WA Department of Ecology

Becca Conklin

MULTI COUNTIES

SW

201806404

DS/SCOPING

11/16/2018

12/14/2018

The Washington State Department of Ecology (Ecology) seeks comments on the scope of a draft Environmental Impact Statement (EIS). Ecology will consider comments on the scope while developing a draft EIS, which will evaluate potential environmental impacts of a short-term modification to adjust total dissolved gas (TDG) levels in the Columbia and Snake rivers. Ecology intends to act on requests from the Washington Department of Fish and Wildlife, the Columbia River Inter-Tribal Fish Commission, and a coalition of non-governmental organizations to further adjust its TDG criteria for dams that spill to aid fish passage. Adjusting TDG criteria to increase spill would be consistent with current recommendations from the Governor Jay Inslee's Southern Resident Killer Whale task force, may help harmonize water quality standards with Oregon, and could simplify the U.S. Army Corps of Engineers implementation of the spill program at its federal dams on the lower Snake and Columbia rivers.

Public comment period has been extended to December 14, 2018. Submit comments online at: http://ws.ecology.commentinput.com/?id=x2M6a Mail comments to: Becca Conklin Washington State Department of Ecology PO Box 47600 Olympia, WA 98504-7600

Address: Columbia River and Snake River

Washington State Department of Ecology