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PROPOSED TEMPORARY TURBIDITY INCREASE IN THE NORTH FORK SHOSHONE RIVER
The Wyoming Department of Environmental Quality (WDEQ) has received a request from Oftedal Construction, Inc. for a temporary increase in turbidity in the North Fork Shoshone River near Cody, Wyoming. The temporary increase in turbidity is associated with bank stabilization along U.S. Highway 14/16/20 at mileposts 12.2 and 21.9.
Activity in cold water streams like the North Fork Shoshone River is normally limited to a ten (10) NTU increase over background. Approval of this request would allow an exceedance of this limit for up to a combined fifty-six (56) total working days (28 days each at mileposts 12.2 and 21.9), subject to monitoring and reporting. Temporary cofferdams will be used to isolate the work areas from live water and minimize turbidity. This activity will follow the procedures in Chapter 1, Section 23(c)(ii), of the WDEQ Water Quality Rules, which allow for temporary elevated levels of turbidity in certain circumstances. The applicant has secured a U.S. Army Corps of Engineers 404 permit for the project.
Requests for information about the proposed temporary turbidity increase should be directed to Eric Hargett by email ([email protected]) or phone (307-777-6701). Written comments must be addressed to Eric Hargett, Wyoming DEQ/WQD, 200 W. 17th Street ? 4TH floor, Cheyenne, WY, 82002, and be postmarked on or before 5:00 p.m. on August 17, 2023 to be considered. Electronic comments may only be submitted through and accepted by the Wyoming DEQ comment portal provided at http://wq.wyomingdeq.commentinput.com/. Phone comments will not be accepted. Para espa?ol, visite deq.wyoming.gov.
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