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15 April 2009 <br /> Messrs Trommer and Larson Page 2 of 2 <br /> Annual Five-Year.Review Update Letters <br /> Various Sites t <br /> monitoring. To minimize costs, the EHD reduced the sampling requirements to four wells <br /> quarterly, four wells annually and 11 wells biennially. The EHD anticipates closure <br /> consideration for this site by the end of the year. <br /> 7500 Eleventh Street W., Tracy, CA. <br /> The CUF recommended in Revised 5-Year Review Summary Report, <br /> dated 05 March It <br /> 2009, that the EHD had directed the Responsible Party (RP) to conduct a health hazard <br /> assessment. The RP has recently obtained an access agreement with the down-gradient <br /> property owner to construct a cut-off trench to recover impacted groundwater and free <br /> product. The EHD plans to approve the associated work plan and will direct the health <br /> hazard assessment at that time. <br /> Questions or comments should be directed to Nuel C. Henderson, Jr. at (209) 468-5658. <br /> Sincerely, <br /> Nuel C. Henderson, Jr., PG MargareLagorio, REH <br /> Engineering Geologist Program Coordinator <br /> Annual 5-Year Review Comment Letter 041509.doc <br />