Wambo Coal AEMR 2011-2012 - Peabody Energy

3.3 Attended Noise Monitoring – Quarter 1, 2012
3.3.1 Wambo Coal Mine Noise
Noise levels generated by activity at Wambo are shown in Table 3.9 and Table 3.10, where
comparison of measured L Aeq(15 minutes) and L A1(1 minute) levels for WCM is made with
relevant noise goals.
Table 3.9 L Aeq(15 minute) dB GENERATED BY WCM AGAINST NOISE CRITERIA - QUARTER 1, 2012
Location Date / Start Time Wind
Speed
(m/s)
VTG 7
( 0 C/100m)
Criterion
L Aeq(15
min) dB1
Winter
Criterion
L Aeq(15
min) dB1
Not winter
Criterion
Applies? 3
Wambo
L Aeq(15
min) dB
4,5
Exceedance
N01 2 03/04/12 12:14 1.6 -1.9 35 35 Y NM Nil
N03 2 21/03/12 10:10 0.3 -1.6 54 54 Y NM Nil
N16 21/03/12 09:40 0.0 -1.0 35 35 Y IA Nil
N23 21/03/12 07:50 0.2 -1.6 35 35 Y 26 Nil
N24 03/04/12 13:10 0.7 -1.9 35 35 Y IA Nil
N01 2 12/03/12 01:18 0.6 4.1 41 35 N NM NA
N03 2 29/02/12 00:11 0.0 4.1 59 57 N 32 NA
N16 29/02/12 00:40 0.0 4.1 40 40 N IA NA
N23 29/02/12 01:07 0.0 4.1 38 38 N IA NA
N24 12/03/12 02:09 0.9 4.1 41 41 N IA NA
6,8
Notes:
1. Development consent criterion;
2. Monitoring location is within Zone of Affectation. EIS or SEE modelled noise level presented;
3. The noise emission limits identified in the above table apply under meteorological conditions of:
- Wind speeds of up to 3 m/s at 10 metres above ground level; or
- Temperature inversion conditions of up to 3ºC/100m, and wind speeds of up to 2 m/s at 10 metres above
ground level.
4. Estimated or measured L Aeq dB attributed to WCM;
5. NM denotes WCM audible but not measurable, IA denotes inaudible;
6. NA in exceedance column means atmospheric conditions outside conditions specified in development consent and
so criterion is not applicable;
7. Vertical temperature gradient (VTG) calculated using sigma theta values according to INP procedures; and
8. Bold and red text indicate an exceedance of relevant criterion.
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