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I <br /> 110 2nd Avenue South,##D7,Pacheco,CA 94553-5560 <br /> 4MCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' hip.//www.mccampbell,com E-mail mam@mecampbell com <br />' Advanced GeoEnvironmental Client Project ID MBP-Mossdale Date Sampled 08/11/99 <br />' 4005 North Wilson Way Date Received 08/12/99 <br /> Stockton,CA 95205 Client Contact Bill Little Date Extracted 08/12-08/17199 <br />' Client P O Date Analyzed 08/12-08/17199 <br /> Gasoline Range(C&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)4' MTBE Benzene Toluene Ethylben Xylenes %Recovery <br /> -zen a Surrogate <br /> 17050-52 SPEX3A-C S I I00,g,1 ND<1 ND<O 050 34 14 79 103 <br /> 17053 SPEX2A-D S 3200,g NDX10 ND<O 50 25 54 330 104 <br />' 17053A EXEi-W S ND ND ND ND ND ND 95 <br /> I <br /> lie <br /> I <br /> I <br /> Reporting Limit unless W 50 ug/L so 05 05 05 05 <br /> otherwise stated,ND means <br /> not detected above the <br /> reporting limit S 1 0 mg/kg 005 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 in <br />' ug/L <br /> "cluttered chromatogram,sample peak coelutes with surrogate peak <br />' 'rhe 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 gasoline)), <br /> c) lighter gasoline range compounds (the most mobile fraction)are significant,d)gasoline range compounds having broad chromatographic <br /> Peaks are significant,biologically altered gasoline',e)TPH pattern that does not appear to be derived from gasoline(9),0 one to a few isolated <br /> peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water immiscible sheen is present,i)liquid <br /> sample that contains greater than—5 vol %sediment,j)no recognizable pattern <br /> DHS Certification No 1644 4 Edward Hamilton,Lab Director <br /> I ' <br />