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The Wyoming Department of Environmental Quality (WDEQ) has received a request from the Nelson Engineering on behalf of the National Park Service for State certification of U.S. Army Corps of Engineers (USACE) Nationwide Permit #58, for the discharge of dredged or fill material to Cottonwood Creek in Grand Teton National Park, Wyoming. The purpose of the project is to construct a new water transmission pipe that crosses Cottonwood Creek. All waters within Grand Teton National Park are designated Outstanding Resource Waters where point source discharges are prohibited except for storm water and construction related discharges. This certification will require meeting the provisions in Chapter 1, Section 13 (a)(iii)(A) and (D), of the WDEQ Water Quality Rules and Regulations, which allows these discharges under certain circumstances. Proposed activities would result in trenching, installation of the new water transmission pipe and backfilling to restore existing grade and dimensions of Cottonwood Creek. To do this, approximately 1,960 cubic yards (CY) of native material will be excavated and redistributed as fill. No permanent impacts to wetlands are anticipated.
Requests for information about the proposed water quality certification should be directed to James Tarzon by email (james.tarzon1@wyo.gov) or phone (307-777-6701). Written comments must be addressed to James Tarzon, Wyoming DEQ/WQD, 200 W. 17th Street – 4TH floor, Cheyenne, WY, 82002, and be postmarked on or before 5:00 p.m. on April 15, 2026 to be considered. Electronic comments may only be submitted through and accepted by the Wyoming DEQ comment portal provided at https://wq.wyomingdeq.commentinput.com/. Phone comments will not be accepted.
Para español, visite deq.wyoming.gov. Americans with Disabilities Act: special assistance or alternative formats will be made available upon request for individuals with disabilities. Please provide at least fourteen (14) days before the close of the public comment period for such requests.
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