Operators of the Juniper Ridge Landfill said they are moving ahead with plans to treat landfill leachate for PFAS, but some advocates said that doesn't justify an expansion of the facility.

Jeff Ward, with Casella Waste Systems, which operates the state-owned landfill in Old Town, said it is assessing options to use foam fractionation to filter the leachate. The company uses the technology at a facility in Vermont and is working to scale up the process for Juniper Ridge.

Ward said Casella plans to file permits for the treatment system next year, and have it operational in 2027.

"We're getting to that point where we're confident in the technology, we understand it after utilizing it in Vermont and we're at a point now where we're ready to scale it into Maine," he said.

The state is requ

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