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Sherwood <br /> Labs 8071 NORTH LANDER AVENUE <br /> P.O.BOX 937 <br /> { HILMAR,CALIFORNIA 95324 <br /> 0910812000 QUALITY CONTROL REPORT DHS Certification 91400 <br /> ��Total Petroleum Hydrocarbons(TPH)Analysis Nancy Biedenweg, Lab Director �0 <br /> Client: GEOLOGICAL TECHNICS, INC. Date Received: 0910112000 �� <br /> 2741 RIVER RD. Date Started: : 0910612000 <br /> MODESTO, CA 95351 Date Complete: 09108/2000 <br /> ATTN. RAY KABLANOW <br /> Lab Report It H0090109 Lab Sample#s: PH0090035-PHOO90043 <br /> Uneari 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 DIELECTRIC OIL NIA <br /> MTBE NIA <br /> Std% Repeatability MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX NIA 104 101 103 113 <br /> TPH Gasoline 100 TPH Diesel NIA <br /> DIELECTRIC OIL 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 95 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 u C.3 _<.3 ug/L <br /> TPH Gasoline <50 TPH Diesel/MO N/A. TRPH(418.1) N/A <br /> r=� <br /> Lab Control Sample% Recovery 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 97 82.4 - 117 <br /> TPH Diesel NIA 76.5 - 136.0 <br /> TRPH (418.1) NIA NIA <br /> OFFICE:(209)667-5258 FAX; (209)667-2581 <br /> i <br />