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J . <br /> Sherwood <br /> Labs8071 NORTH LANDER AVENUE <br /> C O R P O A A T O N P.O. BOX 937 <br /> HILMAR,CALIFORNIA 95324 <br /> 04/20/2000 QUALITY CONTROL REPORT DHS Certiflcation #1400 c(,� <br /> Total Petroleum Hydrocarbon(TPH)Analysis Nancy Biedenweg, Lab Director <br /> Client: DEL-TECH Date Received: 04/10/2000 <br /> 10624 OLIVE AVE Date Started: : 04/10/2000 <br /> OAKDALE, CA 95361 Date Complete: 04111/2000 <br /> ATTN: DON LIGHT - <br /> Lab Report#: H0041001 Lab Sample#s: PHOO40230-PH0040234 <br /> Linearity Check: <br /> BTEX Benzene 0.9986 TPH Gasoline 0.9983 <br /> Toluene 0.9994 TPH Diesel N/A <br /> Ethyl Benz 0.9995 Motor Oil NIA <br /> Xylenes 0.9981 TRPH (418.1) NIA <br /> MTBE 1.0000 <br /> Std % Repeatabliq MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX 95 98 98 97 94 <br /> TPH Gasoline 103 TPH Diesel NIA <br /> TRPH (418.1) NIA TPH Motor Oil NIA <br /> Matrix Spike Recoveries MS MSD RPD <br /> MTBE 112 105 6.5 <br /> BTEX Benzene 100 101 1.0 <br /> Toluene 102 98 4.0 <br /> Ethyl Benz 100 99 1.0 <br /> Xylenes 104 104 0.0 <br /> TPH Gasoline 1n7 109 1 9 <br /> TPH Diesel NIA NIA ERR <br /> Method Bla7n7k7777] MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX <2 ug/L <.3 <.3 <.3 <.3 <br /> TPH Gasoline <50 u -TPH Diesel/MO N/A TRPH(418.1) N/A <br /> Lab Control sample %. Recovery EPA Performance Acceptance Range <br /> BTEX Benzene 104 73.1 - 124 <br /> Toluene 95 73.6 - 120 <br /> Ethyl Benz 111 72.5 - 118 <br /> Xylenes 101 72.7 - 121 <br /> TPH Gasoline 112 82.4 - 117 <br /> TPH Diesel NIA NIA - NIA <br /> TRPH (418.1) NIA NIA <br /> OFFICE: (209)667-5258 FAX:(209)667-2581 <br />