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Superior Prec-isiorf Analytical' h7c. <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 81624 <br /> Method Blank(s) <br /> BE251 19-01 BE261 19-01 <br /> Conc RL Conc RL <br /> ug/L ug/L <br /> Gasoline Range ND 50 ND 50 <br /> Benzene ND 0 5 ND 0 5 <br /> Toluene ND 0 5 ND 0 5 <br /> Ethyl Benzene ND 0 5 ND 0.5 <br /> Total Xylenes ND 0 5 ND 0 5 <br /> » Surrogate Recoveries (t) << <br /> Trifluorotoluene (SS) 87 86 <br /> • <br /> Page 3 of 4 <br /> Certified Laboratories <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 /> (S 10) 229-1512 /fax (510) 229-1526 (41 5) 647-2081 /fax f41 5) 82 1-7123 (206) 763-2992 /fax (206) 763-8429 <br />