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l _ <br /> I <br /> CASTLE ANALYTICAL LABORATORY <br /> I Environmental Testing Services 2333 Shuttle Drive Atwater, CA 95301 Phone (209)384-2930 <br /> Certificate#2480 Fax (209)384-1507 <br /> Advanced GeoEnvironmental Inc Client Project ID Pacific Car Wash Sampled 10-20-03 <br /> of Northern California Reference Number 6242 Received 10-22-03 <br /> 837 Shaw Road Sample Description Soil Extracted 10-23-03 <br /> Stockton CA 95215 Sample Prep/Analysis Method EPA 503018015M,8020 Analyzed 10-23-03 <br /> Attn Tim Cuellar Lab Numbers 6242-3S, 5S, 7S, 10S 12S Reported 11-07-03 <br /> TOTAL PETROLEUM HYDROCARBONS -GASOLINE RANGE <br />' WITH BTEX DISTINCTION <br /> ANALYTE REPORTING LIMIT SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE ID <br />' MW-16-25 MW-16-35 MW-16-45 MW-16-60 MW-16-70 <br /> (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) <br /> BENZENE 00050 ND ND ND ND ND <br /> TOLUENE 00050 ND ND ND ND ND <br />' ETHYLBENZENE 00050 ND ND ND ND NO <br /> TOTAL XYLENES 00050 ND ND ND ND ND <br />' GASOLINE RANGE <br /> HYDROCARBONS 10 NO NO ND ND NO <br />' Report Limit Multiplication Factor 1 1 1 1 1 <br /> 1 <br />' Surrogate%Recovery FID 72 2%1 PID 743% FID 664%l PID 703% Pip 590%/PID 66 t% FID 690%t PID 71 0% FID 666%l PID 663% <br /> Instrument ID VAR-GC1 VAR-GC1 VAR-GC1 VAR-GC1 VAR-GC1 <br /> Analytes reported as ND were not detected or below the Practical Quantitation Limit <br /> I —4= RclnrFinri i imit Y RPpnrt Limit Multinlication Factor <br /> 1 i <br /> ZZ <br /> 1 { <br /> ANALYST APPROVED BY <br /> Clan J Cone Jam hr!lrps <br /> L oratory Director <br /> 1 <br />