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` k19 KLEINFELDER <br /> File No. 52495.E01 <br /> March 8, 2005 <br /> L <br /> Mr. Chris Neudeck <br /> ` Kjeldsen, Sinnock, and Neudeck <br /> 711 N. Pershing Avenue <br /> Stockton, California 95203 <br /> 60 <br /> Subject: Report <br /> Limited Soil Assessment <br /> Silva Trucking Yard <br /> 8355 S. Manthey Road <br /> French Camp, California <br /> APN 193-170-28, 29 <br /> Dear Mr. Neudeck: <br /> In accordance with your request and authorization, Kleinfelder It s conducted limited soil <br /> ` sampling and analysis at the above-referenced subiect site. The results of our investigation are <br /> detailed in this report as follows. <br /> BACKGROUND <br /> Silva Trucking submitted an application (Site Approval Application No. PA-02-400) to the San <br /> Joaquin County Community Development Department (SJCCD) to utilize the subject property <br /> for truck trailer parking. On April 14, 2003 SJCCD granted conditional approval of the <br /> application. One of the conditions, issued from the San Joaquin County Environmental Health <br /> Department (EHD), required Silva Trucking to complete a Phase 11 Site Assessment to assess <br /> road base material and evaluate its' potential impacts to soil and groundwater. The road base at <br /> the site included crushed rock and roof tile (manufactured by Monier Life Tile), which was <br /> spread across the site. According to EHD, Monier brand concrete roof tiles have been noted as <br /> having leachable concentrations of Total Petroleum Hydrocarbons as referenced to Diesel (TPH- <br /> D). Additionally, Mr. Robert McClellon, Unit Supervisor of the EHD Solid Waste Division was <br /> contacted and said the EHD had concerns over potential chromium VI concentrations associated <br /> with the road base. <br /> ` Groundwater at the site is approximately 20 feet below the ground surface (bgs) according to the <br /> San Joaquin County Flood Control District (SJCFCD). <br /> L <br /> 52495.E01/ST05R268/FB:Iv Page I of <br /> L2005,Kleinfelder, Inc. March 8,2005 <br /> L KLEINFELDER 2825 East Myrtle Street,Stockton,CA 95205-4794 (209)948-1345 (209)948-0621 fax <br />