Keechelus-to-Kachess Conveyance Project
The Bureau of Reclamation and Washington State Department of Ecology are conducting a feasibility study for the Keechelus-to-Kachess Conveyance (KKC) Project to examine the feasibility and acceptability of conveying water from the Keechelus Reservoir to Kachess Reservoir in order to reduce flows in the upper Yakima River for fish rearing and habitat, and to augment flows into Kachess Reservoir to improve the capability for refill in dry years.
The KKC Project is one of several potential structural and operation changes projects being analyzed to improve water resources management in the Yakima River basin. The Study is being performed 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 KKC Feasibility Study is being performed concurrently with the Kachess Drought Relief Pumping Plant (KDRPP) (formerly identified as Kachess Reservoir Inactive Storage) Feasibility Study. The KDRPP Feasibility Study involves analyses of accessing reservoir water currently stored below the elevation of the existing reservoir outlet works. 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 and includes site-specific environmental analysis for both proposed projects. In addition 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 reopened 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||Keechelus-to-Kachess Conveyance Project Scoping Meeting HTML|
|Washington State Department of Ecology|
(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