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ERC discusses regional leachate treatment, reverse-osmosis option and long-term cost allocation
Summary
Committee members and staff discussed a proposal to use reverse osmosis and leachate recirculation at the Marathon County landfill as a regional service for neighboring counties, emphasizing the need for contractual protections, funding clarity and long-term liability allocation.
The Environmental Resources Committee on Sept. 2 considered a regional approach to controlling PFAS in landfill leachate that would center on a reverse-osmosis and concentrate-recirculation system at the Marathon County landfill.
Supervisor Robinson introduced the item, praising the Solid Waste Manager for proposing a regional system that could accept leachate from neighboring counties and use reverse osmosis to concentrate contaminants. Committee members, county administrator Lance Leonard, corp counsel and solid waste staff discussed tradeoffs: reverse osmosis concentrates PFAS into a small-volume concentrate that would be returned to the landfill cell for sequestration, not…
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