Wambo Coal AEMR 2010-2011 - Peabody Energy

3.4 Attended Noise Monitoring – Quarter 2, 20113.4.1 Wambo Coal Mine NoiseNoise levels generated by activity at Wambo are shown in Table 3.13 and Table 3.14, wherecomparison of measured L Aeq(15 minutes) and L A1(1 minute) levels for WCM is made withrelevant noise goals.Table 3.13 L Aeq(15 minute) dB GENERATED BY WCM AGAINST NOISE CRITERIA - QUARTER 2 2011LocationDate / StartTimeWindSpeed(m/s)VTG 7( 0 C/100m)CriterionL Aeq(15min) dB1WinterCriterionL Aeq(15min) dB1Not winterCriterionApplies? 3WamboL Aeq(15min) dB4,5Exceedance6,8N01 2 28/04/11 14:53 3.1 -1.8 35 35 N NM NAN03 2 28/04/11 13:51 2.8 -1.8 54 54 Y 34 NilN16 28/04/11 13:03 3.1 -1.8 35 35 N 29 NAN23 28/04/11 12:33 3.0 -1.6 35 35 N 28 NAN24 28/04/11 16:04 1.7 -1.0 35 35 Y NM NilN01 2, 9 23/06/11 00:12 2.6 -1.0 41 35 Y 28 NilN03 2 23/06/11 02:06 3.1 -1.0 59 57 N 40 NAN16 23/06/11 00:42 2.6 -1.0 40 40 Y IA NilN23 22/06/11 23:35 3.3 -1.0 38 38 N 27 NAN24 9 22/06/11 22:38 3.9 -1.0 41 41 N NM NAN01 2,9 02/08/11 00:37 0.0 4.1 41 35 N 34 NAN24 9 01/08/11 23:43 0.0 4.1 59 57 N IA NANotes: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 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 andso criterion is not applicable;7. Vertical temperature gradient (VTG) calculated using sigma theta values according to INP procedures;8. Bold and red text indicates an exceedance of relevant criterion; and9. During Quarter 2 2011, night monitoring for WCM was undertaken twice.11263_R01.docPage 21