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,y "1° a. <br /> McCAMPBELL ANALYTICAL INC. 110 2nd Avenue South, #D7,Pacheco, CA 94553 <br /> Tele:510-798-1620 Fax: 510-798-1622 <br /> • Advanced GeoEnvironmentaI,Inc. Client Project ID: Weldon Church Drill Date Sampled: 07/02/96 <br /> 1803 West March Lane, Suite A Date Received: 07/03/96 <br /> Stockton,CA 95207 Client Contact:Bill Little Date Extracted:07/03/96 <br /> Client P.O: Date Analyzed:07/03/96 <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 RW CB SF Bay Re ion method GCF1D(5030 <br /> lben- <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Eth zene Xylenes % Rec. <br /> Surrogate <br /> 66514 BMW1-10' S 1500,a 8.3 8.4 28 15 55 106 <br /> 66515 BMW2-5' S ND ND ND ND ND ND 106 <br /> 66516 BMW2-10' S ND ND ND ND ND ND 100 <br /> 66517 BMW3-5' S ND ND ND ND ND ND 101 <br /> Reporting Limit unless W 50 ug/L 5.0 0.5 0.5 0.5 0.5 <br /> otherwise stated;ND <br /> means not detected <br /> above the reporting limit S 1.0 mg/kg 0.05 0.005 0.005 0.005 0.005 <br /> water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,and all TCLP extracts in mg/L <br /> #cluttered chromatogram;sample peak coelutes with surrogate peak <br /> The following descriptions of the TPH chromatogram are cursory m nature and McCampbell Analytical is not <br /> responsible for their interpretation: a) unmodified or weakly modified gasoline is sigificant• b)heavier gasoline <br /> range compounds are significant(aged gasoline?);c)litrhterggasoline range compounds(the most mobile fraction) <br /> are si�iificant; d) �asoline range compounds having roadchromato aphic peaks are significant; biological <br /> )y <br /> altered gasoline?; e) TPH pattern that does not appear to be derived om gasoline (?); f) one to a few isolated <br /> peaks present;g)stronglyaged gasoline or dieselran a 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 l' Edward Hamilton,Lab Director <br />