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� s <br /> c rperior Precisiorn Analytical, /17C <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 80528 <br /> ,Compound Sample SPK Level SPK Result Recovery Limits RPD <br /> conc g <br /> For Water Matrix (ug/L) <br /> BB061 04 02 / 03 - Sample Spiked 80528 - 02 <br /> fasoline_Range ND 320 321/300 100/94 65-135 6 <br /> enzene ND 20 20 3/22 5 102/113 65-135 10 <br /> oluene ND 20 20.8/22 7 104/114 65-135 9 <br /> Ethyl Benzene ND 20 21 0/22 7 105/114 65--135 8 <br /> 'Total Xylenes ND 60 62 9/68 7 105/115 65-135 9 <br /> >> Surrogate Recoveries (t) <t <br /> ,#Trifluorotoluene (SS) 99/104 50-150 <br /> 1 <br /> jefinitions <br /> ND = Not Detected <br /> = Reporting Limit <br /> Not Analysed <br /> RPD - Relative Percent Difference <br /> /L = parts per billion (ppb) ug/kg = parts per billion (ppb) <br /> /L T 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 1555 Burke St Unit 1 309 S Cloverdale St Suite B-24 <br /> Martinez California 94553 San Francisco California 94124 Seattle Washington 98108 <br /> 15101 729 15 f 2 / fax (5101 729-1526 0151 647-2081 / fax 0151 821-7123 (2061763-2992 / fax (206) 763-8429 <br />