Wambo Coal AEMR 2010-2011 - Peabody Energy

Table 3.14 L A1(1 minute) dB GENERATED BY WCM AGAINST NOISE CRITERIA - QUARTER 2 2011LocationDate / StartTimeWindSpeed(m/s)VTG 7( 0 C/100m)CriterionL A1(1 min)dB 1CriterionApplies? 3WamboL A1(1 min)dB 4,5Exceedance 6,8N01 2,10 23/06/11 00:12 2.6 -1.0 NA Y 32 NilN03 2 23/06/11 02:06 3.1 -1.0 NA N 50 NAN16 23/06/11 00:42 2.6 -1.0 50 Y IA NilN23 22/06/11 23:35 3.3 -1.0 50 N 33 NAN24 10 22/06/11 22:38 3.9 -1.0 50 N NM NAN01 2,10 02/08/11 00:37 0.0 4.1 NA N 39 NAN24 10 01/08/11 23:43 0.0 4.1 NA N IA NANotes:1. Development consent criterion;2. Monitoring location is within Zone of Affectation, no EIS L A1,1min levels available;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 A1,1min 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, or, there is no applicable criterion;7. Vertical temperature gradient (VTG) calculated using sigma theta values according to INP procedures;9. Bold and red text indicates an exceedance of relevant criterion; and10. During Quarter 2 2011, night monitoring for WCM was undertaken twice.11263_R01.docPage 22