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Superior Precisior7 Ana/ytiCa/, /r7C. <br /> A member of ESSCON Environmental Support Service Consortium <br /> • Total Petroleum Hydrocarbons - Gasoline, Benzene, Toluene, Ethyl-benzene, and Xylenes <br /> By EPA SW-846 Methods 8015M/8020 <br /> Quality Assurance and Control Data <br /> Laboratory Number 70265 <br /> Method Blank(s) <br /> BC141 37-01 <br /> Conc RL <br /> ug/L <br /> Gasoline—Range ND 50 <br /> Benzene ND 0 5 <br /> Toluene ND 0 5 <br /> Ethyl Benzene ND 0 5 <br /> Total Xylenes ND 0 5 <br /> » Surrogate Recoveries (g) << <br /> Trifluorotoluene (SS) 86 <br /> • <br /> is Page 5 of 8 <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 Franctsco California 94124 Seattle Washington 98108 <br /> (5 10) 229-1512 / fax {5 10) 229-1526 (41 5) 647-2081 / fax (415) 821-7 123 (206) 763-2992 / fax (206) 763-8429 <br />