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EXCELCHEM <br /> ENVIRONMENTAL LABS <br /> 500 Giuseppe Court, Suite 9 <br /> Roseville, CA 95678 <br /> Phone# (916) 773-3664 Fax# (916) 773-4784 <br /> QA/QC REPORT <br /> Attention Vic Cherven Date Sampled 07-02-96 <br /> Upgfadient Enmronlnentai Date Received 07-08-96 <br /> 1017 26th Street MTBE Analyzed 07-11,12-96 <br /> Sac, CA 95816 <br /> Project 96006 Matrix Sail <br /> MTBE <br /> PPB <br /> Rep0!1!m Limit 05 <br /> QA/QC PARAMETER <br /> Matrix Blank ND <br /> PERCENT RECOVERIES <br /> Matrix Spike 128% <br /> Matrix Spike 104% <br /> Duplicate <br /> ppb-parts per billion-ug/L-mixxogrun per liter <br /> ND -Not detected. Compound(s)may be present at concentrations below the reporting lunrt. <br /> All surrogate recoveries were witid n 30%of target sines. <br /> Spikes Ak Spike DapBeates were each spaced with 230 ng Nff HE standard. <br /> ANALYTICAL PROC19DURES <br /> MTSR (Methyl Tert-Butyl Ether)-MTBE is aaalyned by EPA Method 602 which utilum a gn chromatograph (GC) equipped with a <br /> photmomzatton detector(PID} <br /> 07-15-96 <br /> b tory Representative Date Reported <br /> EXCELCHEM ENVKONMWTAL LABS 15 CERTWMD BY THE STATE OF CALIFORNIA <br /> DEFAR'LM4T OF HEALTH SERV=S AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (CaeBcoon No 1760) <br />