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i <br /> 1 <br /> aUoE laboratories <br /> . Ground Zero Analysis, c <br /> ' 1714 Main Street In Date(s)Sampled 02120/02 <br /> Escalon, CA 95320 02/21/02 <br /> Date Received 02/21/02 <br /> ' Prol ID 186 Volatile Organics By GC/MS Date Analyzed 02/28/02 <br /> Site Knowles Rock <br /> Method EPA 8260B <br /> ' Lab ID CO2339 CO2340(d) CO2341 (d) CO2342 <br /> Sample ID KR MW-12 KR MW-14 KR VW-2 KR VW-3 <br /> ' Matrix Water Water Water Water <br /> ' t-Butanol(TBA) <20 <1,000 <400 <20 <br /> Methyl-t-Butyl Ether(M BE) 200 70,000 <40 <2 0 <br /> ' Di-Isopropyl Ether(DIP <2 0 <100 <40 <2 0 <br /> Ethyl-t-Butyl Ether(ET ) <2 0 <100 <40 <2 0 <br /> t-Amyl Methyl Ether(T E) <20 <100 <40 <2 0 <br /> 1,2-Dlchloroethane(1,2 DCA) 19 <100 <40 <2 0 <br /> 1,2-Dlbromoethane(EI7 ) <20 <100 <40 <2 0 <br /> 1 QA/QC <br /> Surrogate Spike Recovery 102% 98% 97% 91% <br /> ' (d) Higher detection limits andue to dilution factors Sample diluted due to high organic content <br /> Note Water samples are repo ted inµgll-,soil and sludge samples in mg/kg <br /> Hiram ueto <br /> Lab Director <br /> DHS Certification No 2 9 <br /> 1 30 7 Fifth St, Ceres, CA 95307 • Phone (209) 581-9280 • Fax (209) 581-9282 <br /> I <br /> 1 , <br />