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110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br /> I F4 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> it _llwww mccampbell com E-mail mam@mccampbell corn. <br /> i <br /> Environmental Science Associates Client Project ID #200252, Stockton Date Sampled 07/05/00 <br /> 225 Bush Street, Suite 1700 <br /> Date Received 07/07/00 <br /> Client Contact Peter Hudson Date Extracted 07/07-07/26/00 <br /> San Francisco,CA 94104 <br /> Client P O Date Analyzed 07/07-07/26/00 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline'*,with Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GCFID(5030) <br /> Ethylben- %Recovery <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Berizene Toluene Xylenes <br /> zene Surrogate <br /> 42270 TPI-12' S ND ND ND ND ND ND 105 <br /> 42271 TPI-16' S ND ND ND ND ND ND 102 <br /> 42272 TP1-20' S ND ND ND ND ND ND 102 <br /> 42273 TP 1-24' S ND ND ND ND ND ND 98 <br /> 42274 TP2-16' S ND ND ND ND ND ND 100 <br /> 42275 TP2-14' S ND ND ND ND ND ND 101 <br /> 42278 TP3-20' S ND ND ND ND ND ND 99 <br /> M 42279 TP4-12' S ND ND ND ND ND ND 103 <br /> 42280 TP4-15' S ND ND ND ND ND ND 100 <br /> 42281 TP4-20' S ND ND ND ND ND ND 103 <br /> 42282 TPS-16' S ND ND ND ND ND ND 105 <br /> 42283 TP5-20' S ND ND ND ND ND ND 102 <br /> 42285 TP-1 W ND ND ND ND ND ND 97 <br /> 42286 TP-2 W ND ND ND ND ND ND 98 <br /> 42287 TP-3 W ND ND ND ND ND ND 98 <br /> 42288 TP-4 W ND 1100 ND ND ND ND 98 <br /> 42289 TP-5 W ND ND ND ND ND ND 100 <br /> Reporting Limit unless W 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit S 10 mg/kg 005 0 005 0 005 0 005 0 005 <br /> -- •water and vapor samples are reported in ug/L,wipe samples in ug/wipe,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 T H chromatogram are cursory in nature and McCampbell 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 gasoline?,c)TPF{pattern that does not appear to be derived from gasoline(?),f) <br /> 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 />