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1 � <br /> wg@a laboratories <br /> i <br /> Ground Zero Analysis, Inc Date Sampled 11/19/03 <br /> 1714 Main Street TPH-g 1 BTX&E 11/20/03 <br /> ' Escalon,CA 95320 Date Received 11/21/03 <br /> Method 80156180216 Date Analyzed 12/02/03 <br /> ' Pro) ID 186 <br /> Site Knowles Roek <br /> Matrix Water <br /> Lab ID D11471 D11472 D11473 D11474 <br /> Sample ID KR MW-3 KR MW-4 KR MW-5 KR MW-6 <br /> Units ug/L uglL ug[L uglL <br /> ' Total Petroleum Hydrocarbons <br /> @ Gasoline 33,000 27,000 25,000 <50 <br /> ' Benzene 13,000 6,500 4,300 <0 5 <br /> Toluene 250 69 330 <0 5 <br /> ' Xylenes 290 1,200 2,300 <10 <br /> ' Ethyl Benzene 58 87 1,500 405 <br /> QArQC <br /> 1 Surrogate Spike Recovery 90% 88% 92% 96% <br /> Trdluorotoluene <br /> 1 <br /> 1 <br /> Note(s) <br /> ' Water samples are reported in ug/L soil/sludge samples in mg/Kg producdodlnon aqueous liquid samples in mg/L <br /> ND means not detected at or above the stated reporting limit NIA means analyte not applicable to this analysis <br /> Hiram Cu _ <br /> eto <br /> t Lab Director <br /> DHS Certification No 2359 <br /> 1 <br /> 3037 Fifth St, Ceres, CA 95307 • Phone (209)581-9280 Fax (209) 581-9282 <br />