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Forward Landfill LFG Acoustical Analysis Page 15 <br /> May 18, 2011 <br /> 100712 012 <br /> dB 07/12/2010 09:56:15 AM-09:57:30 AM <br /> 90 <br /> 80 <br /> 70 <br /> 60- <br /> 50- <br /> 40- <br /> 30- - - --- <br /> 0 504030 --_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=67.8 dB LF10=68.6 dB LF50=67.7 dB LF90=66.8 dB <br /> 100712 012 <br /> % Based on LAF,10ms Classwidth:0.2 dB 07/12/2010 09:56:15 AM-09:57:30 AM <br /> 100 L1 = 70.2 d <br /> L5 = 68.9 d <br /> 90 L10 = 68.6 d <br /> L50 = 67.7 d <br /> L9 = 66.8 d <br /> L955 = 66.6 d13 <br /> 80 1-99 = 66.3 d <br /> 70- <br /> 60- <br /> 50- <br /> 40-- <br /> 30-- <br /> 20- <br /> to- <br /> 0 <br /> 05030 -20100 t <br /> 66 66.5 67 67.5 68 68.5 69 69.5 70 70.5 71 71.5 72 dB <br /> Level -Cumulative <br /> Cursor.[67.6;67.8[dB Level:9.8% Cumulative:53.1% <br /> Figure 10. Keller Canyon 65 ft from Office Wall <br />