Stevens County Landfill, Kettle Falls

Stevens County Landfill submitted a notice of construction application to upgrade their gas collection flare system to a single larger unit. This was funded by a grant from Ecology. The landfill estimates the new system will improve gas capture efficiency to 75%, up from the current system's 50% capture efficiency. Based on the higher efficiency controls, this change is estimated to decrease emissions.

The facility is a municipal solid waste landfill located at 1257 Landfill Road, Kettle Falls, in Stevens County. The landfill started receiving municipal waste in the 1970s.

Document for review

• Steven County Landfill notice of construction application and associated documents

We determined this proposal satisfies the requirements of Chapter 173-400 WAC. We plan to approve the application. We will hold a public comment period on a draft air permit ("approval order") that includes this change if we receive a written request by October 16, 2025.

To request a public comment period, use one of the ways listed below.

To find out if there are more records for this project, contact our Public Records Office.

This notice was posted on October 1, 2025.

Background

A notice of construction permit is required before installing a new source of air pollution or modifying an existing source of air pollution. This permit is sometimes called a "pre-construction permit" because a business must have one before starting construction or operating their business.

A notice of construction air permit limits the amount of air pollutants a business can emit.