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p, 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> ® McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' h //www mccam bell corn E-mail main@mccampbell corn <br /> • Date Sampled 07/18/01 <br />' Advanced GeoEnvironmental Client Protect ID Chase Van Buren <br /> 837 Shaw Road Date Received 07/19/01 <br />' Stockton, CA 95215 Client Contact Paul Dotson Date Extracted 07/19/01 <br /> Client P O Date Analyzed 07/19/01 <br />' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasohne*,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 Ethyl- Xylenes %Recovery <br />' benzene Surrogate <br /> 72931 CVB-24hr W 120,000,a ND<200 4000 26,000 2200 19,000 98 <br /> Purge H2O <br /> 1 <br /> 1 <br /> Reporting Limit unless W 50 ug/L 50 05 05 Q 5 0 5 <br /> otherwise stated,ND <br /> means not detected above S 1 0 mg/kg 0 05 0 005 0 005 0 005 0 005 <br /> the repotting limit <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?,c)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,i)liquid sample that contains greater than—5 vol %sediment,l)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br />