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e 19449 Riverside Drive,Suite 230,Sonoma,California 95476 <br /> CO "Ill GA-ROVERS Telephone: 707.935.4850 Facsimile: 707.935.6649 <br /> &ASSOCIATES www.CRAworld.com <br /> August 14,2009 Reference No. 060222 <br /> [ �rE % <br /> Ms.Joanne Kimbrough AUG j P <br /> Machado Family Trust ENVIRONNIEN I I,itALTH <br /> 17529 W. Grant Line Road PERMIPSERVICES <br /> Tracy,California,95376 <br /> Dear Ms. Kimbrough: <br /> Re: Updated Property Access Notification <br /> Former Shell Central Valley Crude Oil Pipelines <br /> Neighborhood B <br /> Mountain House,Tracy,California <br /> SAP Code: 7102308 <br /> Incident No. 300780 <br /> Conestoga-Rovers & Associates (CRA) on behalf of Equilon Enterprises LLC dba Shell <br /> Oil Products US (Shell) is providing this letter as a subsequent notification to access your <br /> property located in Neighborhood B, Mountain House, California. Property access <br /> notification is being done pursuant to the July 7, 2006 access agreement between you <br /> and Shell. This notification updates CRA's March 24, 2009 notification with respect to <br /> implementing the field work for groundwater monitoring well installations as detailed <br /> in the Regional Water Quality Control Board (RWQCB) approved work plan, Subsurface <br /> Investigation Work Plan December 2008. <br /> The proposed scope of work is presented below: <br /> • Advance 19 borings for well installation to a depth of 35 feet below ground <br /> surface (ft bgs) <br /> • All well locations will be grouted in accordance with the San Joaquin County <br /> Environmental Health Department's permitting regulations. <br /> • All well locations will be surveyed. <br /> • All wells will be developed and sampled;sampling will be performed each <br /> calendar quarter for the next few years <br /> Equal <br /> Employment <br /> Opportunity Employer <br /> Worldwide Engineering, Environmental,Construction,and IT Services <br />