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' Superior /7reciSAW7 ,4na/ <br /> Y tical, /roc. <br /> A member of ESSCON Environmental Support Service Consortium 4 <br /> Gasoline Range Petroleum Hydrocarbons and BTXE <br /> by EPA SW-846 5030/6015M/8020 <br /> Gasoline Range quantitated as all compounds from C6-C10 <br /> Quality Assurance and Control Data <br /> Laboratory Number 81504 <br /> 'Compound Sample SPK Level SPK Result Recovery Limits RPD <br /> cone g $ <br /> For Water Matrix (ug/L) <br /> BE161 05 02 / 03 - Sample Spiked 81500 - 05 <br /> Gasoline_Range ND 320 360/310 113/97 65-135 15 <br /> Benzene ND 20 21/21 105/105 65-135 0 <br /> Benzene <br /> ND 20 21/20 105/100 65-135 5 <br /> Ethyl Benzene ND 20 21/20 105/100 65-135 5 <br />,,Total Xylenes ND 60 67/61 112/102 65-135 9 <br />> Surrogate Recoveries (t) CC <br /> Trifluorotoluene (SS) 95/98 50-150 <br /> P <br /> 1 <br /> If initions <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 = 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 94124 Seattle Washington 98108 <br /> (510) 229-1512 / fax (5)0) 229-1526 (415) 647-2081 / fax f415) 821-7123 (206) 763-2992 / fax f206) 763-8429 <br />