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-4 <br /> 4 110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> MCCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Fax:510-798-1622 <br /> - I <br /> Advanced GeoEnvironmental,Inc. Client Project ID:Chirelas Property Date Sampled:03/25/97 <br /> 1803 West March Lane, Suite A Date Received:03/26/97 <br /> Stockton,CA 95207 Client Contact:Bill Little Date Extracted: 03/26/97 <br /> Client P.O: Date Analyzed:03/26/97 <br /> Multi-Range(Gasoline,Diesel,Motor Oil) TPH as Diesel <br /> EPA methods modified 8015,and 3550 or 3510;California R1v CB(SF BayRe ion)method G CF1D 3550 or GCFID(3510 <br /> Lab ID Client ID Matrix TPH(Gas)+ TPH(Diesel) TPH(MotorOil)° % Rec. <br /> (C7-C 12) (CIO-C23) (> C18) Surrogate <br /> 74777 West Well W ND ND ND 106 <br /> i <br /> I <br /> I <br /> Reporting Limit unless other- W 100 ug/L 50 ug/L 250 ug/L <br /> wise stated;ND means not de- <br /> tected above the reporting limit S 10 mg/kg 10 mg/kg 50 mg/kg <br /> water samples are reported in ug/L,soil and sludge samples in mg/kg,and all TCLP extracts in mg/L <br /> cluttered chromatogram resulting in surrogate and sample peak coelution, or; surrogate peak is on elevated <br /> baseline,or;surrogate has been diminished by dilution of original extract. <br /> °oil-range compounds are not fully recovered by this GC methodology <br /> + The follo-vN ng descriptions of the TPH chromatogram are cursory in nature and McCainpbell Analytical is not <br /> responsible for their interpretation: a) unmodified or weakly modified diesel is significant; b) diesel ran gge <br /> compounds are significant;no recognizable pattern;c)aged diesel?is significant);d) gasoline range compounds <br /> are significant; e) medium boiling point pattern that does not match diesel((?); f) one to a few isolated peaks <br /> present;g)oil range compounds are significant;h)lighter than water immiscible sheen is present;i)liquid sample <br /> that contains greater than-- 5 vol.% sediment. <br /> DHS Certification No. 1644 Edward Hamilton,Lab Director <br />