November 2004 (PDF 11.6 MB) - Barrick Gold Corporation

More documents

Recommendations

Info

Cowal Gold Project – Noise Management Plan• the DEC is contacted in the event that noise at dwellings is in excess of criteria stated in Table 1(during construction) or Table 2 (during operations);• the DEC is contacted in the event that a demonstrable disturbance to bird breeding or otherwildlife is detected;• Barrick proposes remedial measures to be carried out in concurrence with the DEC; and• the remedial measures are carried out as directed by the DEC, in consultation with DEC (NPWS)if monitoring demonstrates bird breeding is impacted.11.1 NOISE REMEDIAL MEASURESThe following remedial measures that could be applied to Project construction and operation activitieshave been sourced from Section 7 of the INP (Appendix A).Section 7.1 of the INP (Appendix A) states that there are three main mitigation strategies for noisecontrol:1. Controlling noise at the source.2. Controlling the transmission of noise.3. Controlling noise at the receiver.Section 7.5 of the INP (Appendix A) states these strategies in the above order of preference. Landusecontrols as an additional strategy is most preferable (Appendix A) and relates to strategicdecisions in land-use planning. Whilst it is considered that this strategy is beyond the scope of theNMP, property acquisition is addressed in Section 11.1.2.11.1.1 Controlling Noise at the SourceThere are two approaches discussed in Section 7.2 of the INP (Appendix A):1. Best Management Practice; and2. Best Available Technology Economically Achievable.Best Management PracticeBest management practices that may be applied to reduce Project noise emissions include:• restricting movement of trucks on ridgelines and exposed haul routes where their noise canpropagate over a wide area, especially at night. This means restricting night-time movement ofmaterial to areas shielded by barriers or mounds, and reserving large-scale material movementfor daytime. The lake protection bund, once constructed, will provide some noise shielding,thereby reducing noise levels that could propagate from the open pit across Lake Cowal;• scheduling the use of any noisy equipment during daytime;• siting noisy equipment behind structures that act as barriers, or at the greatest distance from thenoise-sensitive area, or orienting the equipment so that noise emissions are directed away fromany sensitive areas, to achieve the maximum attenuation of noise;• where there are several noisy pieces of equipment, scheduling operations so they are usedseparately rather than concurrently;• keeping equipment well maintained;HAL-02-07/1/NMP01-P/17/11/04 30 BARRICK
Cowal Gold Project – Noise Management Plan• employing ‘quiet’ practices when operating equipment (eg. positioning idling trucks in appropriateareas);• educating staff on the effects of noise and the use of quiet work practices;• specify maximum noise/sound levels when purchasing equipment; and• include maximum noise/sound levels in tender documents and contracts.Best Available Technology Economically AchievableBest available technology economically achievable that may be applied to reduce Project noiseemissions include:• adjusting reversing alarms on heavy equipment to make them ‘smarter’, limiting acoustic range tothe immediate danger area;• using equipment with efficient mufflers and using quieter engines (such as electric instead ofinternal combustion);• using efficient enclosures for noise;• using vibratory piling in place of impact piling;• using high-pressure hydraulic systems to split rock instead of hydraulic or pneumatic hammers;• damping or lining metal trays; and/or• employing active noise control measures.11.1.2 Controlling Noise in TransmissionBarriers may be constructed or relocated to control the transmission of noise from the noise source.As stated in Section 7.3 of the INP (Appendix A), barriers are more effective if they are near the noisesource or noise receiver. Their effectiveness is also determined by their height, the properties ofmaterials used (absorptive or reflective) and their density (Appendix A). Barriers that may be used tocontrol noise levels where required at the Project, would be constructed of earth material and wouldbe vegetated for screening, erosion prevention and stability.In addition, Section 7.3 of the INP (Appendix A) discusses property acquisition as part of the processof controlling noise in transmission. Barrick has purchased several properties adjoining the ML Area.The resulting buffer zone (Figure 2) would serve to increase the distance between noise emittingsources and non Barrick-owned residences. Protocols relating to future acquisitions of properties inrelation to noise are outlined in Section 16.11.1.3 Controlling Noise at the ReceiverSection 7.4 of the INP (Appendix A) states that there are two major controls for noise reduction at thereceiver:• insulation; and• double glazing of windows.In addition, construction of noise bunding and/or tree screening at any affected dwelling(s) may beused as an alternative or additional remedial measure.HAL-02-07/1/NMP01-P/17/11/04 31 BARRICK
Page 1 and 2: Cowal Gold ProjectNoiseManagement P
Page 3 and 4: Cowal Gold Project - Noise Manageme
Page 35: 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 and 60: Figure 1.4.Predicting source noise
Page 61 and 62: Figure 1.6.Negotiation process and
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
Page 111 and 112:
In this case, the amenity criterion
Page 113 and 114:
any assessment period in any season
Page 115 and 116:
In this case the intrusive criterio
Page 117 and 118:
able to show that the wind-induced
Page 119 and 120:
Take the background noise measureme
Page 121 and 122:
Appendix C Procedure for assessing
Page 123 and 124:
The sections below outline the proc
Page 125 and 126:
Appendix D Estimating noise increas
Page 127 and 128:
Table E2. Step procedure for determ
Page 129 and 130:
• hourly or three-hourly cloud ce
Page 131 and 132:
Table E7. Aerodynamic roughness of
Page 133 and 134:
Appendix FPercentage occurrence of
Page 135 and 136:
282000 1354000 20-25284000 1354000
Page 137 and 138:
394000 1362000 45-50256000 1364000
Page 139 and 140:
366000 1372000 45-50368000 1372000
Page 141 and 142:
338000 1382000 25-30340000 1382000
Page 143 and 144:
310000 1392000 20-25312000 1392000
Page 145 and 146:
282000 1402000 25-30284000 1402000
Page 147 and 148:
394000 1410000 20-25256000 1412000
Page 149 and 150:
366000 1420000 20-25368000 1420000
Page 151 and 152:
338000 1430000 15-20340000 1430000
Page 153 and 154:
310000 1440000 20-25312000 1440000
Page 155 and 156:
282000 1450000 20-25284000 1450000
Page 157:
Cowal Gold Project - Noise Manageme
Page 197:
Page 291:
show all

November 2004 (PDF 11.6 MB) - Barrick Gold Corporation

Create successful ePaper yourself

Delete template?

Save as template?