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Sherwood <br /> Labs 8071 NORTH LANDER AVENUE <br /> BOX 937 <br /> C 0 P P 0 A A T 1 0 N HILMAR.CALIFORNIA 95324 <br /> 08/02/97 QUALITY CONTROL REPORT DHS Certification #1400 <br /> Nancy Biadenweg, Lab Directory n✓�> <br /> Client: DEL-TECH Date Received: 05101197 <br /> 10624 OLIVE AVE Date Started: : 05101/97 <br /> OAKDALE, CA 95361 Date Complete: 05/08/97 <br /> ATTN: DON LIGHT <br /> Lab Report #; H705m 09 Lab Sample#6 PH70WO69-080 <br /> Fnearity Check: <br /> BTEC Benzene 0.9988 TPH Gasoline 0.9889 <br /> Toluene 0.9998 TPH Diesel 0.9998 <br /> Ethyl Benzene 0.9999 Motor Oil 0.9994 <br /> Xylenes _ 0.9999 TRPH (418-1) N/A <br /> MTBE N/A <br /> Fid % Repeatability MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX N/A _ 87 100 101 100 <br /> TPH Gasoline _ 104 TPN Diesel 92 <br /> TRPH (418.1) N/A- - __ TPH Motor Oil 95 <br /> Matrix Spike Recoveries MSD RPD <br /> MTBE N/A NIA ERR <br /> BTEX Benzene _ 99.0 98.0 Q0___. <br /> Toluene 102.0 101.0 _ 1.0 <br /> Ethyl Benzene 104.0 10204 1.9 <br /> Xylenes 1020 102.0 0.0 <br /> TPH Gasoline 87.0 83.0 4.7 <br /> TPH Diesel 91 Be _3.4 .-_. <br /> TRPH 418.1 N/A <br /> Method Biank MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEC N/A <3 ueKg <3 4K& <3 ug/Kg <3 ugKg <br /> TPH Gasoline <1 mg1K TPH Diesel/MO <5 m K TRPH(418.1) N/A <br /> Lab Control Sample% Recovery EPA Performance Acceptance Range <br /> T BTEX Benzene _ 89 ..._ 54.9 - 141 <br /> Toluene 96 68.7 - 127 <br /> Ethyl Benz _ 104 70.6 - 130 <br /> Xylenes _ 105 69.3 - 138 <br /> TPH Gasoline _ 110 65.2 - 146 <br /> TPH Diesel _ 74 34.6 - 117 <br /> TRPH (418.1) N/A WA <br /> OFFICE (209) 667-5258 . FAX: (209) 667.2581 . BBS: (209) 667-4119 <br /> -- - ---- -------------------------------------------------- <br />