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Tri-County Landfill


Tri-County Landfill Inc. has submitted a permit application for the construction and operation of a municipal waste landfill (Landfill) in Liberty and Pine Townships, Mercer County. Tri-County previously operated a landfill at this location that accepted waste between 1950 and 1990. It has been inactive since 1990. The permit will allow Tri-County to develop and operate new waste disposal areas within the 99-acre permit boundary of the old landfill. Waste in the unlined area of the old landfill would be excavated and relocated onto new lined disposal cells.

Public Hearing: Tri-County Landfill NPDES Permit Application - April 15, 2021

The Pennsylvania Department of Environmental Protection (DEP) held a virtual public hearing Thursday, April 15, 2021 at 6:00 PM to accept feedback on the National Pollutant Discharge Elimination System (NPDES) permit application submitted by Tri-County Landfill, Inc. Written comments of any length may also be provided to via email at, or via mail at the DEP Northwest Regional office, 230 Chestnut Street Meadville, PA 16335 no later than Friday, April 30, 2021.

The draft NPDES permit documents can be viewed below:

Resources and links

Permit Documents:


Additional Information:

Public Participation:

On October 16, 2019 a public hearing was held where members of the public were permitted to comment on the application. 25 Pa Code § 271.143(c) requires the Department to prepare a summary of the written and oral comments submitted during and following the hearing.