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r <br /> pace. REPORT OF LABORATORY ANALYSIS <br /> THE ASSURANCE OF OUAUTY <br /> • Doug Oram QUALITY CONTROL DATA August 21 , 1992 <br /> iPage 14 PACE Project Number 420814512 <br /> Client Reference Exxon 7-3942 (EE) <br /> ITPH GASOLINE/BTEX <br /> Batch 70 14874 <br /> Samples 70 0195675 <br /> METHOD BLANK <br /> Method <br /> Parameter Units MDL Blank <br /> TOTAL FUEL HYDROCARBONS, (LIGHT) : - <br /> 1Purgeable Fuels, as Gasoline (EPA 8015) ug/L 50 ND <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020) - <br /> Benzene ug/L 0 5 ND <br /> Toluene ug/L 0.5 ND <br /> rEthylbenzene ug/L 0.5 ND <br /> Xylenes, Total ug/L 0.5 ND <br /> i <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE- <br /> Reference Dupl <br /> ameter Units MDL Value Recv Recv RPD <br /> wPTr'geable Fuels, as Gasoline (EPA 8015) ug/L 50 428 92% 94% 2% <br /> Benzene ug/L 0 5 40.0 98% 105% 6% <br /> lToluene ug/L 0 5 40.0 100% 106% 5% <br /> Ethylbenzene ug/L 0 5 40.0 101% 107% 5% <br /> Xylenes, Total ug/L 0 5 80.0 102% 108% 5% <br />'MDL Method Detection Limit <br /> rRPD Relative Percent Difference <br /> I I Digital Drive Offices Serving Minneapotis Minnesota Charlotte North Carolina An Equal Opportunity Employer <br /> Novato CA 94949 Tampa Florida Asheville North Carolina <br />' TEL 415 883 6190 Iowa City Iowa New York,New York <br /> FAX 415 883 2613 San Francisco California Pittsburgh Pennsylvania <br /> Kansas City Missouri Denver Colorado <br /> Los Angeles California <br />