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Sherwood <br /> Labs 8071 NORTH LANDER AVENUE <br /> C 0 R P 0 R A r 1 0 N I'0 BOX 937 <br /> HILMAR,CALIFORNIA 95324 <br /> 0710712000 QUALITY CONTROL REPORT DHS Certiflcation#1400 +(�J/N <br /> Total Petroleum Hydrocarbons(TPH)Analysis Nancy Biedenweg, Lab Director <br /> Client GEOLOGICAL TECHNICS, INC Date Received 0612912000 <br /> 2741 RIVER RD Date Started. 07/0512000 <br /> MODESTO, CA 95351 Date Complete. 07/0712000 <br /> ATTN RAY KABLANOW <br /> Lab Report* H0062923 Lab Sample#9 PH0061557-PH0061567 <br />' <br /> Linearity Check <br /> BTEX Benzene 0.9996 TRH Gasoline 0.9999 <br /> Toluene 0.9999 TPH Diesel NIA <br /> Ethyl Benz 09968 Motor Oil NIA <br /> Xylenes 09976 DIELECTRIC OIL NIA <br /> MTBE NIA <br /> Std %Repeatability MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX NIA 95 93 89 106 <br />' TPH Gasoline 97 TPH Diesel NIA <br /> DIELECTRIC OIL NIA TPH Motor Oil NIA <br /> Matrix Spike Recoveries MS MSD RPD <br /> MTBE NIA NIA ERR <br /> 1 BTEX Benzene 96 94 21 <br /> Toluene 95 95 0.0 <br /> Ethyl Benzen 99 99 00 <br /> Xylenes 107 107 00 <br /> TPH Gasoline 89 89 00 <br /> TPH Diesel NIA NIA ERR <br /> Method Blank MTBE Benzene Toluene Eth Benz xylenes <br />' BTEX NIA C3 < 3 <3 <3 ygj <br /> TPH Gasoline <50 TPH Diesel/MO NIA TRPH(4181) NIA <br />' Lab Control Sample%Recove EPA Performance Acceptance Range <br /> BTEX Benzene 104 731 - 124 <br /> Toluene 93 736 - 120 <br /> Ethyl Benz 91 725 118 <br /> Xylenes 105 727 - 121 <br /> TPH Gasoline 94 824 117 <br /> TPH Diesel NIA NIA NIA <br /> TRPH (418 1) NIA NIA <br /> r <br /> OFFICE (209)667-5258 FAX (209)667-2581 <br />