 27613 27615
Type 1 1
Start date 27 November 2017 27 November 2017
Finish date 28 December 2017 28 November 2017
Pre-measurement calibration check (94.0 db @ 1000 Hz)
94.0 114*
Post-measurement calibration check (94.0 db @ 1000 Hz)
94.3 -**
Integration time interval 15 minutes 15 minutes
Frequency weighting A A
Time response Fast Fast
Engineering units dB(A) SPL re:20 µPa
dB(A) SPL re:20 µPa
*high background induced noise interfered with field calibration so used 114 dB level rather than 94 dB @ 1kHz
**Logger failed prematurely due to battery discharge, no post measurement calibration available.
6.2.2 Unattended measurements
Unattended logger measurements were undertaken at two locations, namely the Frank Lodge
Scenic Lookout and Dutton Way. Local meteorological data was also acquired during the
monitoring period. The instrument set up and unattended noise monitoring results for both
locations are presented below.
Location 1 - Frank Lodge Scenic Lookout
The instrument setup at the Frank Lodge monitoring location is shown in Figure 11. The
monitoring results are presented in Table 4.
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Figure 11 Instrumentation set up for unattended measurements at location 1
Table 4 Summary of unatttended noise monitoring results at Location 1
Monitoring period
Background LA90, 1hour dB(A) Ambient LAeq dB(A)
Day
time Evening
Night
time
Day
time Evening
Night
time
27/11/2017 - - 38* - - 44*
28/11/2017 40 40* - 46 43* -
Overall 40 40 38 46 43 44
1. Where an asterix (*) is presented, this signifies the value does not contain a full set of measurements for this period.
2. Where a dash (-) is presented, this signifies no valid data was collected for this period.
Location 2 - Dutton Way
The instrument setup at the Dutton Way monitoring location is shown in Figure 12. The
monitoring results are presented in Table 5.
Figure 12 Instrumentation set-up for unattended measurements at location 2
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 23
Table 5 Summary of unatttended noise monitoring results at Location 2
Monitoring period
Background LA90, 1hour dB(A) Ambient LAeq dB(A)
Day
time Evening
Night
time
Day
time Evening
Night
time
27/11/2017 - - 42* - - 49*
28/11/2017 42 44 41 55 53 48
29/11/2017 35* 40* 38* 54* 58* 48*
30/11/2017 38 36 31* 60 53 49*
1/12/2017 45 46 47* 57 54 62*
2/12/2017 50 51 49* 65 66 63*
3/12/2017 41 31 36* 75 70 69*
4/12/2017 - - - - - -
5/12/2017 - 44 43 - 54 49
6/12/2017 38 37 33 56 54 47
7/12/2017 40 39 34* 56 54 49*
8/12/2017 39 38 31 57 54 47
9/12/2017 39 34 27* 56 52 46*
10/12/2017 35 35 31 55 52 46
11/12/2017 35 40 38* 56 54 48*
12/12/2017 37 41 37 56 54 47
13/12/2017 40 34 28 56 53 46
14/12/2017 39 33 29 55 53 45
15/12/2017 34* - - 55* - -
Overall 39 39 36 64 61 59
1. Where an asterix (*) is presented, this signifies the value does not contain a full set of measurements for this period.
2. Where a dash (-) is presented, this signifies no valid data was collected for this period.
Animal damage
An animal chewed the cable at the Dutton Way measurement site causing the cable to have to
be replaced - see Figure 13. The cable was found and replaced on 5/12/2017. The affected time
periods are dashed in Table 5 and have been removed from further calculation.
Figure 13 Damaged cable at Dutton Way logger site
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6.2.3 Attended measurements at proposed site
Attended measurements were taken at each logger location for day, evening and night time
periods. Attended measurements were taken over a 15 minute period to coincide with the long
term unattended noise logging. At the time of the evening measurement at the Frank Lodge
Scenic Lookout location, wind speeds were greater than the 5 m/s threshold at 6.9 m/s, and as
such the results for this time period while presented in this report for completeness are
considered invalid.
The sound level meter was calibrated before and after the measurements were performed and
was found to be within the required margin of 1 dB(A) pre and post calibration.
Instrumentation used and field calibrations are presented in Table 6 and summary results of the
attended measurements are presented in Table 7.
Measurements show that the Frank Lodge Scenic Lookout location had lower background noise
levels LA90 dB(A) when compared to the measurements taken adjacent to Dutton Way by 3 to 4
dB(A). This is expected due to its more isolated location, distance back from the ocean and
relatively few sensitive receiver locations surrounding the site.
Generally, noise in the area was found to consist of ocean noise and animal sounds, with
occasional traffic along Dutton Way and an aeroplane flyover during the day period.
Table 6 Attended noise measurement equipment details
Measurement
date
Equipment
type
Equipment
model
Serial
number
Class
(Type)
Octave
band
frequency
mode
Weighting
and time
response
27 November
2017
Sound Level
Meter
Bruel &
Kjaer 2270 3009634
Type 1
1/3 Octave A/Fast
Microphone Bruel &
Kjaer 4189 3086784
Acoustic
Calibrator
Bruel &
Kjaer 4231 2560035 - -
28 November
2017
Sound Level
Meter
Bruel &
Kjaer 2270 3009634
Type 1
1/3 Octave A/Fast
Microphone Bruel &
Kjaer 4189 3086784
Acoustic
Calibrator
Bruel &
Kjaer 4231 2560035 - -
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 25
Table 7 Summary of attended background noise measurement results
Measurement
location
Period Starting
measurement
date & start time
in (hh:mm)
Measurement
duration
(mm:ss)
Background
noise levels
LA90 dB(A)
Ambient
noise
levels
LAeq
dB(A)
Maximum
noise
levels
LAmax
dB(A)
Minimum
noise
levels
LAmin
dB(A)
Comments
At logger location 1
(Frank Lodge
Scenic Lookout)
Daytime 28 November
2017 (9:00 am) 15:00 39 44 60 37
Occasional car or truck passing
Occasional noise from cattle and birds
Occasional distant dog barking in last eight minutes
Commercial aeroplane passing in 8th minute
At logger location 2
(Dutton Way) Daytime
28 November
2017 (9:45 am) 15:00 43 51 69 39
Ocean noise in background
Bugs and birds frequently in background
Occasional car passing
At logger location 1
(Frank Lodge
Scenic Lookout)
Evening 27 November
2017 (8:00 pm) 15:00 45* 53* 66* 41* * - Invalid measurement (Wind speed too high)
At logger location 2
(Dutton Way) Evening
27 November
2017 (9:30 pm) 15:00 46 49 65 45
Background noise from frogs or crickets
Trees/grass rustle by wind (prominent background)
Wallaby hopping by and jumping fence in last minute
Car passing
At logger location 1
(Frank Lodge
Scenic Lookout) Night-time
28 November
2017 (1:15 am) 15:00 42 44 52 40
Occasional noise from cattle and birds
Ocean noise in background
Frogs or crickets in background
Lull in noises with just ocean and one cricket/frog
42.7-46.0 dB(A)
At logger location 2
(Dutton Way) Night time
28 November
2017 (12:30
am)
15:00 45 46 51 43
Trees/grass rustle by wind (prominent background)
Ocean noise in background
Crickets in background
Lull in noises with just ocean and faint crickets 45.0-46.0 dB(A)
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 26
6.3 Applicable noise criteria
The following section outlines the noise criteria relevant to the proposed Nyamat facility.
6.3.1 Victorian noise policy and guidelines
There are two key industrial noise control documents currently used in Victoria, namely:
State Environment Protection Policy – Control of Noise from Commerce, Industry and
Trade No. N-1 (SEPP N-1) (Victorian Government, 1989)
Noise from Industry in Regional Victoria (NIRV): Recommended maximum noise levels
from commerce, industry and trade premises in regional Victoria (EPA publication 1411)
(EPA Victoria, 2011)
The SEPP N-1 is applicable for sensitive receivers located in a Major Urban Area (MUA), with
potential impact from industrial noise. A ‘Major Urban Area’ is defined as:
The part of Melbourne that is within the SEPP N-1 boundary, refer to Figure 14; or
The part of Melbourne that extends beyond the SEPP N-1 boundary, but is within the
Melbourne Urban Growth Boundary (UGB), refer to Figure 14; or
Land within the ‘Major Urban Area’ boundary of an Urban Centre with a population
greater than 7000, refer to Figure 15
Land zoned either Residential Zone, Industrial Zone, Business Zone or Urban Growth
Zone that is transected by the ‘Major Urban Area’ boundary of an Urban Centre with a
population greater than 7000, then the whole of that zone shall be considered as part of
the MUA.
The NIRV guideline is applicable for sensitive receivers located in a rural area outside of those
areas outlined above that may potentially be impacted from industrial noise. A rural area is
defined as:
‘A rural area is land that is not within a major urban area. It includes land in cities or towns with
population below 7000, and rural locations outside major urban areas’ (EPA Victoria, 2011).
Figure 14 Areas covered by SEPP N-1 and Planning UGB (EPA Victoria, 2011)
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 27
Source: EPA Victoria, 2011
Figure 15 Portland major urban area boundary (EPA Victoria, 2011)
6.3.2 Applicable method of assessment criteria
The project site and nearby sensitive receivers to the west, north and east are located beyond
the SEPP N-1 area and the Melbourne Urban Growth boundary (EPA Victoria, 2011). These
receivers have therefore been assessed against the NIRV guideline.
The Duttonway SUZ3 is designated as such to address the significant adverse environmental,
economic and social effects of allowing housing development in an area under threat of marine
erosion. In this instance the SUZ3 does not default to INZ3 as per the footnote at the bottom of
Table 1 in the NIRV and instead would be classified in a similar manner to the surrounding land
RLZ. As such, this area has been assessed in a similar manner to receivers in the surrounding
RLZ. Consequently, these receivers have been assessed against the NIRV guideline.
The sensitive receivers located along the coast on Dutton Way up to the Great South West
Walk fall beyond the SEPP N-1 area but within the Melbourne Urban Growth Boundary (EPA
Victoria, 2011). NIRV guideline makes the following statement under EPA Publication 1411:
“Where either the noise emitter or the noise receiver is within a major urban area, the major
urban area approach applies.” (EPA Victoria, 2011)
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 28
Based on the above statement, the noise criteria applicable to these receptors has been based
on the SEPP N-1. Table 8 provides a summary of the applicable criteria for nearby sensitive
receivers.
Table 8 Applicable criteria
Sensitive Receivers ID X Coordinate
EASTING (m)
Y Coordinate
NORTHING (m)
Relevant Criteria
R1 553446 5760319 SEPP-N1
R2 553683 5760403 SEPP-N1
R3 553738 5760421 SEPP-N1
R4 553759 5760434 SEPP-N1
R5 553777 5760440 SEPP-N1
R6 553784 5760468 SEPP-N1
R7 553812 5760483 SEPP-N1
R8 553855 5760510 SEPP-N1
R9 553867 5760528 SEPP-N1
R10 553892 5760541 SEPP-N1
R11 553909 5760562 SEPP-N1
R12 553954 5760595 SEPP-N1
R13 553968 5760610 SEPP-N1
R14 553978 5760623 SEPP-N1
R15 554005 5760626 SEPP-N1
R16 554011 5760647 SEPP-N1
R17 554152 5760764 SEPP-N1
R18 554185 5760753 SEPP-N1
R19 554219 5760776 SEPP-N1
R20 554265 5760796 NIRV
R21 554297 5760807 NIRV
R22 554319 5760818 NIRV
R23 554367 5760841 NIRV
R24 554399 5760858 NIRV
R25 554420 5760869 NIRV
R26 554444 5760888 NIRV
R27 554455 5760915 NIRV
R28 554499 5760915 NIRV
R29 554503 5760948 NIRV
R30 554501 5760965 NIRV
R31 554530 5760982 NIRV
R32 554210 5761373 NIRV
R33 554038 5761334 NIRV
R34 553606 5761160 NIRV
R35 553559 5761021 NIRV
R36 553350 5760801 NIRV
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 29
Sensitive Receivers ID X Coordinate
EASTING (m)
Y Coordinate
NORTHING (m)
Relevant Criteria
R37 553311 5760880 NIRV
R38 553217 5760791 NIRV
R39 553139 5760764 NIRV
R40 553061 5760679 NIRV
R41 553067 5760554 NIRV
R42 553067 5760484 NIRV
6.3.3 Determining the NIRV related criteria
Noise from industry in regional Victoria1 (NIRV) manages the impact of noise on residential and
other noise-sensitive uses and should be applied when siting or designing new or expanded
industry or plant and when government authorities assess applications for industry in regional
Victoria.
NIRV sets the maximum noise level allowed in a noise sensitive area from commercial/industrial
premises depending on the time of day and land use zoning. The first step is to determine the
land-use zones of the receiving zone2 and generating zone3. Once the receiving and generating
zones are known, then using Table 1 in the NIRV guideline, the Zone Noise Levels are
developed for each time period. The obtained Zone Noise Levels are then adjusted depending
on the receiver-to-source distance to obtain the maximum allowable planning noise levels.
In a situation where background noise levels may be higher than usual for a rural area due to
traffic noise or coastal noise, background noise monitoring may be undertaken and an
adjustment of the Zone Noise Levels made accordingly to determine the maximum allowable
noise levels.
Portland is a coastal area and as such under the NIRV, would be classified as a ‘background-
relevant area’ where elevated background noise levels occur due to surf noise. Long-term
unattended and short tern attended noise monitoring was undertaken as a consequence - see
section 6.2.
The following steps were then followed to develop the noise criteria for sensitive receivers under
the NIRV:
STEP 1: Identification of Zones from Table 1 of the NIRV (EPA Publication 1411, 2011)
– RLZ generating zone and RLZ for receivers
– The SUZ3 to the south east is designated as RLZ for this project as described in Step
1 of the NIRV – Refinement of the non-specific zones.
STEP 2: Distance adjustment levels. One decibel is to be subtracted for every 100
metres of ‘receiver distance’ where the noise generator and receiver are in different land
use zones, as stipulated in the NIRV.
STEP 3: Base noise level check. Check distance adjusted noise levels from step 2 against
the following base noise levels for each period:
– Day 45 dB(A)
– Evening 37 dB(A)
– Night 32 dB(A)
1 Part of Victoria that extends beyond the SEPP N-1 area and Planning Urban Growth Boundary and not classified as Major Urban Area (EPA Victoria, 2011). 2 ‘Receiving zone’ is the land-use zone in which the noise-sensitive area is located. 3 ‘Generating zone’ is the land-use zone in which the noise emitter is located.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 30
For each period, the greater of the distance- adjusted level and the base noise level is adopted.
STEP 4. Background level check and adjustment. A background level assessment may
be required where the location of the noise sensitive receivers is considered to be situated
within a ‘Background-relevant area’4. As discussed, monitoring was undertaken, and has
been considered for this adjustment.
STEP 5. High traffic noise areas. This step applies to background-relevant areas affected
by high traffic-noise levels. This is applicable in this instance as Princes Highway is located
directly to the north of the proposed facility.
Table 9 presents the derived NIRV noise criteria applicable for the identified nearest sensitive
receivers.
Table 9 Derived NIRV noise criteria for the nearest identified receivers
dB(A) LAeq
Steps Daytime
7am – 6pm (Mon – Fri)
7am – 1pm (Sat)
Evening-time
6pm – 10pm (Mon – Fri)
1pm – 10pm (Sat)
7am – 10pm (Sun)
Night-time
10pm – 7am
STEP 1 45 38 33
STEP 2 a
45
(no adjustment same contiguous zone)
38
(no adjustment same contiguous zone)
33
(no adjustment same contiguous zone)
STEP 3 45
(base is 45 dB(A))
38
(base is 37 dB(A))
33
(base is 32 dB(A))
STEP 4 b 39+8=47 39+5=44 36+5=41
STEP 5 47
(reference is 55 dB(A))
44
(reference is 50 dB(A))
41
(reference is 45 dB(A))
Derived NIRV Criteria cdB(A) LAeq
47 44 41
a The noise generator and noise receiver are in the same zone classification (RLZ).
b The Dutton Way logger data has been used for setting criteria, as the Frank Lodge logger shutdown prior to capturing
any significant amount of data.
c The Duttonway SUZ3 is designated as such to address the significant adverse environmental, economic and social
effects of allowing housing development in an area under threat of marine erosion. In this instance the SUZ3 does not
default to INZ3 as per the footnote at the bottom of Table 1 in the NIRV and instead would be classified in a similar
manner to the surrounding land RLZ and as such is treated here in a similar many to receivers in the surrounding RLZ.
6.3.4 Determining the SEPP N-1 related criteria
Noise from industry within Melbourne’s Planning UGB is managed using the SEPP N-1. The
SEPP N-1 manages the impact of noise on residential and other noise-sensitive uses and
should be applied when siting or designing new or expanded industry or plant and when
government authorities are assessing applications for new and expanding industry.
SEPP N-1 sets the maximum noise limit allowed in a noise sensitive area emanating from
commercial/industrial premises depending on the time of day, evening, or night; land use
zoning; and existing background noise levels.
4 ‘Background-relevant area’ means a noise-sensitive area where background levels may be higher than usual for a rural area. This includes areas where freeway or highway traffic is a significant audible background noise source. It also includes coastal
areas, where representative background levels are elevated by surf noise.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 31
The first step in assessing the noise limit is to calculate the prescribed upper noise limit (Zoning
Level or Zoning Limit) for the particular land use in line with Schedule B2 of the SEPP N-1.
Once the zoning level has been developed, the background level is assessed as to whether the
background levels are neutral (i.e. not significantly higher or lower than the zoning level) or
otherwise. If the background level is neutral, the noise limit adopted is the zoning level. If, on the
other hand, the background level is found to be significantly lower or higher than the zoning
level then the noise limit is reduced or increased accordingly.
The following section details the derivation of SEPP N-1 noise limits applicable for the Project
site. Schedule B2 of the SEPP N-1 outlines how zoning levels for a day period, evening period
and night period must be determined using the following equations:
𝐷𝑎𝑦 𝑝𝑒𝑟𝑖𝑜𝑑: 𝑧𝑜𝑛𝑖𝑛𝑔 𝑙𝑒𝑣𝑒𝑙 = 18 × 𝐼𝑛𝑓𝑙𝑢𝑒𝑛𝑐𝑖𝑛𝑔 𝐹𝑎𝑐𝑡𝑜𝑟 + 50
𝐸𝑣𝑒𝑛𝑖𝑛𝑔 𝑝𝑒𝑟𝑖𝑜𝑑: 𝑧𝑜𝑛𝑖𝑛𝑔 𝑙𝑒𝑣𝑒𝑙 = 17 × 𝐼𝑛𝑓𝑙𝑢𝑒𝑛𝑐𝑖𝑛𝑔 𝐹𝑎𝑐𝑡𝑜𝑟 + 44
𝑁𝑖𝑔ℎ𝑡 𝑝𝑒𝑟𝑖𝑜𝑑: 𝑧𝑜𝑛𝑖𝑛𝑔 𝑙𝑒𝑣𝑒𝑙 = 17 × 𝐼𝑛𝑓𝑙𝑢𝑒𝑛𝑐𝑖𝑛𝑔 𝐹𝑎𝑐𝑡𝑜𝑟 + 39
Where, the Influencing Factor (IF) shall be calculated from the following formula:
𝐼𝐹 = 1
2
(𝑎𝑟𝑒𝑎 𝑡𝑦𝑝𝑒 3 + 12⁄ (𝑎𝑟𝑒𝑎 𝑡𝑦𝑝𝑒 2))
(𝑡𝑜𝑡𝑎𝑙 𝑎𝑟𝑒𝑎 𝑜𝑓 𝑐𝑖𝑟𝑐𝑙𝑒) 140𝑚 𝑐𝑖𝑟𝑐𝑙𝑒
+ 1
2
(𝑎𝑟𝑒𝑎 𝑡𝑦𝑝𝑒 3 + 12⁄ (𝑎𝑟𝑒𝑎 𝑡𝑦𝑝𝑒 2))
(𝑡𝑜𝑡𝑎𝑙 𝑎𝑟𝑒𝑎 𝑜𝑓 𝑐𝑖𝑟𝑐𝑙𝑒) 400𝑚 𝑐𝑖𝑟𝑐𝑙𝑒
Two concentric circles of diameter 140 m and 400 m must be drawn or reproduced to scale on
the relevant map, centered on the measurement point in the noise sensitive area. The area of
all the SEPP N-1 Type 2 and 3 zones and reservations must be measured for each of the two
circles from the same map.
Table 10 Calculated SEPP N-1 zoning levels at the identified sensitive
receivers
Nearby
sensitive
receptors
Period Influencing
factor
SEPP N-1
zoning
levels dB(A)
Background
noise levels
LA90 dB(A)
Background
High, Low,
Neutral
Noise Limit
R5-R7
Day
0
50 39 Neutral 50
Evening 44 39 Neutral 44
Night 39 36 Neutral 39
6.3.5 Emergency criteria
Under the SEPP-N1 an allowance is made for situations where an emergency event requires
use of either a standby generator, standby boiler or fire pump. In these situations the noise limit
shall increase by 10 dB for a day period and 5 dB for an evening or night period.
The proposed facility has standby generators and emergency pumps, which in a power failure
or pump house failure may be required to be activated in order to preserve the lives of the
abalone. The abalone require a continual flow of water to provide oxygen and maintain their
temperature, which would be a significant issue during summer months, should a power failure
or pump house issue occur.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 32
Table 11 Emergency criteria
Nearby sensitive
receptors Period Derived noise limit Emergency Noise Limit
NIRV
Day 47 57
Evening 44 49
Night 41 46
SEPP-N1
Day 50 60
Evening 44 49
Night 39 44
6.4 Environmental noise impact
The following section provides a description of the noise modelling scenarios, methodology,
assumptions and results of a cumulative noise assessment undertaken by GHD for the
proposed Nyamat facility relative to the local meteorology, sensitive receiver locations and
associated EPA noise level criteria.
6.4.1 Modelling scenarios
Two noise modelling scenarios were undertake involving the following operating conditions:
Scenario A – Normal operations
Tipper buckets in grow out area (64x)
– 4x main sections
– 4x sub sections
– 4x growout pads in each sub section
Nursery Sand filtration units (16x)
Small nursery pumps (8x)
Nursery compressors (4x)
Nursey blowers
Open channel water flow
Internal roads
Pump house (4x rooms each with 4x pumps plus one standby pump)
Effluent pumps (4x)
Hatchery shed (3x sand filters and 2x blowers)
Live harvest shed (6x sand filters and 2x blowers)
Scenario B – Emergency Generators and Pumps in Use
All of the sources modelled in Scenario 1
Emergency Generators in operation
– 4x stacks (Chimney VDI 3733 algorithm)
– Exhaust Velocity 17 m/s
– Exhaust Gas Temperature 650°C
– Wind Speed 3 m/s
– 4x internal building noise sources (four pumps and generator per pump house room)
Emergency pumps in operation (4x)
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 33
6.4.2 Modelling methodology
Noise modelling was undertaken using Computer Aided Noise Abatement (CadnaA) V 2018-
MR1 noise modelling software to predict the effects of operational related noise from the Project
site.
CadnaA is a computer program for the calculation, assessment and prognosis of noise
propagation. CadnaA calculates environmental noise propagation according to ISO 9613-2,
“Acoustics – Attenuation of sound during propagation outdoors” and other algorithms.
Propagation calculations take into account sound intensity losses due to hemispherical
spreading, atmospheric absorption and ground absorption.
The ISO 9613-2 algorithm also takes into account the presence of a well-developed moderate
ground based temperature inversion, such as commonly occurs on clear, calm nights or
‘downwind’ conditions, which are favourable to sound propagation. As a result, predicted
received noise levels are expected to represent a worst case scenario, however given the
relatively small distances involved, enhancement of noise due to weather is expected to be
minimal.
6.4.3 Attended measurements at existing site
Attended noise measurements were taken at the existing Narrawong facility of equipment
similar to that likely to be deployed in the proposed Nyawong facility. Table 12 shows some of
the on- site equipment producing noise at the Narrawong facility. The corresponding equipment
sound power levels are presented in Table 13.
Table 12 Site equipment at Narrawong site (images taken 28/11/2017)
Secondary Generator Pump 2 Pump 3
Outside Small Generator
Shed
Small Generator HOH SING Air Blower
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 34
Fan (TAG4553T) in small
shed
Small Compressor Water coolers (outside
handling shed)
Carrier Fan Air Conditioner Tipper (emptying)
Pump (Round Tanks) Blower (Round Tanks) Water Inlet (Round Tanks)
Pressure Release (Round
Tanks)
Water Inlet (Blackout) Sand Filter
Large Generator Pump Shed
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 35
Table 13 Measured noise sources at Narrawong facility
Site Noise Source Octave centre frequency (Hz) dB(A)
Lw dB(A) Lin (dB)
31.5 63 125 250 500 1000 2000 4000 8000
Narr
aw
ong
Secondary Generator 31.3 54.2 61.7 73.3 84.2 92.7 91.6 87.1 75.6 98.1 98.3
Pump 2 34.0 52.2 59.7 70.6 75.8 86.8 77.6 71.6 60.1 89.8 91.1
Pump 3 36.4 60.8 64.8 68.8 79.8 89.8 78.8 72.5 64.4 92.6 94.9
Outside Small Generator Shed 35.0 69.5 73.9 82.4 86.9 86.8 84.7 76.6 70.8 99.8 106.9
Small Generator 47.2 81.4 87.5 93.2 100.5 102.8 101.5 96.6 91.5 115.2 119.9
HOH SING Air Blower 35.6 49.9 55.4 63.4 72.3 73.7 70.2 67.7 61.7 79.8 84.4
TAG Fan 34.9 51.9 61.3 66.4 73.9 75.8 72.4 68.5 60.6 81.7 86.5
Small Compressor 34.1 50.5 52.3 62.6 72.0 73.3 71.2 71.6 66.3 80.5 84.3
Water Coolers (handling shed) 33.1 57.4 58.5 66.9 71.0 74.0 74.3 64.6 58.6 80.7 87.8
Carrier Fan 33.4 55.2 61.5 63.9 65.9 67.3 66.0 56.9 49.5 74.5 85.9
Air Conditioner 34.6 52.8 66.8 76.2 75.2 76.9 74.3 68.4 59.5 90.1 96.7
Water Race (eastern) 18.1 30.1 36.4 48.9 60.4 64.9 67.0 64.9 58.0 79.1 79.5
Tipper (eastern) 22.6 37.0 50.0 53.5 63.8 69.1 70.1 67.5 60.9 86.0 87.1
Water Race (nursery) 18.4 35.1 43.6 46.5 59.6 62.9 62.7 59.3 54.0 69.7 71.7
Pump (round tanks) 28.4 47.1 56.5 63.1 64.3 68.4 69.9 68.7 65.3 71.1 75.5
Blower (round tanks) 29.5 47.1 56.4 63.0 71.2 74.2 74.9 71.0 62.8 81.4 83.8
Water Inlet (round tanks) 23.1 39.5 48.5 54.1 60.3 65.2 64.5 69.0 61.4 74.2 76.1
Pressure Release (round tanks) 22.0 43.1 45.7 51.5 58.5 64.2 69.1 73.6 75.9 80.6 81.6
Water Inlet (blackout) 22.8 52.8 49.0 55.6 60.8 66.2 67.9 65.3 60.9 74.2 82.1
Sand Filter 23.8 49.6 46.4 49.8 58.2 62.4 60.0 56.3 59.9 69.0 78.8
Large Generator 49.8 66.5 78.8 89.6 96.9 101.4 102.8 96.9 86.9 108.4 109.4
Walkthrough Pump Shed 34.3 59.4 76.4 83.1 87.7 93.2 93.4 87.6 76.8 97.6 99.6
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 36
6.4.4 Equipment modelled
Table 14 shows the primary noise generating equipment inside the proposed Nyamat facility
and pump station with emergency generators and pumps that were used in the noise model,
with the sound power levels. Graphical representation of 3D model can be found in Figure 18.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 37
Table 14 Equipment modelled for Nyamat facility
Site Noise Source Octave centre frequency (Hz) dB(A)
Lw dB(A) Lin (dB)
31.5 63 125 250 500 1000 2000 4000 8000
Narr
aw
ong
Nursery Enclosure Blower 29.8 44.1 49.6 58.9 69.2 72.6 69.1 65.8 59.8 76.1 78.7
Nursery Small Pump 24.3 43.0 52.4 59.0 60.2 64.3 65.8 64.6 61.2 71.1 75.5
Nursery Sand Filter 25.8 51.6 48.4 51.8 60.2 64.4 62.0 58.3 61.9 69.0 78.8
Nursery Compressor 36.1 52.5 54.3 64.6 74.0 75.3 73.2 73.6 68.3 80.5 84.3
Hatchery Sand Filter 25.8 51.6 48.4 51.8 60.2 64.4 62.0 58.3 61.9 69.0 78.8
Hatchery Blower 37.6 51.9 57.4 65.4 74.3 75.7 72.2 69.7 63.7 79.8 84.4
Live Harvest Sand Filter 25.8 51.6 48.4 51.8 60.2 64.4 62.0 58.3 61.9 69.0 78.8
Live Harvest Blower 37.6 51.9 57.4 65.4 74.3 75.7 72.2 69.7 63.7 79.8 84.4
Effluent Pump 58.8 75.5 85.6 93.5 97.4 101.5 102.6 98.5 91.8 106.9 110.0
Pump House Pump 38.4 62.8 66.8 70.8 81.8 91.8 80.8 74.5 66.4 92.6 94.9
Canal water flow 18.4 35.1 43.6 46.5 59.6 62.9 62.7 59.3 54.0 69.7 71.7
Cars on internal road 48.6 62.6 68.6 72.6 78.6 80.6 76.6 71.6 63.6 84.4 93.3
Trucks on internal road 65.6 76.3 89.8 88.1 87.2 93.7 91.2 86.9 78.2 98.0 109.9
Tipper 34.1 48.5 61.5 65.0 75.3 80.6 81.6 79.0 72.4 86.0 87.1
Store Room Refrigeration 66.0 65.0 70.0 73.0 73.0 71.0 69.0 64.0 60.0 79.1 105.6
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 38
Site Noise Source Octave centre frequency (Hz) dB(A)
Lw dB(A) Lin (dB)
31.5 63 125 250 500 1000 2000 4000 8000 E
merg
ency G
enera
tor
& P
um
ps
Emergency Generator Stack 51.8 68.5 80.8 91.6 98.9 103.4 104.8 98.9 88.9 108.4 109.4
Emergency Generator Internal 33.3 56.2 63.7 75.3 86.2 94.7 93.6 89.1 77.6 98.1 98.3
Emergency Pump 58.8 75.5 85.6 93.5 97.4 101.5 102.6 98.5 91.8 106.9 110
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 39
6.4.5 Modelling assumptions
The following assumptions and parameters were adopted for this noise impact assessment:
A ground absorption coefficient of 0.75 (where 0 is non-porous ground and 1 is porous
ground)
Day, Evening and Night periods were designated as follows:
– Day 7 am to 6 pm (11 hours)
– Evening 6 pm to 10 pm (4 hours)
– Night 10 pm to 7 am (9 hours)
First order of maximum building reflection
Site topography and three dimensional terrain has been incorporated in the model
Canal water flow noise was modelled as a line source and assumed to be operating
continuously throughout the day, evening and night time periods
Facility noise was modelled to be operating continuously throughout the day, evening and
night time period
Tipping buckets were modelled to tip once every 10 minutes for 10 seconds, which is
equivalent to 11 minutes per day, four minutes per evening, and nine minutes per night
time period.
The pump station is assumed to be operating continuously throughout the day, evening
and night time period with four rooms each with five pumps running.
Minimum sound transmission loss for canals as presented in Table 15.
Minimum sound transmission loss through various buildings as presented in Table 16.
Stack attenuation as presented in Table 17. It is also assumed that noise emission at the
noise sensitive receivers does not possess dominant noise characters in accordance with
SEPP N-1
Table 15 Minimum sound transmission loss through various buildings dB(A)
Plant Item Octave Centre Frequency (Hz) Data
Source 63 125 250 500 1000 2000 4000 8000 RW
Nursery Shed
Wall - 31.0 35.0 40.0 47.0 52.0 56.0 - 45 VDI 2571
Nursery Shed
Roof - 31.0 35.0 40.0 47.0 52.0 56.0 - 45 VDI 2571
Live Harvest
Shed Wall - 31.0 35.0 40.0 47.0 52.0 56.0 - 45 VDI 2571
Hatchery Shed
Wall - 31.0 35.0 40.0 47.0 52.0 56.0 - 45 VDI 2571
Effluent Pump
Shed Wall - 31.0 35.0 40.0 47.0 52.0 56.0 - 45 VDI 2571
Effluent Pump
Shed Roof 8.0 10.0 14.0 19.0 24.0 29.0 34.0 34.0 23 GHD
Emergency
Pump Shed
Wall
- 31.0 35.0 40.0 47.0 52.0 56.0 - 45 VDI 2571
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 40
Plant Item Octave Centre Frequency (Hz) Data
Source 63 125 250 500 1000 2000 4000 8000 RW
Emergency
Pump Shed
Roof
8.0 10.0 14.0 19.0 24.0 29.0 34.0 34.0 23 GHD
Pump House
Wall - 44.0 44.0 50.0 56.0 58.0 62.0 - 54 VDI 2571
Pump House
Roof 43.0 43.0 43.0 47.0 55.0 63.0 68.0 73.0 59 INSUL
Table 16 Minimum sound transmission loss for canals dB(A)
Plant Item Octave Centre Frequency (Hz)
Data Source 63 125 250 500 1000 2000 4000 8000 RW
25 mm Solid
Wood Covers 14 19 23 27 24 26 32 - 26
Port Of
Melbourne ECI
Spec
Table 17 Stack attenuation dB(A)
Plant Item Octave Centre Frequency (Hz)
Data Source 63 125 250 500 1000 2000 4000 8000 RW
Generator Stack
Silencer 40 43 46 49 49 45 40 32 48
Port Of
Melbourne ECI
Spec
6.4.6 Predicted noise levels
Night time noise criteria are critical for compliance. Predicted noise levels by the proposed
facility at the various sensitive receivers for the two modelled scenarios are provided in Table 18
and presented graphically in Figure 16 and Figure 17.
The normal operational noise level at the nearest sensitive receiver is predicted to be in
compliance with both the SEPP-N1 criterion and the NIRV criterion for this project.
The cumulative noise level at the nearest sensitive receiver during the operation of the
emergency generator is predicted to be in compliance with both the SEPP-N1 criterion and the
NIRV criterion for this project.
Despite the above predictions, it is possible that the presence of noise characters in the noise
emission may lead to non-compliance. Noise characters include impulsiveness or tonality. For
example, electrical transformers frequently emit tonal “buzz’ noise. Pumps and generators
potentially may exhibit a tone. This is difficult to determine in the absence of detailed information
about noise sources and therefore will require testing during compliance monitoring at local
sensitive receiver locations. Care should be taken to avoid the presence of noise characters
audible at sensitive receivers. It is especially relevant to tonal noise that may evoke a high
adjustment to the measured noise levels.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 41
Table 18 Predicted sound pressure levels dB(A) at modelled receivers
Sensitive
Receiver Period
Relevant
SEPP_N1
and NIRV
Noise
Criteria
LAeq dB(A)
SEPP-N1
Emergency
Generator
Noise Criteria
LAeq dB(A)
Scenario A
Predicted
Noise Levels
LAeq dB(A)
Scenario
B
Predicted
Noise
Levels
LAeq dB(A
Complies
A B
R1
SEPP-N1
Day 50 60 26 30 Y Y
Evening 44 49 16 28 Y Y
Night 39 44 16 28 Y Y
R2
SEPP-N1
Day 50 60 28 35 Y Y
Evening 44 49 25 34 Y Y
Night 39 44 25 34 Y Y
R3
SEPP-N1
Day 50 60 30 37 Y Y
Evening 44 49 25 37 Y Y
Night 39 44 25 37 Y Y
R4
SEPP-N1
Day 50 60 30 38 Y Y
Evening 44 49 26 38 Y Y
Night 39 44 26 38 Y Y
R5
SEPP-N1
Day 50 60 30 38 Y Y
Evening 44 49 25 38 Y Y
Night 39 44 25 38 Y Y
R6
SEPP-N1
Day 50 60 32 42 Y Y
Evening 44 49 28 41 Y Y
Night 39 44 28 41 Y Y
R7
SEPP-N1
Day 50 60 30 40 Y Y
Evening 44 49 26 40 Y Y
Night 39 44 26 40 Y Y
R8
SEPP-N1
Day 50 60 30 39 Y Y
Evening 44 49 27 38 Y Y
Night 39 44 27 38 Y Y
R9
SEPP-N1
Day 50 60 31 39 Y Y
Evening 44 49 27 39 Y Y
Night 39 44 27 39 Y Y
R10
SEPP-N1
Day 50 60 30 39 Y Y
Evening 44 49 26 38 Y Y
Night 39 44 26 38 Y Y
R11
SEPP-N1
Day 50 60 33 42 Y Y
Evening 44 49 28 41 Y Y
Night 39 44 28 41 Y Y
R12
SEPP-N1
Day 50 60 32 42 Y Y
Evening 44 49 28 41 Y Y
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 42
Sensitive
Receiver Period
Relevant
SEPP_N1
and NIRV
Noise
Criteria
LAeq dB(A)
SEPP-N1
Emergency
Generator
Noise Criteria
LAeq dB(A)
Scenario A
Predicted
Noise Levels
LAeq dB(A)
Scenario
B
Predicted
Noise
Levels
LAeq dB(A
Complies
A B
Night 39 44 28 41 Y Y
R13
SEPP-N1
Day 50 60 33 42 Y Y
Evening 44 49 29 41 Y Y
Night 39 44 29 41 Y Y
R14
SEPP-N1
Day 50 60 34 42 Y Y
Evening 44 49 30 41 Y Y
Night 39 44 30 41 Y Y
R15
SEPP-N1
Day 50 60 33 42 Y Y
Evening 44 49 28 41 Y Y
Night 39 44 28 41 Y Y
R16
SEPP-N1
Day 50 60 35 43 Y Y
Evening 44 49 29 43 Y Y
Night 39 44 29 43 Y Y
R17
SEPP-N1
Day 50 60 32 38 Y Y
Evening 44 49 31 37 Y Y
Night 39 44 31 37 Y Y
R18
SEPP-N1
Day 50 60 26 31 Y Y
Evening 44 49 25 31 Y Y
Night 39 44 25 31 Y Y
R19
SEPP-N1
Day 50 60 27 33 Y Y
Evening 44 49 25 33 Y Y
Night 39 44 25 33 Y Y
R20
NIRV
Day 47 57 25 32 Y Y
Evening 44 49 23 32 Y Y
Night 41 46 23 32 Y Y
R21
NIRV
Day 47 57 24 31 Y Y
Evening 44 49 21 31 Y Y
Night 41 46 21 31 Y Y
R22
NIRV
Day 47 57 24 31 Y Y
Evening 44 49 21 30 Y Y
Night 41 46 21 30 Y Y
R23
NIRV
Day 47 57 22 29 Y Y
Evening 44 49 19 29 Y Y
Night 41 46 19 29 Y Y
R24
NIRV
Day 47 57 22 29 Y Y
Evening 44 49 18 28 Y Y
Night 41 46 18 28 Y Y
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 43
Sensitive
Receiver Period
Relevant
SEPP_N1
and NIRV
Noise
Criteria
LAeq dB(A)
SEPP-N1
Emergency
Generator
Noise Criteria
LAeq dB(A)
Scenario A
Predicted
Noise Levels
LAeq dB(A)
Scenario
B
Predicted
Noise
Levels
LAeq dB(A
Complies
A B
R25
NIRV
Day 47 57 21 28 Y Y
Evening 44 49 18 28 Y Y
Night 41 46 18 28 Y Y
R26
NIRV
Day 47 57 20 27 Y Y
Evening 44 49 17 27 Y Y
Night 41 46 17 27 Y Y
R27
NIRV
Day 47 57 20 27 Y Y
Evening 44 49 16 27 Y Y
Night 41 46 16 27 Y Y
R28
NIRV
Day 47 57 19 26 Y Y
Evening 44 49 15 26 Y Y
Night 41 46 15 26 Y Y
R29
NIRV
Day 47 57 19 25 Y Y
Evening 44 49 14 25 Y Y
Night 41 46 14 25 Y Y
R30
NIRV
Day 47 57 19 26 Y Y
Evening 44 49 15 25 Y Y
Night 41 46 15 25 Y Y
R31
NIRV
Day 47 57 19 25 Y Y
Evening 44 49 15 25 Y Y
Night 41 46 15 25 Y Y
R32
NIRV
Day 47 57 19 24 Y Y
Evening 44 49 13 23 Y Y
Night 41 46 13 23 Y Y
R33
NIRV
Day 47 57 22 26 Y Y
Evening 44 49 18 25 Y Y
Night 41 46 18 25 Y Y
R34
NIRV
Day 47 57 39 39 Y Y
Evening 44 49 14 25 Y Y
Night 41 46 14 25 Y Y
R35
NIRV
Day 47 57 25 29 Y Y
Evening 44 49 22 28 Y Y
Night 41 46 22 28 Y Y
R36
NIRV
Day 47 57 23 27 Y Y
Evening 44 49 20 27 Y Y
Night 41 46 20 27 Y Y
R37 Day 47 57 20 26 Y Y
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 44
Sensitive
Receiver Period
Relevant
SEPP_N1
and NIRV
Noise
Criteria
LAeq dB(A)
SEPP-N1
Emergency
Generator
Noise Criteria
LAeq dB(A)
Scenario A
Predicted
Noise Levels
LAeq dB(A)
Scenario
B
Predicted
Noise
Levels
LAeq dB(A
Complies
A B
NIRV Evening 44 49 17 25 Y Y
Night 41 46 17 25 Y Y
R38
NIRV
Day 47 57 17 24 Y Y
Evening 44 49 14 24 Y Y
Night 41 46 14 24 Y Y
R39
NIRV
Day 47 57 16 23 Y Y
Evening 44 49 12 23 Y Y
Night 41 46 12 23 Y Y
R40
NIRV
Day 47 57 15 23 Y Y
Evening 44 49 11 22 Y Y
Night 41 46 11 22 Y Y
R41
NIRV
Day 47 57 17 23 Y Y
Evening 44 49 13 22 Y Y
Night 41 46 13 22 Y Y
R42
NIRV
Day 47 57 16 23 Y Y
Evening 44 49 13 22 Y Y
Night 41 46 13 22 Y Y
Figure 16Predicted Noise Contours for Scenario A:
Normal Operations
3030
30
30
35
553000
553000
553200
553200
553400
553400
553600
553600
553800
553800
554000
554000
554200
554200
554400
554400
554600
554600
5760
000
5760
000
5760
200
5760
200
5760
400
5760
400
5760
600
5760
600
5760
800
5760
800
5761
000
5761
000
5761
200
5761
200
5761
400
5761
400
5761
600
5761
600
Sound PressureLevel dB(A)
>= 35.0 dB(A) >= 40.0 dB(A) >= 45.0 dB(A) >= 50.0 dB(A) >= 55.0 dB(A) >= 60.0 dB(A) >= 65.0 dB(A) >= 70.0 dB(A)
Yumbah Abalone Farm
Noise Impact AssessmentOperational Noise Levels - Scenario A
Noise Contours: LAeq (15 minute)Grid Height: 1.5m, ISO 9613 Algorithm
Figure 17Predicted Noise Contours for Scenario B:
Emergency Generators
3035
35
30
30
553200
553200
553400
553400
553600
553600
553800
553800
554000
554000
554200
554200
554400
554400
554600
554600
5760
000
5760
000
5760
200
5760
200
5760
400
5760
400
5760
600
5760
600
5760
800
5760
800
5761
000
5761
000
5761
200
5761
200
5761
400
5761
400
5761
600
5761
600
Sound PressureLevel dB(A)
>= 35.0 dB(A) >= 40.0 dB(A) >= 45.0 dB(A) >= 50.0 dB(A) >= 55.0 dB(A) >= 60.0 dB(A) >= 65.0 dB(A) >= 70.0 dB(A)
Yumbah Abalone Farm
Noise Impact AssessmentOperational Noise Levels - Scenario B
Noise Contours: LAeq (15 minute)Grid Height: 1.5m, ISO 9613 Algorithm
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 47
Figure 18 Model Overview
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 48
7. Construction noise and vibration
Construction of the plant is projected to take from 3.5 to four years and will be completed over
four major construction phases. The first phase is scheduled to result in the construction of
necessary onsite infrastructure including the office, staff amenity building, the pump pit and the
ocean inlet pipes. The second construction phase involves a significant amount of earthworks
and commissioning of the water pump system. The third phase of construction will result in the
water tanks being constructed. The ancillary solar power plant may be built during the fourth
construction phase or otherwise installed during an earlier phase.
It is envisaged that a substantial amount of concrete works will be performed on site during
construction. The volume of concrete required is estimated volume to be 10,500 m3. About 128
days of concrete works are planned over the construction period. Parts of the construction work
with the highest potential for noise generation are expected to be performed during certain
periods without prolonged noise impact.
Construction of the easements for the intake and discharge water is scheduled to take between
one and three weeks. Construction of the growth modules is scheduled to take about one month
per-module.
7.1 Noise criteria
Victoria does not have statutory limits for air borne construction noise. EPA Victoria has
published two guidance documents:
EPA Publication 1254, Noise Control Guidelines, 2008
EPA Publication 480, Environmental Guidelines for major construction sites, Best
Practice Environmental Management, 1996
EPA Victoria web page (https://www.epa.vic.gov.au/our-work/publications/publication/1996/february/1254)
describes the use of EPA Publication 1254 as:
These guidelines [EPA Publication 1254] are primarily intended to be used by municipal
officers to assist in the resolution of complaints or to avert a possible noise nuisance. Some
guidelines have been prepared so that they could be incorporated into a permit condition of a
development or embodied as a local law. The guidelines are designed, however, to be the
basis of assessment and not the last word.
EPA Publication 1254 provides recommended working hours for construction sites and
guideline levels for works undertaken outside ‘normal working hours’. The recommendations
given in Section 2 of EPA Publication 1254 are summarised in Table 19 and used as the basis
for determining construction noise criteria for the project. They are applicable to residential
receivers only.
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Table 19 Construction and demolition guideline levels, EPA Publication 1254
Time Period Guideline Level
Normal working hours
Monday to Friday 7:00 am to 6:00 pm
Saturdays 7:00 am to 1:00 pm
No noise level guidelines apply
Weekend and evening work hours
Monday to Friday 6:00 pm to 10:00 pm
Saturdays 1:00 pm to 10:00 pm
Sundays – all day
Public holidays – all day
Construction noise levels should not exceed the background LA90 level by: 10 dBA or more for up to 18 months after project commencement
5 dBA or more, after 18 months after project commencement
Night
10:00 pm to 7:00 am any day
Noise is to be inaudible within a habitable room, of any residential premises.
The construction noise criteria for an area should be based on the background noise level
measurements which prevail in the area.
The following key limitations of this guideline have been identified:
The lack of an assessable definition for ‘inaudibility’ for the night period.
The recommendation of ‘inaudibility’ inside habitable rooms at night (Monday to Sunday
10 pm to 7 am) is ambiguous and, due to the subjective nature of audibility, does not
provide the contractor or regulator a means for measuring compliance during works.
The absence of daytime noise criteria.
A project of this size is expected to have long periods of high intensity construction work
during the daytime that could cause a disturbance to nearby sensitive receptors.
As a consequence of the limitation of EPA Publication 1254, it is proposed that other supporting
documents also be considered when determining noise management methods and
environmental performance requirements for the construction phase of the project.
It is proposed that the evening time criteria for the project be based on the “background
+ 10 dB(A)” rule (“background +5 dB(A)” after 18 months of construction) and the night time
criterion be based on the “background +5 dB(A)” rule as per EPA Publication 1254 (refer Table 19).
Background noise monitoring has been completed in multiple locations around the subject area
(refer Section 6.2). In calculating the evening and night time criteria it has been assumed that an
average dwelling provides about 15 dB(A) attenuation with windows partially open (WHO
Guidelines for Community Noise, 1999) and construction noise must be 10 dB(A) below the
internal level for it to be considered inaudible.
Given long term background noise monitoring was performed at two locations close to northern
and southern boundaries of the proposed development, a group approach to noise receivers
has been implemented. It is assumed that the North (including North West) Group of noise
receivers has similar background noise levels as the Frank Lodge Scenic Lookout monitoring
location and the South (including South West) Group has background noise similar to the
Dutton Way monitoring location.
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Construction noise limits for the evening time and night time calculated for the two receiver
groups are summarised in Table 20. It can be seen that for construction activities performed
after 18 months of construction, the evening time criteria are equivalent to the night time limits.
In the absence of clear guidance in Victoria on acceptable construction day time limits, the NSW
Interim Construction Noise Guidelines 2009 have been adopted for this project. The NSW
document recommends that 75 dB(A) criterion should be met to avoid the situation when
residences in the adjacent area are highly affected by noise. Taking into account the scheduled
long duration of construction works, it is proposed that this limit be adopted for day time works.
Table 20 Calculated construction noise limits
Receiver Group Night limit, dB(A)
Evening Limit, dB(A)
Evening Limit after 18 months, dB(A)
Day time limit, dB(A)
North 45 50 45 75*
South 44 49 44 75*
* NSW Interim Construction Noise Guidelines 2009
7.2 Vibration criteria
EPA Publication 480 “Environmental guidelines for major construction sites” recommends that
potential vibration impact will be assessed if construction activities are planned closer than 50 m
from vibration sensitive buildings.
Separation distances for many sensitive receivers are generally greater than 50 m. Therefore,
vibration impacts are not expected to be significant for construction activities performed on the
site itself.
The guidelines below are mainly relevant to construction activities planned close to the southern
boundary of the site and pipe works outside of the plant area, where trenching, pipe laying and
associated works are planned to be close to residential houses.
7.2.1 Damage to buildings and structures
There are two international standards that are recommended for assessing the potential for
vibration damage from construction works:
DIN 4150, Structural Vibration – Part 3: Effects of vibrations on structures (1999)
BS 7385: Evaluation and Measurement for Vibration in Buildings Part 2 (BS 7385)
Figure 19 presents a comparison of the recommended vibration levels from DIN 4150 and
BS 7385. The two standards differ in their functionality. As opposed the “minimal risk of
cosmetic damage” approach adopted in BS 7385 (95% probability of no effect), the “safe limits”
given in DIN 4150 are the levels up to which no damage due to vibration effects has been
observed for the particular class of building. “Damage” defined by DIN 4150 is intended to
include even minor non-structural effects such as superficial cracking in cement render, the
enlargement of cracks already present, and the separation of partitions or intermediate walls
from load bearing walls.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 51
Figure 19 Comparison of vibration criteria in accordance with different
standards
DIN 4150 represents a lower risk of building damage and is recommended for use on this
project. Structural damage criteria are summarised in Table 21. The majority of buildings
surrounding the site which may potentially be affected by construction activities fall into Group 2
of buildings as defined in Table 21. Therefore, these vibration criteria have been adopted as the
baseline vibration limits for construction of the project.
Table 21 Construction and demolition recommendations: DIN 4150
Group Type of structure
Vibration velocity (PPV) in mm/s
At foundation at a frequency of(1) Vibration at horizontal plane of highest floor (all frequencies) < 10 Hz
10 Hz – 50 Hz
50 Hz – 100 Hz
1
Buildings used for commercial purposes, industrial buildings and buildings of similar design
20 20 to 40 40 to 50 40
2 Dwellings and buildings of similar design and/or occupancy
5 5 to 15 15 to 20 15
3
Structures that because of their particular sensitivity to vibration, do not correspond to those listed in Lines 1 or 2 and have intrinsic value (e.g. heritage-listed)
3 3 to 8 8 to 10 8
Note: 1. For frequencies above 100 Hz, the higher values in the 50 Hz to 100 Hz column should be used.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 52
7.2.2 Damage to buried pipework
DIN 4150 provides target vibration levels to minimise damage to buried pipework for short-term
vibration as summarised in Table 22. Very brittle pipes, such as cast iron, may require specific
consideration. In all cases, where the owner of the asset has specific requirements, these take
priority and should not be exceeded.
Table 22 Short term vibration on pipework (peak component level mm/s)
Pipe material Guideline value on pipe (mm/s)
Steel (including welded pipes) 100
Clay, concrete, reinforced concrete, pre-stressed concrete, metal (with/without flanges)
80
Masonry, plastic 50
Notes: 1. Refer to the standard in all situations
2. Long term exposure may warrant a reduction in the guideline value by 50%
3. Pipework assumed to be in god condition and laid with current technology
7.2.3 Human comfort vibration criteria
Intermittent vibration
Humans are generally sensitive to vibration. They can detect vibration levels which are well
below those causing any risk of damage to a building or its content. The actual perception of
motion or vibration may not, in itself, be disturbing or annoying. An individual’s response to that
perception, and whether the vibration is ‘normal’ or ‘abnormal’, depends very strongly on
previous experience and expectations, and on other connotations associated with the perceived
source of the vibration. For example, the vibration that a person responds to as ‘normal’ in a car,
bus or train is considerably higher than what is perceived as ‘normal’ in a shop, office or
dwelling.
The degree of perception for humans in terms of peak particle velocity (PPV) is suggested by
the vibration level categories given in BS 5228-2:2009, as shown in Table 23.
Table 23 Guidance on effects of vibration levels (BS 5228.2)
Approximate vibration level, PPV
Typical degree of perception
0.14 mm/s Vibration might be just perceptible in the most sensitive situations for most vibration frequencies associated with construction. At lower frequencies, people are less sensitive to vibration.
0.3 mm/s Vibration might be just perceptible in residential environments.
1.0 mm/s It is likely that vibration of this level in residential environments will cause complaint, but can be tolerated if prior warning and explanation has been given to residents.
10 mm/s Vibration is likely to be intolerable for any more than a very brief exposure to this level.
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653 | 53
Based on Table 23, the human response to vibration could be summarised as:
A vibration level in the range between 0.14 mm/s to 0.3 mm/s would generate a low
probability of an adverse comment or complaints from residents.
A vibration level in the range between 0.3 mm/s to 1 mm/s would generate the possibility
of adverse comment or complaints from residents.
A vibration level greater than 1 mm/s would likely cause adverse comment or complaint.
For intermittent construction activities a PPV criterion of 0.3 mm/s is recommended, particularly
if they are scheduled for night time.
7.2.4 Human comfort vibration criteria
The Commonwealth or Victorian Governments do not have specific guidelines or criteria that
relate specifically to human comfort from vibration from construction sites. The NSW EPA’s
Assessing Vibration: a technical guideline (2006) provides guideline values for continuous,
transient and intermittent events that are based on a Vibration Dose Value (VDV) rather than a
continuous vibration level. The VDV is dependent upon the level and duration of the vibration
event, as well as the number of events occurring during the daytime or night-time period. The
VDVs recommended in the guideline for vibration of an intermittent nature are presented in the
British Standard 6472 (1992) Guide to evaluation of human exposure to vibration in buildings
(updated in 2008), which nominates criteria for various categories of disturbance, the most
stringent of which are the levels of building vibration associated with a low probability of adverse
comment from occupants. The vibration criteria are summarised in Table 24 as VDV criteria. It
is recommended to adopt night criteria below VDV 0.2 m/s1.75 for night time works and 0.4 for
evening and day time works to reduce the probability of adverse comments from residents.
Table 24 Vibration Dose Values (m/s1.75
) above which various degrees of
adverse comment may be expected in residential buildings
Location Low Probability of Adverse Comment
Adverse Comment Possible
Adverse Comment Probable
Residential buildings - 16 hour day 0.2 to 0.4 0.4 to 0.8 0.8 to 1.6
Residential buildings - 8 hour night 0.1 to 0.2 0.2 to 0.4 0.4 to 0.8
* The above target levels apply for both the vertical and lateral directions, provided appropriate weightings are used
7.3 Modelling of construction noise impact
7.3.1 Simplified methods for calculation
Using Sound Power levels found in the Australian Standard AS2436:2010 ‘Guide to Noise and
Vibration Control on Construction, Demolition and Maintenance Sites’ (Standards Australia,
2010), construction noise as a sound pressure level can be estimated using the distance
attenuation relationship as described in the book “Engineering Noise Control: Theory and
practice” by Bies, D.A and Hansen, C.H. 2003, as follows:
𝑆𝑃𝐿 𝑜𝑟 𝐿𝑝 = 𝑆𝑊𝐿 − 20 𝐿𝑜𝑔(𝑑) + 10 𝐿𝑜𝑔(𝑄) − 11 [𝑑𝐵],
where:
SPL = Sound pressure level at the distance d from the source
SWL = Sound power level of the source
d = Distance (m) between source and receiver
Q = Directivity index (two for hemispherical propagation)
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Propagation calculations take into account sound intensity losses due to hemispherical
spreading, but additional minor losses such as atmospheric absorption, directivity, ground
absorption and shielding are ignored in the calculations. As a result of this and the limited
detailed information at this stage about construction methodologies the potential increase in
noise levels due to atmospheric conditions were not allowed for in the calculations.
In addition, effects due to atmospheric conditions and variability in noise level predictions due to
meteorological influences are likely to only become apparent at distances greater than 100 m
(Bies, 2003). Generally, the greatest construction noise and vibration impacts are expected at
distances less than 100 m. The predicted noise levels at various distances from the noise
source are shown in Appendix D. These indicative distances can be used for controlling noise
from different types of plant and equipment.
7.3.2 Modelling scenarios for construction noise impact
In discussion with Yumbah and the EPA, the following construction works scenarios for the
project have been identified as having the greatest potential for noise impacts on surrounding
sensitive receivers by virtue of the sound pressure levels expected to be emitted and/or their
proximity to sensitive receivers:
1. Suction Pipe Easement “A” - South West of Main Pump House, trenching
2. Suction Pipe Easement “A” - South West of Main Pump House, pipe laying
3. Outlet Pipe Easement “CE” - Central Easement NO.3, excavating
4. Outlet Pipe Easement “CE” - Central Easement NO.3, pipe laying
5. Pump House Main Pump House Construction, excavating
6. Pump House - Main Pump House Construction, foundation concrete pour
7. Sedimentation ponds and culverts - Sediment pond at middle of the south boundary -
Excavation of culvert and pond
8. Sedimentation ponds and culverts - Sediment pond - middle of the south boundary -
concrete pour of culvert and pond (right hand)
9 Grow out Phase Three - Grow out area, middle of the south boundary – concrete pour of
western-most module
Further details of the modelling scenarios, including modelling assumptions, are presented in
Appendix E.
It should be noted that not all of the construction activities and methods have presently been
finalised. For example, direction drilling may be implemented instead of trenching for the laying
of pipes. Noise emissions associated with trenching activities are expected to be higher than
directional drilling and therefore the scenarios modelled based on trenching represent a worse-
case option.
7.3.3 Predicted noise levels
Each of these scenarios was modelled using the ISO-9613 noise prediction algorithm. The
algorithm was developed for generic downwind conditions. The construction equipment and
trucks are considered as point noise sources operated simultaneously. The number of trucks
entering/leaving the site during the particular timeframe of the construction work activity is
considered where important.
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The results of the modelling predictions are shown in Table 25. Corresponding noise contours
are represented in Appendix F. Conclusions on whether the recommended noise criteria are
achieved are summarised in Appendix G.
From Table 25 it is seen that the predicted noise levels frequently exceed the recommended
night time and evening time criteria, while the adopted day time criteria of 75 dB(A) is
comfortably met practically for all modelled scenarios without considering any noise mitigation
measures.
Only Scenario 4, where pipe works are to be undertaken close to receivers 11 and 12, shows
potential for marginal exceedance of the non-mandatory day time criterion of 75 dB(A). It is not
expected that the construction activities associated with this scenario will be performed for a
prolonged period of time.
Noise and vibration impacts can be managed by implementing general noise control practices
or specific noise mitigation solutions if necessary. Vibration impacts can be managed by
keeping safe distances between equipment and structures as described in the following
sections.
Table 25 Predicted construction noise levels for modelled scenarios, dB(A)
Sensitive Receiver
Scenario 1
Scenario 2
Scenario 3
Scenario 4
Scenario 5
Scenario 6
Scenario 7
Scenario 8
Scenario 9
R1 66 69 46 47 63 51 42 32 36
R2 60 63 51 53 44 33 49 37 46
R3 52 54 51 51 41 30 51 40 47
R4 52 54 49 48 42 29 51 40 49
R5 52 54 42 46 41 30 41 33 50
R6 54 56 51 55 39 29 52 41 52
R7 51 53 54 56 38 27 51 41 51
R8 47 49 60 63 35 25 56 45 53
R9 49 51 62 62 36 26 57 47 55
R10 51 52 65 64 36 26 58 48 52
R11 49 51 74 76 35 26 62 52 53
R12 47 48 74 78 35 26 66 55 48
R13 48 50 69 74 35 26 67 56 49
R14 49 51 67 71 38 28 68 57 47
R15 42 43 56 56 31 22 65 54 46
R16 48 50 62 62 37 27 65 54 46
R17 45 47 51 50 35 26 49 41 37
R18 37 38 37 40 27 17 39 32 31
R19 33 33 36 39 26 16 45 36 35
R20 40 41 44 46 29 18 46 35 35
R21 39 41 44 48 29 18 45 35 34
R22 39 40 43 46 29 18 44 35 34
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Sensitive Receiver
Scenario 1
Scenario 2
Scenario 3
Scenario 4
Scenario 5
Scenario 6
Scenario 7
Scenario 8
Scenario 9
R23 38 40 42 46 28 18 43 34 33
R24 38 39 42 45 28 18 42 33 33
R25 38 39 42 46 28 18 42 33 32
R26 37 39 42 46 29 18 41 33 33
R27 37 38 41 45 29 19 41 32 31
R28 37 38 39 43 26 15 41 32 31
R29 36 37 38 41 25 14 39 30 29
R30 36 38 40 44 29 19 40 32 31
R31 35 35 36 38 29 19 39 31 31
R32 35 37 39 44 31 20 38 29 30
R33 37 38 44 47 33 23 43 34 33
R34 40 41 41 44 37 25 40 32 33
R35 42 43 47 50 42 31 46 37 38
R36 45 47 46 50 45 34 44 35 38
R37 43 45 42 46 41 29 42 33 35
R38 44 46 39 43 41 31 38 30 32
R39 44 45 38 42 39 27 37 29 31
R40 45 47 38 41 44 32 36 28 30
R41 46 48 41 45 43 32 39 29 32
R42 49 51 41 43 45 33 39 30 32
7.4 Noise and vibration impact management
The results of the construction noise assessment indicate that construction noise is not
expected to be excessive for day time activities. There is a potential for a marginal exceedance
of non-mandatory day time noise criteria for piping works performed close to residential houses
(Western and Central easements). This may be verified by periodic noise and/or vibration
monitoring during relevant construction phases. If the exceedance of the adopted noise criteria
is considered to be excessive, the constructor may choose to implement specific noise
mitigation measures in addition to the typical ones outlined below.
7.4.1 Construction management measures
The following measures should be taken into consideration during the construction of the
project. A Construction Environmental Management Plan (CEMP) should be developed for each
construction phase of the project and should include the following measures, as a minimum:
Justification for work that is likely to be undertaken outside of the standard hours for
construction.
Details and the duration of the activities likely to cause noise emissions that may exceed
the recommended project noise criteria.
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Details clearly demonstrating how site activity will comply with Environmental Guidelines for
Major Construction Sites, EPA Publication 480.
Documented complaint response procedures and how the procedures will be implemented.
Documentation demonstrating that all occupants were provided with advice on dates, times
and nature of any potentially noisy and disruptive activity including measures proposed to
mitigate such.
Name of the onsite person who will be responsible for implementing the operational/staged
CEMP.
7.4.2 General noise mitigation measures
In addition, the following construction noise mitigation measures could be implemented:
The noisiest works should be performed within the standard working hours.
Review available fixed and mobile equipment fleet and prefer more recent and silenced
equipment whenever possible. All equipment used on site should be in good condition and
good working order and machines found to produce excessive noise compared to industry
normal standard should be removed from the site or stood down until repairs or
modifications can be made.
Plan to use equipment which is fit for the required tasks in terms of power requirements.
All engine covers should be kept closed while equipment is operating.
As far as possible, material drop heights into or out of trucks should be minimised.
Broadband reversing alarms (audible movement alarms) should be used for all site
equipment, subject to meeting occupational health and safety requirements and reversing
should be minimised; All combustion engine plant, such as generators, compressors and
welders, should be checked to ensure they produce minimal noise with particular attention
to residential grade exhaust silencers.
Vehicles should be kept properly serviced and fitted with appropriate mufflers. The use of
exhaust brakes should be avoided, where practicable.
Where practical, machines should be operated at low speed or power and should be
switched off when not being used rather than left idling for prolonged periods.
Impact wrenches should be used sparingly with hand tools or quiet hydraulic torque units
preferred.
Haul roads will be kept smooth and free of potholes and bumps.
Mobile noise barriers should be used where higher noise impact is predicted.
7.4.3 General work practices
Activities performed by personnel at the construction site should comply with noise
management rules. All site workers should be aware of the potential for noise impacts and
encouraged to take practical and reasonable measures to minimise the impact during the
course of their activities, including:
Avoiding the use of loud radios.
Avoiding shouting and slamming doors.
Where practical, machines should be operated at low speed or power and switched off
when not being used rather than left idling for prolonged periods.
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Informing truck drivers of designated vehicle routes, parking locations and delivery hours.
Avoiding metal to metal contact on material.
Closing engine covers while equipment is operating.
7.4.4 Complaint management
A complaint system should be implemented and include the following measures as relevant:
Establish a community liaison phone number and permanent site contact number so that
noise related complaints can be received and addressed in a timely manner;
Determine whether any unusual activities were taking place at the time of the complaint that
may have generated higher noise levels than usual;
If noise levels are excessive implement further management measures;
On receipt of a noise and/or vibration complaint:
– A written response to a complaint will be provided within five days, including any
outcomes and management measures.
– An email response to an electronic complaint will be provided within two days if the
complaint cannot be resolved by an initial response.
7.4.1 Specific noise mitigation measures
Results of the construction noise modelling show that noise impact may be relatively high at
dwellings located close to the zones of projected pipe works. Therefore, the contactor may
choose to implement additional noise mitigation measures such as acoustic barriers or
enclosures.
Acoustical efficiency of some possible mitigation measures can be found in Appendix H. It
should be noted that actual attenuation of implemented measures depends on a number of
factors and will likely be in line with the reductions presented in Table 26.
Houses where noise impacts are predicted to marginally exceed the recommended limits
correspond to modelled Scenario 4. It is recommended that temporary sound barriers be
installed prior to the commencement of the Scenario 4 works and in other situations where pipe
works come close to residential areas.
The acoustic efficiency of the barrier solutions depends on the correct installation of the noise
mitigation measures. It is recommended that specialised acoustic barriers be used (similar to
Appendix H). Assembly of the barriers or partial enclosures should be performed carefully. It
should exclude gaps at the bottom and sides of the panels. It is recommended that “U” shape
configuration of the barriers be used whenever it is possible. Partial enclosures (with top
coverage) should be used in areas where high residual impact is predicted.
Other specific noise mitigation measures may include:
Mobile barriers that can be installed along the work area and transported as the work
progresses
Partial enclosures of working areas
Full mobile enclosures (if practicable)
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Table 26 Typical attenuations for source to receptor noise control methods
Control by Nominal noise reduction possible, in total A-weighted sound pressure level, dB(A)
Distance Approximately 6 for each doubling of distance
Screening Normally 5 to 10, maximum of 15
Enclosure Normally 15 to 25, maximum of 50
Notification letters should be provided to affected residents prior to the commencement of works
adjacent to their properties and should include information on:
The date of the noise works
The expected duration of the noisiest activities
The use and provision of individual protective measures such as earplugs (for short
duration impacts of one to two nights only and on a case-by case basis)
7.4.2 Vibration impact management
It is understood that it will not be always possible to perform the intended construction work
activities at substantial distance from affected structures. Nonetheless, it is recommended to
reference the safe separation distances suggested in the Construction Noise Strategy
(Transport for NSW, 2017) as a guide. The distances are summarised in Table 27.
The safe working distances for building damage should be complied with where practical. The
distances are noted as being indicative and would vary depending on the particular item of plant
proposed to be employed and local geotechnical conditions. They apply to addressing the risk
of cosmetic (minor, easily reparable) damage of typical buildings under typical geotechnical
conditions.
Where vibration intensive works are required to be undertaken within the specified safe working
distances, vibration monitoring should be undertaken to ensure acceptable levels of vibration
are satisfied. The required locations for vibration intensive equipment should be reviewed during
detailed design to account for finalised information relating to the ground propagation
characteristics, equipment type and specific works location.
In relation to human comfort, the safe working distances relate to continuous vibration. For most
construction activities, vibration emissions are intermittent in nature and for this reason, higher
vibration levels, occurring over shorter periods are allowed.
Table 27 Recommended safe working distances for vibration intensive plant
Plant Item Rating/Description
Safe Working Distance
Cosmetic Damage (7.5 mm/s)
Human Response (NSW EPA Vibration Guideline)
Vibratory Roller
< 50 kN (Typically 1-2t) 5 m 15 m to 20 m
< 100 kN (Typically 2-4t) 6 m 20 m
< 200 kN (Typically 4-6t) 12 m 40 m
< 300 kN (Typically 7-13t) ** 15 m 100 m
> 300 kN (Typically 13-18t) 20 m 100 m
> 300 kN (Typically > 18t) * 25 m 100 m
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Plant Item Rating/Description
Safe Working Distance
Cosmetic Damage (7.5 mm/s)
Human Response (NSW EPA Vibration Guideline)
Small Hydraulic Hammer
300 kg - 5 to 12t excavator 2 m 7 m
Medium Hydraulic Hammer
900 kg - 12 to 18t excavator ** 7 m 23 m
Large Hydraulic Hammer
1600 kg - 18 to 34t excavator ** 23 m 73 m
Vibratory Pile Driver
Sheet piles 2 m to 20 m 20 m
Pile Boring < 800 mm 2 m (nominal) 4 m
Jackhammer Hand held 1 m (nominal) Avoid contact with structure
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8. Conclusion
The conclusions reached in this assessment are summarised in the following sections.
This report is subject to, and must be read in conjunction with, the limitations set out in section 1.3
and the assumptions and qualifications contained throughout the Report.
8.1 Odour assessment
No significant odour was noted onsite during the site visit at the existing Narrawong
facility, with only very minor odour noted at the mortalities bin, which dissipated within 2-3
metres from the bin area. No significant odour was noted at the lagoons with the
exception of odour from water fowl frequenting the lagoons. No discernible odour was
noted emanating from any of the grow out sheds.
Mortality management will be greatly improved at the new Nyamat facility with all
mortalities being collected on a daily basis and placed in freezers inside the Abalone
Mortalities and Storage facility. Once freezers are nearing full, abalone mortalities will be
transported offsite for disposal at either the local municipal landfill or a suitable rendering
facility. Management of mortalities in this manner is expected to reduce any odour from
mortalities significantly to the point where it is expected to be insignificant onsite and not
noticeable beyond the property boundary.
Bird management will be greatly improved at the new Nyamat facility with all ponds and
retention basins being covered in a bird mesh, preventing birds from settling onsite at
these locations. Management of birds in this manner is expected to reduce any odour
from faecal defecation significantly to the point where it is expected to be no more than
minor onsite and not noticeable beyond the property boundary to any degree other than
what seabirds are already contributing to the beach front location.
The meteorology for the area demonstrates there are very few occurrences of low winds
and stable meteorology, as would be expected due to the site’s coastal location. Hence,
good air flow and mixing will aid in preventing any build-up of odours occurring at the site
should an upset condition occur, such as significant sudden abalone population reduction
or some other phenomena.
There is no default odour buffer for land based aquaculture or abalone farms under the
table to Clause 52.10 of the VPS or the EPA guideline 1518.
8.2 Operational noise assessment
The strictest noise criteria required to be achieved at a nearest sensitive receiver is the
night time SEPP-N1 criteria of 39 dB LAeq for sensitive receivers R1 to R19 along Dutton
Way. All other receivers must meet 41 dB LAeq during the night time period under the
NIRV criteria.
Sensitive receiver locations along Dutton Way are predicted to comply with the day,
evening and night time criteria under the SEPP-N1 assuming that the required noise
mitigation measures specified in Section 8.5 are implemented.
All rural receivers under the NIRV are predicted to comply with the day, evening and night
time criteria following mitigation.
Predicted noise levels when the emergency generator and emergency pump stations are
in operation are predicted to comply with the day, evening and night time criteria following
mitigation as described in Section 8.5.
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8.3 Construction noise assessment
Assessment of construction noise from the site shows that works performed during the
day time are not predicted to have a detrimental impact on the surrounding sensitive
receivers. Noise levels are predicted not to exceed noise criteria in relevant guidelines
during the evening and night time periods for many modelled scenarios.
Particular construction works (easements for pipe works) performed close to residential
premises may result in marginal exceedance of the non-statutory day time limit. It is
recommended that additional noise mitigation measures outlined in this report, such as
acoustic barriers or enclosures, are implemented, as appropriate.
8.4 Construction vibration assessment
Where works are being undertaken within 50 m of properties there is potential for vibration
from construction activities. In this case, an assessment of the high vibration activities
should be undertaken and notification of the activities and their timing should be provided to
the residents prior to works beginning.
The most likely areas where significant vibration impacts may occur would be during the
construction of intake and discharge piping for the project.
8.5 Required noise mitigation
Operations
The following noise mitigation will be required in order to meet the above predicted compliance
levels.
25 mm thick solid wooden board or equivalent covers to be placed on all external and
internal canals in order to mitigate noise (RW26) from water canals.
Emergency generators are to have primary silencers fitted (RW48) on the exhaust to
ensure no more than 65 dB(A) at 1 m from the exhaust.
Construction
It is recommended that works not be performed during the evening or night periods unless
essential and the general and/or specific noise mitigation measures outlined in this report
are implemented, as appropriate.
It is recommended that the general noise and vibration control measures be implemented
during the project’s four construction phases. If necessary, the specific noise mitigation
measures outlined in this report, such as acoustic barriers or enclosures, should be
implemented for pipe works planned close to residential buildings.
8.6 Additional noise mitigation and considerations
The following additional noise mitigation should be considered to further reduce onsite possible
operational noise impacts on the surrounding community:
Extending the earthen bund along Dutton Way from the pump station or creating isolated
bunds around the emergency pump sheds and sediment pump sheds.
Review selection of roofing materials on the emergency pump sheds and the sediment
pump sheds.
Consider relocating the sediment pumps and emergency pumps in individual bunkers down
at the main pump house location. Care should be taken about the final choice of equipment
to avoid potential audibility of noise characters audible at the affected receivers. This is
especially relevant to potential tone audibility that may evoke a substantial adjustment
applied to measured levels.
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9. Bibliography
Australia, S. (1997). Acoustics - Description and measurement of environmental noise.
Australian Standard AS 1055.2:1997 - Acoustics - Description and measurement of
environmental noise. NSW, Australia: Standards Australia
Bailey, D. T. (2000). Meteorological Monitoring Guidance for Regulatory Modelling Applications
Report No. EPA-454\R-99-005. US EPA - United States Government
Bies, D. a. (2003). Engineering Noise Control : Theory and practice. Oxon: Spon Press
Department of Primary Industries. (2005 (September)). Planning Guidelines for Land Based
Aquaculture in Victoria. Fisheries Victoria Report Series No.21. Melbourne: Department of
Primary Industries
EPA Victoria. (1990, July). Recommended Buffer Distances for Industrial residual Air Emissions,
Publication AQ 2/86. Melbourne: EPA Victoria
EPA Victoria. (2008). Noise Control Guidelines. Publication 1254. Victoria: Environment
Protection Authority Victoria
EPA Victoria. (2011). Noise from Industry in Regional Victoria (NIRV) (EPA - Publication 1411).
Victoria: EPA Victoria
EPA Victoria. (2013, March). Recommended Separation Distances For Industrial Residual Air
Emissions - Publication number 1518. Melbourne: EPA Victoria
International Standards (ISO). (1996). Acoustics – Descriptions, measurement and assessment
of environmental noise. International Standards
Standards Australia. (2010). AS2436:2010 - Guide to Noise and Vibration Control on
Construction, Demolition and Maintenance Sites. Standards Australia
Victorian Government. (1989, May 16). State Environment Protection Policy (Control of Noise
from Commerce, Industry and Trade) No. N-1. Victorian Government Gazette, Special, No S31,
pp. 1-19
Victorian Government. (1989). State Environment Protection Policy (Control of Noise from
Commerce, Industry and Trade) No. N-1 (SEPP N-1). Melbourne: Environment Protection
Authority Victoria
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Appendices
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Appendix A – Frank Lodge scenic lookout
Daily logger charts
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Appendix B – Dutton Way
Daily logger charts
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Appendix C – Site plans
Elevation Drawings for the Abalone Farm
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Appendix D – Typical construction plant and equipment noise levels
Typical construction plant and equipment noise levels at various distances from source
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Source
Sound Power Level
dB(A)
Sound Pressure Levels dB(A) at Various Distances (m)
15 m
80 m
100 m
200 m
500 m
1000 m
2000 m
4000 m
8000 m
10000 m
Asphalt Paver 108 76 62 60 54 46 40 34 28 22 20
Asphalt Rotomill 111 79 65 63 57 49 43 37 31 25 23
Backhoe with Auger 106 74 60 58 52 44 38 32 26 20 18
Bulldozer 108 76 62 60 54 46 40 34 28 22 20
Compactor 113 81 67 65 59 51 45 39 33 27 25
Concrete Pump Truck 108 76 62 60 54 46 40 34 28 22 20
Concrete Saw 117 85 71 69 63 55 49 43 37 31 29
Crane (Mobile) 104 72 58 56 50 42 36 30 24 18 16
Excavator 107 75 61 59 53 45 39 33 27 21 19
Front End Loader 113 81 67 65 59 51 45 39 33 27 25
Generator (Diesel) 99 67 53 51 45 37 31 25 19 13 11
Grader 110 78 64 62 56 48 42 36 30 24 22
Hand Tools (Pneumatic)
116 84 70 68 62 54 48 42 36 30 28
Jack Hammers 121 89 75 73 67 59 53 47 41 35 33
Piling (bored) 111 79 65 63 57 49 43 37 31 25 23
Piling (Impact Sheet)
(Lmax) 137
105 91 89 83 75 69 63 57 51 49
Roller (Vibratory) 108 76 62 60 54 46 40 34 28 22 20
Truck (>20 Tonne) 107 75 61 59 53 45 39 33 27 21 19
Truck (Dump) 117 85 71 69 63 55 49 43 37 31 29
Truck (Water Cart) 107 75 61 59 53 45 39 33 27 21 19
Vehicle (Light Commercial e.g. 4WD)
106 74 60 58 52 44 38 32 26 20 18
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Appendix E – Construction noise modelling scenario
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Scenario No.
Location on Site Activity Equipment proposed in the Model
Most likely affected premises
1 Suction Pipe Easement “A”
South West of Main Pump House
Trenching Excavator, truck, Vibratory compactor
South West, R1
2 Suction Pipe Easement “A”
South West of Main Pump House
Laying pipes in trenches
Truck, backhoe, welding
South West, R1
3 Outlet Pipe Easement “CE”
Central Easement NO.3
Trenching Excavator, truck, Vibratory compactor
South, R11, R12
4 Outlet Pipe Easement “CE”
Central Easement NO.3
Laying pipes in trenches
Truck, backhoe for pipe placement, welding
South, R11, R12
5 Pump House Main Pump House Construction
Excavation Excavator, truck South West, R1
6 Pump House Main Pump House Construction
Foundation Concrete Pour
2x stationary concrete trucks, four concrete trucks per hour in/out of site, 1 x Concrete float
South West, R1
7
Sedimentation
&
Culverts
Sediment pond, middle of the south boundary
Excavation culvert and pond
Excavator, truck South receivers, R14
8
Sedimentation
&
Culverts
Sediment pond, middle of the south boundary
Concrete Pour culvert and pond (right hand)
2x stationary concrete trucks, 4 concrete trucks per hour in/out of site, 1 x Concrete float
South receivers, R14
9 Growout Phase Three
Grow out area, middle of the south boundary
Concrete Pour Western Most Module
2x stationary concrete trucks, 4 concrete trucks per hour in/out of site, 2 x Concrete floats
South receivers, R14
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Appendix F – Construction noise contours for modelling scenario
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Appendix G – Meeting recommended construction noise criteria
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Receiver Period Scenario
1 Scenario
2 Scenario
3 Scenario
4 Scenario
5 Scenario
6 Scenario
7 Scenario
8 Scenario
9
R1
Night N N N N N N Y Y Y
Evening N N Y Y N N Y Y Y
Evening, 18 months N N N N N N Y Y Y
Day Y Y Y Y Y Y Y Y Y
R2
Night N N N N Y Y N Y N
Evening N N N N Y Y Y Y Y
Evening, 18 months N Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R3
Night N N N N Y Y N Y N
Evening N N N N Y Y N Y Y
Evening, 18 months N Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R4
Night N N N N Y Y N Y N
Evening N N Y Y Y Y N Y Y
Evening, 18 months N Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R5
Night N N Y N Y Y Y Y N
Evening N N Y Y Y Y Y Y N
Evening, 18 months N N Y N Y Y Y Y N
Day Y Y Y Y Y Y Y Y Y
R6
Night N N N N Y Y N Y N
Evening N N N N Y Y N Y N
Evening, 18 months N Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R7
Night N N N N Y Y N Y N
Evening N N N N Y Y N Y N
Evening, 18 months N Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R8
Night N N N N Y Y N N N
Evening Y Y N N Y Y N Y N
Evening, 18 months N Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R9
Night N N N N Y Y N N N
Evening N N N N Y Y N Y N
Evening, 18 months N N N N Y Y N N N
Day Y Y Y Y Y Y Y Y Y
R10
Night N N N N Y Y N N N
Evening N N N N Y Y N Y N
Evening, 18 months N Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R11
Night N N N N Y Y N N N
Evening Y N N N Y Y N N N
Evening, 18 months N Y N N N N N N N
Day Y Y Y N Y Y Y Y Y
R12
Night N N N N Y Y N N N
Evening Y Y N N Y Y N N Y
Evening, 18 months N Y N N N N N N N
Day Y Y Y N Y Y Y Y Y
R13
Night N N N N Y Y N N N
Evening Y N N N Y Y N N N
Evening, 18 months N N N N Y Y N N N
Day Y Y Y Y Y Y Y Y Y
R14
Night N N N N Y Y N N N
Evening Y N N N Y Y N N Y
Evening, 18 months N Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R15
Night Y Y N N Y Y N N N
Evening Y Y N N Y Y N N Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R16
Night N N N N Y Y N N N
Evening Y N N N Y Y N N Y
Evening, 18 months N Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R17 Night N N N N Y Y N Y Y
Evening Y Y N N Y Y Y Y Y
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Receiver Period Scenario
1 Scenario
2 Scenario
3 Scenario
4 Scenario
5 Scenario
6 Scenario
7 Scenario
8 Scenario
9
Evening, 18 months N N N N Y Y N Y Y
Day Y Y Y Y Y Y Y Y Y
R18
Night Y Y Y Y Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R19
Night Y Y Y Y Y Y N Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R20
Night Y Y Y N Y Y N Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R21
Night Y Y Y N Y Y N Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y Y N Y Y N Y Y
Day Y Y Y Y Y Y Y Y Y
R22
Night Y Y Y N Y Y N Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R23
Night Y Y Y N Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R24
Night Y Y Y N Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R25
Night Y Y Y N Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y Y N Y Y Y Y Y
Day Y Y Y Y Y Y Y Y Y
R26
Night Y Y Y N Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R27
Night Y Y Y N Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R28
Night Y Y Y Y Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y Y Y Y Y Y Y Y
Day Y Y Y Y Y Y Y Y Y
R29
Night Y Y Y Y Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y Y Y Y Y Y Y Y
Day Y Y Y Y Y Y Y Y Y
R30
Night Y Y Y Y Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R31
Night Y Y Y Y Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R32
Night Y Y Y Y Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R33
Night Y Y Y N Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y Y N Y Y Y Y Y
Day Y Y Y Y Y Y Y Y Y
R34 Night Y Y Y Y Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
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Receiver Period Scenario
1 Scenario
2 Scenario
3 Scenario
4 Scenario
5 Scenario
6 Scenario
7 Scenario
8 Scenario
9
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R35
Night Y Y N N Y Y N Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R36
Night Y N N N N Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R37
Night Y Y Y N Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y Y N Y Y Y Y Y
Day Y Y Y Y Y Y Y Y Y
R38
Night Y N Y Y Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R39
Night Y N Y Y Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R40
Night Y N Y Y Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months Y Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
R41
Night N N Y Y Y Y Y Y Y
Evening Y Y Y Y Y Y Y Y Y
Evening, 18 months N N Y Y Y Y Y Y Y
Day Y Y Y Y Y Y Y Y Y
R42
Night N N Y Y Y Y Y Y Y
Evening Y N Y Y Y Y Y Y Y
Evening, 18 months N Y N N N N N N N
Day Y Y Y Y Y Y Y Y Y
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653
Appendix H – Acoustic attenuation data for mitigation of construction noise
GHD | Report for Yumbah Aquaculture Ltd - Yumbah Aquaculture Planning & Works Approval, 3135653
Product Rw, dB NRC
Sonic Panels & Walls
225 24 0.8
V50 31 1
V100 37 1.1
Super Panel 47 1.0
Sonic Curtains
6 kg/m^2 30 0.75
4 kg/m^2 27 0.75
Quilt 13-24 0.75
Tent 12-24 N/A
Sheet 2 mm 17 N/A
Strips 3 mm 19 N/A
Strips 4 mm 19 N/A
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3135653-25404/https://projects.ghd.com/oc/Victoria/aquacultureparkwaaan/Delivery/Documents/3135653-REP-Rev0-Yumbah Odour and Noise Assessment_Report_26_10_18.docx
Document Status
Revision Author Reviewer Approved for Issue
Name Signature Name Signature Date DRAFT A
10/10/2018
DRAFT B
24/10/2018
0 V Lenchine C McVie M Koller 26/10/2018
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