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Sherwood <br /> Labs 8071 NORTH LANDER AVENUE <br /> C O R P O R A r 1 0 N P.O. BOX 937 <br /> HILMAR, CALIFORNIA 95324 <br /> 04/23198 QUALITY CONTROL REPORT DHS Certification 01400 <br /> Volatile Analyses Nancy Biedenweg, Lab Director <br /> Client DEL-TECH Date Received: 04120198 <br /> 10624 OLIVE AVE Date Started: 04120198 <br /> OAKDALE, CA 93361 Date Complete: 04/22/98 <br /> ATTN: DON LIGHT <br /> Lab Report 1k H8042012 Lab Sample#s: 1-180409994016 <br /> LinearityCheck: <br /> BTEX Benzene 0.9998 TPH Gasoline 0.9998 <br /> Toluene 0.9998 TPH Diesel NIA <br /> Ethyl Benzene 0.9992 Motor Oil NIA <br /> Xylenes 0.9996 TRPH (418.1) NIA <br /> MTBE NIA <br /> Std%Repeatabili MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX NIA 99 99 93 102 <br /> TPH Gasoline 97 TPH Diesel NIA <br /> TRPH (418.1) NIA TPH Motor Oil NIA <br /> 'i <br /> Matrix Spike Recoveries MS MSD RPD <br /> MTBE NIA NIA ERR <br /> BTEX Benzene 98.0 96.0 2.1 <br /> Toluene 94.0 98.0 4.2 <br /> Ethyl Benzene 96 102 6.1 <br /> Xylenes 91 99 8.4 <br /> TPH Gasoline 96 87 9.8 <br /> TPH Diesel NIA NIA ERR <br /> NIA <br /> Method Blank IIATBE Benzene Toluene Eth Benz Xylenes <br /> BTEX NIA <.3 u <.3 <.3 ME&_ <.3 <br /> TPH Gasoline <50 TPM Diesel/MO NIA TRPH(418.1) NIA <br /> Lab Control Sample%Recovery EPA Performance Acceptance Range <br /> BTEX Benzene 93 74.6 - 126.0 <br /> Toluene 96 70.7 - 118.0 <br /> Ethyl Benz 91 70.8 - 119.0 <br /> Xylenes 98 74.8 - 116.0 <br /> TPH Gasoline 85 67.9. - 150.0 <br /> TPH Diesel NIA NIA - NIA <br /> TRPH (418.1) NIA NIA <br /> OFFICE, (209) 667-5258 FAX: (209) 667-2581 • BBS; (209) 667-4119 <br />