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(Y <br />Superior precision Aria/ytica/, /roc- <br />A member of ESSCON Environmental Support Service Consortium <br />>7 Surrogate Recoveries <br />46ifluorotoluene (SS) <br />Definitions <br />ND - <br />Gasoline Range Petroleum Hydrocarbons and BTXE <br />RL - <br />by EPA SW -846 5030/8015M/8020 <br />NA = <br />Not Analysed <br />Gasoline Range quantitated as all compounds from <br />C6 -C10 <br />ug/L = <br />Quality Assurance and Control Data <br />mg/L = <br />parts per million (ppm) <br />Laboratory Number. 81907 <br />Compound <br />Sample SPK Level SPK Result <br />Recovery <br />conc <br />For Water Matrix (ug/L) <br />BF191 05 02 / 03 - Sample Spiked 81898 <br />- 05 <br />Gasoline_Range <br />ND 320 330/300 <br />20 19/22 <br />103/94 <br />95/110 <br />Benzene <br />ND <br />ND 20 19/21 <br />95/105 <br />Toluene <br />Ethyl Benzene <br />ND 20 20/21 <br />100/105 <br />Total Xylenes <br />ND 60 58/62 <br />97/1.03 <br />>7 Surrogate Recoveries <br />46ifluorotoluene (SS) <br />Definitions <br />ND - <br />Not Detected <br />RL - <br />Reporting Limit <br />NA = <br />Not Analysed <br />RPD = <br />Relative Percent Difference <br />ug/L = <br />parts per billion (ppb) <br />mg/L = <br />parts per million (ppm) <br />0 <br />Page 5 of 5 <br />Certified Laboratories <br />99/103 <br />ug/kg = parts pe <br />mg/kg = parts pe <br />825 Arnold Dr , Suite 114 1555 Burke St , Unit 1 309 S Cloverdale St Suite B-24 <br />Martinez, California 94553 San Francisco California 94124 Seattle Washington 98108 <br />-7-)n I r- I -> > fes„ rrZ t ni -?-7n_i 14 1 E;i (47-?np i / fax 141 S1 871-7123 12061 763-2992 / fax 1206) 763-8429 <br />