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Superior Rrecision Ana/.y tics/i /nc_ <br /> A member of ESSCON Environmental Support Service Consortium <br /> Gasoline Range Petroleum Hydrocarbons and BTXE <br /> by EPA SW-846 5030/8015M/8020 <br /> Gasoline Range quantitated as all compounds from C6-C10 <br /> Quality Assurance and Control Data <br /> Laboratory Number: 20119 <br /> ,Compound Sample SPK Level SPK Result Recovery Limits RPD <br /> cont. % % <br /> For Water Matrix (ug/L) <br /> BI151.05 02 / 03 - Sample Spiked: 20116 - 01 <br /> Gasoline_Range ND 320 395/396 123/124 65-135 1 <br /> I <br /> Benzene ND 20 19.55/20.08 98/100 65-135 2 <br /> Toluene ND 20 20.05/20.26 100/101 65-135 1 <br /> Ethyl Benzene ND 20 20.29/20.48 101/102 65-135 1 <br /> 'Total Xylenes ND 60 60.44/60.56 101/101 65-135 0 <br /> >> Surrogate Recoveries (%) << <br /> Trifluorotoluene (SS) 89/90 50-150 <br /> finitions: <br /> Not Detected <br /> RL = Reporting Limit <br /> Not Analysed <br /> = Relative Percent Difference <br /> D e <br /> ug/L = parts per billion (ppb) ug/kg = parts per billion (ppb) <br /> /L = parts per million (ppm) mg/kg = parts per million (ppm) <br /> Page 5 of 5 <br /> Certified Laboratories <br /> 825 Arnold Dr Suite 1 14 1 555 Burke St Unit 1 309 S Cloverdale St Suite B-24 <br /> Martinez California 94553 San Francisco California 941 24 Seattle Washington 98108 <br /> (5 10) 229-1512 / fax )510) 229-1526 (4 1 5) 647-2081 / fax (4 15) 821-7123 (206) 76�-2992 / fax (206) 763-8429 <br />