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INCeoREPORT OF LA BOSTORY ANALYSIS <br /> � oaPORAT � o <br /> THE ASSURANCE OF SOALITY <br /> Jacqueline Doub QUALITY CONTROL DATA June 25, 1992 <br /> Page 24 PACE Project Number 420611511 <br /> Client Reference Exxon 7-0137 (CM) <br />' TPH GASOLINE/BTEX <br /> Batch 70 13270 <br /> Samples 70 0162327, 70 0162378, 70 0162467, 70 0162475 <br /> METHOD BLANK <br /> — Method <br /> Parameter Units MDL Blank <br /> TOTAL FUEL HYDROCARBONS, (LIGHT) - <br /> Purgeable Fuels, as Gasoline (EPA 8015) ug/kg wet 200 NO <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020) - <br /> Benzene ug/kg wet 1 0 NO <br /> Toluene ug/kg wet 1 0 ND <br />' Ethylbenzene ug/kg wet 1 0 NO <br /> Xylenes , Total ug/kg wet 1 0 NO <br /> ABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE <br /> Reference Dupl <br />' arameter Units MDL Value Recv Recv RPD <br /> Purgeable Fuels, as Gasoline (EPA 8015) ug/kg wet 200 353 1130% 108% aI <br /> Benzene ug/kg wet 1 0 40 0 107% 109% l; <br />' Toluene ug/kg wet 1 0 40 0 104% 104% 0/ <br /> Ethylbenzene ug/kg wet 1 0 40 0 102% 103% 0/ <br /> Xylenes, Total ug/kg wet 1 0 80 0 105% 106% 01 <br />' MDL Method Detection Limit <br /> RPD Relative Percent Difference <br /> 1 <br /> 4 <br />' 11 Digital Drive Offices Serving Mmneapoks Minnesota Charlotte North Carolina An Equal opportunity Employer <br /> Novato CA 94949 Tampa Florida Ashevitle North Carolina <br /> TEL 4158836100 Iowa City Iowa New York New York <br /> FAX 415 8113 1111 San Francisco California Pittsburgh,Pennsylvania <br /> Kansas City Missonn Demrer Colorado <br /> Los Angeles California <br />