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09/07/01 FRI 06:55 FAX 209 304 1507 Castle Analytical Lab 003 <br /> L <br /> CASTLE ANALYTICAL LABORATORY <br /> Environmental Tasting Services 2333 Shuttle Drive,Atwater,CA 95301 Phone: (209)384-2930 <br /> Certificate#2079 Fax: (209)3841507 <br /> Geological Technics Client Project ID:#959.2 Sampled. 8-16-41 i <br /> 2741 River Road Client Project Name:Purdon Received: 8.21-01 <br /> Modesto,California 95351 Lab Reference Number.3993 ExttUted: 8-30-01 <br /> Attn: Sample Description:Water. Analyzed, 8-3mi <br /> Sample Prep/Analysis Method;EPA 5030IB260 Reported: 95-01 <br /> Lab Numbers:3993-1W,ZW,3W,4W <br /> r <br /> GASOLINE ADDITIVES BY EPA METHOD 8260 GUMS <br /> ANALYTE REPORTING SAMPL- jD SAMPLE ID SAMPLE ID SAMPLE ID <br /> LIMIT GP-1 21-24' GIS-2 21-24 GP-3 21.24' GP-4 20-22' <br /> ,,....WIL) (P 1L0 WIL) _ (p2!Lj (091L) <br /> FUEL OXYGENAT <br /> Methyl tart-Butyl Ether(MTBE) .0.50 ND ND ..Np ND � <br /> 0i-igoprvpyl Ether (DIPS) 0.50 ND NO ND ND <br /> Ethyl tert-Butyl Ether (EfBE) 0.50 ND ND ND ND <br /> tert Amyl Methyl Ether(TAME) 0,50 ND NO Np ND <br /> tert-butanol(TBA) 20 NO ND ND NO <br /> Report Limlt Multiplication Factor: 1 1 1 1 <br /> I <br /> Surrogate Recoverles t <br /> 1,2-Dichloroethane-d4 97% 109% 108% 103% <br /> Toluenei18 111% 106% 104% 113% <br /> Instrument ID:HP 5972MS <br /> Analytes reported as ND were not detectad_or below the Practical Quantitation Limit <br /> Practical Quantitation Limit=Reportin it x Report Limit Multiplication Factor <br /> {uglL)= microgr per ' r or p per billy n{p ) <br /> i <br /> ANALYST: APPROVED SY: <br /> Clare J. Cone <br /> JBAS C.Phillips <br /> aboratory Director <br /> b <br /> I <br />