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110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> MCCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> Advanced GeoEnvironmental Client Project ID Chase Chevrolet-Date Sampled 11/17-11/20/95 <br /> 1803 West March Lane,Ste A Madison <br /> Date Received 11/22/95 <br /> Stockton,CA 95207 Client Contact Kevin McKibben Date Extracted 11/22/95 <br /> ' Client P ODate Analyzed 11/22/95 <br /> Total Recoverable Petroleum Hydrocarbons as Oil&Grease(with Silica Gel Clean-up) by Scanning IR Spec- <br /> trometry* <br /> EPA method 418 1 or 9073 Standard Methods 5520 C&F <br /> Lab ID Client ID Matrix TRPH+ <br /> 1 58874 MW-18 1 11-20-95 W ND <br /> 58875 MW18-25 S ND <br /> 1 <br /> Reporting Limit unless other- W 10 mg/L <br /> wise stated,ND means not de- <br /> tected above the reporting limit S 10 mg/kg <br /> 'ivater samples are reported in mg/L and soils in mg/kg <br /> ' 9 surrogate diluted out of range <br /> + At the laboratory's discretion, one positive sample may be run b��yy direct injection chromatogra by with FID <br /> detection The following comments ertam to this GC result a)gasoline-range compounds(C6-C 12)are present, <br /> b) diesel range compounds (CIO-C23) are present, c) oil-range compounds (> C18) are present d) other <br /> patterned solvent(7) a in <br /> isolated peaks,0 GC compounds are absent or significant relative to TRPR inferring <br /> that complex biologically derived molecules (hpids?)are the source of IR absorption, h) a lighter than water <br /> immiscible sheen is present,i) liquid sample thal contains greater than-- 5 vol % sediment <br /> lie <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />