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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-Van Date Sampled 07/17-07/18/95 <br /> 1803 West March Lane,Ste A Buren <br /> Date Received 07/24/95 <br /> Stockton,CA 95207 Client Contact Bob Marty Date Extracted 07/26/95 <br /> Client P O Date Analyzed 07/26/95 <br /> Gasoline Range(C6-02)Volatile Hydrocarbons as Gasoline*,with BTEC* <br /> EPA methods 5030 modified 8015 and 8020 or 602 California RW CB SF Ba Re ion method GCFID 5030 <br /> Lab ID Client ID Matrix TPH(g)} Benzene Toluene Ethylben- Xylenes %Rec <br /> zene Surrogate <br /> 54683 GP18-20 S ND ND ND ND ND 103 <br /> 54684 GP 18-25 S 1 6,a 0 17 ND 0 028 035 105 <br /> 54685 GP20-20 S ND ND ND ND ND 95 <br /> 54686 GP20-25 S ND ND ND ND ND 95 <br /> I <br /> 54687 GP21-20 S ND ND ND ND ND 105 <br /> 54688 GP21-25 S ND,a 0 032 ND 0 027 0 088 99 <br /> 54689 GP22-18 S ND ND ND ND ND 105 <br /> 54690 GP24-15 S ND ND ND ND ND 107 <br /> Reporting Limit unless other- W 50 ug/L 05 05 05 05 <br /> wise stated,ND means not de- <br /> tected above the reporting limit S 10 mg/kg 0 005 0 005 0 005 0 005 <br /> *water and vapor samples are reported in ug/L,soil 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 cursory in nature and McCampbell Anal?tical is not <br /> responsible for their interpretation a)unmodified or weakly modified gasoline is si lificant,b) heavier gasoline <br /> range compoundsare s►g►ificant(aged gasoline?),c)li htergasoline range compounds(the most mobile inaction) <br /> are significant, d) asoline range compounds having broad-chromatoVaphic peaks are significant biologically <br /> alttrre gasoline?,e? TPH pattern that does not appear to be derived from gasoline Q) 1) one to a few isolated <br /> peaks present, )strongly aged gasoline or diesel range compounds are significant,h)lighter than Nater immiscible <br /> sheen is present,i) liquid sample that contains greater than_ 5 vol % sediment,}) no recognizable pattern <br /> DHS Certification No 1644 ��� Edward H amilton,Lab Director <br />