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Advanced , <br /> GeoEnvironmental , Inc . -= <br /> 26 March 2012 <br /> AGE-NC Project No. 99-0592 _ <br /> Mr. James Barton - CVRWQCB <br /> Central Valley Regional Water Quality Control Board I Z <br /> 11020 Sun Center Drive <br /> Rancho Cordova, California 95670 <br /> Subject: Well Destruction Work <br /> MOORE TRUCK LINES <br /> 3400 Newton Road, Stockton, California <br /> Dear Mr. Barton: <br /> At the request of Mr. Frank Moore Jr. of the former Moore Truck Lines, Advanced <br /> GeoEnvironmental, Inc. has prepared this work plan for the destruction of eight(8)ground <br /> water monitoring wells (MW-1 through MW-8) at 3400 Newton Road, Stockton, California <br /> (site). The site and the surrounding area are illustrated in Figure 1. Structures, soil borings, <br /> and monitoring well locations are illustrated in Figure 2. This work plan was prepared in <br /> accordance with Central Valley Regional Water Quality Control Board guidelines for the <br /> investigation of underground storage tank (UST) sites and letter dated 08 February 2012 <br /> and further in accordance with the San Joaquin County Department of Environmental <br /> Health (SJCEHD) Standards For Well Construction and Destruction. <br /> INTRODUCTION <br /> A total of eight(8)shallow ground water monitoring wells(MW-1 through MW-8) have been <br /> installed on-site as part of the ongoing subsurface investigation at the site. Based on <br /> results from historical investigations (soil and ground water sampling) wells MW-1 and <br /> MW-8 are the only wells installed at the site with significant reported petroleum <br /> hydrocarbon impact to either soil or ground water. Therefore, AGE proposes to over-drill <br /> wells MW-1 and MW-8 to one foot over the installed depth of the wells (62 feet below .fid 65 <br /> surface grade [bsg] for well MW-1 and 71 feet bsg for well MW-8). Further AGE proposes <br /> to pressure grout wells remaining, non-impacted wells, MW-2 through MW-7 (all installed <br /> to a depth of 75 et bsg: MW-2 and MW-3 or 7 feet bsg: remaining wells). <br /> � — <br /> ?Y1 w 11617 <br /> All wells, pressure grouted or over- riled, will be destroyed in accordance with the <br /> SJCEHD Standards For Well Construction and Destruction. <br /> 837 Shaw Read• Stockton,(.A 95 1 <br /> Telephone(209)467-1006 • Fax 13091 467-1 1 18 <br />