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V <br /> Sherwood <br /> Labs 8071 NORTH LANDER AVENUE <br /> C O R P O R A T I O N P.O.BOX 937 <br /> HILMAR,CALIFORNIA 95324 <br /> 46d 0711912000 QUALITY CONTROL REPORT DHS CertiffCation 01400 <br /> Total Petroleum Hydrocarbons(TPH)Analysis Nancy Biedenweg, Lab Director �Jlfd <br /> Client: GEOLOGICAL.TECHNICS, INC. Date Received: 0711412000 �� <br /> 2741 RIVER RD. Date Started: : 0711712000 <br /> MODESTO,CA 55351 Date Complete: 0711712000 <br /> ATTN: RAY KABLANOW <br /> Lab Repo 1k 1-10074432 Lab Sample#s: PH0070545-PH0070547 <br /> Linearity Check: <br /> BTEX Benzene 0.9984 TPH Gasoline 0.9971 <br /> Toluene 0.9978 TPH Diesel NIA <br /> Ethyl Benz 0.9997 Motor Oil NIA <br /> V <br /> Xylenes 0.9996 DIELECTRIC OIL NIA <br /> MTBE NIA <br /> V <br /> Std% Repeatability MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX NIA 97 101 92 102 <br /> •. TPH Gasoline 99 TPH Diesel NIA <br /> DIELECTRIC OIL NIA TPM Motor Oil NIA <br /> .r <br /> Matrix Spike Recoveries MS MSD RPD <br /> MTBE NIA NIA ERR <br /> BTEX Benzene 98 99 1.0 <br /> Toluene 100 103 3.0 <br /> Ethyl Benzen 97 95 2.1 <br /> ,r Xylenes 96 93 3.2 <br /> TPH Gasoline 107 107 0.0 <br /> TPH Diesel NIA NIA ERR <br /> Method Blank MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX NIA <.3 Wj <,3 <.3 ug/ <_3u�L <br /> TPH Gasoline <50 ugj TPH Diesel/mO NIA TRPH(418.1) NIA <br /> Lab Control Sam le%a ecove EPA Performance Acceptance Range <br /> BTEX Benzene 94 73.1 - 124 <br /> Toluene 88 73.6 - 120 <br /> Ethyl Benz 100 72.5 - 118 <br /> Xylenes 100 72.7 - 121 <br /> +r TPH Gasoline 102 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 />