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I <br /> a m laboratories 1 <br /> 1 � <br /> GROUND ZERO ANALYSIS, INC <br /> ' 1714 Main Street <br /> Escalon, CA 95320 <br /> Prol ID 329 Blank!QC Data Date Analyzed 03/12101 <br /> ' Site Knowles Roek <br /> Method.EPA 82608 � <br /> ' Lab ID BLKB0312 Reporting <br /> Sample ID Blank Limit <br /> Matrix Water (u IL) <br /> ' Methanol ND 500 <br /> Ethanol ND 250 <br /> 1 t-Butanol(TBA) ND 20 <br /> Methyl-t-Butyl Ether(MTBE) ND 20 <br /> 1 <br /> DI-Isopropyl Ether(DIPS) ND 20 <br /> ' Ethyl-t-Butyl Ether(ETBE) ND 20 <br /> t-Amyl Methyl Ether(TAME) ND 20 <br /> 1,2-Dlchloroethane(1,2-DCA) ND 20 <br /> ' 1,2-Dlbromoethane(EDB) ND 20 <br /> QAI'C <br /> ' Surrogate Spike Recovery 108% <br /> Matrix Spike Recovery Summary <br /> ' Percent Recovery <br /> Lab ID Client ID Analyte MS 1 MSD %RPD <br /> ' B03141 SBI-W MTBE 78 1 72 8 <br /> Laboratory Control Spike <br /> ' Lab ID Analyte Percent Recovery <br /> LCS0312C DIPE 76 <br /> . ND=Not detected at or above the reporting limit <br /> ' water samples are reported in Ng/L sod and sludge samples in mgAg <br /> 3037 Fifth St, Ceres, CA 95307 0 Phone (209) 581-9280 • Fax (209) 581-9282 <br />