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pace& REPORT OF LABORATORY ANALYSIS <br />' THE ASSURANCE OF QUALITY <br /> &s. Tracy Faulkner QUALITY CONTROL DATA May 17, 1994 <br /> Page 20 PACE Project Number: 440510525 <br /> Client Reference: Exxon 7-3942 (EE) <br />' PURGEABLE FUELS AND AROMATICS <br /> Batch. 70 30371 <br /> Samples: 70 0318203, 70 0318220, 70 0318238, 70 0318246, 70 0318254 <br /> 70 0318262, 70 0318270, 70 0318289, 70 0318297, 70 0318319 <br /> METHOD BLANK: <br /> Method <br /> Parameter Units MDL Blank <br /> TOTAL FUEL HYDROCARBONS, (LIGHT) : -- <br />' Purgeable Fuels, as Gasoline (EPA 8O15M ug/L 50 ND <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020M) <br /> Benzene ug/L 0.5 NO <br /> Toluene ug/L 0.5 NO <br /> Ethylbenzene ug/L 0.5 ND <br />' Xylenes, Total ug/L 0.5 ND <br /> SPIKE AND SPIKE DUPLICATE. <br /> Spike <br /> 700318238 Spike Dupl <br /> Parameter Units MDL MW 12 Spike Recv Recv RPR <br />' end— ug 0T3 ND 100 97% 95% 2% <br /> Toluene ug/L 0.5 ND 100 100% 98% 2% <br /> Ethylbenzene ug/L 0.5 ND 100 101% 100% 1% <br /> Xylenes, Total ug/L 0.5 ND 300 99% 98% 1% <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE: <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv RPD <br /> enzene ug/L 0.55 100 10�2� 02% 0% <br />' Toluene ug/L 0.5 100 106% 105% 1% <br /> Ethylbenzene ug/L 0.5 100 112% 112% 0% <br /> Xylenes, Total ug/L 0.5 300 107% 108% 1% <br /> 1 I Digital Crlvs An Equal Opportunity Employer <br /> Novato CA 94949 <br />' TEL 4111111111 <br /> FAX 4158832673 <br />