Wambo Coal AEMR 2010-2011 - Peabody Energy

3.1.2 Wambo Coal Rail Spur NoiseNoise levels generated by activity associated with the Wambo Coal Rail Spur are shown inTable 3.3 and Table 3.4, where comparison of measured L Aeq(15 minutes) and L A1(1 minute) levelsfor WCRS is made with relevant noise goals.Table 3.3 L Aeq(15 minute) dB GENERATED BY WCRS AGAINST NOISE CRITERIA - QUARTER 3 2010LocationDate / StartTimeWindSpeed(m/s)VTG 7( 0 C/100m)CriterionL Aeq(15min) dB1WinterCriterionL Aeq(15min) dB1NotwinterCriterionApplies? 3WamboL Aeq(15min) dB4,5Exceedance6N01 20/09/10 12:41 2.5 -1.9 35 35 Y IA NilN22 2 20/09/10 12:02 2.7 -1.8 NA NA N IA NilN24 20/09/10 11:05 2.5 -1.8 35 35 Y IA NilN01 15/09/10 22:43 2.3 0.5 41 35 N IA NAN22 2 15/09/10 22:08 2.7 -1.0 NA NA N 42 NilN24 15/09/10 22:43 2.3 0.5 41 41 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 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 consentand so criterion is not applicable;.7. Vertical temperature gradient (VTG) calculated using sigma theta values according to INP procedures; and8. Bold and red text indicates an exceedance of relevant criterion.11263_R01.docPage 11