November 2004 (PDF 11.6 MB) - Barrick Gold Corporation

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Cowal <strong>Gold</strong> Project – Noise Management PlanThe surface roughness correction factor given in Section E4 of Appendix E of the INP (Appendix A) is(Z 0 /15 cm) 0.2 , where Z 0 is the average surface roughness in centimetres within a radius of 1 to 3 km ofthe source. Therefore, assuming Z 0 = 4 cm, the correction factor is 0.77 and Table 12 is modified toreflect this (Table 13). The night-time Pasquill stability categories are presented in Table 14.Table 13Modified Wind Fluctuation Criteria for Estimating Pasquill Stability CategoriesPasquill StabilityCategoryStandard Deviation of the Horizontal Wind DirectionFluctuations3,4 (σ Α in degrees)A σ A ≥ 17.3B 13.5 ≤ σ A
Cowal <strong>Gold</strong> Project – Noise Management Plan• meteorological conditions, including temperature inversions;• nature of complaint; and• response action taken to date.The complaints register will be updated and attended to by the Environmental Manager.6.3 IDENTIFICATION OF HIGHER LEVEL IMPACTS OR PATTERNS BETWEEN NOISECOMPLAINTS AND TEMPERATURE INVERSIONSIn accordance with Consent Condition 6.4(a), data from the on-site meteorological station will be usedto determine the existence of temperature inversions (Section 6.1). The occurrence of anytemperature inversions will be compared with noise complaint details (Section 6.2) to determinewhether any higher level of impacts or patterns of temperature inversions have occurred.The details of complaints received by the Environmental Manager will be entered into the complaintsregister. The receiving of any complaints will prompt the Environmental Manager to assess whethertemperature inversions are contributing to the noise complaint.Higher level impacts in relation to temperature inversions will only be apparent after a number ofcomplaints during temperature inversions have been received. Higher level impacts in relation totemperature inversions will be presented in the AEMR (Section 17).6.4 QUANTIFICATION AND AMELIORATION OF ENHANCED IMPACTS DUE TOTEMPERATURE INVERSIONSQuantificationIn accordance with Consent Condition 6.4(a)(ii), should enhanced noise impacts be identified in theprocess described in Section 6.3, monitoring will occur at the source of the complaint to quantify thedegree of enhanced impact against noise exceedance criteria. Monitoring should be undertaken bothduring periods of temperature inversion and during the daytime, when temperature inversions are notexperienced, to enable quantification of the contribution of the temperature inversion to noise impacts.AmeliorationWhere numbers of noise complaints indicate higher levels of noise impact due to temperatureinversions, as quantified (Section 6.4), measures will be taken to ameliorate enhanced impacts undertemperature inversion conditions. Noise reduction strategies and procedures for reducing noiseemissions from the Project are outlined in Section 10, whilst Section 11 details remedial measuresthat could be applied.7 NOISE INVESTIGATIONS PLANIn accordance with Consent Condition 8.4(a)(i), monitoring will be conducted at near-by residencesand bird breeding areas to evaluate, assess and report the L A10(15 minute) and L Aeq(15 minute) noise emissionlevels due to normal operations of the mine during prevailing conditions, except during:• rain; and/or• wind speeds greater than 3 m/s; and/orHAL-02-07/1/NMP01-P/17/11/04 19 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
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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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282000 1402000 25-30284000 1402000
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394000 1410000 20-25256000 1412000
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310000 1440000 20-25312000 1440000
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November 2004 (PDF 11.6 MB) - Barrick Gold Corporation

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