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)l Sherwood <br /> 8071 NORTH LANDER AVENUE <br /> Labs p0. BOX 937 <br /> C O R P O R A T I O N <br /> HILMAR,CALIFORNIA 95324 <br /> 0910812000 QUALITY CONTROL REPORT DHS Certification#1404 <br /> Total Petroleum Hydrocarbons(TPH)Analysis Nancy Biedenweg, Lab Director ., <br /> Client: FOOTHILL ENGINEERING Date Received: 0813112000 <br /> 12793 PADDY CREEK LN Date Started: : 0910512000 <br /> LODI, CA 95240 Date Complete: 09/07/2000 <br /> ATTN: ERVIN RIFENBURG <br /> Lab Report*. H0090105 Lab Sample#s: PH0090017-PH0090025 <br /> Linear" Check: <br /> BTEX Benzene 0.9989 TPH Gasoline 0.9999 <br /> Toluene 0.9982 TPH Diesel NIA <br /> Ethyl Benz 0.9990 Motor Oil NIA <br /> Xylenes 0.9995 STODDARD SOLVENTS WA <br /> MTBE NIA <br /> Std%, Repeatability MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX WA 105 107 103 110 <br /> TPH Gasoline 94 TPH Diesel NIA <br /> STODDARD SOLVENTS NIA TPH Motor Oil NIA <br /> Matrix Spike Recoveries MS MSD RPD <br /> MTBE NIA NIA ERR <br /> BTEX Benzene 92 97 5.3 <br /> Toluene 85 85 0.0 <br /> Ethyl Benzen 84 94 11.2 <br /> Xylenes 85 88 3.5 <br /> TPH Gasoline 97 98 1.0 <br /> TPH Diesel NIA NIA ERR <br /> Method Blank MTBE Benzene Toluene Eth Benz Xylenes <br /> _ BTEX NIA <.3 <3 <.3 ugfL <.3 <br /> TPH Gasoline <50 TPH Dieselâ–ºMO NIA TRPH(418.1) N/A <br /> Lab Control Sample%Recoveg EPA Performance Acceptance Range <br /> BTEX Benzene 101 73.1 - 124 <br /> Toluene 90 73.6 - 120 <br /> Ethyl Benz 104 72.5 - 118 <br /> Xylenes 115 72.7 - 121 <br /> TPH Gasoline 94 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 />