Appendix J - Peabody Energy

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<strong>Appendix</strong> G1 Report 10-5055-R1 Page 1 of 2 TRAFFIC NOISE MONITORING RESULTS - MARCH 2007 Overview of Methodology A noise monitoring programme was commenced in March 2007 to quantify ambient noise levels (ie all noise sources) and to estimate traffic noise only (ie all vehicles). Three unattended noise loggers were positioned at representative residential localities adjacent to the Metropolitan Colliery off-site haulage routes commencing Wednesday 21 March 2007 for a period of 8 days. In order to supplement the unattended logger measurements and to assist in identifying the character and duration of the noise sources, operator-attended daytime, evening and night-time surveys were also conducted at all three logging locations. The background noise monitoring programme was implemented in accordance with AS 1055-1997 “Acoustics-Description and Measurement of Environmental Noise” and the NSW Environmental Criteria for Road Traffic Noise (ECRTN 1999). 3.2 Instrumentation and Measurement Parameters Unattended Monitoring and Operator-Attended Surveys All acoustic instrumentation employed throughout the noise monitoring programme has been designed to comply with the requirements of AS 1259.2-1990, “Sound Level Meters” and carries current National Association of Testing Authorities (NATA) or manufacturer calibration certificates. A description of instrumentation, designated type and serial numbers is shown in Table 1. Table 1 Acoustic and Meteorological Instrumentation Schedule ID Location Noise Logger Off-set Distance Serial Number L171 171 Lawrence Hargrave Drive, Helensburgh Near front boundary South 12 m 16-004-033 P170 170 Parkes Street, Helensburgh Near front boundary North 15 m 16-004-034 P83 83 Parkes Street, Helensburgh Adjacent front facade South 13 m 16-004-038 All instrumentation was programmed to record continuously the noise exceedance levels in 15 minute intervals including the LAmax, LA1, LA10, LA50, LA90, LA99, LAmin and the LAeq. Instrument calibration was conducted before and after each measurement survey, with the variation in calibrated levels not exceeding ±0.5 dBA. Weather Station and Traffic Counters Local meteorological data was obtained from a portable Automatic Weather Station located at the Mine Managers Residence at the eastern end of the Colliery site. The AWS recorded wind speed and direction, air temperature, relative humidity and rainfall in 15 minute intervals. 3.3 Unattended Background Noise Monitoring Results The unattended ambient noise logger data from each monitoring location, together with the on-site weather conditions were analysed on a daily basis. The statistical noise exceedance levels (LAN) are the levels exceeded for N% of the interval period. The LA90 represents the level exceeded for 90% of the interval period and is referred to as the average minimum or background noise level. The LA10 is the level exceeded for 10% of the time and is usually referred to as the average maximum noise level. The LAeq is the equivalent continuous sound pressure level and represents the steady sound level which is equal in energy to the fluctuating level over the interval period. Heggies Pty Ltd (10-5055R1 Appendices A to K)
<strong>Appendix</strong> G1 Report 10-5055-R1 Page 2 of 2 TRAFFIC NOISE MONITORING RESULTS - MARCH 2007 Prior to further analysis, the ambient noise data from each location which correlated with periods of unstable weather (eg rainfall greater than 0.5 mm or wind speed greater than 5 m/s) were discarded. The acceptable ambient noise data was then processed in accordance with the ECRTN to derive the Monday to Sunday ambient noise levels presented in Table 2. Table 2 Unattended Noise Logger Results March 2007 (dBA re 20 μPa) ID Location Offset Distance to Road L171 171 Lawrence Hargrave Dr Daytime LAeq(15hour) Night LAeq(9hour) Night-time Peak LAeq(1hour) Morning Peak LAeq(1hour) 12 m 67 60 64 68 68 P170 170 Parkes St 15 m 61 56 61 63 62 P83 83 Parkes St 13 m 63 55 62 65 63 Note 1: Daytime/evening 0700 hours to 1200 hours, Night-time 2200 hours to 0700 hours 3.4 Operator-Attended Traffic Noise Survey Results Afternoon Peak LAeq(1hour) Operator-attended noise surveys of 15 minutes duration were conducted with a precision integrating sound level meter in order to qualify the results obtained with the unattended noise loggers. During the attended noise surveys, the operator identified the character and duration of acoustically significant ambient noise sources. Wherever applicable, the operator described local traffic conditions and made a qualitative assessment of the prevailing weather conditions. The daytime operator-attended noise survey results are presented below: P83 - 83 Parkes Street, Helensburgh Date/Start Time Weather Daytime 21/3/07 1415 hrs Limit 50 km/hr Distance: 13 m South side Primary Noise Descriptor (dBA re 20 uPa) Leq LMax LMin Sel Ambient 67 86 43 97 Traffic 67 Typical maximum Levels LAmax - dBA Westbound: 35 cars, 1 truck Eastbound: 45 cars, 1 truck Coal truck 81 dBA P170 - 170 Parkes Street, Helensburgh Date/Start Time Weather Daytime 21/3/07 1345 hrs Limit 50 km/hr Distance: 15 m North side Primary Noise Descriptor (dBA re 20 uPa) Leq LMax LMin Sel Ambient 62 82 43 91 Traffic 62 Typical maximum Levels LAmax - dBA Westbound: 26 cars, 6 trucks Eastbound: 50 cars, 0 truck Coal truck 82 dBA L171 - 171 Lawrence Hargrave Drive, Helensburgh Date/Start Time Weather Daytime 21/3/07 1315 hrs Limit 80 km/hr Distance: 12 m South side Primary Noise Descriptor (dBA re 20 uPa) Leq LMax LMin Sel Ambient 67 86 43 97 Traffic 67 Typical maximum Levels LAmax - dBA Southbound: 28 cars, 4 trucks Motorbikes 2 Northbound: 29 cars, 6 trucks Motorbikes 0 Heggies Pty Ltd (10-5055R1 Appendices A to K)
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APPENDIX J METROPOLITAN COAL PROJEC
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Metropolitan Coal Project Noise Imp
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TABLE OF CONTENTS 11 OFF-SITE TRANS
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1 INTRODUCTION 1.1 Assessment Requi
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• HCPL to implement a continuous
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Table 2 Current and Proposed Hours
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Table 3 Nearest Potentially Affecte
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Table 5 Atmospheric Stability Frequ
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Table 8 Unattended Background Noise
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4.4 Ambient Traffic Noise Monitorin
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Ideally, the intrusive noise emissi
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5.4 Noise Impact Assessment Methodo
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Table 16 Fixed Plant Noise Audit -
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6.5 Project Noise Model Scenarios T
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The PRP 12 Study concluded that whi
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7.6 Continuous Noise Improvement Pr
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Existing Metropolitan Colliery Nois
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Page 45 and 46: Table 27 Predicted Distance Require
Page 47 and 48: Table 31 Peak Hourly Existing and P
Page 49 and 50: Table 34 Midweek Existing and Cumul
Page 51 and 52: Table 38 Predicted Train Generated
Page 53 and 54: • Negligible noise level increase
Page 55 and 56: HCPL would implement a range of noi
Page 57 and 58: Similarly, ground vibration levels
Page 59: Appendix A1 Report 10-5055-R1 Page
Page 62 and 63: Initial Development Schedule Projec
Page 64 and 65: LARGE COAL CIRCUIT ROM Bin Dump Hop
Page 66 and 67: Zoning LEGEND Coal Lease Boundary M
Page 68 and 69: Appendix E1 Report 10-5055-R1 Page
Page 70 and 71: Appendix E1 Report 10-5055-R1 Page
Page 72 and 73: Appendix F1 Report 10-5055-R1 Page
Page 98 and 99: Appendix G2 Report 10-5055-R1 Page
Page 110 and 111: Appendix H Report 10-5055-R1 Page 1
Page 112 and 113: 6 217 000 N 35 314 000 E 315 000 E
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Appendix J - Peabody Energy

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