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110 2nd Avenue South,#D7,Pacheco,CA 44553-5560 <br /> MCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 64httn//www mccamnbell com E-mail main@mccampbell corn <br /> Environmental Science Associates Client Project ID #200252, Stockton Date Sampled 07!05100 <br /> 225 Bush.Street, Suite 1700 Date Received 07/07/00 <br />--- - - - - - - 1=-Client Contact Peter Hudson= Date Extracted 07/07/00 T -- <br /> San Francisco, CA 94104 <br /> Liet�PO _ Date Analyzed 07/07-07110/00 <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 /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 42270=TP-1=12_ S= ND —ND——ND——ND—_ND— _105- <br /> 42271 <br /> 105 42271 TPI-16' S ND --- ND ND ND ND 102 <br /> 42272 TPl-20' S ND --- ND ND ND ND 102 <br /> 42273 TP 1-24' S j ND --- ND ND ND ND 98 <br /> 42274 TP2-16' S ND --- ND ND ND ND 100 <br /> 42275 TP2-14' S ND --- ND ND ND ND 101 <br /> 42278 TP3-20' S ND --- ND ND ND ND 99 <br /> 42280 TP4-15' S ND --- ND ND ND ND 100 <br /> 42281 TP4-20' S ND -- ND ND ND ND 103 <br /> 42282 TP5-16' S ND ND ND ND ND 105 <br /> 42283 TP5-20' S ND --- ND ND ND ND 102 <br /> 42285 TP-1 W ND --- ND ND ND ND 97 <br /> 42286 TP-2 W ND --- ND ND ND ND 98 <br /> 42287 TP-3 W ND --- ND ND ND ND 98 <br /> 42288 TP-4 W ND --- ND ND ND ND 98 <br /> 42289 TP-5 W 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 ate 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 a ^� <br /> `The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible far their <br /> interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are sign i ficant(aged <br /> gasoline9), 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'),e)TPH pattern that does not appear to be derived from gasoline(9),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,i)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br />