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Sierra-Pacific Groundwater Consultants, Inc. Y A <br /> Geologists, Engineers, and Compliance Specialists <br /> December 15, 1997 <br /> Wendy Cohen, P.E. <br /> Central Valley - Regional Water Quality Control Board <br /> 3443 Routier Road, Suite A <br /> Sacramento, California 95827-3098 <br /> Subject: Monitoring Well Decommissioning Work Plan, Cargill's Former Molasses Feed Product <br /> Facility, Port Road No. 8, Stockton, California; Sierra-Pacific Project No. 96-128.06 <br /> Dear Ms. Cohen: <br /> In response to Cargill's request for site closure, the Regional Water Quality Control Board (RWQCB) <br /> requested on June 3, 1997, that Cargill conduct an additional ground-water sampling event prior to closure. <br /> Sierra-Pacific Groundwater Consultants, Inc., on behalf of Cargill, completed the final event on August 20, <br /> 1997, and the report of results was sent to the RWQCB on September 11, 1997. The RWQCB issued a two- <br /> page letter on November 5, 1997 indicating that no further action is required at the Cargill site, and that the <br /> three existing monitoring wells may be decommissioned. <br /> A monitoring well decommissioning work plan is enclosed for your consideration. A copy has been sent <br /> to Mike Infurna with the necessary permit application. Woodward Drilling has been contracted to extract <br /> the old casings, overbore, and grout the three shallow monitoring wells. We would like to do the work on <br /> about January 6, 1998, if the plan and schedule are acceptable. <br /> Please call if you have any questions or directives. <br /> Sincerely, <br /> SIERRA-PACIFIC GROUNDWATER CONSULTANTS, INC. <br /> John.Stephen aCEG-1133 <br /> Senior Engineering Geologist <br /> JSR/EDC/jb <br /> Enclosure <br /> C. Gary Rimmey, Cargill <br /> ,Michael-InftifE,_San.Joam. <br /> quCounty <br /> Charlene Wall, Port of Stockton <br /> (916)933-1468 <br /> 4911 W indplay Drive,Suite 4 EI Dorado Hills,California 95762 (916)933-3197 FAX <br />