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i <br /> 110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> Ibup//www mccamnhelI cpm E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Project 1D West Clay Properties Date Sampled 08/26-08127198 <br /> 4005 North Wilson Way Date Received 08/28/98 <br /> Stockton,CA 95205 Client Contact Kevin McKibben Date Extracted 08/28-09/01198 <br /> Client P O Date Analyzed 08/28-09/41198 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasohne*,with Methyl tert-Butyl Ether* & BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GCF1D(5030) <br /> I Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Eth zene en- Xylenes %Recovery <br /> enSurrogate <br /> 94282 MW6-30 S NO NO NO NO NO NO 98 <br /> I94283 MW6-45 S ND NO NO NO NO NO 97 <br /> 94284 MW7-20 S ND NO NO ND NO NO 98 <br /> 94285 MW7-25 S ND NO NO NO NO ND 97 <br /> 94286 MW7-30 S NO NO NO NO NO NO 99 <br /> 94287 MWS-30 S NO NO NO NO NO NO 99 <br /> 94288 MW8-45 S NO NO 0 012 NO NO 0 012 104 <br /> I <br /> Reporting Limit unless W 50 ug/L 5 0 0 5 0 5 05 0 5 <br /> otherwise stated,ND <br /> means not detected above S 10 mg/kg 005 0 005 0 005 0 005 0 005 <br /> the reporting limit <br /> •N;ater 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 TPH 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 /> gasoliner)), 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(1),f) <br /> �t one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant, h)lighter than water immiscible <br /> sheen rs present,i)liquid sample that contains greater than�5 vo] %sedimenF,1)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br /> I <br />