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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' hqp//www mccatnpbell com E-mail matn@mccampbell com <br /> • <br />' Advanced GeoEnvironmental Client Protect ID West Clay Properties Date Sampled 07/13/00 <br /> 4005 North Wilson Way Date Received 07/14/00 <br />' Stockton,CA 95205 Client Contact Tony Mtkacich Date Extracted 07114-07117100 <br /> Client P O Date Analyzed 07114-07117100 <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 13-000 Etz nem Xylenes ~o /%coag <br /> Surrogate <br /> 42941 <br /> MW-1/07- W 3100,a h NDS 10 650 14 210 87 110 <br /> 42942 MW-9/07 W 70,a 150 29 12 44 1 8 95 <br /> 13-00 <br /> 42943 MW-10107- W 690,a,h 28 48 6 8 19 85 --- <br /> 13-00 <br /> -13-00 <br /> 1 <br />' Reporting Limit unless W 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br />' the reporting limit <br /> *water and vapor samples are reported in ug/L.,wipe samples in ug/wipe,soil and sludge samples mmg/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's}, c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasohne9,e)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 %sedimrmj)no recognizable pattern <br /> DHS Certification No 1644 } Edward Hamilton,Lab Director <br /> 1 <br />