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1 <br /> gU@H laboratories <br /> fGround Zero Analysis <br /> t 1714 Main Street Date(s)Sampled 02/19/03 <br /> Escalon,CA 95320 02121/03 <br /> Date Received 02/21/03 <br /> ' Prol ID 186 Volatile Organics By GC/MS Date Analyzed 02126/03 <br /> Site Knowles Roek <br /> Method EPA 8260E <br /> ' Lab ID D02293 <br /> 002294 D02295 (d) D02296(d) <br /> Sample ID KR MW-15B KR MW-15C KR MW-16A KR MW-1613 <br /> ' Matnx Water Water Water Water <br /> ' t-Butanol(TBA) <20 <20 <400 <400 <br /> Methyl-t-Butyl Ether(MTBE) 86 <20 2,900 260 <br /> Di-Isopropyl Ether(DIPE) <2 0 <2 0 <40 <40 <br /> Ethyl-t-Butyl Ether(ETBE) <20 <2 0 <40 <40 <br /> t-Amyl Methyl Ether(TAME) <2 0 <2 0 <40 <40 <br /> ' 1,2-Dichloroethane(1,2-DCA) 84 <20 <40 <40 <br /> 1,2-Dlbromoethane(EDB) <2 0 <2 0 <40 <40 <br /> QA/QC <br /> Surrogate Spike Recovery 100% 102% 100% 104% <br /> (d) Sample diluted due to high concentration off target analytes and/or high organic content <br /> Note Water samples are reported inµg/L,sod and sludge samples in mg/kg <br /> Htram ueto <br /> ' Lab Director <br /> DHS Certlbcatton No 2359 <br /> 1 <br /> ' 3037 Fifth St , Ceres, CA 95307 * Phone (209)581-9280 9 Fax (209)581-9282 <br />