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Sierra-Pacific Groundwater Consultants,"'Inc w tr Y <br /> h: <br /> Geologists, Engineers, and Compliance Specialists <br /> September 9, 1998- <br /> Ms. Wendy Wyels, SLIC Unit <br /> Central Valley - California Regional Water Quality Control Board <br /> 3443 Routier Road, Suite A <br /> Sacramento, California 95827-3098 <br /> Subject: Decommissioning Three Monitoring Wells at the Former PureGro Molasses Feed Product <br /> Facility, 2130 West Washington Street,Sierra Pacific Project No. 92-033 <br /> Dear Ms. Wyels: j <br /> You notified Unocal on September 2, 1998 that no further investigative or remediation work would be <br /> required by the California Regional Water Quality Control Board at the 2130 West Washington Street site <br /> provided.that ground-water conditions remain constant. <br /> Monitoring wells MW-3, MW-4, and MW-7 will be decommissioned to preclude the introduction of <br /> contaminants into the abandoned wells. The work will be done by a State-licensed C-57 drilling contractor <br /> in conformance with State and San Joaquin County guidelines for well abandonment. Sierra-Pacific will <br /> oversee the decommissioning. Unocal would prefer to initiate the work in October 1998. <br /> Please review the enclosed work plan. Call if you have any questions or directives. <br /> Sincerely, <br /> RRA-PACIFIC GROUNDWATER CONSULTANTS,INC. <br /> gortEpngineerinpga'.Geologist <br /> ehen Ek 33 <br /> JSR//jb <br /> Enclosure <br /> C. W.T.Nickerson, Unocal <br /> Jan Wagoner,Unocal <br /> �Nlike Infurna, San JoaquinrCounty <br /> Charlene Wall,Port of Stockton- <br /> Jack Holm, Westway <br /> John Killey, Sierra-Pacific <br /> �J 30 <br /> r <br /> (916)933-1468 <br /> 4911 Windplay Drive,Suite 4 EI Dorado Hills,California 95762 (916)933-3197 FAX <br />