Kachess Drought Relief Pumping Plant (Kachess Reservoir Inactive Storage Project)
The Bureau of Reclamation and Washington State Department of Ecology are conducting a feasibility study for the Kachess Drought Relief Pumping Plant (KDRPP) (formerly identified as Kachess Reservoir Inactive Storage Project) to examine the feasibility and acceptability of withdrawing an additional 200,000 acre-feet of water from Lake Kachess and transferring that flow into the Yakima River for beneficial downstream use in a drought year.
The KDRPP is one of several potential surface water supply projects being studied to improve water resources management in the Yakima basin being developed under the Yakima River Basin Water Enhancement Project (YRBWEP) Yakima River Basin Integrated Water Resource Management Plan (Integrated Plan). The purpose of the Integrated Plan is to provide additional water supply for agriculture and municipal and domestic uses as well as improving ecological conditions for fish. The Integrated Plan was developed under authority provided to Reclamation by under the 1979 YRBWEP Feasibility Study Authorization (Public Law 96-162, December 28, 1979); existing YRBWEP Act (P.L. 103-434, October 31, 1994, as amended by P.L. 105-62, October 13, 1997; and P.L. 106-372, October 27, 2000). The Integrated Plan, in effect, constitutes Phase 3 of YRBWEP.
The KDRPP Feasibility Study is being performed concurrently with the Keechelus-to-Kachess Conveyance (KKC) Project Feasibility Study. Each separate study will produce its own feasibility reports including a planning report, feasibility design report, and economics technical report. Due to the potential connectivity of the two projects, a single environmental impact statement (EIS) has been prepared, which includes environmental analyses for both proposed projects. In addtion to a No Action Alternative, five action alternatives are evaluated in the Draft EIS.
In January 2015, a Draft Environmental Impact Statement (EIS) for the Kachess Drought Relief Pumping Plant (KDRPP) and Keechelus Reservoir-to-Kachess Reservoir Conveyance (KKC) Projects was released and the public comment period ended March 10. After considering the comments contained in hundreds of letters from the public, Reclamation and Ecology are reopening the comment period for an additional 60 days. The new comment period ended June 15, 2015.
|04/2015||Update: Kachess Drought Relief Pumping Plant and Keechelus Reservoir to Kachess Reservoir Conveyance Projects PDF 151 kb|
|01/09/2015||Draft EIS for Kachess and Keechelus Projects Released HTML|
|11/2013||Kachess Drought Relief Pumping Plant Scoping Meeting HTML|
|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 >>|
(509) 575-5848 x203
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