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Wambo Coal AEMR 2010-2011 - Peabody Energy

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3.2.2 <strong>Wambo</strong> <strong>Coal</strong> Rail Spur NoiseNoise levels generated by activity associated with the <strong>Wambo</strong> <strong>Coal</strong> Rail Spur are shown inTable 3.7 and Table 3.8, where comparison of measured L Aeq(15 minutes) and L A1(1 minute) levelsfor WCRS is made with relevant noise goals.Table 3.7 L Aeq(15 minute) dB GENERATED BY WCRS AGAINST NOISE CRITERIA - QUARTER 4 <strong>2010</strong>LocationDate / StartTimeWindSpeed(m/s)VTG 7( 0 C/100m)CriterionL Aeq(15min) dB1WinterCriterionL Aeq(15min) dB1Not winterCriterionApplies? 3<strong>Wambo</strong>L Aeq(15min) dB4,5Exceedance6,8N24 06/12/10 23:13 1.6 0.5 41 35 Y IA NilN01 06/12/10 22:22 1.9 0.5 41 41 Y IA NILN01 29/12/10 13:18 0.6 -1.9 35 35 Y IA NilN24 29/12/10 12:28 0.9 -1.9 35 35 Y IA NilNotes: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 aboveground 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 andso criterion is not applicable;7. Vertical temperature gradient (VTG) calculated using sigma theta values according to INP procedures; and8. Bold and red text indicate exceedance of relevant criterion.11263_R01.docPage 15

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