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110 Second Avenue South,#137,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> htW.//www.mccampbell.com E-mail main@mccampbell corn <br /> • <br />' Advanced GeoEnvironmental Client Project ID Grant Line Gas Food Date Sampled 01/19/99 <br /> 4005 North Wilson Way Date Received 01/21/99 <br /> Stockton,CA 95205 Client Contact Bill Little Date Extracted 01/21/99 <br /> Client P O Date Analyzed 01121-01/22/99 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasolene*,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 I Client ID Matrix TPH(g)' MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br />' zene Surrogate <br /> 02111 BMW7-5 S ND ND ND ND ND ND 100 <br /> 02I12 BMW7-10 S ND ND ND ND ND ND 98 <br />' 02113 BMW7-15 S ND ND ND ND ND ND 100 <br />' 02114 BMW8-5 S ND ND ND ND ND ND 110 <br /> 02115 BMW8-10 S 5 7,g ND ND ND ND 0 015 102 <br /> I02116 BMW8-15 S ND ND ND ND ND ND 102 <br /> Reporting Limit unless W 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting]limitS 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br /> I <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 /> I <br />