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C Superior precision Analytical, Inc. <br /> A member of ESSCON Environmental Support Service Consortium <br /> 9ne Tech Services Project 950308-K1 <br /> A to Jim Keller Reported on March 16, 1995 <br /> Total Petroleum Hydrocarbons - Gasoline, Benzene, Toluene, Ethyl-benzene, and Xylenes <br /> By EPA SW-846 Methods 8015M/8020 <br /> LAB ID Sample ID Matrix Dil Factor Moisture <br /> 70265-01 MWl Water 50 0 - <br /> 70265-02 MW2 Water 1 0 - <br /> 70265-03 MW3 Water 1 0 - <br /> 70265-04 MW4 Water 1 0 - <br /> R E S U L T S O F A N A L Y S I S <br /> Compound 70265-01 70265-02 70265-03 70265-04 <br /> Conc RL Conc RL Conc RL Conc RL <br /> ug/L ug/L ug/L ug/L <br /> Gasoline—Range 4600 2500 2200 50 ND 50 ND 50 <br /> Benzene 1100 25 170 0 5 ND 0 5 ND 0 5 <br /> Toluene ND 25 3 0 0 5 ND 0 5 ND 0 5 <br /> Ethyl Benzene 230 25 230 0 5 ND 0 5 ND 0 5 <br /> Total Xylenes 280 25 150 0 5 ND 0 5 ND 0 5 <br /> leurrogate Recoveries (W) << <br /> fluorotoluene (SS) 106 145 100 97 <br /> 0 Page 2 of 8 <br /> Certified Laboratories <br /> 825 Arnold Dr , Suite 1 14 1 555 Burke St Unit 1 309 S Cloverdale St Suite $-24 <br /> Martinez California 94553 San Francisco California 94 124 Seattle Washington 98108 <br /> (510) 229-1512 / fax (5 10) 229-1526 (4 15) 647-2081 / fax (415) 821-7123 {206) 763-2992 / fax (206) 763-8429 <br />