The Oregon Department of Environmental Quality says it's taking enforcement action against the Coffin Butte landfill north of Corvallis.

The agency sent a pre-enforcement notice to the landfill’s owner, a subsidiary of Republic Services, last Thursday.

The letter describes poor physical covering at the landfill, and an undersized gas collection system. It also claims the company has excluded large portions of the site from emissions monitoring without proper justification.

"We reviewed reports going back to 2022, and we saw problems in every report," DEQ spokesperson Dylan Darling told KLCC.

The DEQ is now requesting more information from Republic Services about its gas wells and past emission leaks, while calling for corrective action.

By the beginning of next year, the agency want

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