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110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-I622 <br />". ' h=://www.mcca, b� ell,com E-mail:main@mccampbell.com <br /> Advanced GeoEnvironmental Client Project ID: Shockey Trucking Date Sampled: 03/31/99 <br /> ' 4005 North Wilson Way Date Received: 04/01/99 <br /> Stockton,CA 95205 Client Contact: Bill Little Date Extracted: 04/02-04/05/99 <br /> Client P.O: Date Analyzed: 04/02-04/05/99 <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 /> 08362 MW-2/3-31-99 W ND ND ND ND ND ND 105 <br /> 08363 MW-313-31-99 W ND ND ND ND ND ND 107 <br /> ' 08364 MW-113-31-99 W 150,b ND ND 0.55 ND ND 101 <br /> ' 08365 MW-413-31-99 W 110,b,h ND 0.65 ND ND ND 101 <br /> 1 <br /> Reporting Limit unless W 50 ug/L 5.0 0.5 0.5 0.5 0.5 <br /> otherwise stated;ND means <br /> not detected above the <br /> reporting limit S 1.0 mg/kg 0.05 0.005 0.005 0.005 0.005 <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 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 /> 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(?);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;j)no recognizable pattern. <br /> DHS Certification No. 1644 Edward Hamilton,Lab Director <br />