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APPENDIX I: Noise Monitoring Data - Xstrata Coal Mangoola

APPENDIX I: Noise Monitoring Data - Xstrata Coal Mangoola

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5.1.10 A5, 11 July 2012, Evening<br />

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

11 Jul 2012, 2007 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 />

40<br />

35<br />

30<br />

<strong>Mangoola</strong> <strong>Coal</strong> continuum and road traffic tyre noise<br />

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

LA1: 32 dB<br />

LA10: 30 dB<br />

LAeq: 28 dB<br />

LA90: 26 dB<br />

<strong>Mangoola</strong> <strong>Coal</strong> <strong>Noise</strong><br />

Levels<br />

LAeq: 28 dB<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 12<br />

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

Continuum was audible from <strong>Mangoola</strong> <strong>Coal</strong> throughout the measurement, which generated<br />

the <strong>Mangoola</strong> <strong>Coal</strong> only L Aeq of 28 dB.<br />

<strong>Mangoola</strong> <strong>Coal</strong> generated the measured levels.<br />

Road traffic tyre noise, other mining continuum, cows and birds were also noted.<br />

30<br />

12324_R01.doc<br />

Page 30

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