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COOPER ENERGY SERVICES <br /> COOPER <br /> srREs AJAX COOPER-BESSEMER PENN PUMP SUPERIOR <br /> February 29, 1984 <br /> Pacific Lighting Energy Systems <br /> 6055 East Washington Blvd. <br /> Suite 830 <br /> Commerce, CA 90040 <br /> ATTENTION: Mr. Jim Kennelly <br /> Reference: Landfill Gas Applications <br /> Dear Sir: <br /> The following will confirm our telecon of February 29, 1984 : <br /> ENGINE MODEL BHP * NOISE LEVEL (dBA) ** <br /> 6G-825 492 93.6 <br /> 8G-825 656 93.8 <br /> 12G-825 984 94.5 <br /> .16G-825 1312 94.2 <br /> * Based on fuel with a lower heating value of 450 BTU/FT2. <br /> ** Estimated A - weighted sound pressure level at 10 feet <br /> from surface of engine under free-field relative to. <br /> 2 x 10 5 N/M2. <br /> Octive-band center frequency, (HZ) for Superior Model 8G-825. <br /> 31.5 63 125 250 500 lK 2K 4K 8K 16K <br /> 80 .3 80. 8 83. 8 89 .1 90.5 87.5 86.6 85.6 82. 0 68.1 <br /> The exhaust emissions shown on Figure 4, dated 5/20/82 by our <br /> Bruce Chrisman, is based on tests performed in our Springfield, <br /> Ohio facility. <br /> Should you have any questions on the above, please advise. <br /> ILS ' <br /> LEONARD JENS N <br /> LFJ:dd <br /> P.O. Box 995 <br /> 7152 Patterson Drive <br /> Garden Grove,California 92642 <br /> 714/891-3491 or 213/431-3513 <br /> Telex: 18-588 <br /> C/9 <br />