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Home My WebLink About9226_ShotwellCDLF_C_PCC_EstimateUpdate_FID1895577_20240904Closure Cost Estimate Shotwell C&D Landfill Line Item Unit Quantity Unit Cost Total Engineering and Bidding Engineering Evaluations / Certification LS 1 $16,300 $16,300 Construction Documents LS 1 $109,000 $109,000 Bid Process LS 1 $15,700 $15,700 Mobilization Mobilization LS 1 $151,000 $151,000 Project Management Project Management LS 1 $52,000 $52,000 State Independent Construction Manager LS 1 $8,700 $8,700 Surveying CQA Certification LS 1 $31,700 $31,700 Contractor Surveying LS 1 $42,000 $42,000 Refuse Limit Survey LS 1 $5,800 $5,800 Quality Assurance Total CQA & Soil Permeability Testing Ac 41.7 $11,000 $458,700 Final Grade Prep Recompact and Grade Ac 41.7 $4,665 $194,531 Borrow Development Borrow Area Development LS 1 $20,000 $20,000 Borrow Reclamation LS 1 $20,000 $20,000 Erosion Control Temporary Grassing Ac 41.7 $2,500 $104,250 Permanent Grassing Ac 41.7 $3,000 $125,100 Rock Check Dams Ea 10 $1,500 $15,000 Haybale Check Dams Ea 8 $500 $4,000 Silt Fence LF 6,200 $6.00 $37,200 Slope Stabilization SY 50,450 $2.25 $113,513 Inlet Protection Ea 2 $500 $1,000 Clean Sediment Pond / Ditches LS 1 $50,000 $50,000 Construction Exit Ea 1 $5,400 $5,400 Marker Posts Ea 25 $150 $3,750 Final Cover System 18" Compacted Soil Liner CY 105,960 $10.81 $1,145,428 18" Erosion Layer CY 105,960 $8.83 $935,627 Cover System Storm Water Control Sideslope Berms / Drainage Swell LF 17,227 $42.00 $723,534 Downdrains LF 3,100 $100.00 $310,000 Downdrain Inlets Ea 65 $1,860 $120,900 Outlet Protection SY 370 $216 $79,920 Energy Dissipator Ea 7 $6,250 $43,750 Security Signs Ea 1 $250 $250 Improvements Final Disposal and Waste Cleanup LS 1 $140,000 $140,000 Passive Gas Vents Ea 72 $1,200 $86,400 Total C&D Closure Cost $5,170,451.40 Notes: 1. All costs shown include labor, materials, and equipment and are in 2024 dollars. 2. The cost estimate equals the cost of closing all open areas in Phases 1-6A (41.7 acres). Closure Costs will be adjusted as new areas are built and areas that have reached capacity are closed. 3. The site will be filled in sequential order. Costs assume the closure of 41.7 acres will occur in one event. 4. During the active life of the landfill, the owner and/or operator will annually adjust the closure cost for inflation. Annual Post -Closure Care Cost Estimate Shotwell C&D Landfill Line Item Unit Quantity Unit Cost Total Groundwater/Surface Water Monitoring System Semi -Annual Groundwater Monitoring Ea/Yr 2 $11,400 $22,800 Groundwater Well Maintenance Ea 1 $1,250 $1,250 Groundwater Well Abandonment Ea 0.3 $5,625 $1,688 Surface Water Monitoring Ea/Yr 2 $622 $1,244 Landfill Gas System Perimeter Gas Monitoring Ea/Yr 4 $1,815 $7,260 Gas Vent Maintenance Ea 1 $270 $270 Engineering Engineering LS 1 $2,600 $2,600 Engineering Inspections Ea 4 $3,500 $14,000 Landfill Maintenance Mowing Ac 49 $270 $13,230 Grassing / Landscaping Ac 2 $5,000 $10,000 Access Road Maintenance LF 30 $50.00 $1,500 Final Cap Repair LS 1 $15,000 $15,000 Sediment Basin Cleanout Ea 1 $5,500 $5,500 Storm Water Ditch Maintenance / Repair LF 250 $22.00 $5,500 Storm Water Structure Maintenance / Repair Ea 1 $3,300 $3,300 Other Surveying LS 1 $1,500 $1,500 Independent Construction Manager LS 1 $3,600 $3,600 Total Annual C&D Post -Closure Care Cost: $110,241.50 Total C&D Post -Closure Care Cost for 30 years: $3,307,245.00 Total C&D Closure and Post Closure Care Cost (30 Years): $8,477,696.40 Notes: 1. All costs shown include labor, materials, and equipment and are in 2024 dollars. These costs are estimated for all open areas in Phases 1-6A (41.7 acres) and the certified closed area (7.3 acres). Post -Closure Costs will be adjusted as new areas are built and areas that have reached capacity are closed. 2. Costs of groundwater monitoring based on current costs for these services. 3. During the active life of the landfill and during the post -closure care period, the owner and/or operator will annually adjust the post closure cost estimation for inflation and when additional phases are constructed or closed. Financial Assurance Worksheet Shotwell C&D Landfill Item Activity 2024 1 Closure Cost $ 5,170,451.40 2 Post -Closure Cost $ 3,307,245.00 3 PACA $ 1,280,728.57 Total Financial Assurance $ 9,758,424.97 Notes: 1. Potential Assessment and Corrective Action Annual Costs (PACA) for C&D Landfills provided by NCDEQ.