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1 <br /> �awon laboratories <br /> iGround Zero Analysis. <br /> ' 1714 Main Street Date(s)Sampled 02/99/03 <br /> Escalon,CA 95320 02/21/03 <br /> Date Received 02121/03 <br /> ' Pro) ID 186 TPH-g l BTX&E Date Analyzed 02/25/03 <br /> Site Knowles Roek <br /> Method 8015N!180218 <br /> Lab ID D02289 D02290 D02291 D02292 <br /> Sample ID KR MW-12 KR MW-13B KR MW-14 KR MW-15A <br /> ' Matnx Water Water Water Water <br /> ' Total Petroleum Hydrocarbons <br /> @ Gasoline <50 230,000 72,000(g) <50 <br /> I <br /> Benzene <0 5 9,500 20,000 <0 5 <br /> Toluene <0 5 32,000 93 <0 5 <br /> Xylenes <10 19,000 900 <10 <br /> ' Ethyl Benzene <0 5 3,100 660 <0 5 <br /> QAIQC <br /> Surrogate Spike Recovery 79% 902% 96% 72% <br /> ' Trfiuorotoluene <br /> t (g) Gas is pnmanly composed of Benzene <br /> Note Water samples are reported in gll-,sod and sludge samples in mglkg <br /> I <br /> 1 <br /> Hiram-C et'o <br /> ' Lab Director <br /> DNS Certification No 2359 <br /> 1 <br /> ' 3037 Fifth St, Ceres, CA 95307 • Phone (209)581-9280 • Fax (209)581-9282 <br />