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Public Notice: Proposed Discharge Permits for Federal Hydroelectric Projects in the Lower Columbia River

Publish Date: 03/18/2020


EPA is proposing to issue National Pollutant Discharge Elimination System (NPDES) permits for four hydroelectric generating facilities on the lower Columbia River operated by the United States Army Corps of Engineers:

  • Bonneville Project (WA0026778).
  • The Dalles Lock and Dam (WA0026701).
  • John Day Project (WA0026832).
  • McNary Lock and Dam (WA0026824).

These permits will address oil and grease discharges, pH, and cooling water discharges from hydroelectric generating facilities.

Related permits: Proposed Discharge Permits for Federal Hydroelectric Projects in the Lower Snake River.

Tentative Determination

The Region 10 office of the EPA has tentatively determined to issue discharge permits to the applicants.

Water Quality Certification

EPA requested final 401 certification from the Washington Department of Ecology on March 18, 2020.

Administrative Record

Electronic copies of the draft permits and technical fact sheet are available below under "Related Documents."

Copies and other information may be also requested by contacting Jennifer Wu (, 206-553-6328.

Because of COVID-19 response, there is no public access to the Region 10 EPA building at this time. Therefore, we cannot make hard copies available for viewing at our offices.

Disability Reasonable Accommodation

If you need a reasonable accommodation for a disability, please call Audrey Washington at 206-553-0523 (voice). TTY/TDD users please dial Washington Relay Service at 1-800-833-6388. Please provide one week advance notice for special requests not related to ongoing programs and services.

Applicants or Respondents

Bonneville Project
Exit 40, Interstate 84
Cascade Locks, OR 97014
The Dalles Lock and Dam
Exit 88, Interstate 84
The Dalles, OR 97058
John Day Project
Exit 109, Interstate 84
Rufus, OR 97050
McNary Lock and Dam
82925 DeVore Road
Umatilla, OR 97882

Related Documents

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