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Sherwood <br /> S Labs 8071 NORTH LANDER AVENUE <br /> C O R P O R A T 1 0 N P.O. BOX 937 <br /> HILMAR,CALIFORNIA 95324 <br /> Cart. #1400 <br /> Total Petroleum Hyd=oearbons(TPH) Analysis <br /> Client: FOOTHILL ENGINEERING Date Received: 03/12/01 <br /> 12793 PADDY CR= Date Started: 03/14/01 <br /> LODI, CA 95240 Date Complete: 03/15/01. <br /> ATTN: ERV RIFENBURG <br /> Lab Report #: H1031204 Lab Sample #:PH1030593-PH1030600 <br /> Linearity Check: <br /> BTEX Benzene 0.9992 TPH Gasoline 0.9992 <br /> Toluene 0.9992 TPH Diesel N/A <br /> Ethyl Benz 0.9994 Motor Oil N/A <br /> Xylenes 0.9997 TRPH (418.1.) N/A <br /> MTBE N/A <br /> std Repeatability MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX N/A 100 103 93 100 <br /> TPH Gasoline 99 TPH Diesel N/A <br /> TRPH (418.1) N/A Motor Oil N/A <br /> Matrix spike Recoveries MS MSD RPD <br /> MTBE N/A N/A N/A <br /> BTEX Benzene 98 99 1 <br /> Toluene 98 98 0 <br /> Ethyl Benz 100 99 1 <br /> Xylenes 98 98 0 <br /> TPH Gasoline 109 108 1 <br /> TPH Diesel N/A N/A N/A <br /> 3[ethod Blank MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX N/A <.3 ug/L <.3 ug/L <.3 ug/L <.3 ug/L <br /> TPH Gasoline <50 ug/L Diesel/MO N/A TRPH(418.1) N/A <br /> Lab Control sample Sk Recovery71 EPA Performance Acceptance Range <br /> BTEX Benzene 118 73.1 - 124 <br /> Toluene 105 73.6 - 120 <br /> Ethyl Benz 119 72.5 - 118 <br /> Xylenes 121 72.7 - 121 <br /> TPH Gasoline 92 82.4 - 117 <br /> TPH Diesel N/A N/A -- N/A <br /> ;,TRPH (418.1) N/A N/A <br /> '( <br /> Nancy Biedenweg, Lab Di at� <br /> OFFICE: (209)667-5258 FAX: (209)667-2581 <br />