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ffz4 Sherwood <br /> Labs 8071 NORTH LANDER AVENUE <br /> C ORPO RATION PO BOX 937 <br /> HILMAR,CALIFORNIA 95324 <br /> 09115/89 QUALITY CONTROL REPORT DHS Certification X1400 <br /> Total Petroleum Hydrocarbons(TPH)Analysis Nancy Bledenweg, Lab Director ,�/� <br /> Client: FOOTHILL ENGINEERING Date Received 09/10199 /V rY' <br /> 12793 PADDY CREEK LR Date Started 09113199 <br /> LODI, CA 95240 Date Complete. 09/15/99 <br /> ATTN: ERVIN RIFENSURG <br /> Lab Report ilk M9091003 Lab Sample Ms. PH9090374-PH9090377 <br /> [Linearity Check' <br /> BTEX Benzene 09995 TPH Gasoline 1.0000 <br /> Toluene 09995 TPH Diesel 09998 <br /> Ethyl Benzene 0.9955 Motor Oil 09973 <br /> Xylenes 0.9970 TRPH (4181) NIA <br /> MTBE 09990 <br /> Std % Repeatability MTBE Benzene Toluene Eth Benz Xylenes <br /> STEX 113 108 106 110 113 <br /> TPH Gasoline 104 TPH Diesel 88 <br /> TRPH (418.7) NIA TPH Motor Oil 89 <br /> Matrix Spike Recoveries MS MSD RPD <br /> MTBE - 103 105 00 <br /> STEX Benzene 105` 103 19 <br /> Toluene 104 102 19 <br /> Ethyl Benzene 114 117 26 <br /> Xylenes 106 106 00 <br /> TPH Gasoline Be 94 so <br /> TPH Diesel 100 92 83 <br /> Method Blank MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX <50�K Q ug/Kg <3 ug/Kg 4 y&/KS y&/KS4 uwYR <br /> TPH Gasoline <1 TPH DlesellMO <5.n%LK& TRPH(418.1) N/A <br /> Lab Control Sample% Recove EPA Performance Acceptance Range <br /> STEX Benzene 103 73.1 - 124 <br /> Toluene 116 73.6 - 120 <br /> Ethyl Benz 106 725 - 118 <br /> Xylenes 111 72.7 - 121 <br /> TPH Gasoline 104 68.0 - 150 <br /> TPH Diesel 85 NSA - NIA <br /> TRPH (418.1) NIA NIA <br /> OFFICE (209) 667-5258 FAX (209)667-2581 <br />