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Comment Period

Gas Transmission Northwest, near Wallula

Air Operating Permit renewal

Aug. 25, 2020 - Sept. 24, 2020, 11:59 p.m.

We are accepting written comments on the renewal of the Air Operating Permit for Gas Transmission Northwest's Natural Gas Compressor Station #8 near Wallula.

Para asistencia en español: preguntas@ecy.wa.gov

Ecology’s Air Quality Program is renewing the Air Operating Permit (AOP) for Gas Transmission Northwest, Natural Gas Compressor Station #8. GTN is located at 638 Lambdin Road, three miles east of Wallula Junction on U.S. Hwy. 12, near Wallula in Walla Walla County, and has a corporate address of 201 W. North River Drive, Suite 505, Spokane, WA 99201. We expect to approve the draft renewal permit and will accept written comments on this action through Sept. 24, 2020.

The emission units at the facility are three natural gas fired turbines used to impart energy to the natural gas pipeline and an emergency generator powered by natural gas. There are no new emission sources or increases in emissions from the facility's previous AOP.

View the draft permit documents:

See below for ways to comment. Comments submitted by email or by mail are equally considered.

Requests to hold a public hearing may be made within the comment period. The request must include the interest of the requestor and why a public hearing is warranted. If significant public interest exists, we may hold a hearing.

To learn if there are additional records for this project, contact Ecology’s Public Records Office

This notice was posted on Aug. 24, 2020.



Commercial and industrial businesses that emit large amounts of air pollution are required to get an air operating permit. An air operating permit is a master document that lists all of the air pollution requirements that apply to a business or industry. We issue these permits along with other clean air agencies in Washington.

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Brian Prisock, Air Quality
Washington Department of Ecology, Eastern Region
4601 N. Monroe St.
Spokane, WA 99205
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Brian Prisock
Air Quality Environmental Specialist

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