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c a e P a e a T e a pace,,, REPORT OF LABORATORY ANALYSIS <br /> THE ASSURANCE OF QUALITY <br /> Mr. Jim Brownell QUALITY CONTROL DATA September 17, 1993 <br /> Page 9 PACE Project Number: 43090950r <br /> Client Reference: Exxon 7-3330 (EE) <br /> PURGEABLE FUELS AND AROMATICS <br /> Batch: 70 24631 <br /> Samples: 70 0148987 <br /> METHOD BLANK: <br /> Method <br /> Parameter Units MDL Blank <br /> 0 AL U L HYDROCARBONS, (LIGHT) : - <br /> Purgeable Fuels, as Gasoline (EPA 8015M ug/L 50 ND <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020M) - <br /> Benzene u9/L 0.5 ND <br /> Toluene ug/L 0.5 ND <br /> Ethylbenzene u9/L 0.5 ND <br /> Xylenes, Total ug/L 0.5 ND <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE: <br /> Reference Dupl <br /> • Parameter Units MDL Value Recv Recv RPD <br /> Purgea a Fuels, as Gasoline (EPA 8015M ug/L 50 1000 9O% 937. 1 <br /> Benzene ug/L 0.5 100 81% 84% 3` <br /> Toluene ug/L 0.5 100 80% 83% 3` <br /> Ethylbenzene ug/L 0.5 100 89% 92% 3: <br /> Xylenes, Total ug/L 0.5 300 98% 101% 3'- <br /> (0 <br /> 11 Oi ital Drive An Equal Opportunity Employer <br /> Novato, CA 94949 <br /> TEL 415.883.6108 <br /> FAX:415.883.2673 <br />