Office of Columbia River photo identifier

Office of Columbia River

photo of White Bluffs area of the Hanford Reach are of the Columbia River
Focusing in...

Delivering Water- As of January 1, 2015, the Department of Ecology‘s Office of Columbia River (OCR) has developed 375,815 acre-feet of new water supply at a cost of around $175 million dollars. That pencils out to about $465 per acre foot, an incredible bargain in a market where water typically sells for well over $1,500 per acre-foot.

How much water is that? 375,815 ac-ft of water is:

  • Equal to 587.21 of square miles covered with one foot of water.
  • Nearly the amount of water needed to supply the Seattle metro area’s domestic water needs for three years.
  • Almost twice the active storage capacity of Rimrock Reservoir.

Additionally, OCR funded projects to improve nearly 90 miles of stream habitat for endangered and threatened runs of salmon, steelhead, and bull trout.

OCR also led innovative integrated water supply planning processes in the Yakima, Walla Walla, and Wenatchee basins to solve serious long-term regional water supply problems. These efforts proved to be so successful, the US Department of Interior is using them as a model for addressing water supply problems throughout the west.


The Office of Columbia River (OCR) aggressively pursues development of water supplies to benefit both instream and out-of-stream uses. OCR does so by funding and coordinating storage, conservation, and transmission projects.

OverviewPROGRAM OVERVIEW: Learn more about why the Columbia River Program was established and what the Office Of Columbia River is working to achieve.

Priorities PROGRAM PRIORITIES: The Legislature set four major priorities for the program.

Projects and Funding WATER SUPPLY PROJECTS AND FUNDING: OCR is developing dozens of projects across Eastern Washington.

OverviewOCR OPERATIONS: OCR's operations staff conduct tasks ranging from technical assistance and enforcement to metering supervision, public involvement, and voluntary regional agreements.

Lake Roosevelt Incremental Storage ReleasesLEGISLATIVE REPORTS: Annual supply, quinquennial (every five years) demand forecast, Voluntary Regional Agreement, and other reports to the legislature.


Lake Roosevelt Incremental Storage ReleasesWEB TOOLS: Web tools to help you drill down into Columbia River water resource data.


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Condit Dam Final SSEIS


USGS Columbia Plateau Groundwater Availability Study

Water Conservation

WA Water Exchange

Climate Change & The Columbia River