|
Table 3-1
<br /> Annual Postclosure Maintenance Cost Estimate
<br /> Foothill Sanitary Landfill
<br /> San Joaquin County, California
<br /> Items Quantity Units Unit Cost Subtotals
<br /> COVER REPAIR
<br /> Soil (replace 1%of landfill cover soil) 43,431 CY $5 $217,155
<br /> Seeding and Mulching(5%of landfill surface) 34 ACRE $2,000 $67,300
<br /> Cover Repair Subtotal $284,455
<br /> LEACHATE COLLECTION
<br /> Operation, Maintenance, Disposal 1 LS $3,000 $3,000
<br /> Leachate Sampling 1 LS $2,500 $2,500
<br /> Leachate Analysis 1 LS $10,000 $10,000
<br /> Leachate Collection Systems Subtotal $15,500
<br /> PERIMETER LFG MONITORING
<br /> Soil gas Sampling 1 LS $5,200 $5,200
<br /> Soil Gas Analysis 1 LS $100,800 $100,800
<br /> Perimeter Monitoring Subtotal $106,000
<br /> LFG CONTROL SYSTEM
<br /> Maintenance and Operation 1 LS $1,100,000 $673,000
<br /> LFG System Subtotal $673,000
<br /> GROUNDWATER AND SURFACE WATER MONITORING
<br /> Groundwater and Surface Water Sampling 1 LS $8,000 $8,000
<br /> Analysis 1 LS $13,200 $13,200
<br /> Monitoring Well Maintenance 1 LS $1,000 $1,000
<br /> Groundwater and Surface Water Monitoring Subtotal $22,200
<br /> VADOSE ZONE MONITORING
<br /> Vadose zone sampling 1 LS $2500 $2,500
<br /> Analysis 1 LS $6,000 $6,000
<br /> Vadose Zone Monitoring Subtotal $8,500
<br /> OTHER
<br /> Inspections and Record Keeping 100 Hrs $70 $7,000
<br /> Other Subtotal $7,000
<br /> ESTIMATED POSTCLOSURE COST $1,116,655
<br /> CONTINGENCY(20%) $223,331
<br /> TOTAL ESTIMATED ANNUAL COST $1,339,986
<br /> TOTAL COST OVER 30 YEARS $40,199,568
<br /> CY=cubic yard
<br /> LS=lump sum
<br /> Estimate completed February 2005. All costs are in 2004 dollars.
<br /> Analytical costs are based on 2004 quarterly sampling constituents. 5 year'COCs are not included in the costs
<br /> LEACHATE COLLECTION- It is anticipated that each module will have a sump. Although, it is unlikely that leachate will
<br /> be present and sampled each quarter, it was assumed that there will be leachate in each sump each quarter.
<br /> LANDFILL GAS MONITORING-Based on existing contracts
<br /> LANDFILL GAS CONTROL-Based on existing contracts, prorated per acreage of final landfill.
<br /> GROUNDWATER AND SURFACE WATER MONITORING-Assume one technician samples 2 days per event. Assume
<br /> quarterly sampling for groundwater and bi-annual for surface water.
<br /> VADOSE ZONE SAMPLING-Assume 20 vadose zone samples will be collected. Assume it takes one technician 8 hours
<br /> to sample each quarter.
<br /> Foothill Sanitary Landfill Public Works/Solid Waste
<br /> Preliminary PCPM Plan County of San Joaquin-Revised April 28,2005
<br />
|