Appendix F - Somerset · Noise Assessment Report-Proposed Extractive Industry-Rocky Gully Road, Coominya F.3 Issue 3. Source measurementswere taken of actual machinery to be used

NoiseAssessmentReport- ProposedExtractive Industry- Rocky Gully Road. Coominya

Appendix F: Responses to Council Peer Review

This Appendix is provided in response to issues raised in a peer review commissioned by Council of the

assessmentas presentedabove (conductedby RB Acoustics Pty Ltd). The specific issues raised are reproduced

below. Responsesto these issuesare presented in the followingSections.

1. The assessment ofnoise impact should be conductedagainstthe 38dBA limit only. The derivation of the46dBA and 41dBA limits by NMS is basedon flawed logic.

2. The layoutofactivities is poorly documented. In addition,in contrast to hard rock quarrieswhich usuallyconduct crushingandscreeningactivities using fixed plant, it is apparentthat theproposedsand andgravelprocessingactivitieswill be conductedusing a mobileplant. As a result, the operatorwill be able to movethe majornoise generatingplantandequipment to anywhereon thesite in response to processing needs. Itappears that NMS have assumedthat the mobileprocessingplant will be locatedsolely in the centreof thedesignatedOperationalAreas. While this might be a reasonable initialassumption,it does not allow the fullimpact ofnoiseemissionto be assessed.Specifically,if the plantwere to operateat pointsmuchclosertothe residencesthan assumed by NMS,higher noise levels will be generated.Compliancewith the 38dBA

noise level limit may bejeopardised as a result.

3. Based on measurementI have conducted on similar plant selections as those identifiedby NMS, the overallaggregatedsource soundpower leveladoptedby NMS maybe 2-3dBA lower than that which is likely tooccurin practice. This apparentunderstatementof the source soundpower levelsmay be due in part to themethodology adoptedby NMS to determine the soundpower levels. The understatement means that theactual noise levels may be 2-3dBAhigher than predicted. (It is recognisedthat NMShaveassumedconservatively that all noisesources willoperatesimultaneously.Even though simultaneousoperation is

unlikely to occurduring normal operating conditions,it is prudentto ensurethat at times ofhigh demandforproduct- le when it may be necessaryto operate all noise sourcesat the same time - that this scenariois examinedas the likely worst-case.)

4. NMShave considerednoiseemissionunder calm wind conditionsonly. Higher noise levels will be

encounteredunderdownwind conditions.It is expectedthat the backgroundnoise levels and, hence, therelevantnoise level limits will increasecorrespondinglyunderdownwind conditions.The increasein thenoise level limit maybe comparableto the increasein the downwind conditions,but NMShavenotexamined this inter-relationship orprovidedany valid justificationfornotconsidering downwindpropagation in the noise modelling.

5. From an inspectionofthenoise contourplots showingthe extentofnoise emission with the 4.Sm highbarriers in place, it appearsthat in each instancethe barrierhas been placed only 3S-40mfrom the source

ofnoise being assessed.For an operatingsandand gravel extractionfacility, this is consideredto be animpractically short separationdistance. It is unlikely that extractiveactivities can be carriedout consistentlyand efficientlyat such short distances. Naturally, as the distanceofseparation increasesbeyondthe 3S-40m

point, the effectivenessof the barrier will be reduced. Consequently, the 9dBA reduction identifiedby NMS

to be requiredis very unlikely to be achieved in practice. This willclearlyjeopardisecompliancewith the38dBA noise level limit. Furthermore, if the actual sourcesoundpower levelsare higherthan thoseassumedby NMS(asnoted aboveat item 3), compliance with the 38dBA limit willbefurtherjeopardised.

6. It is noted that it is proposed that two OperationalAreas will to be established. For some reason, when

assessingthe impactfrom extraction being conductedat the NWand SE extent of the site, NMShave

chosen to adopt thefurtherdistantof the twoOperationalAreas whensiting theprocessingfacilitywithinthe noise model. This action runs counterto expectations ofefficientoperationof thefacilitywhereby thedistancebetween the extractionandprocessingareas wouldbe expectedto be minimisedrather thanmaximised.The assumptionadoptedby NMSalso has the net effect ofarbitrarilyminimising the degree ofnoiseemissionto the NWandSE residences and, hence, showing loweremitted noise levels than wouldbe

expected otherwise.

7. A dredge is proposedto be usedduringforextractionduring "wet years",but no acousticalassessment ofthe noisefrom dredgingactivitieshasbeen conductedor presented.

8. It is not uncommonforsomesand andgraveloperations to choose to extractmaterialusing a bulldozer torip the materialratherthan use and excavatorto dig up the material. The level ofnoisegeneratedby

ripping ofhigh-strength materialin particularis higherthan that generated by excavators. "

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Nolse Assessment Report-·Proposed Extractive Industry- Rocky Gully Road, Coomlnya

F.1 Issue 1.

We understandfrom previouscommunicationwith DEHP that our methodology used to determine criteria is in

accordance with the Guideline - Planning for Noise Control. This Guideline is an appropriate guidance

document for assessment of proposed environmentally relevant activities (and presumably the basis for the

Approval issued by the DES). While Council may require assessment to additional criteria (and apply noise

restrictionsin addition to those imposed by the DES),the assertion that pj]]y the 38 dB(A)criterion should be

considered is unsupportable. It is unclear what 'flawed logic' is claimed in relation to calculationof the

PlanningNoise Levels and ComponentLevels, and no argumenthas been made to furtherconsiderthis issue.

Notwithstanding the above it is reiterated that the 38 dB(A) criterion is referred to in the report, in that it

represents the 'background creep' Leq criteria contained within the Environmental Protection (Noise)Policy

2008. This is the controlling design consideration in our report, on the basis that it is the most onerous

available and we consider ¡Lil criteria must be met for the development to be approved by the various

regulatorybodies. This detail may have been missed in the Acoustics RB review.

It is noted that the 2008 policy has been repealed, and the current Environmental Protection (Noise)Policy

2029 has explicitly removed the absolute value criteria for backgroundcreep. This notwithstanding,Council

has indicted that the 2008 policy is still relevant to its decision making processes, and additional assessment

has therefore been conducted to this 38 dB(A)daytime criterion. Resourceextraction is not proposedduring

the eveningor night periods.

It should however be noted that 'background creep' criteria refer to the LAeq,adj,Tdescriptor, representing

equivalent levels over the relevant time period (in this case, the 7am to 6pm daytime period during which

extraction activities are proposed). This descriptor is substantivelydifferent than the LAeqJhrdeSCriptor applied

to ComponentLevels under the Planningfor Noise Control Guideline. The modellingscenarios presented in the

body of this Report (and also adopted in the additionalassessment conductedbelow) represent continuous

activity during 'peak' periods of full activity. While this is a reasonableworst-·case assumptionfor assessment

to 1.AeadhrCriteria, it will substantiveiy overstate LAeg,..-s,. leveis, as no allowance is made for periods of

inactivity or reducedactivity for any of the modelled sources. Even during days of peak resource extraction,

individual sources (i.e.excavators,front end loaders)will operatesomewhat intermittentlythroughoutthe day,

and while Ihr of continuous activity is likely from each source (and concurrentactivity plausible),continuous

activity over an 11hr period without pause from any source is a patently unrealistic assumption. Nonetheless,

this methodology has been retained to provide a highly conservative estimate of potential impacts upon

backgroundlevels in the locale.

F.2 Issue 2.

The precise layout of extractive and processing activities will necessarilyvary over time, as extraction willfundamentally affect natural ground levels. Assessment has therefore been conducted under worst-case

scenarios, which do not include any screeningaround the operational areas (although stockpileswill provide

screeningto varyingdegreesthroughoutthe lifespanof the development). While mobile processingplant may

be used on site, it is understood that processing activity is not proposed outside of the operational areas as

assessed. Noise impactsfrom mobileplant closerto sensitive receivershas therefore not been modelled.

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Noise Assessment Report - ProposedExtractiveIndustry- RockyGully Road, Coominya

F.3 Issue 3.

Source measurementswere taken of actual machineryto be used on site, and from supplied product data. This

is considered to be a preferable methodology than use of nominal or generic sound power levels. Source

measurementsare presented in the Report (page39), and no argumenthas been made as to errors in the

sound power level calculations,or in noise emission calculations. While the assertion that 'similarplant' may

be 2-3 dB(A) louder in aggregate is potentially supportable (although no detail or data has been provided to

supportthis assertion),this in no way demonstratesthat the presentedcalculations understatenoise impacts.

It is furthermore noted that the 38 dB(A) L.q criterion applied refers to equivalentlevels over the 7am to 6pm

period (asdiscussedin Section F.1)above. The comment regarding'timesof high demand for product' appears

to conflate the different descriptors applicable under the Planning for Noise Control Guideline and the

EnvironmentalProtection (Noise)Policy 2008. While continuous and simultaneousactivity from all sources is a

reasonableworst-caseassumptionfor short interval La descriptors (notwithstandingthat applicationof criteria

using short interval descriptors was summarily excluded as per the comment in Issue 1), this is a patently

unrealistic assumption for activities over an 11hr period. Nonetheless, this assumption has been made as a

highly conservative calculation methodology. It is not considered reasonable to apply an additional 2-3 dB(A)

adjustmentto calculations,as previous measurementsconducted by RB Acoustics presumablyrefer to short

interval source measurements (similar to the methodology presented on page 39, although this cannot be

confirmed as no detail or data has been provided),and are therefore not an appropriate comparison for

Laeq,.ej.1forecasts.

These points notwithstanding .-. and to provide a higher safetymargin to calculations- excavatorsound power

levels have been adjusted by +3 dB(A),representingan additional machineoperating at extraction. It is noted

that this assumption does not reflect proposed activities, and is included purely as guidance for calculations

with an additionalsafety margin.

F.4 Issue 4.

Meteorologicalconditionshave been consideredas per the Planningfor Noise Guideline, and methodological

justification is presented on page 34 & 35. It is unclearwhy direct applicationof the guideline is not a 'valid

justification'. it is nonetheless noted that the methodology used to calculate Rating Background Levels as

applied in this assessment would substantiallyexclude atypical wind effects. The inter-relationshipbetween

downwind conditions and background levels is not an issue represented in the applicable policy guidance

documents, and is therefore not consideredmaterial to the assessment.

F.5 Issue 5.

It is understood from discussion with the operator that provision of 4.5m barriers as modelled is both

achievable and practical. Provision of bunds as recommended in this Report can be Conditioned, and

compliancecan be monitored. The practical operation of resourceextraction is not within the scope of noise

assessment, and advice from the operator regardingproposed activities is taken in good faith. As discussed in

Section F.3 above, the calculation scenarlos are considered to be highly conservative, and the assertion that

predictions understatenoise impacts has not been demonstrated,nor has any detail or data been provided in

support of this notion.

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Noise Assessment Report--ProposedExtractive Industry- Rocky Gully Road, Coominya

F.6 Issue 6.

The locatingof processingactivitiesin the calculationscenarioswas not arbitrary, and reflected the proposed

stagingof extractiveoperations.This notwithstanding-·and to provide additional clarity·-·extractionhas been

assessedassumingprocessingat either of the two operational areas. These additional scenariosare presented

in Appendix G.

F.7 Issue 7.

Dredging activity is not proposedat this stage, and would only occur in response to significant changes to the

site (i.e.,significant flood events or atypical rainfall). This notwithstanding, potential dredge activity has been

included in the additional environmental noise calculations presented in Appendix G, which predicts

compliancewith criteria at all receiversduringthe daytimeperiod. Due to the topographyof the site, dredging

activitywould only occurat thesouth-eastand south-westextractionareas.

F.8 Issue 8.

Bulldozer extraction (i.e. 'ripping') was not proposed as part of the original developmentdesign, and was

therefore not assessed. It has been subsequently assessed that such activity could occur at the northern

extractionarea, although this would depend on the specific materials found during extraction, and excavator

extraction is expected as a general rule. To assess potential noise impacts from 'ripping' activities - should

they occur - bulldozers have been assessed in the additional environmental noise calculations presented in

Appendix G. Compliancewith criteria at all receivers is predictedduring the daytime period, subject to the

provision of 4.5m bunds or earth walls. It is understood that 'rlpping' activity will not occur at the southern

extractiveareas, due to constituentmaterials presentat theseareas.

F.9 Discussion

In response to the issues raised as part of the peer review process commissioned by Council, additional

environmental noise calculationshave been conducted,and are presented in Appendix G. Results from these

additional calculationsare presented in Tables F1- F8 below. As discussedin Section F.1, assessment has been

conducted to 'backgroundcreep' daytime criteria.

It is noted that marginal (up to 2 dB(A))exceedances are forecast under 'no bund' scenarios, which is whollydue to the arbitrary increase to sound power levels as discussed in Section F.3. Nonetheless,it is concluded

that ·-- subject to the recommended provision of acoustic bunds/earthwalls where applicable --· emissionsare

forecast to meet the daytime background creepcriteria under a highlyconservativeworst-casescenario.

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Noise Assessment Report-

Proposed Extractive Industry- Rocky Gully Road, Coominva

Table F1: Additional noise emission calculations and criteria. Levels are in dB(A) Leg,adi,7

Receiver Forecast Criteria Assessment · Receiver Forecast Criteria Assessment

Excavator Extraction - Northern Extractive Area - Eastern Operational Area Processing

No Screening 4.5m Bunds /Earthwall

R1 24 38 Pass R1 24 38 Pass

R2 25 38 Pass R2 25 38 Pass

R3 23 38 Pass R3 23 38 Pass

R4 23 38 Pass R4 23 38 Pass

R5 23 38 Pass R5 23 38 Pass

R6 22 38 Pass R6 22 38 Pass

R7 26 38 Pass R7 26 38 Pass

R8 26 38 Pass R8 26 38 Pass

R9 25 38 Pass R9 25 38 Pass

R10 31 38 Pass R10 31 38 Pass

R11 40 38 +2 R11 35 38 Pass

R12 35 38 Pass R12 35 38 Pass

R13 28 38 Pass R13 28 38 Pass

R14 24 38 Pass R14 24 38 Pass

R15 25 38 Pass R15 25 38 Pass

R16 44 55 Pass R16 44 55 Pass

Excavator Extraction - Northern Extractive Area - Western Operational Area Processing


R1 26 38 Pass R1 26 38 Pass

R2 26.

38 Pass R2 26 38 Pass

R3 25 38 Pass R3 25 38 Pass

R4 27 38 Pass R4 27 38 Pass

R5 27 38 Pass R5 27 38 Pass

R6 27 38 Pass R6 27 38 Pass

R7 31 38 Pass R7 31 38 Pass

R8 28 38 Pass R8 28 38 Pass

R9 27 38 Pass R9 27 38 Pass

Rio 32 38 Pass R10 32 38 Pass

R11 40 38 +2 R11 34 38 Pass

R12 34 38 Pass R12 34 38 Pass

R13 26 38 Pass R13 26 38 Pass

R14 21 38 Pass R14 21 38 Pass

R15 23 38 Pass R15 23 38 Pass

R16 35 55 Pass R16 35 55 Pass

Noise Measurement Services Pty Ltd

Report3773R5 3140ctober201956

Noise Assessment Report- Proposed Extractive Industry - Rocky Gully Road, Coominya

Table F2: Additional noise emission calculations and criteria. Levels are in dB(A) Leq,.sì,1 {continued)

Receiver: Forecast Criteria Assessment Receiver Forecast Criteria Assessment

Excavator Extraction - South-West Extractive Area - Eastern Operational Area Processing


R1 26 38 Pass R1 26 38 Pass

R2 27 38 Pass R2 27 38 Pass

R3 24 38 Pass R3 24 38 Pass

R4 31 38 Pass R4 31 38 Pass

R5 34 38 Pass R5 34 38 Pass

R6 36 38 Pass R6 36 38 Pass

R7 39 38 +1 R7 31 38 Pass

R8 30 38 Pass R8 25 38 Pass

R9 25 38 Pass R9 25 38 Pass

R10 27 38 Pass R10 27 38 Pass

R11 32 38 Pass R11 32 38 Pass

R12 31 38 Pass R12 31 38 Pass

R13 27 38 Pass R13 27 38 Pass

R14 24 38 Pass R14 24 38 Pass

R15 25 38 Pass R15 25 38 Pass

R16 44 55 Pass R16 44 55 Pass

Excavator Extraction- South-Western Extractive Area - Western Operational Area Processing


R1 27 38 Pass R1 27 38 Pass

R2 28 38 Pass ' R2 28 38 Pass

R3 26 38 Pass R3 26 38 Pass

R4 32 38 Pass R4 32 38 Pass

R5 34 38 Pass R5 34 38 Pass

R6 36 38 Pass R6 36 38 Pass

R7 40 38 +2 R7 33 38 Pass

R8 31 38 Pass R8 28 38 Pass

R9 27 38 Pass R9 26 38 Pass

R10 29 38 Pass R10 29 38 Pass

R11 30 38 Pass R11 30 38 Pass

R12 27 38 Pass R12 27 38 Pass

R13 21 38 Pass R13 21 38 Pass

R14 21 38 Pass R14 21 38 Pass

R15 22 38 Pass R15 22 38 Pass

R16 33 55 Pass R16 33 55 Pass


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Noise Assessment Report - Proposed Extractive lndustry--·Rocky Gully Road, Coominya

Table F3: Additional noise emission calculations and criteria. Levels are in dB(A) L.q,.ái,7 {continued)

Receiver+t Forecast Criteria Assessment , Receiver .-Forecast?

Criteria Assessment

Excavator Extraction - South-Eastern Extractive Area southernmost) - Eastern Operational Area Processing

No Screening 4.5m Bunds

/Earthwaii

R1 43 38 +5 R1 33 38 Pass

R2 48 38 +10 R2 37 38 Pass

R3 36 38 Pass R3 28 38 Pass

R4 29 38 Pass R4 29 38 Pass

R5 27 38 Pass R5 27 38 Pass

R6 25 38 Pass R6 25 38 Pass

R7 25 38 Pass R7 25 38 Pass

R8 23 38 Pass R8 23 38 Pass

R9 21 38 Pass R9 21 38 Pass

R10 25 38 Pass R10 25 38 Pass

R11 31 38 Pass R11 31 38 Pass

R12 31 38 Pass R12 31 38 Pass

R13 27 38 Pass R13 27 38 Pass

R14 25 38 Pass R14 25 38 Pass

R15 27 38 Pass R15 27 38 Pass

R16 44 55 Pass R16 44 55 Pass

Excavator Extraction - South-Eastern Extractive Area (southernmost)- Western operational Area Processing


/Earthwall

R1 43 38 +5 R1 33 38 Pass

R2 48 38 +10 R2 37 38 Pass

R3 36 38 Pass R3 28 38 Pass

R4 30 38 Pass R4 30 38 Pass

RS 29 38 Pass R5 29 38 Pass

R6 28 38 Pass R6 28 38 Pass

R7 31 38 Pass R7 31 38 Pass

R8 27 38 Pass R8 27 38 Pass

R9 24 38 Pass R9 24 38 Pass

R10 27 38 Pass R10 27 38 Pass

R11 29 38 Pass R11 29 38 Pass

R12 27 38 Pass R12 27 38 Pass

R13 22 38 Pass R13 22 38 Pass

R14 24 38 Pass R14 24 38 Pass

R15 25 38 Pass R15 25 38 Pass

R16 32 55 Pass R16 32 55 Pass


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Noise Assessment Report - Proposed Extractive Industry-··Rocky Gully Road. Coominya

Table F4: Additional noise emisslon calculations and criteria. Levels are in dB(A) Leg,.sj.y (continued)

Receiver Forecast Criteria Assessment Receiver..tForecast

Criteria Assessment

Excavator Extraction - South-Eastern Extractive Area (mid) -Eastern Operational Area Processing


R1 34 38 Pass R1 30 38 Pass

R2 34 38 Pass R2 33 38 Pass

R3 30 38 Pass R3 28 38 Pass

R4 29 38 Pass R4 29 38 Pass

R5 27 38 Pass R5 27 38 Pass

R6 25 38 Pass R6 25 38 Pass

R7 26 38 Pass R7 26 38 Pass

R8 24 38 Pass R8 24 38 Pass

R9 21 38 Pass R9 21 38 Pass

R10 25 38 Pass R10 25 38 Pass

R11 32 38 Pass R11 32 38 Pass

R12 31 38 Pass R12 31 38 Pass

R13 27 38 Pass R13 27 38 Pass

R14 25 38 Pass R14 24 38 Pass

R15 27 38 Pass R15 25 38 Pass

R16 44 55 Pass R16 44 55 Pass

Excavator Extraction-

South-Eastern Extractive Area (mid) - Western·Operational Area Processing


R1 35 38 Pass R1 31 38 Pass

R2 34 38 Pass R2 34 38 Pass

R3 30 38 Pass R3 29 38 Pass

R4 30 38 Pass R4 30 38 Pass

R5 29 38 Pass R5 29 38 Pass

R6 28 38 Pass R6 28 38 Pass

R7 31 38 Pass R7 31 38 Pass

R8 28 38 Pass R8 28 38 Pass

R9 24 38 Pass R9 24 38 Pass

R10 28 38 Pass R10 28 38 Pass

R11 30 38 Pass R11 30 38 Pass

R12 27 38 Pass R12 27 38 Pass

R13 22 38 Pass R13 22 38 Pass

R14 24 38 Pass R14 22 38 Pass

R15 25 38 Pass R15 22 38 Pass

R16 32 55 Pass R16 32 55 Pass



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Noise Assessment Report - Proposed Extractive Industry - Rocky Gully Road, Coominya

Table F5 Additional noise emission calculations and criteria Levels are in dB(A) L,. e-

(continued)

Receiver Forecast Criteria Assessment Receiver Forecast Criteria Assessment

Excavator Extraction - South-Eastern Extractive Area (initial)- Eastern Operational Area Processing


/Earthwall

R1 28 38 Pass R1 28 38 Pass

R2 29 38 Pass R2 28 38 Pass

R3 26 38 Pass R3 26 38 Pass

R4 27 38 Pass R4 27 38 Pass

R5 25 38 Pass R5 25 38 Pass

R6 25 38 Pass R6 25 38 Pass

R7 27 38 Pass R7 27 38 Pass

R8 25 38 Pass R8 25 38 Pass

R9 22 38 Pass R9 22 38 Pass

R10 26 38 Pass R10 26 38 Pass

R11 32 38 Pass R11 32 38 Pass

R12 32 38 Pass R12 32 38 Pass

R13 27 38 Pass R13 27 38 Pass

R14 25 38 Pass R14 25 38 Pass

R15 26 38 Pass R15 26 38 Pass

R16 44 55 Pass R16 44 55 Pass

Excavator Extraction - South-Eastern Extractive Area (initial)- Western Operational Area Processing

No Screening 4.Sm Bunds

/Earthwall

R1 29 38 Pass R1 29 38 Pass

R2 29 38 Pass R2 29 38 Pass

R3 27 38 Pass R3 27 38 Pass

R4 29 38 Pass R4 29 38 Pass

R5 28 38 Pass R5 28 38 Pass

R6 28 38 Pass R6 28 38 Pass

R7 32 38 Pass R7 32 38 Pass

R8 28 38 Pass R8 28 38 Pass

R9 25 38 Pass R9 25 38 Pass

R10 28 38 Pass R10 28 38 Pass

R11 31 38 Pass R11 31 38 Pass

R12 28 38 Pass R12 28 38 Pass

R13 23 38 Pass R13 23 38 Pass

R14 24 38 Pass R14 23 38 Pass

R15 25 38 Pass R15 23 38 Pass

R16 35 55 Pass R16 35 55 Pass



Noise Assessment Report-

Proposed Extractive Industry-

Rocky Gully Road, Coominya

Table F6: Additional noise emission calculations and criteria. Levels are in dB(A) L,, c/continued)

Receiver Forecast Criteria Assessment Receiver Forecast Criterla Assessment

Bulldozer Ripping - Northern Extractive Area - Eastern Operational Area Processing


R1 26 38 Pass R1 26 38 Pass

R2 27 38 Pass R2 26 38 Pass

R3 25 38 Pass R3 25 38 Pass

R4 26 38 Pass R4 26 38 Pass

R5 26 38 Pass R5 25 38 Pass

R6 25 38 Pass R6 25 38 Pass

R7 29 38 Pass R7 29 38 Pass

R8 29 38 Pass R8 29 38 Pass

R9 29 38 Pass R9 29 38 Pass

R10 36 38 Pass R10 36 38 Pass

R11 46 38 +8 R11 38 38 Pass

R12 38 38 Pass R12 34 38 Pass

R13 31 38 Pass R13 28 38 Pass

R14 25 38 Pass R14 26 38 Pass

R15 27 38 Pass R15 27 38 Pass

R16 42 55 Pass R16 42 55 Pass

Bulldozer Ripping - Northern Extractive Area - Western Operational Area Processing


/Earthwall

R1 27 38 Pass R1 27 38 Pass

R2 27 38 Pass R2 27 38 Pass

R3 26 38 Pass R3 26 38 Pass

R4 28 38 Pass R4 28 38 Pass

R5 28 38 Pass RS 28 38 Pass

R6 28 38 Pass R6 28 38 Pass

R7 32 38 Pass R7 32 38 Pass

R8 31 38 Pass R8 31 38 Pass

R9 30 38 Pass R9 30 38 Pass

R10 36 38 Pass R10 36 38 Pass

R11 46 38 +8 R11 38 38 Pass

R12 38 38 Pass R12 36 38 Pass

R13 30 38 Pass R13 30 38 Pass

R14 24 38 Pass R14 24 38 Pass

R15 25 38 Pass R15 25 38 Pass

R16 38 55 Pass R16 38 55 Pass


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Noise AssessmentReport-ProposedExtractive Industrv-RockyGully Road,Coominya

Table F7: Additional noise emission calculations and criteria. Levels are in dB(A) Leg.adi.T {continued)

Receiver Forecast . Criteria Assessment· Receiver Forecast Criteria Assessment

Dredge Extraction - South-Eastern Extractive Area (southernmost)- Eastern Operational Area Processing


/Earthwall

R1 34 38 Pass R1 25 38 Pass

R2 41 38 +3 R2 30 38 Pass

R3 28 38 Pass R3 23 38 Pass

R4 24 38 Pass R4 22 38 Pass

R5 22 38 Pass R5 21 38 Pass

R6 21 38 Pass R6 21 38 Pass

R7 24 38 Pass R7 24 38 Pass

R8 22 38 Pass R8 22 38 Pass

R9 20 38 Pass R9 20 38 Pass

R10 24 38 Pass R10 24 38 Pass

R11 31 38 Pass R11 31 38 Pass

R12 31 38 Pass R12 31 38 Pass

R13 27 38 Pass R13 27 38 Pass

R14 23 38 Pass R14 23 38 Pass

R15 25 38 Pass R15 24 38 Pass

R16 41 55 Pass R16 41 55 Pass

Dredge Extraction - south-Eastern Extractive Area (southernmost)- Western Operational Area Processing


/Earthwall

R1 34 38 Pass R1 27 38 Pass

R2 41 38 +3 R2 31 38 Pass

R3 29 38 Pass R3 25 38 Pass

R4 27 38 Pass R4 26 38 Pass

RS 27 38 Pass R5 26 38 Pass

R6 27 38 Pass R6 27 38 Pass

R7 31 38 Pass R7 31 38 Pass

R8 27 38 Pass R8 27 38 Pass

R9 24 38 Pass R9 24 38 Pass

R10 27 38 Pass R10 27 38 Pass

R11 29 38 Pass R11 29 38 Pass

R12 26 38 Pass R12 26 38 Pass

R13 21 38 Pass R13 21 38 Pass

R14 21 38 Pass R14 20 38 Pass

R15 22 38 Pass R15 21 38 Pass

R16 30 55 Pass R16 30 55 Pass



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NoiseAssessment Report- ProposedExtractive industry- RockyGully Road, Coominya

Table F8: Additional noise emission calculationsand criteria. Levels are in dB(A)L.9..eL1 (continued)

Receiver Forecast Criteria Assessment Receiver Forecast Criteria Assessment

DredgeExtraction- South-WesternExtractiveArea - No Bund Scenarios

EasternOperational Area Processing WesternOperational Area Processing

R1 24 38 Pass R1 26 38 Pass

R2 25 38 Pass R2 26 38 Pass

R3 22 38 Pass R3 24 38 Pass

R4 25 38 Pass R4 27 38 Pass

R5 26 38 Pass R5 28 38 Pass

R6 28 38 Pass R6 29 38 Pass

R7 31 38 Pass R7 33 38 Pass

R8 24 38 Pass R8 27 38 Pass

R9 21 38 Pass R9 24 38 Pass

R10 25 38 Pass R10 27 38 Pass

R11 31 38 Pass R11 29 38 Pass

R12 31 38 Pass R12 26 38 Pass

R13 26 38 Pass R13 20 38 Pass

R14 23 38 Pass R14 20 38 Pass

R15 24 38 Pass R15 21 38 Pass

R16 41 55 Pass R16 32 55 Pass

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Noise Assessment Report- ProposedExtractive Industry - Rocky Gully Road, Coominya

Appendix G: Additional Environmental Noise Calculations

Additional noise calculations have been conducted generally in accordance with the assumptions and

methodologyas presented in Appendix B. Sound power levels for the additional noise sources considered -namely, bulldozer 'ripping' activity and dredgingactivity- have been calculated from measurements previously

undertakenby NMS of comparable activity, and are presented in Table G1 below. Additionally,sound power

levels for excavator activity (with a gratuitousconservativeadjustmentas discussed in Section F.3) are shown.

Table G1: SoundPower Levels, in dB(Z), L.q. Includesadjustment for impulsiveness.

Source 63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz SkHz

Caterpillar D8T bulldozer 124.8 120.7 122.3 112.6 108.8 110.4 105.7 102.0

Sand extraction dredging 87.4 93.2 97.5 101.2 95.3 97.1 88.8 75.7

Excavator 109.7 108.9 107.2 105.1 103.5 101.1 96.0 88.9

Receiver locations and noise contourmaps are presented in the followingPlates

Plate G1: Show ng rcceiver locations,additional noise calculations

Rocky Gully RdExtractive Indus y

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Plate G2: Noisecontoursat 1.8m, additional scenarios. Levelsare in dB(A) L.q,.a

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a muh a a

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Noise AssessmentReport- ProposedExtractiveIndustry - Rocky Gully Road, Coominya

Plate G3: Noise contours at 1.8m, additional scenarios. Levels are in dB(A)L,q, 1(continued)

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Noise MeasurementServices Pty Ltd eReport 3773R5 31* October 2019

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Plate G4: Noise contoursat 1.8m, additionalscenarios. Levels are in dB(A)L. r(continued)

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late G4: Noise contoursat 1.8m, additionalscenarios. Levels are in dB(A) L,q.si,r(continued)

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Noise MeasurementServicesPty Ltd 4NReport 3773R5 31' October 2019 %.

Noise AssessmentReport- ProposedExtractwe Industry -Rocky Gully Road, Coominya

Plate G5; Noisecontoursat 1.8m, additionalscenarios. Levels are in dB(A) L,q,, (continued)

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Report 3773R5 31" October2019

Noise Assessment Report- Proposed Extractive Industry- Rocky Gully Road, Coominya

Plate G6: Noisecontoursat 1.8m, additionalscenarios. Levelsare in dB(A)L.q¾,r(continued)

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Plate G7: Noisecontoursat 1.8m, additional scenarios. Levels are in dB(A)L, r(continued)

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Plate G8: Noise contours at 1.8m, additional scenarios. Levels are in d8(A) L.q. r(continued)

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Plate G9: Noise contours at 1.8m, additionalscenarios. Levelsare in dB(A)L.q. 7(continued)

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Plate G10: Noise contours at 1.8m, additionalscenarios. Levels are in dB(A) L.q..gr(continued)

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Plate G11: Noisecontoursat 1.8m, additiona scenarios. Levels are in dB(A)L.q. 1(cont naed)

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PlateG13: Noise contoursat 1.8m, additionalscenarios. Levels are in dB(A)L.g.q,r(continued)

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Plate G14: Noisecontours at 1.8m, additionalscenarios. Levels are in dB(A) L.q,, r(continued)

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Plate G15: Noise contoursat 1,8m, additional scenarios. Levels are in dB(A)L.q,.3,1(continued)

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Plate G16: Noisecontoursat 1.8m, additional scenarios. Levels are in dB(A)L.g.si,r(continued)

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Plate G17: Noise contoursat 1.8m, additionalscenarios. Levels are in dB(A)L.q. continued)

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Plate G18: Noise contoursat 1.8m, additional scenarios. Levels are in dB(A) L.q,.,r(continued)

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Plate G19: Noise contours at 1.8m, additionalscenarios. Levels are in dB(A)L.q,, 7 continued)

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Plate G20: Noisecontoursat 1.8m, additionalscenarios. Levels are in dB(A) L.q, 1(continued)

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Plate G21: Noise contoursat 1.8m, additionalscenarios. Levels are in dB(A)L.q.ág1(continued

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Noise Assessment Report - ProposedExtractive industry- Rocky Gully Road, Coominya

Plate G22: Noise contoursat 1.8m, additionalscenarios. Levels are in dB(A) L.q. r(continued)

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Plate G23: Noise contoursat 1.8m, addit onal scenarios. Levels are in dB(A)L.q.,r(continued)

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PlateG24: Noisecontoursat 1.8m, additionalscenarios. Levels are in dB(A) L.q,.g(continued)

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Plate G25: Noisecontoursat 1.8m, additionalscenarios. Levels are in dB(A)L. .e,r(continued)

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Plate G26: Noisecontoursat 1.8m, additionalscenarios. Levels are in dB(A)L. .ai,r(continued)

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Plate G27: Noisecontoursat 1.8m, additional scenarios. Levels are in dB(A)L.q.e 7fcontinued)

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Plate G30: Noise contoursat 1.8m, additionalscenarios. Levels are in dB(A) L,q.4¡,r(continued)

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Report 3773R5 31' October2019

Noise Assessment Report- ProposedExtractive Industry-Rocky Gully Road, CoomEnya

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Appendix F - Somerset · Noise Assessment Report-Proposed Extractive Industry-Rocky Gully Road, Coominya F.3 Issue 3. Source measurementswere taken of actual machinery to be used

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