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' 110 Second Avenue South,#iD7, Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> lid//www mccamR ell co m E-mail main@mccamrbell com <br /> I <br /> Advanced GeoEnvironmental Client Project 1D Stockton Plating <br /> Date Sampled 11/04/98 <br />' 4005 North Wilson Way Date Received 11/10/98 <br /> Stockton,CA 95205 Client Contact Bill Little Date Extracted 11/10/98 <br />' Client P O Date Analyzed 11110-11112198 <br />' Gasoline Range(C6-C12)Volatile HNdrocarbons as Gasoline*,with Methyl tert-Butyl Etber* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GCFID(5030) <br /> Lab 1D Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethzen e en- Xylenes %Recovery <br /> Surrogate <br />' 98356 MW6-55 S 8 8,a --- 057 1 3 027 0 89 98 <br /> 98357 MW6-60 S 3 S,a --- 0 12 045 0 10 047 100 <br />' 98358 MW6-70 S ND --- 0 009 0 028 0 008 0 036 97 <br /> 98359 MW6-80 S ND --- 0 020 0 062 0 014 0 072 100 <br /> i <br /> li <br /> I <br /> I <br /> I <br /> I Reporting Limit unless W 50 ug/L 5 0 0 5 05 0 5 0 5 <br /> otherv,ise stated,ND <br /> means not detected above <br /> the reporting limit mg/kg S 1 0 m /k 0 05 0 005 0 005 0 005 0 005 <br /> I *water andvapor samples are reported in ug/L,wipe samples in ughSipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in ug/L <br /> cluttered chromatogram sample peak coelutes with surrogate peak <br /> The following descriptions of the TPH chromatogram are cursory in nature and McCampbeli Analytical is not responsible for their <br /> interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are significant(aged <br /> gasoline') c) lighter gasoline range compounds (the most mobile fraction) are significant d) gasoline range compounds having broad <br /> chromatographic peaks are significant biologically altered gasohne?,e)TPH patter that does not appear to be derived from gasoline('),0 <br /> I one to a few isolated 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 greater than—5 vol %sediment j)no recognizable pattern <br /> DHS Certification No 1644 ///—Edward Hamilton, Lab Director <br /> I <br />