November 2004 (PDF 11.6 MB) - Barrick Gold Corporation

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LEGENDNerangCowal540 000 E545 000 E<strong>Barrick</strong>-owned LandMining Lease BoundaryAmbient Noise Monitoring Site6 290 000 N0 2Kilometres4BogeysIsland6 285 000 N6 285 000 NWamboyneMountain‘Coniston’‘Lakeside’6 280 000 NML15356 280 000 NWest Wyalong- Railway‘Cowal West’BurcherCOWALGOLDPROJECT6 275 000 N‘Gumbelah’6 275 000 N‘Hillgrove'‘Lake Cowal'Bland6 270 000 N535 000 E540 000 ESandy545 000 ECreekSoil N o i Stripping s e M a n aManagement g e m e n t P lPlana nFIGURE 2Baseline NoiseMonitoring LocationsHAL-02-07 Noise MP_004E
Cowal <strong>Gold</strong> Project – Noise Management PlanTable 5Summertime L A90 Background Ambient Noise LevelsMonday to Sunday (dBA)Property NameDaytime(7am - 10pm)Night-time(10pm - 7am)Coniston 27 26Lakeside 31 34Lake Cowal 30 25Gumbelah 31 32Source: Richard Heggie Associates, 1997L A10(15 minute) noise level design goals for the Project were developed based on the results of wintertimeand summertime background ambient noise levels in Table 4 and Table 5. These are reflected in theProject construction noise criteria presented in Table 1 (Section 3.1). The operations intrusive noisecriteria (Table 2) have been derived as described in Section 3.2 in accordance with the INP. Theoperations sleep disturbance criteria (Table 2) have been derived in accordance with DECrequirements as per Chapter 19 of the ENCM.5 NOISE IMPACTSSources of noise generation at the Project would include the processing plant (operation phase only),drills, trucks and mobile earthmoving equipment (Richard Heggie Associates, 1997).In order to determine the potential acoustical impact of the Project, a computer model (EnvironmentalNoise Model) was used to assess the relationship between significant proposed noise-emittingactivities, the surrounding terrain, nearby potentially affected residences and bird breeding areas.The major sources of noise were grouped into four distinct categories as follows:• noise emissions from mobile plant and equipment during the construction phase;• noise emissions from mining operations including fixed processing plant and mobile equipment;• ground vibration and air blast emissions resulting from blasting operations (addressed in theBlast Management Plan (BMP)); and• noise emissions from project associated traffic on public roads (addressed in the Traffic NoiseManagement Plan (TNMP)).The following sections will discuss the first two categories of noise sources, with blasting effectsaddressed in the BMP and traffic noise addressed in the TNMP.5.1 IMPACTS DURING CONSTRUCTION PHASEThe following construction works would be required before Project operations commence:• construction of a gravel road along the section of relocated travelling stock reserve;• establishment of the lake protection bund, which provides hydrologic protection to Lake Cowaland sound protection around the perimeter of the mine, waste dumps and process plant;• stripping of waste from the open pit;• commencement of dewatering of aquifers to be intersected by the open pit;• construction of the tailings storages;• construction of the water supply borefield and pipeline across Lake Cowal;HAL-02-07/1/NMP01-P/17/11/04 11 BARRICK
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Page 47 and 48: For technical information about thi
Page 49 and 50: 1 Policy framework1.1 Overview of t
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Page 57 and 58: Figure 1.2.The overall process of a
Page 59 and 60: Figure 1.4.Predicting source noise
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egory for the amenity criteria will
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activities, they also increase envi
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Table 3.1. Methods for determining
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Table 3.2. Determining the existing
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ambient noise levels can affect the
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Table 4.1.Modifying factor correcti
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5 Meteorological conditions5.1 Intr
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which is from 10 pm to 7 am.) Winte
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around structures. At higher wind s
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eing used for a particular project.
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• employing ‘quiet’ practices
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3. Control in transmission—the ne
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8 Negotiation process8.1 The proces
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Features of a negotiated agreementp
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9 Consent/licence conditionsThe pro
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10 Applying the policy to existingi
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11 Reviewing performanceMonitoring
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• the noise instrumentation used.
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ReferencesBerglund B. & Lindvall T.
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activities may include construction
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Spectral characteristics: The frequ
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Table A1. Assessment steps1. Do a p
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In this case, the amenity criterion
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any assessment period in any season
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In this case the intrusive criterio
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able to show that the wind-induced
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Take the background noise measureme
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Appendix C Procedure for assessing
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The sections below outline the proc
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Appendix D Estimating noise increas
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Table E2. Step procedure for determ
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• hourly or three-hourly cloud ce
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Table E7. Aerodynamic roughness of
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Appendix FPercentage occurrence of
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282000 1354000 20-25284000 1354000
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394000 1362000 45-50256000 1364000
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366000 1372000 45-50368000 1372000
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338000 1382000 25-30340000 1382000
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310000 1392000 20-25312000 1392000
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282000 1402000 25-30284000 1402000
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394000 1410000 20-25256000 1412000
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366000 1420000 20-25368000 1420000
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338000 1430000 15-20340000 1430000
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310000 1440000 20-25312000 1440000
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282000 1450000 20-25284000 1450000
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Cowal Gold Project - Noise Manageme
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November 2004 (PDF 11.6 MB) - Barrick Gold Corporation

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