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M. Scott Mansholt - 3 - 16 August 2007 <br /> Chevron-US Can-Welty Road <br /> same time as MW-3 and 4. Include the plan and schedule with the upcoming workplan; <br /> and, <br /> • We concur that monitoring and sampling Western Farm Services well - WFSMW-1 can <br /> be discontinued based on two consecutive quarterly fuel fingerprint evaluations indicted <br /> the petroleum hydrocarbons reported contain refined product (BTEX) and are <br /> consistent with gasoline, not crude oil. <br /> SAIC is proposing to provide an additional soil and groundwater investigation workplan during <br /> the third quarter 2007 to further define the extent of petroleum hydrocarbon impacts. <br /> By 1 October 2407 please provide the workplan for an additional site investigation including a <br /> plan and schedule for addressing the tasks outlined above. <br /> If you have any questions or comments, please contact Dean Hubbard at (559) 445-5179. <br /> SHELTON R. GRAY C. DEAN HUBBARD <br /> Senior Engineering Geologist Engineering Geologist <br /> P.G. No. 6357 <br /> cc: Harlan Knoll, San Joaquin County EHD, Stockton <br /> Norm Hunter, Kentfield <br /> Lee Higgins, SAIC, San Ramon <br /> Mike Jenkins, SAIC, Oakland <br /> G0HIRIC ommon ChevOVPIUS Can Q207,Aug 07 <br />