Wambo Coal AEMR 2010-2011 - Peabody Energy

3.2 Attended Noise Monitoring – Quarter 4, 20103.2.1 Wambo Coal Mine NoiseNoise levels generated by activity at Wambo are shown in Table 3.5 and Table 3.6, wherecomparison of measured L Aeq(15 minutes) and L A1(1 minute) levels for WCM is made withrelevant noise goals.Table 3.5 L Aeq(15 minute) dB GENERATED BY WCM AGAINST NOISE CRITERIA - QUARTER 4 2010LocationDate / StartTimeWindSpeed(m/s)VTG 7( 0 C/100m)CriterionL Aeq(15min) dB1WinterCriterionL Aeq(15min) dB1Not winterCriterionApplies? 3WamboL Aeq(15min) dB4,5Exceedance6,8N01 2 06/12/10 23:13 1.6 0.5 41 35 Y 37 2N03 2 07/12/10 00:41 1.4 3.0 59 57 N IA NAN16 06/12/10 23:49 1.7 0.5 40 40 Y IA NilN23 06/12/10 23:21 1.6 0.5 38 38 Y IA NilN24 06/12/10 22:22 1.9 0.5 41 41 Y IA NilN01 2 29/12/10 13:18 0.6 -1.9 35 35 Y IA NilN03 2 23/12/10 11:17 1.0 -1.8 54 54 Y NM NilN16 23/12/10 10:04 0.9 -1.8 35 35 Y IA NilN23 23/12/10 09:31 0.6 -1.0 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.3. Estimated or measured L Aeq dB attributed to WCM;4. NM denotes WCM audible but not measurable, IA denotes inaudible;5. NA in exceedance column means atmospheric conditions outside conditions specified in development consentand so criterion is not applicable;6. Vertical temperature gradient (VTG) calculated using sigma theta values according to INP procedures; and7. Bold and red text indicates exceedance of relevant criterion.11263_R01.docPage 13