Illinois-American Water Company & Great River’s Land Trust
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Transcript of Illinois-American Water Company & Great River’s Land Trust
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Water Quality Trading – Point Source for Non-point Source Sediments:Piasa Creek Watershed Project
Illinois-American Water Company & Great River’s Land Trust
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Legend of the Piasa Bird
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Location of Alton IL
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Great River Road Scenic Highway
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“Old” Alton Water Treatment Facility
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“Wet” Alton Water Treatment Facility
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“New” Alton Water Treatment Facility
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The Challenge
Old facility
– Site specific exemption
– Non-standard NPDES permit
– Direct discharge allowed
– Exempt from TSS and total iron effluent standards
New facility
– “Old” regulatory relief does not apply
– Must apply for/justify new relief
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The Regulators
IL Pollution Control Board (IPCB)
– Writes environmental law
– Arbitrates contested issues
IL EPA
– Administers/enforces environmental law
– Writes/issues NPDES permit
– Cannot write a permit that IL law does not allow for
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The Stakeholders
Owner, Illinois-American Water Company
Regulators, IEPA, IPCB
Local Interest Groups (economic, aesthetic)
Environmental groups (local, state, national)
Customers
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The Study (SSIS)
Site Specific Impact Study
ENSR environmental engineers
Consider all regulatory tests (BPJ,BPT, BCT)
Compare residual management control technologies
Two Alternatives
– Lagoons, dewatering, landfilling
– Direct discharge
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The comparisonLagoon & Landfill
– $7.4 million capital costs, $0.42 million annual O&M
– Avg 4 trucks/day on Scenic Route 3
– 8,800 yd3/yr of landfill space
– Local Opposition
Direct Discharge
–No water quality impacts
–No landfill depletion
–No aesthetic impacts on area
–No cost
–No brainer (?)
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The Impacts
SSIS findings:
– TSS impact insignificant
– 91% of solids originate from river
– Metals nil (note reliance on PAS)
– No harm to aquatic life
– No unnatural buildup
– Mussel survey no problems
IEPA – nope!
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The Solution
Partnership with Great Rivers Land Trust (GRLT)
– Piasa Creek Watershed Plan
– Sustainable reduction in overall sediment loading to the Mississippi River
– IL-AWC contribution of $4.15 million over 10-year period
– Minimum 2:1 reduction (6600 ton/year)
Regulatory Approval
– IEPA, IPCB
– Adjusted Standard AS 99-6 written into IL law
– Terms of AS 99-6 and contract w/GRLT written into special conditions of NPDES permit
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Great Rivers Land Trust
Local Non-Profit Organization
Primary Mission:
– Preservation of scenic and ecologically valuable land along the Alton Lake Heritage Corridor, 20,000 acres
– Land preservation efforts accomplished through easements and land acquisitions
– Goal: 5,000 to 10,000 acres protected in next 10 years
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Piasa Creek Watershed Plan
Primary Objective:
– “To enhance and restore the natural non-point source pollutant mitigation functions of the watershed”
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Piasa Creek Watershed
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Watershed Major Problem Areas
Planning and Regulation
Sewage
Stormwater Runoff and Erosion
– Uncontrolled urbanization
– Sediment
– Road salts, fertilizers, pesticides
– Septic tank effluent
– Other pollutants
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Meeting the Objective
Land acquisition and conservation easements
Grassed waterways
Filter strips
Storm water detention basins
Terraces
Grade control structures
Stream bank stabilization
Educational programs (communities, schools, landowners)
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Project Timeline
Year 1 (2001): Update 1995 plan, identify potential sediment reduction sites, contact landowners.
Years 2-5: Install sediment control structures.
Year 6: IEPA review.
Years 6-10: Installation of sediment control structures continues. Achieve 2:1 suspended solids reduction.
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Project Metrics
Goal 6600 tons/year sediment reduction
Use accepted sediment control practices
Sediment savings estimated in partnership with SWCD
Revised Universal Soil Loss Equation
Resource inventory worksheets for each project
Projected year-end 2003: 2613 tons/year
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Streambank Erosion
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Streambank Stabilization
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Storm water basins
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Erosion control
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Boy Scout Lake
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The Benefits
Avoid capital and O&M $ for lagooning, landfilling
Rate impact on customer reduced
No sludge hauling trucks along the Great River Road
Save landfill space
Reduced net sediment load to the river
Precedent/model for other creative beneficial partnerships