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McCAMPBELL ANALYTICAL INC. Ti 110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Fax:510-798-1622 <br /> Advanced GeoEnvironmental,Inc. Client Project ID: Weldon Church Date Sampled: 11/05/96 <br /> 1803 West March Lane,Suite A Property <br /> Date Received: 11/07/96 <br /> Stockton,CA 95207 Client Contact:Bill Little Date Extracted: 11/08-11/09/96 <br /> Client P.O: Date Analyzed: 11/08-11/09/96 <br /> Gasoline Range(C6-02)Volatile Hydrocarbons as Gasoline*,hith Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030 modified 8015 and 8020 or 602•California RW CB SF Bay Re ion method GCFID(5030 <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Rec. <br /> zene Surrogate <br /> 70993 MW1/11-5-96 W 350,a 4.6 11 5.3 1.4 17 105 <br /> 70994 MW2/11-5-96 W ND ND ND ND ND ND 101 <br /> .. 70995 MW3/11-5-96 W ND ND ND ND ND ND 104 <br /> 70996 MW4/11-5-96 W 4100,a 45 260 35 140 270 101 <br /> r <br /> Reporting Limit unless W 50 ug/L 5.0 0.5 0.5 0.5 0.5 <br /> otherwise stated;ND <br /> means not detected <br /> above the reporting limit S 1.0 mg/kg 0.05 0.005 0.005 0.005 0.005 <br /> *water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,and all TCLP extracts in mg/L <br /> #cluttered chromatogram;sample peak coelutes with surrogate peak <br /> + The following descriptions of the TPH chromatogram are cursoin nature and McCampbell Analytical is not <br /> responsible for their interpretation:a) unmodified or weakly mod led gasoline is significant;b) heavier gasoline <br /> range compounds are si ificant(aged gasoline?);c)ligghter gasoline range compounds(the most mobile fraction) <br /> are sigi ficant; d) asoune range compounds having broacrchromatographic peaks are significant;biologically <br /> altered gasoline?;e'5 TPH pattern that does not appear to be derived from gasoline Q);f) one to a few isolated <br /> peaks present;g)strongly aged gasoline or diesel range compounds are significant;h)lighter than water immiscible <br /> sheen is present;i) liquid sample that contains greafer than- 5 vol.% sediment;j) no recognizable pattern. <br /> DH S Certification No. 1644 /;� Edward Hamilton,Lab Director <br />