Transfer Stations Sheri Praski Executive Director SWANA Northern - PowerPoint PPT Presentation

Transfer Stations Sheri Praski Executive Director SWANA Northern Lights Email: sheripraski@baudoux.ca

Transfer Station Operator Training Course 2017 Edition

What is a Transfer Station? • Waste Management Facility • Transfer from small to large vehicles • Multi-purpose facilities • Recycling • Composting • HHW

Purpose of Transfer Stations • Public waste drop-off facility • Efficient transport of collected municipal solid waste • Can provide recycling opportunities

Definition of a Transfer Station Saskatchewan A facility that is used to temporarily store solid waste prior to its transport to a treatment, recycling, recovery, or disposal facility.

Objectives for Operating a Transfer Station • Public service • Efficient and economical collection and transport of MSW • Environmental protection • Safe operations

Influencing Factors • Distance to disposal facilities • Need for local service • Waste volumes and types • Economics • Capital funding • Operating budget

What’s in the Waste? • Appliances • Food scraps • Cardboard • Diapers • Styrofoam • Toys • Wood • Furniture • Plastic

Municipal Solid Waste (MSW)

Seasonal Peaks 500 450 400 350 300 250 200 150 100 50 0

Waste Management Hierarchy

Transfer Station Options

Urban Collection Systems

Commercial Collection Systems

Rural Collection Systems

Collection of Recyclables

Tr Transfer Systems • Non-compaction systems • Compaction systems

Front End Container Systems • Simple • Low development cost • Public drop-off • Can dedicate containers (recycling) • Compaction transfer vehicle • Multi-facility routing

Roll-Off Container Systems • Drop-Box • Simple design • Low cost • Public drop-off facilities • Can dedicate containers for different materials • Non-compaction system • Single container routing

Compactor with Tilt-Frame Tr Truck • Powered hydraulic compactor systems • Public drop-off • Residential collection transfer • High compaction transfer • Single facility routing

Large Scale Compactor • Large urban setting • Residential and commercial customers • Long distance hauling • Storage on tip floor • Single facility routing

Loading Tr Transfer Vehicles • Differs with type of vehicle used • Some spillage of waste can be expected • Operators should be prepared to clean up spilled materials to maintain site cleanliness

Comparing Economics • Determine the need for a transfer station • Local service to the public • Economical transportation of waste to a landfill • Cost of direct haul vs. transfer haul • Amount of waste • Distance of travel

Planning • Waste volumes • Traffic routes • Haul distances • Service levels • Facility location(s)

Selection of Facility Type • For use as a public service facility, transfer of collected waste, or both • Type and number of collection vehicles using the facility • Type and volume of waste • Recycling operations • Future planning horizon

Siting Process • Social • Public involvement • Technical • Economic feasibility • Planning • Siting • Design • Operations plan • Environmental controls • Permitting • Local municipal development permits or zoning bylaws • Environmental applications or hearings • Permit conditions

Example

Saskatchewan Closure and WTS Example • Existing Trench fill landfill located near town. • Waste Streams – Municipal Solid Waste (MSW) and Construction and Demolition Waste (C&D). • Diversion programs – metals, appliances, concrete, wood, and yard waste. • Remaining approved airspace – estimated to be less than 1.5 years in June 2016. • Potential remaining airspace of the site – estimated to be up to 10 years.

Project Summary • Saskatchewan Ministry of Environment (MOE) letter dated 2016 indicated that the no additional trenches are to be constructed until an Environmental Site Assessment (ESA) and Corrective Action Plan (CAP) is submitted. • ESA, to be submitted by Jan. 2017, to include the following: • Site Suitability Assessment; • Groundwater Monitoring Plan; • Landfill Design Plan; and • Closure Plan.

Project Summary • Economic analysis undertaken to examine two options: ongoing landfill operation or closure and conversion of site to a Transfer Station.

Economic Analysis

Key Assumptions • Environmental Monitoring Plan - $5k • ESA / CAP - $55-75k • Landfill Management Plan - $45k • Closure / Post-Closure Plan - $30k • Transfer Station Design - $25k • Approvals - $10-20k

Key Assumptions (2016) • Transfer Station Cost - $60k + $20k site grading • Final Closure $875k ($125k x 7 years) • Site security for TS ($25k) • Expansion Cells ($40k per cell) with 2 years airspace each (does not meet MOE requirements) • Leachate collection and disposal • Increased landfill operational costs associated with engineered landfill operations

Financial Analyses • Develop Transfer Station and Close Landfill NPV -$4.6M • Operate landfill for 5 years, close landfill and develop Transfer Station NPV -$4.9M • Operate landfill for 10 years, close landfill and develop Transfer Station NPV -$5.1 M

Financial Analyses Risk elements: • Outcome of ESA may increase future landfill operational costs • Site may be deemed unsuitable • Leachate management costs undefined • TS level of service / capital and operating costs poorly defined Recommendation – Site closure and conversion to Transfer Station

2.2 meter retaining wall

2.2 M - $153,000 Component Cost Item Unit Price Quantity Units Estimated Cost Site Preparation Grading $ 3 4800 m 2 $ 14,400 Ramp/Retaining Wall Lock Block $ 300 120 ea $ 36,000 Fill $ 7 3800 m 3 $ 26,600 geogrid $ 10 1740 lump sum $ 17,400 Excavation $ 8 72 m 3 $ 576 Road Grade $ 7 700 m 2 $ 4,900 Gravel $ 15 600 m 2 $ 9,000 Incidental Wheel Stops $ 20 275 ea $ 5,500 Guard Rail $ 50 370 L.M. $ 18,500 Fencing/Gates Perimeter Fence $ 120 100 L.M. $ 12,000 Gate $ 2,500 1 ea $ 2,500 Signs Entrance $ 1,000 1 ea $ 1,000 Tip Area $ 500 4 ea $ 2,000 Surface Water Ditch - supply, place, compact, $ 30 50 L.M. $ 1,500 seed Management culverts $ 250 2 L.M. $ 500 $152,376

1.5M - $95,000 Component Cost Item Unit Price Quantity Units Estimated Cost m 2 Site Preparation Grading $ 3 4800 $ 14,400 Ramp/Retaining Wall Lock Block $ 300 52 ea $ 15,600 Wall m 3 Fill $ 7 1500 $ 10,500 geogrid $ 10 500 lump sum $ 5,000 m 3 Excavation $ 8 50 $ 400 Road Grade $ 6 700 m 2 $ 4,200 Gravel $ 15 600 m 2 $ 9,000 Incidental Wheel Stops $ 10 275 ea $ 2,750 Guard Rail $ 37 370 L.M. $ 13,690 Fencing/Gates Perimeter Fence $ 120 100 L.M. $ 12,000 Gate $ 2,500 1 ea $ 2,500 Signs Entrance $ 1,000 1 ea $ 1,000 Tip Area $ 500 4 ea $ 2,000 Surface Water Ditch - supply, place, compact, $ 30 50 L.M. $ 1,500 seed Management culverts $ 250 2 L.M. $ 500 $ 95,040

Sideload bin at grade

Side Load Bins – no retaining wall $50,000 Component Cost Item Unit Price Quantity Units Estimated Cost Site Preparation Grading $ 3 4800 m 2 $ 14,400 Ramp/Retaining Wall Lock Block $ 300 ea Fill $ 7 m 3 geogrid lump sum m 3 Excavation $ 8 m 2 Road Grade $ 7 700 $ 4,900 m 2 Gravel $ 5 600 $ 9,000 Incidental Wheel Stops $ 4 275 ea $ 1,100 Guard Rail Fencing/Gates Perimeter Fence $ 120 100 L.M. $ 12,000 Gate $ 2,500 1 ea $ 2,500 Signs Entrance $ 1,000 1 ea $ 1,000 Tip Area $ 500 4 ea $ 2,000 Surface Water Ditch - supply, place, $ 30 50 L.M. $ 1,500 compact, seed Management culverts $ 250 2 L.M. $ 500 $ 48,900

Financial Analyses • Recycling container: $ 10,000 • Storage Compounds: $ 45,000 • Attendant’s office: $ 45,000 • Compost Pad: • Plus retaining wall and bins for waste ($50K - $100K)

Summary • Transfer Station are an important part of waste management – they are used for post consumer products includes waste and recyclable materials • Cost of running a landfill in Saskatchewan is between $70 and $300 per tonne (higher cost for smaller landfills) • When a landfill is not an option for your community, a Transfer Station may be a good option.

Questions?