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110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Fax:510-798-1622 <br /> 16 <br /> ' Advanced GeoEnvironmental Client Project ID:Calkins Trucking Date Sampled:04/14/95 <br /> 1803 West March Lane, Ste. A Date Receiwd.04/18/95 <br /> ' Stockton,CA 95207 Client Contact:Bob Marty Date Extracted:04/18/95 <br /> Client P.O: Date Anal)wd: 04/18/95 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline*,i►ith BTEX* <br /> EPA methods 5030.modified 8015.and 8020 or 602:California RW CB SF Bay Reeion method GCF1D 5030 <br /> Lab ID Client ID Matrix TPH(g){ Benzene Toluene Etllben . <br /> Xylenes zene Surrogate <br /> ' 51728 5P1-1,2 S --- <br /> ND 0.014,e ND ND 100 <br /> 51729 SP2-1,2 S --- ND ND 0.005 0.035 98 <br /> 51730 SP2-3,4 S --- ND ND ND 0.018 101 <br /> 51731 SP3-1.2 S --- ND ND ND ND 89 <br /> 51732 SP3-3 4 S --- ND 0.032,e ND ND 87 <br /> 1 <br /> Reporting Limit unless other- W 50 ug/L 0.5 0.5 0.57 0.5 <br /> ' Mise stated;ND means not de- <br /> tected above the reporting limit S 1.0 mg/kg 0.005 0.005 0.005 0.005 <br /> ' * water and vapor samples are reported in ug/L., soil samples in mg/kg,and all TCLP extracts in mg/L <br /> 4 cluttered chromatogram;sample peak coelutes N�itli surrogate peak <br /> + The follouingdescri tions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not <br /> responsible for their interpretation:a) unmodified or weakly modified gasoline is significant;b) hea-,ler gasoline <br /> range compounds are slgn�cant(aged gasoline?);c) lig�h1tter asoline range compounds(the most mobile faction) <br /> are significant; d) asolgne range compounds ha�in Firoadgchromato aphic peaks are significant; biologicaIIN, <br /> altered gasoline?;e� Toluene is most likeley an artifact from tape used to seal the cores;f) one to a few isolated <br /> peaks present.g)strongIyagedgasoline or diesel range 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 Edward Hamilton,Lab Director <br />