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t <br /> 1 <br /> a5Ton laboratories <br /> • GROUND ZERO ANALYSIS, INC <br /> ' 1714 Main Street <br /> Escalon,CA 95320 Date Sampled 03107/01 <br /> Date Received 03/07/01 <br /> ' <br /> Pro) ID 186 Volatile Organics By GCIMS Date Analyzed 03112101 <br /> Site Knowles Roek <br /> Method EPA 8260B <br /> Lab ID B03177 B03178(d) 803179 <br /> Sample 1D KR MW-10 KR MW-11 KR MW-12 <br /> Matnx Water Water Water <br /> ' <br /> Methanol <500 <500 <500 <br /> Ethanol <250 <250 <250 <br /> t-Butanol(TBA) <20 <20 <20 <br /> ' Methyl-t-Butyl Ether(MTBE) 42 <2 0 13 <br /> I <br /> Di-Isopropyl Ether(DIPE) <20 <2 0 <2 0 <br /> Ethyl-t-Butyl Ether(ETBE) <2 0 <2 0 <2 0 <br /> t-Amyl Methyl Ether(TAME) <2 0 <2 0 <2 0 <br /> ' 1,2-Dichloroethane(1,2-DCA) 17 42 81 <br /> 1,2-Dibromoethane(EDB) <2 0 <20 <2 0 <br /> i <br /> QA/QC <br /> Surrogate Spike Recovery 63% 63% 60% <br /> (d) Higher detection I¢mrts are due to dilution tactors Sample diluted due to high organic content and/or high concentration of target analytes <br /> `water samples are reported in ugA-,sod and sludge samples in ug/kg <br /> ' i <br /> Hiram Cueto <br /> Lab Director <br /> ' DHS Certification No 2359 <br /> ' 3037 Fifth St, Ceres, CA 95307 • Phone (209) 581-9280 • Fax (209) 581-9282 <br /> i <br />