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110 2nd Avenue South,##137,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC. Telephone: 925-798-1620 Fax:925-798-1622 <br /> httt)://www.tnccampbell.com E-mail:[Hain@mccampbell.com <br /> 1 Advanced GeoEnviromnental Client Project ID: Hess Duboise Date Sampled: 04/12/01 <br /> 837 Shaw Road Date Received: 04/17/01 <br /> ' Stockton,CA 95215 Client Contact:Bill Little Date Extracted: 04/18.04/19/01 <br /> Client P,Q: Date Analyzed: 04/18-04/19/01 <br /> 1 Stoddard Solvent Range(C9-C12)Volatile Hydrocarbons as Stoddard Solvent* <br /> EPA methods 5030,modified 8015 <br /> ' Lab ID Client ID Matrix TPH(ss)+ %Recovery <br /> 1 1 Surrogate <br /> 65631 :°MWI W ND 105 <br /> 1 65632 0MW21 W 370,e 103 <br /> 65633 MW31 W I100,e 103 <br /> 1 65634 0MW41 W ND 102 <br /> 65635 0MW51 W ND 105 <br /> 1201 <br /> 65636 MW6 W ND <br /> 65637 OMW � W ND 118 <br /> M <br /> 1 <br /> 1 <br /> 1 <br /> ' Reporting Limit unless W 50 ug/L <br /> otherwise stated;ND <br /> means not detected above <br /> 1 the reporting limit S 1.0 mg/kg <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 cwelutes 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-arc significant(aged <br /> ' gasoline?); c) lighter gasoline range compounds (the most mobile &action) 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 <br /> (stoddard solvent?);f)one to a few isolated peaks present;g)strongly aged gasoline or diesel range compounds are significant;h)lighter <br /> than water immiscible 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 />