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10 <br />C J <br />_0 <br />110 2nd Avenue South, #D7, Pacheco, CA 94553-5560 <br />McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />hn //www mccampbell com E-mail main@mccampbell corn <br />Advanced GeoEnvironinental <br />837 Shaw Road <br />Stockton, CA 95215 <br />Client Protect ID Tracy Dinner <br />Date Sampled 04/26/01 <br />Date Received 04/26/01 <br />Client Contact William Little <br />Date Extracted 04/26-04/27/01 <br />Client P O <br />Date Analyzed 04/26-04127/01 <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 <br />Client ID <br />Matrix <br />TPH(g)+ <br />MTBE <br />Benzene <br />Toluene <br />Ethyl- <br />benzene <br />Xylenes <br />% Recovery <br />Surrogate <br />66180 <br />MWI / <br />042501 <br />W <br />60,b <br />ND <br />ND <br />ND <br />ND <br />ND <br />102 <br />66181 <br />MW2 / <br />0425/01 <br />W <br />I6,000,a,h <br />ND<50 <br />280 <br />110 <br />550 <br />560 <br />106 <br />66182 <br />MW3 / <br />042501 <br />W <br />4300,a,h <br />ND <br />3 0 <br />3 4 <br />7 3 <br />13 <br />107 <br />66183 <br />MW4 / <br />042501 <br />W <br />S l,b <br />ND <br />ND <br />069 <br />ND <br />ND <br />105 <br />66184 <br />MW5 / <br />042501 <br />W <br />64,b <br />ND <br />ND <br />ND <br />ND <br />ND <br />104 <br />Reporting Limit unless <br />otherwise stated, ND <br />means not detected above <br />the repairing limit <br />W <br />50 ug/L <br />50 <br />0 5 <br />0 5 <br />05 <br />05 <br />S <br />1 0 mgft <br />0 OS <br />0 005 <br />0 005 <br />0 005 <br />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 <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 />gasolme9), 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'7, e) TPH pattern that does not appear to be derived fiffom 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 °!o sediment, }) no recognizable pattern <br />DHS Certification No 1644 <br />,—A— Edward Hamilton, Lab Director <br />