Wambo Coal AEMR 2011-2012 - Peabody Energy

3.1.2 Wambo Coal Rail Spur Noise
Noise levels generated by activity associated with the Wambo Coal Rail Spur are shown in
Table 3.3 and Table 3.4, where comparison of measured L Aeq(15 minutes) and L A1(1 minute) levels
for WCRS is made with relevant noise goals.
Table 3.3 L Aeq(15 minute) dB GENERATED BY WCRS AGAINST NOISE CRITERIA - QUARTER 3, 2011
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
6,8
N01 27/09/11 00:10 0.0 3.0 41 35 N IA NA
N24 26/09/11 23:15 0.1 3.0 41 41 N IA NA
N01 04/10/11 14:00 1.8 -1.6 35 35 Y IA Nil
N24 04/10/11 12:48 3.0 -1.8 35 35 N IA NA
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 WCRS;
5. NM denotes WCRS 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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