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Comment Period

Goldendale Pumped Storage Project

401 Water Quality Certification

Sept. 10, 2020 - Oct. 9, 2020, 11:59 p.m.

We invite you to review and comment on the Free Flow Power (FFP) Project 101, LLC Goldendale Pumped Storage Project 401 water quality certification application.

The company is requesting to perform work in waters of the United States near Goldendale. The proposed hydropower project is an off-stream, closed-loop pumped water storage system that will pump water from the Columbia River to an upper reservoir and be released downhill to a lower reservoir to create renewable energy.

It includes:

  • An underground water conveyance tunnel and powerhouse.
  • An over 2,400 feet of maximum gross elevation gain and involves no river or stream impoundments, allowing for water conveyance.
  • 115 and 500 kilovolt transmission lines.
  • An electrical substation/switchyard and other related facilities.

Our role in the process

Washington's water quality standards are often stricter than federal standards in order to protect aquatic species that make our waterways home, such as salmon. The Clean Water Act gives us the authority to make sure federal permits and licenses meet state standards.

We work with the Federal Energy Regulatory Commission licensing process for hydropower projects. We review federal projects and permits that expect to release (discharge) water into streams, lakes, wetlands, and other waterbodies that are defined as waters of the United States under federal law in Washington state.

See our 401 certifications webpage for more information.

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Comment by mail

Breean Zimmerman
1250 West Alder Street
Union Gap, WA 98903-0009
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Breean Zimmerman
Hydropower Projects Manager

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