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Ms.Victoria McCartney,SJCEHD June 21,2013 <br /> Work Plan for Well Destruction Project No.2046-3250-01 <br /> Parkinson's I-5Arco, Stockton,California <br /> Page 2 <br /> be capped flush with the ground surface using concrete. The neat cement/cement grout <br /> seal will be placed in one continuous pour using a tremie. <br /> Monitoring well MW-6 was constructed inside a 9-inch diameter steel conductor casing <br /> installed in a 15-inch diameter boring. The well material inside the conductor casing will <br /> be removed using 8-inch diameter augers to a total depth of 64 feet bgs, and the hole <br /> sealed with neat cement/cement grout as described above. The area around the conductor <br /> casing will be excavated to approximately 3 feet bgs and approximately 27 inches <br /> diameter (12 inches larger than the 15-inch boring used to install the conductor). The <br /> steel conductor and surrounding cement seal will be cut off approximately 6 inches above <br /> the base of the excavation, and the excavation filled with at least one foot of neat <br /> cement/cement grout. <br /> Displaced groundwater will be captured and prevented from runoff. Displaced <br /> groundwater and drilling waste will be placed in drums and stored at the site pending <br /> disposal at an appropriately-licensed facility. Disposal characterization samples from the <br /> wastewater and drill cuttings will be analyzed according to disposal facility requirements. <br /> The drummed wastes will be transported by an appropriately-licensed contractor. Well <br /> boxes and concrete debris will be disposed of as construction debris. <br /> After receipt of laboratory reports and disposal certificates, Stratus will prepare a letter <br /> report for submittal to SJCEHD and GeoTracker. If you have any questions regarding <br /> this work plan, or the project in general, please contact Steve Carter by email at <br /> scarter a,stratusinc.net, or by telephone at(530) 676-6008. <br /> Sincerely, <br /> 5TRATU5 ENVIRONMENTAL, INC. <br /> NAL G <br /> �tvphen�.Cattcur <br /> Allan Dudding Stephen J. Carter, P.G. <br /> Staff Geologist Project Manager <br /> OF CA��� ► <br /> Attachments: Figure A-1 Site Location Map <br /> Figure A-2 Site Vicinity Map <br /> Table 1 Well Construction and Soil Boring Details <br /> Boring Logs and Well Construction Details <br /> cc: Mr. Wesley Parkinson, Owner <br /> KAParkinsons Hammer 1-5 Arco\Work Plans\well destruction WP.docx 5TRATU5 <br />