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Superior RreCiSior7 Ana/ytiCa/, // C- <br /> A member of ESSCON Environmental Support Service Consortium <br /> Gasoline Y <br /> 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 81359 <br /> Compound Sample SPK Level SPK Result Recovery Limits RPD <br /> conc. <br /> For Water Matrix (ug/L) <br /> BE011 04 05 / 06 - Sample Spiked 81342 - 02 <br /> Gasoline—Range ND 354 355/333 100/94 65-135 6 <br /> Benzene ND 20 23/22 115/110 65-135 4 <br /> Toluene ND 20 25/24 125/120 65-135 4 <br /> Ethyl Benzene ND 20 22/21 110/105 65-135 5 <br /> Total Xylenes ND 60 65/64 108/107 65-135 1 <br />» Surrogate Recoveries (k) << <br /> TFluorotoluene (SS) 109/108 50-150 <br /> Definitions <br /> ND = Not Detected <br /> RL = Reporting Limit <br /> NA = Not Analysed <br /> RPD = Relative Percent Difference <br /> ug/L = parts per billion (ppb) ug/kg = parts per billion (Ppb) <br /> mg/L = parts per million (ppm) mg/kg = parts per million (ppm) <br /> Page 4 of 4 <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 /> is 1 ni 77n_1 1; 1 7 f,Y rr,1 nl 7-?n-1 raw, 14 1 1;1 (,47--)nR 1 / faY 141 Sh R71-71 »nl,l Pn�c <br />