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i <br /> 1 <br /> laboratories <br /> Ground Zero Analysis Date(s)Sampled: 05/20/04 <br /> 1714 Main Street Volatile Organics By GC/MS 05/21/04 <br /> Escalon,CA 95320 Date Received: 05/21/04 <br /> Proj. ID: 186 Method:EPA 8260B Date Analyzed: 05/25/04 <br /> 1 Site:Knowles Roek <br /> ' Matrix:Water <br /> Lab ID: E05321 (d) E05322(d) E05323(d) E05324 <br /> Sample ID: KR MW-3 KR MW-4 KR MW-5 KR MW-6 <br /> Units: uglL uglL ug/L ug1L <br /> t-Butanol(TBA) <2,000 <1000 <200 <20 <br /> ' Methyl-t-Butyl Ether(MTBE) 35,000 5,9000 <20 <2.0 <br /> Di-Isopropyl Ether(DIPE) <200 <100 <20 <2.0 <br /> ' Ethyl-t-Butyl Ether(ETBE) <200 <100 <20 <2.0 <br /> t-Amyl Methyl Ether(TAME) <200 <100 <20 <2.0 <br /> 1 1 2-Dichloroethane1 2-DCA <br /> ( , ) <200 <100 <20 <2.0 <br /> '. 1,2-Dibromoethane(EDB) <200 <100 <20 <2.0 <br /> QA/QC: <br /> Surrogate Spike Recovery: 93% 95% 91% 910 <br /> Notes: <br /> ) <br /> (d):Sample diluted due to high concentrafl n of <br /> target analytes and/or high organic content <br /> ' Water samples are reported in ug/L;soillsludge samples in mg/Kg;producUoiVnon-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 Cue o <br /> ' Lab Director <br /> DNS Certification No.2359 <br /> 3037 F,lth 5t., Ceres, CR 95307 • Phone (209) 581 -9280 • Fax (209) 581 -9282 <br /> 1 <br />