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KLEINFELDER <br /> File No. 20-3978-0LW10 <br /> July 26, 1997 <br /> 2. Kleinfelder does not recommend any further investigation or clean-up of the railroad spur <br /> locations. This does however exclude the apparently isolated area of high soluble lead. <br /> Kleinfelder recommends that this area of soluble lead concentrations which exceed the <br /> STLC-Regulated Level should be excavated and properly disposed of to improve property <br /> marketability. Confirmation soil samples using STLC-Lead analysis should be obtained to <br /> verify the adequacy of excavation (<5 µg/kg). However, Kleinfelder recommends that a <br /> copy of this report be submitted to the RWQCB and PHS/EHD for their review and <br /> comment. Additionally, Kleinfelder recommends that a letter of "no further action" be <br /> requested from both agencies. <br /> 3. The existing soil cuttings (a.k.a.... drilling returns) should be evaluated and properly disposed <br /> of by the client. Kleinfelder can assist the Atherton-Kirk in that disposal at the Client's <br /> request at an additional cost.. <br /> 4. The equipment rinseate should be properly evaluated and disposed of by Atherton Kirk <br /> Development. Kleinfelder can assist Atherton-Kirk in that disposal at the Client's request at <br /> an additional cost. <br /> 4.7 Orchard Area(File No. 20-3978-01.WR7) <br /> Based on the results of the subsurface assessment conducted in this area, Kleinfelder had the <br /> following recommendations detailed in our report "Limited Phase H Soil and Groundwater <br /> Assessment, Proposed 25 Acre Residential Development, (Phase I ESA Recommendation <br /> Number 1 and a portion of Phase I ESA Recommendation 13), Former Spreckels Sugar Plant No. <br /> 2, 18800 South Spreckels Road, Manteca, California, (APN # 221-180-04)" dated February 20, <br /> 1997: <br /> 1. The existing soil cuttings(a.k.a.... drilling returns) should be evaluated and properly disposed <br /> of by Atherton-Kirk.. Kleinfelder can assist the Atherton-Kirk in that disposal at the Client's <br /> request at an additional cost. <br /> 2. The equipment rinseate should be properly evaluated and disposed of by Atherton-Kirk. <br /> Kleinfelder can assist Atherton-Kirk in that disposal at the Client's request at an additional <br /> cost. <br /> 20-3978-01.W10/2017L 155 Page 23 of 50 Copyright 1997,Kleinfelder,Inc. <br />