Lower Yakima River Geographic Response Plan (YAK-GRP)

Yakima River Photo

The Lower Yakima River GRP (YAK-GRP) will cover a 123.4-mile reach of the Yakima River from the I-82/US-12 Bridge in Richland at river mile 4.5 (bordering the Middle Columbia River McNary Pool GRP), to the Roza Diversion Dam at river mile 127.9. The Lower Yakima River passes through sections of Water Resource Inventory Areas 37, 38, and 39, borders the Yakama Nation, and impacts numerous local communities including: Pomona, East Selah, Selah, Fruitvale, Yakima, Terrace Heights, Union Gap, Wapato, Buena, Zillah, Granger, Satus, Sunnyside, Mabton, Grandview, Byron, Apricot, Prosser, North Prosser, Whitstran, Gibbon, Benton City, West Richland, and Richland. Oil pollution threats found within the planning area include: two power plants, over 100 miles of BNSF rail line along with other short lines, and oil storage tanks from agricultural/manufacturing sources, as well as risks associated with vehicle traffic on I-82 and other roadways. The Lower Yakima River is a new GRP.

View the Lower Yakima River GRP (June 2017) (PDF 26 MB)


Interim Updates

In between plan updates, GRP strategies are tested during drills and actual spill events. The results of these tests may require changes to certain response strategies, notification strategies, staging areas, or boat launch locations. Eventually, these changes will be fully incorporated into the plan. Until that time, please use the updated strategy and information sheets below in lieu of that provided for similarly numbered locations in the published plan.

No interim updates currently available



How to Comment

If you have any questions, suggestions for improvement, or find errors in this document, submit comments online at http://www.rrt10nwac.com/Comment, email to Ecology at GRPs@ecy.wa.gov, or forward your comments via U.S. Mail to the following agencies:

U.S. Environmental Protection Agency
Region 10
Office of Environmental Cleanup
1200 Sixth Avenue
Room ECL-116
Seattle, WA 98101

Washington State Department of Ecology
Spill Prevention, Preparedness, and Response (GRPs)
P.O. ox 47600
Olympia, WA 98504-7600