Kachess Drought Relief Pumping Plant
The Kachess Drought Relief Pumping Plant (KDRPP) is one of several potential surface-water supply projects being studied by the Bureau of Reclamation and the Washington State Department of Ecology (Ecology) to improve water resources management in the Yakima River basin. KDRPP is being developed under the Yakima River Basin Water Enhancement Project (YRBWEP) as part of the Yakima River Basin Integrated Water Resource Management Plan (Integrated Plan).
Previously referred to as the Kachess Reservoir inactive storage project, the proposed KDRPP could withdraw up to 200,000 acre-feet of inactive storage water below the reservoir’s existing outlet works. It would pump and transfer water into the Yakima River for appropriate distribution. KDRPP would operate only during a Washington State-declared drought with the goal of providing, when feasible, up to 70 percent water rights to proratable users. The KDRPP is proposed along with the Keechelus Reservoir-to-Kachess Reservoir Conveyance (KKC) project, which would help refill the Kachess Reservoir in the years following a drought in which KDRPP is used.
Since the proposed KDRPP and KKC projects are closely connected, Reclamation and Ecology prepared the Kachess Drought Relief Pumping Plant and Keechelus Reservoir-to-Kachess Reservoir Conveyance Draft Environmental Impact Statement (DEIS) as a single document. It includes environmental analyses for the both the KKC and KDRPP projects.
The DEIS was released to the public in January 2015 and described the no-action alternative and five action alternatives. The public comment period ended June 15, 2015.
Reclamation and Ecology have reviewed all comments on the DEIS, developed a floating pumping plant alternative, collected additional scientific data as necessary, and evaluated new findings. The new alternative and new findings have been documented in the Kachess Drought Relief Pumping Plant and Keechelus Reservoir-to-Kachess Reservoir Conveyance Supplemental Draft Environmental Impact Statement (SDEIS) released to the public April 13, 2018.
The SDEIS will not contain comment letters received on the DEIS; instead, letters and response to comments from both the DEIS and SDEIS will be in a final environmental impact statement.
Questions or comments on the SDEIS were accepted until July 11, 2018.
Reclamation and Ecology held two public meetings: May 16, 2018, in Cle Elum and May 17, 2018, in Ellensburg, where comments were accepted and the following poster displays, factsheet, and other documentation were available.
|SDEIS Public Meeting Materials PDF 10.33 mb|
|05/2006||Yakima River Basin Water Storage Alternatives Appraisal Assessment Technical Series No. TS-YSS-8 PDF 6.05 mb|
|10/1989||Appraisal Assessment of Augmenting Kachess Reservoir Stored Waters by Gravity Feed from Cabin Creek and Silver Creek PDF 10.78 mb|
|Additional Reference Documents >>|
|Washington State Department of Ecology|
Bureau of Reclamation
Pacific Northwest Region
Columbia-Cascades Area Office
1917 Marsh Road
Yakima, WA 98901-2058
Director, Office of Columbia River
State of Washington
Department of Ecology
15 W. Yakima Ave, Ste 200
Yakima, WA 98902-3452