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Pa ce, <br /> , a c a e P n A n T E n REPORT OF LABORATORY ANALYSIS <br /> THE ASSURANCE OF RUAIItY <br /> Doug Oram QUALITY CONTROL DATA May 07, 1992 <br /> age 12 <br /> PACE Project Number. 420501512 <br /> Client Reference. Exxon 7-3942 <br />' TPH GASOLINE/BTEX <br /> Batch 70 12124 <br /> Samples. 70 0090660, 70 0090687 <br /> METHOD BLANK. <br /> Parameter Method <br /> TOTAL FUEL HYDROCARBONS, (LIGHT) Units MDL Blank <br />' Purgeable Fuels, as Gasoline (EPA 8015) ug/L 50 ND <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020) <br /> Benzene <br /> Toluene ug/L 0.5 ND <br /> ug/L 0 5 ND <br /> Ethyl benzene ug/L 0 5 ND <br /> Xylenes, Total ug/L 0.5 ND <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE. <br /> Wr�ameter Reference Dupl <br /> Units MDL Value Recv Recv RPD <br /> ea a Fuels, as Gasoline (EPA 8015) ug/L 5 <br /> Benzzene 355 105% 108% --2-% <br /> Toluene ug/L Q•5 40.0 106% 110% 3% <br /> Ethylbenzene ug/L 0 5 40.0 114% 111% 2% <br /> Xylenes, Total ug/L 0.5 40.0 114% 114% 0% <br /> u9/L 0.5 $0 0 11,3% 110% 2% <br /> MDL Method <br /> Detection Limit <br /> RPD Relative Percent Difference <br /> I 1 Digital Drive Offices Serving Minneapolis Minnesota <br /> Novato CA 94949 Gharfotte North Carolina An Equal Opportunity Employer <br /> TEL 415 883 61 all Tampa Florida Asheville North Carakna <br /> FAX 415 883 2673 Iowa City Iowa New York New York <br /> San Francisco California Pittsburgh Pennsylvania <br /> Kansas City Missouri Denver Colorado <br /> Ens Angeles California <br />