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Sherwood <br /> Labs 8071 NORTH LANDER AVENUE <br /> c o R P 0 R A T 1 0 N P O BOX 937 <br /> HILMAR,CALIFORNIA 95324 <br /> 09115159 QUALITY CONTROL REPORT DHS Certification#1400 <br /> Total Petroleum Hydrocarbons(TPH)Analysis Nancy Biedenweg, Lab Director�6/ � <br /> CilenL FOOTHILL ENGINEERING Date Received: 09/09199 C41„(" <br /> 12793 PADDY CREEK LN Date Started , 09110199 <br /> LODI, CA 93240 Date Complete. 09113/99 <br /> ATTN• ERVIN RIFENSURG <br /> Lab Re rt# H9090904 Lab Sample iii PH9090318-PH9090327 <br /> [LinearityCheck. <br /> BTEX Benzene 09995 TPH Gasoline 10000 <br /> Toluene 09995 TPH Diesel 09998 <br /> Ethyl Benzene 09955 Motor Oil 09973 <br /> Xylenes 09970 TRPH (418 1) NIA <br /> MTBE 09998 <br /> Std% Rep±atabili MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX 108 104 107 105 109 <br /> TPH Gasoline 105 TPH Diesel 102 <br /> TRPH (418 1) NIA TPH Motor Oil 100 <br /> Matrix Spike Recoverles MS MSD RPD <br /> MTBE 103 105 00 <br /> BTEX Benzene 105 103 19 <br /> Toluene 104 102 1 9 <br /> Ethyl Benzene 114 117 2 6 <br /> Xylenes 106 106 0 0 <br /> TPH Gasoline 98 99 1 0 <br /> TPH Diesel 99 102 3 0 <br /> Method Blank MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX <500 ugrg <3 !WZS& <3 <3 u <3 ug/Kg <br /> TPH Gasoline <l MULKS TPH Diesel/MO <5 TRPH(418.1) NIA <br /> Lab Control Sample% Recove EPA Performance Acceptance Range <br /> BTEX Benzene 100 731 - 124 <br /> Toluene 114 736 - 120 <br /> Ethyl Benz 112 72.8 - lie <br /> Xylenes 103 72.7 - 121 <br /> TPH Gasoline 104 68.0 - 150 <br />. TPH Diesel 103 NIA - NIA <br /> TRPH (418 1) NIA NIA <br /> OFFICE (209)667-5258 FAX (209) 667-2581 <br />