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110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> 14 MCCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-1622 <br /> htti),//www,mccampbell.com E-mail:main@mccampbell.com <br /> Advanced GeoEnvironmental Client Project ID:USDB; Sears Date Sampled:06/03/98 <br /> 4005 North Wilson Way Date Received:06/04/98 <br /> Stockton,CA 95205 Client Contact:Bill Little Date Extracted: 06/04/98 <br /> Client P.O: Date Analyzed: 06/04/98 <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 GCF1D(5030) <br /> Lab ID Client ID Matrix TPH(g)' MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 90058 PI-15 S ND --- ND ND ND ND 94 <br /> 90059 PI-10 S ND --- ND ND ND ND 94 <br /> 90060 P2-10 S ND --- ND ND ND ND 94 <br /> 90061 P2-15 S ND --- ND ND ND ND 95 <br /> 90062 P3-5 S ND --- ND ND ND ND 92 <br /> 90063 P4-5 S ND --- ND ND ND ND 92 <br /> 90064 P5-10 S ND --- ND ND ND ND 97 <br /> 90065 P5-I5 S ND --- ND ND ND ND 92 <br /> 90066 P6-10 S ND --- ND ND ND ND 96 <br /> Reporting Limit unless err 50 ug/L 5.0 0.5 0.5 0.5 0.5 <br /> otherwise stated;ND <br /> means not detected above <br /> the 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(?);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 Z/I/ Edward Hamilton,Lab Director <br />