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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 /> 64hhUp//www mccampbell com E-mail main@mccampbell com <br />' Advanced GeoEnvironmental Chent Project ID MBP-Mossdale Date Sampled 09/27-09128/00 <br /> 4005 North Wilson Way Date Received 10/03/00 <br />' Stockton, CA 95205 Chent Contact Bill Little Date Extracted 10/03-10/05/00 <br />' Chent P O Date Analyzed 10/03-10/06/00 <br /> Gasoline Range(C6-Cl2)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 /> t Lab M Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethen en- Xylenes %Recovery <br /> ze Surrogate <br /> 49308 MWI-15 S ND ND ND ND ND ND 104 <br />' 49309 MW 1-25 S ND ND ND ND ND ND 102 <br /> 49310 MW2-15 S 170,e ND<O 20 NIXO O1 040 026 044 99 <br />' 49311 MW2-25 S ND ND ND ND ND ND 106 <br />' 49312 MW3-15 S ND ND ND ND ND ND 100 <br /> 49313 MW3-25 S ND ND ND ND ND ND 106 <br />' 49314 MW4-l5 S ND ND ND ND ND ND 101 <br /> 49315 MW4-25 S ND ND ND ND ND ND 96 <br /> 493I6 MW5-15 S ND ND ND ND ND ND 101 <br /> 49317 MW5-20 S ND ND ND ND ND ND 104 <br /> 49318 MW5-25 S ND ND ND ND ND ND 99 <br /> Reporting Limit unless W 50 ug/L 50 0 5 0 5 05 05 <br /> otherwise stated,ND <br /> means not detected above 0 m 0 005 <br /> the reporting limit S 1 �g 0 05 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 SDLP extracts <br /> in ug/L <br /> I "cluttered chromatogram,sample peak coelutes with surrogate peak <br /> -Elie following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their <br /> I 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 <br /> • (stoddard solvent)) f)one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter <br /> than water immiscible 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 />