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Preliminary Postclosure Maintenance Plan <br /> Foothill Sanitary Landfill - Revision #1 May, 1994 <br /> VADOSE ZONE MONITORING <br /> It is assumed that there will be 5 lysimeter stations to be <br /> monitored. Based on the costs of vadose zone monitoring at another <br /> County landfill, costs will be as follows. No replacement cost is <br /> anticipated. <br /> 5. COST $12,000 <br /> FINAL COVER MAINTENANCE <br /> Costs will include materials, labor, and repair of final cover due <br /> to erosion, settling, or subsidence. It can be assumed that the <br /> cost for one equipment crew at $700 per day could do the necessary <br /> work in 2 weeks annually. Excess soils necessary for maintaining <br /> final grades will be generated during normal operations. They <br /> will be strategically stockpiled for use. The acquisition of soils <br /> will not be a cost factor for maintenance of final cover grades. <br /> 6. COST <br /> ($700 X 10) _ $7,000 <br /> MAINTAIN DRAINAGE SYSTEM <br /> Assuming 2 operators and two pieces of equipment for 12 days a year <br /> to keep ditches clear and some shaping at $700/day, the annual <br /> ,cost can be computed. <br /> 7 . COST <br /> ($700 X 12) _ $8,400 <br /> 6 <br />