Laserfiche WebLink
6/ - <br /> with a neat cement/bentonite grout to within approximately two feet of the ground. surface. <br /> The cuttings will be drummed and stored on site pending proper disposal. <br /> Monitoring wells MW2 and MW3 will be abandoned by filling each well casing and filter pack <br /> with a neat cement/bentonite grout. The grout will be emplaced by pressure grouting with a <br /> pressure-grouting tool. For protection of the seal at the land surface, a hole at least two feet in <br /> diameter will be excavated around the outside of each well casing to a depth;of approximately <br /> two feet below ground surface. The sealing material used,to seal the well will be allowed to <br /> spill over into the excavation, <br /> After the sealing material has set in each of the wells, the excavations will be filled to within <br /> approximately 3 inches of surface grade with an aggregate material and the ruining 3 inches. <br /> will be filled with asphalt patch to restore the site's appearance. <br /> Based upon well construction details and assuming the filter :pack for each well has an <br /> estimated porosity of 25% (Heath, R C., 1983), an estimated volume of approximately 42 <br /> gallons of grout will be used to abandon wells MW2 and MW3. Monitoring;well construction. <br /> data, soil boring logs, and grout volume calculations are attached. A permit application and <br /> ass(idii l fee(c,heek no 362}.are also attached. <br /> Report]Preparation <br /> Upon completion of the well destruction activities, a summary report will: be prepared for <br /> submittal to PHSIEHD, The report will include a description of all field.activities. <br /> All work described in this workplan will. be performed under the direction of a Califonaia <br /> Registered"Professional Engineer.- All work will be performed in.accordance with ATVs Site <br /> Safety Plan and Quality Control/Quality Assurance Plan on file with PHS/EM. <br /> j�:Si�te�ule <br /> ATC has tentatively scheduled field activities for July 6, 2000. Once approval-of-W&w.0—do ain <br /> has been received, ATC will confirm the schedule for drilling activities. ATC will notify: <br /> PHSlEHII at least 48 hours prior to beginning any field activities. The'summary reportwill be; <br /> submitted to PHSMHD approximately four to five weeks after the completion of field activities. <br /> 162588 WP:.1:20999: : <br />