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t <br /> Sherwood <br /> 8071 NORTH LANDER AVENU,_-/ <br /> Labs PO. BOX 937 <br /> i C O R P O R A r 1 O N HILMAR,CALIFORNIA 95324 <br /> t <br /> P <br /> 0412012000 QUALITY CONTROL REPORT DHS Certlflcation 01400 <br /> Total Petroleum Hydrocarbon(TPH)Analysis Nancy Biedenweg, Lab Director <br /> Client: DEL-TECH Date Received: 0411012040 <br /> 10624 OLIVE AVE Date Started: : 0411012000 —� <br /> OAKDALE, CA 95361 Date Complete: 04111/2000 <br /> ATTN: DON LIGHT <br /> Lab Report#: HOW001 Lab Sample#s: PHOO40230-PHOO40234 r' <br /> Lineari Check: <br /> BTEX Benzene 0.9986 TPH Gasoline 0.9983 <br /> Toluene 0.9994 TPH Diesel NIA <br /> Ethyl Benz 0.9995 Motor Oil NIA <br /> _ Xylenes 0.9981 TRPH (418.1) NIA - <br /> MTBE 1.0000 <br /> Std `/, Repeatability MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX 95 98 98 97 94 <br /> TPH Gasoline 103 TPH Diesel NIA <br /> TRPH (418.1) NIA TPH Motor Oil NIA <br /> i <br /> Matrix SRike Recoveries MS MSD RPD <br /> i MTBE 112 105 6.5 <br /> i <br /> BTEX Benzene 100 101 1.0 <br /> i Toluene 102 98 4.0 <br /> Ethyl Benz 100 99 1.0 <br /> Xylenes 104 104 0.0 <br /> TPH Gasoline _ `107 =-g I a <br /> TPH Diesel NIA NIA ERR <br /> i Method Blank j MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX <2 u <3 <.3 <.3 yyj <3 <br /> TPH Gasoline <50 TPH Diesel/MO N/A TRPH(418-1) NIA <br /> I <br /> Lab Control Sample % Recove EPA Performance Acceptance Range <br /> BTEX Benzene 104 73.1 - 924 <br /> Toluene 95 73.6 - 120 <br /> Ethyl Benz 111 72.5 - 118 <br /> Xylenes 101 72.7 - 121 f <br /> TPH Gasoline 112 82.4 - 117 <br /> TAH Diesel NIA NIA - NIA <br /> TRPH (418.1) NIA NIA <br /> . OFFICE: (209) 667-5258 FAX: (209)667-2581 -s <br />