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Sherwood � � <br /> JAN �, 1 198 <br /> Labs 8071 NORTH LANDER AVENUE <br /> C 0 R P 0 R A T 1 0 N P.O. SOX 937 <br /> HILMAR, CALIFORNIA 95324 <br /> 12/09/97 QUALITY CONTROL REPORT DHS Certification #1400 <br /> Volatile Analyses Nancy Biedenweg, Lab Director>;�L` i' <br /> Client: DEL-TECH Date Received: 12108197 d ff <br /> 10624 OLIVE AVE Date Started: : 12/08197 <br /> OAKDALE, CA 95361 Date Complete: 12/09197 <br /> ATTN: DON LIGHT <br /> Lab Report#: H7120804 Lab Sample T1s: PH7120547.555 <br /> Lineari Check: <br /> BTEX Benzene 0.9998 TPH Gasoline 0.9999 <br /> Toluene 0.9998 TPH Diesel NIA <br /> Ethyl Benzene 0.9999 Motor Oil NIA <br /> Xylenes 0.9999 TRPH (418.1) NIA <br /> MTBE NIA <br /> Std % Repeatabllitv MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX NIA 98 102 108 106 <br /> TPH Gasoline 90 TPH Diesel NIA <br /> TRPH (418.1) NIA TPH Motor Oil NIA <br /> Matrix Spike Recoveries MS MSD RPD <br /> MTBE NIA NIA ERR <br /> BTEX Benzene Spike Insignificant relative to_sample concentration ERR <br /> Toluene 103.0 99.0 _ 4.0 <br /> Ethyl Benzene 103.0 108.0 4.7 <br /> Xylenes Spike Insi niflcant relative to sample concentration ERR <br /> TPH Gasoline 97.0 84.0 ' 14.4 <br /> TPH Diesel NIA NIA <br /> TRPH 418.1 NIA <br /> Method Blank MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX NIA <.3 q 7 <.3 u <.3 u /� <.3 u <br /> TPH Gasoline <50- g/L...TPH Diesel/MO NIA TRPH(418.1) NIA <br /> Lab Control Sample% Recovery EPA Performance Acceptance Range <br /> BTEX Benzene 97 74.6 - 126.0 <br /> Toluene 95 70.7 - 118.0 <br /> Ethyl Benz 103 70.8 - 119.0 <br /> Xylenes 100 74.6 `* 116.0 <br /> TPH Gasoline 122 65,2 - 146.0 <br /> TPH Diesel NIA NIA - NIA <br /> TRPH (41$.1) NIA NIA <br /> OFFICE: (209) 667.5258 FAX: (209) 667-2581 BBS: (209) 667-4119 <br />