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sem . HE _ :x z� <br /> WIN, <br /> a <br /> Excavation of Contaminated Soil October 26, 1989 <br /> Former Texaco Service Station, Manteca, California AGS 38053-2 <br /> analyses of tht samples indicated that no TPH as gasoline or BTEX were present at <br /> concentrations above detection limits established by the laboratory. in addition, <br /> conversations with personnel of Mobile Chem Labs indicate that no additional peaks were <br /> ,A observed on the chromatograms. The results of analyses of samples collected from the <br /> stockpiled soil are summarized in Table 2. Copies of the analytical reports are also <br /> attached. <br /> Based on the results of laboratory analyses, we recommend the soil be us::d as backfill in <br /> the excavation, compacted, and the excavated area be covers-ft with a relatively <br /> impermeably material [.e., asphalt or concrete) to reduce the likelihood of surface water <br /> infiltration. <br /> Signed copies of this letter report should be forwarded to Ms. Darlene Reuss of the San <br /> Joaquin County Public Health Services,P.O.Box 2009,Stockton, California 95201 and Mr. <br /> Gordon Lee Boggs of the California Regional Water Quality Control Board,Central Valley <br /> Region, 3443 Routier Road, Sacramento, California 95827-3098. <br /> Please call if you have any questions regarding this project. <br /> Sincerely, <br /> Applied GeoSystems <br /> FU Ge <br /> �pILEY� <br /> 40 Keith A. Romstad <br /> No.4313 Project Geologist <br /> OF <br /> at <br /> John B. Bobbitt <br /> R.G. 4313 <br /> Attachments: Site Vicinity Map (Plate P-1) <br /> Generalized Site Plan (Plate P-2) <br /> Tab!e 1, Results of Chemical Analyses of Sidewall Samples <br /> Table 2, 1'���ults of Chemical Analyses of Stockpiled Soil Samples <br /> - ----- — - ---- <br /> Chain-ol'Custody-Records-(7) <br /> Analytical Results (60) <br /> Chromatograms (6) . <br /> Awpiied 0e0Systems <br />