Wambo Coal AEMR 2010-2011 - Peabody Energy

3.3.2 Wambo Coal Rail Spur NoiseNoise levels generated by activity associated with the Wambo Coal Rail Spur are shown inTable 3.11 and Table 3.12, where comparison of measured L Aeq(15 minutes) and L A1(1 minute)levels for WCRS is made with relevant noise goals.Table 3.11 L Aeq(15 minute) dB GENERATED BY WCRS AGAINST NOISE CRITERIA - QUARTER 1 2011LocationDate / StartTimeWindSpeed(m/s)VTG 7( 0 C/100m)CriterionL Aeq(15min) dB1WinterCriterionL Aeq(15min) dB1Not winterCriterionApplies? 3WamboL Aeq(15min) dB4,5Exceedance6,8N01 19/03/11 00:40 0.8 -1.0 41 35 Yes IA NilN24 18/03/11 23:52 1.1 -1.0 41 41 Yes IA NilN01 22/03/11 12:41 3.1 -1.9 35 35 No IA NAN24 22/03/11 14:06 3.1 -1.9 35 35 NO 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 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 indicates an exceedance of relevant criterion.11263_R01.docPage 19