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110 2nd Avenue SoUK#D7,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-1622 <br /> http://www.Mgc_ E-mail:main@mccampbell.com <br /> Advanced GeoEnvironmental Client Project ID:RMB. Date Sampled: 04/12/01 <br /> 837 Shaw Road Date Received: 04/12/01 <br /> Stockton,CA 95215 Client Contact:Bob Marty Date Extracted: 04/12-04/16/01 <br /> Client P.O: Date Analyzed: 04/12-04/16/01 <br /> _ Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline* <br /> EPA methods 5030,modified 8015;California RWQCB(SF Bay Region)method GCFID(5030) _ <br /> Lab ID Client ID Matrix TPH(g)' %Recovery <br /> Surrogate <br /> 65329 T1-W S 77,g 91 <br /> 65330 T2-E S 350,a 105 <br /> 65331 T3-E S 4300,bj 99 <br /> 65332 D1-2.5' S 2.1,g 108 <br /> r <br /> 65333 D2-2.5' S 2.3,g 106 <br /> L 65334 WOI S ND 109 <br /> 65335 SPI-W S ND 104 <br /> V 65336 SPl-E S ND 103 <br /> r <br /> Reporting Limit unless W 50 ug/L <br /> otherwise stated;ND <br /> means not detected above S 1.0 mg/kg <br /> the reporting limit <br /> V "water and vapor samples are reported in ug/L,wipe samples in ug/mpe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in ug/L <br /> "cluttemd chromatogram;sample peak coelutes with surrogate peak <br /> r '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 /> 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?;e)TPH pattern that does not appear to be derived from gasoline(?);t) <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 Jiur Edward Hamilton,Lab Director <br />