November 2004 (PDF 11.6 MB) - Barrick Gold Corporation

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Figure 1.5.Assessing the likelihood of wind and temperature inversionsenhancing noise impacts at a siteConsider wind and temperature inversions(Section 5)Do initial screening testAssume specified default values for wind (Section 5.3.2)and temperature inversions (Section 5.2) in the predictionof noise levels from the source.Noise impactpredicted?NoNo further consideration ofweather conditions requiredTemperature inversionsYesWindDetermine percentage occurrence of temperatureinversions (Section 5.2 & Appendix C)Based on existing data (Bureau of Meteorology)or site measurementsDeterminepercentage of timethe wind direction isfrom source toreceiverIs this > 30% of thetime at night 1 in winter?(Section 5.2)NoIs this > 30% of the time inany period and season?(Section 5.3.1)YesNo further consideration of windand/or temperature inversions neededYesTemperature inversions and associateddrainage wind are a site featureNoise predictions should take account of temperatureinversions using either default inversion values specified inSection 5.2 or measured site-specific dataWind is a site featureNoise predictions should take account ofwind using wind speeds specified inSection 5.3.2 or measured site-specific data1For the purpose of determining the frequency of inversions, night is defined as the period from 1 hour beforesunset to 1 hour after sunrise, taken to be 6 pm to 7 am.NSW industrial noise policy12
Figure 1.6.Negotiation process and consent/licence limitsProject-specific noiselevels exceeded evenwith proposedmitigation measuresNoNegotiation not required—project-specific noise levelsbecome consent conditions(Section 9.0)YesNegotiations between proponent andregulator for acceptable level of impact(Section 8.2)Acceptable level of impact becomesnoise limit on consent or licencecondition (Section 9)Or alternatively,Proponent demonstrates that project- specificnoise levels cannot be feasibly met, andregulator is satisfied that this is the caseNegotiations between proponent and theaffected community for an agreed level ofimpact (Section 8.3)Agreed level of impact becomes noiselimit on consent or licence condition(Section 9)NSW industrial noise policy13
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Cowal Gold ProjectNoiseManagement P
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Cowal Gold Project - Noise Manageme
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Page 9 and 10: Cowal Gold Project - Noise Manageme
Page 47 and 48: For technical information about thi
Page 49 and 50: 1 Policy framework1.1 Overview of t
Page 51 and 52: 2. Measuring and determining existi
Page 53 and 54: Assessing intrusivenessFor assessin
Page 55 and 56: industry were sufficient to alter t
Page 57 and 58: Figure 1.2.The overall process of a
Page 59: Figure 1.4.Predicting source noise
Page 63 and 64: has shown that it is a reasonable a
Page 65 and 66: Table 2.2. Modification to acceptab
Page 67 and 68: egory for the amenity criteria will
Page 69 and 70: activities, they also increase envi
Page 71 and 72: Table 3.1. Methods for determining
Page 73 and 74: Table 3.2. Determining the existing
Page 75 and 76: ambient noise levels can affect the
Page 77 and 78: Table 4.1.Modifying factor correcti
Page 79 and 80: 5 Meteorological conditions5.1 Intr
Page 81 and 82: which is from 10 pm to 7 am.) Winte
Page 83 and 84: around structures. At higher wind s
Page 85 and 86: eing used for a particular project.
Page 87 and 88: • employing ‘quiet’ practices
Page 89 and 90: 3. Control in transmission—the ne
Page 91 and 92: 8 Negotiation process8.1 The proces
Page 93 and 94: Features of a negotiated agreementp
Page 95 and 96: 9 Consent/licence conditionsThe pro
Page 97 and 98: 10 Applying the policy to existingi
Page 99 and 100: 11 Reviewing performanceMonitoring
Page 101 and 102: • the noise instrumentation used.
Page 103 and 104: ReferencesBerglund B. & Lindvall T.
Page 105 and 106: activities may include construction
Page 107 and 108: Spectral characteristics: The frequ
Page 109 and 110: 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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November 2004 (PDF 11.6 MB) - Barrick Gold Corporation

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