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Missouri Closed Landfill Technical Assistance Project · 2015. 3. 23. · dumps • 1970-1975...
Transcript of Missouri Closed Landfill Technical Assistance Project · 2015. 3. 23. · dumps • 1970-1975...
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Missouri Closed Landfill Technical Assistance Project
Presenter:
Laurie A. Bobbitt, Technical Environmental Specialist, Compliance/Enforcement Section, Solid Waste Management Program
June 21, 2011
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USDA Grant Acknowledgement
This material is based upon work
supported under a grant by the
Rural Utilities Service, United States
Department of Agriculture.
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Acknowledgements
• Laurie A. Bobbitt, Project Manager
• Cecilia Campbell
• Dan Norris
• Ricardo Jones
• Jim Gross
• Ramona Huckstep
• Other SWMP & Regional Office Staff
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History
• 1970 – EPA mandated the closure of town dumps
• 1970-1975 – more than 550 town dumps were closed in Missouri
• 1972 – Missouri Solid Waste Management Law was passed
• 1974 – MDNR was created & took over the regulation of landfills
• 1987 – MDNR regulations were amended to require post-closure care & FAIs
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Need for Project
• Moving from dumps to landfills required a paradigm shift
• Poor site selection in cases
• First regulations required no FAIs or post-closure period, & few environmental control systems
• Lack of filed documentation
• Change of site ownership
• Abandoned sites; sites sold at tax sales, sometimes to unaware buyers
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Bottom Line
• For all these reasons, it is prudent to evaluate the present condition of these early landfills
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Grant Background
• Focus is on old, closed landfills in sparsely populated areas in Missouri
• Applied for in December 2009
• Awarded in Spring 2010
• Work on the project began October 1, 2010
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Purpose of the Grant
• Assess the condition of landfills
• Based on assessments, MDNR will work with owners and counties to:
–Discuss the findings
–Discuss the regulatory requirements
–Provide technical assistance and guidance
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Specifics of the Study• Completed
– Researched & compiled list of potential landfills to be assessed
– Selected 58 rural landfills
– Conducted 58 site assessments
• Ongoing
– Compiling results & writing reports
– Updating & creating guidance & educational materials
– Meeting with landfill owners
– Disseminating information
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What the Study Found
• Off-Site Concerns
–Methane Gas
–Leachate
• On-Site Challenges
–Maintenance
– Land Use
– Monitoring
– Public Safety
– Long-Term Stewardship
The common issues:
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Percent of Landfills with Deficienciesby Category
0.0%
10.0%
20.0%
30.0%
40.0%
50.0%
60.0%
70.0%
80.0%
90.0%
100.0%
Methane Leachate Maintenance Land Use Monitoring Safety LTS
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Methane Gas Migration
• This is the most dangerous problem at a landfill
• Occupied
structures
are the
biggest
concern
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Leachate
• What it is: water that has come become contaminated from contact with waste & seeps out of the landfill
• Threatens:
–Surface water
–Groundwater
–Domestic wells
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Lack of Maintenance
• Overgrown by Trees and Brush from Failure to Mow
• Subsidence & Ponding
• Erosion
• Poor Soil Cap
• Poor Vegetation
• Burning of Vegetative Cover
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Mowedlately??
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Lack of Maintenance (cont.)
• Leachate Outbreaks
• Failure to Maintain Environmental Control Systems
• Wells Not Properly Abandoned
• Damage by Owners
• Damage by Trespassers
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Grazing - cattle
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Grazing - horses
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Plowing- rowcrops
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Permitted area sold to utility for substation
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MonitoringDeficiencies
• Gas Wells
• Groundwater Monitoring Wells
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Ø
NO
DATA!!
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• Methane Gas Migration
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• Domestic wells within 300 feet of a landfill
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Long-Term Stewardship Issues
• Plat not filed
• Easement, notice & covenant not filed
• Site modified without prior approval
• Landfill sold without MDNR notification
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Selling a Landfill
The Missouri Solid Waste Management Law requires sellers to disclose early in the negotiation process:
- the presence of a landfill on the property
- maintenance requirements
- owner liabilities
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Buying a Landfill
• Contact the Solid Waste Management Program prior to any sale
• Learn:
- potential liabilities
- regulatory requirements
- maintenance & care guidelines
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Results Show
The need for:
–landfill owners to be informed
–landfills to be maintained
–activities on landfills to be controlled
–information to be passed to successive owners
–awareness of potential for landfill impacts to nearby properties
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What’s Next
• Compile reports
• Meet with landfill owners
• Follow up on
–Corrective Action needs
–Long-Term Stewardship needs
• Increase educational outreach
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Conclusions• Landfill age may or may not decrease on- or off-site impacts
• Size of the landfills may differ, but the issues/problems are similar
• When a landfill is “closed” it does not mean the owner can “walk away”
• Landfill upkeep and maintenance must continue until public safety concerns & environmental impacts are gone
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What Remains after Post-Closure
• Waste – metals, glass, plastics
• 10 CSR 80-2.030(3) – no person may
excavate, disrupt or remove any deposited
material from any…discontinued solid waste
disposal area without prior approval from
MDNR
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What Remains after Post-Closure (cont.)
• The responsibility to disclose the presence
of a landfill during a sale
• The requirements of the Federal Clean
Water Act & the Missouri Clean Water Law
• The civil liability for off-site impacts to
people & properties
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For Additional Information
Laurie A. Bobbitt
573-751-5401
http://dnr.mo.gov/env/swmp/
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Survey Assessment
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Discussion