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APPENDIX I: Noise Monitoring Data - Xstrata Coal Mangoola

APPENDIX I: Noise Monitoring Data - Xstrata Coal Mangoola

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5.1.5 A5, 12 April 2012, Daytime<br />

Environmental <strong>Noise</strong> Levels At A5 - Roxburgh Road<br />

12 Apr 2012, 0912 hours<br />

TotalLA1 TotalLA10 TotalLAeq TotalLA90 LA1 LA10 LAeq LA90<br />

70<br />

65<br />

dB(A)<br />

60<br />

55<br />

50<br />

45<br />

Birds<br />

Measured <strong>Noise</strong> Levels<br />

LA1: 55 dB<br />

LA10: 44 dB<br />

LAeq: 42 dB<br />

LA90: 31 dB<br />

XMC Only <strong>Noise</strong> Levels<br />

LAeq: Inaudible<br />

40<br />

35<br />

30<br />

Other mining<br />

continuum<br />

Birds<br />

All statistics are 15min<br />

unless noted otherwise<br />

in report<br />

25<br />

20<br />

12.5<br />

16<br />

20<br />

25<br />

31.5<br />

40<br />

50<br />

63<br />

80<br />

100<br />

125<br />

160<br />

200<br />

250<br />

315<br />

400<br />

500<br />

630<br />

800<br />

1000<br />

1250<br />

1600<br />

2000<br />

2500<br />

3150<br />

4000<br />

5000<br />

6300<br />

8000<br />

10000<br />

Total<br />

Frequency (Hz)<br />

Figure 7<br />

Environmental <strong>Noise</strong> Levels, A5 – 741 Roxburgh Road<br />

<strong>Mangoola</strong> <strong>Coal</strong> was inaudible.<br />

Birds generated the measured levels.<br />

A gas gun and other mining continuum were also noted.<br />

25<br />

12158_R01.doc<br />

Page 25

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