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Determination of Significance, Switzler Reservoir Project

Publication number Date Published
18-12-012August 2018
VIEW NOW: Determination of Significance, Switzler Reservoir Project (Number of pages: 3) (Publication Size: 737KB)

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Author(s) SEPA Responsible Officials: G. Thomas Tebb, Mo-chi Lindblad, and Jerrod MacPherson
Description A determination of significance is a State Environmental Policy Act document which serves as a determination that a proposed project or action may have significant environmental impacts. It will be followed up with an environmental impact study.

To meet existing demands along with new instream and out-of-stream demands, a new Columbia River off-channel surface water storage reservoir would be constructed in
Switzler Canyon, with a peak storage capacity of approximately 44,000 acre-feet,
through construction of a concrete-faced rockfill dam approximately 325 feet in height. Water would be diverted from the Columbia River during periods when water is
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Keywords water supply, SEPA, SEPA DNS

State Environmental Policy Act Co-Lead Memorandom of Agreement for the Switzler Reservoir Project

State Environmental Policy Act Environmental Checklist for the Switzler Reservoir Project