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1` <br /> 110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> MCCAWBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' J41 E-mail main@mccampbell com <br /> Advanced GeoEnvrromnental Client Project ID Chapin Date Sampled 08/31/98 <br /> 4005 North Wilson Way Date Received 09/01/98 <br /> ' Stockton,CA 95205 Client Contact Bill little Date Extracted 09/01/98 <br /> Client P O Date Analyzed 09/01/98 <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 /> zene <br /> Lab ID Client 1D Matrix TPH(g)+ MTBE Benzene Toluene Xylenes Surrogate <br /> 94426 Pre Pump Air 210,1 --- ND 063 072 3 4 100 <br /> 1 <br /> 1 <br /> ' Reporting Limit unless Air 50 ug/L 50 05 05 05 0 5 <br /> otherwise stated,ND <br /> ' means not detected above S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br /> the reporting hmtt <br /> *water and vapor samples are reported in ug/L,vape samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> ' <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 gasolme range compounds are significant(aged <br /> gasolme9), 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,r)liquid sample that contains greater than--5 vol %sediment,j)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />