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Forward Landfill LFG Acoustical Analysis Page 14 <br /> May 18, 2011 <br /> 100712 009 <br /> dB 07/12/2010 09:46:52 AM-09:48:49 AM <br /> 90 <br /> B0 <br /> 70- <br /> 60- <br /> 50- <br /> 40- <br /> 30 <br /> 06050 4030 , _- <br /> 20 <br /> 12.50 31.50 63 125 250 500 1000 2000 4000 8000 16000 A C Hz <br /> LZeq LZF10 LZF50 -LZF90 <br /> Cursor.(A) Leq=73.4 dB LF10=74.2 dB LF50=73.3 dB LF90=72.6 dB <br /> 100712 009 <br /> Based on LAF,10ms Class width:0.2 dB 07/12/2010 09:46:52 AM-09:48:49 AM <br /> 100 L1 = 75.0 d <br /> L5 = 74.4 d <br /> L10 = 74.2 d <br /> 90 L50 = 73.3 d <br /> L90 = 72.6 d <br /> L9 = 72.4 d <br /> 80 L999 = 72.1 d <br /> 70- <br /> 60- <br /> 50- <br /> 40- <br /> 30- <br /> 0 604D 30 - - -- --- - - _ <br /> 20- <br /> 10 <br /> 0 <br /> 72 72.5 73 73.5 74 74.5 75 75.5 76 76.5 77 77.5 78 dB <br /> Level Cumulative <br /> Cursor:[73.2;73.4[dB Level: 13.3% Cumulative:56.1% <br /> Figure 9. Keller Canyon 80 ft from Exhaust Canopy <br />