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s I aI C o R P O R a T E 0 ® REPORT OF LABORATORY ANALYSIS <br /> 1 ter ASSURANCE OF QUAiIT7 <br /> 'w!'h <br /> Mr dames Jacobs QUALITY CONTROL DATA November 01 , 1991 <br /> Page 31 PACE Project Number 4110 <br /> Client Reference Exxon 7-3330 <br /> TPH GASOLINE/BTEX <br /> Batch 70 06815 <br /> Samples 70 0098882, 70 0098890, 70 0098912, 70 0098947, 70 0098955 <br /> 70 0098963 <br /> METHOD BLANK <br /> Method <br /> Parameter Units MDL Blank <br /> TolAE TtTL HYDROCARBONS, (LIGHT) - <br /> Purgeable Fuels, as Gasoline (EPA 8015) ug/kg wet 200 ND <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020) - <br /> Benzene ug/kg wet 1 0 ND <br /> Toluene ug/kg wet 1 0 ND <br /> Ethylbenzene ug/kg wet 1 0 ND <br /> Xylenes, Total ug/kg wet 1 0 NO <br /> - LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv <br /> Purgea6Te Fuels, as Gasoline (EPA 8015) ug/kgwet 200 428Owl% OM— <br /> Benzene ug/kg wet 1 0 40 0 98% 101% <br /> t Toluene ug/kg wet 1 0 40 0 105% 102% <br /> Ethylbenzene ug/kg wet 1 0 40 0 105% 100% <br /> Xylenes, Total ug/kg wet 1 0 120 108% 105% <br /> MDL Method Detection Limit <br /> NO Not detected at or above the MDL <br /> RPD Relative Percent Difference <br /> 11 09161 Drive Offices ServuV hlrrmeepohs Minnesota charlotte North Carolina An Equal Opportunity Employer <br /> Novato CA 94949 ramp& Florida AshevVe North Carolina <br /> TEL 415 88]6108 Iowa City Iowa Naw York.New York <br /> FAX 415 883267 3 <br /> 2613 San Francisco Cehforua Pittsbu* Pennsylvania <br /> Kansas City Missouri Oemer CAorado <br /> Los Angeles Cahl6rnra <br />