PROPOSED TEMPORARY TURBIDITY INCREASE IN THE NORTH PLATTE RIVER IN CARBON COUNTY

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Wyoming Department of Environmental Quality

PROPOSED TEMPORARY TURBIDITY INCREASE IN THE NORTH PLATTE RIVER IN CARBON COUNTY

Ryan Ranches Inc. has requested a waiver from the Wyoming Department of Environmental Quality, Water Quality Division (WDEQ/WQD) for a temporary increase in turbidity in the North Platte River (Section 3; T16N, R83W) in Albany County. Activity in cold water streams is normally limited to a ten NTU increase over background.  Approval of this request would allow an exceedance of this limit for up to fifty working days, subject to monitoring and reporting. This activity will follow the procedures in Chapter 1, Section 23(c)(ii), of the WDEQ Water Quality Rules and Regulations, which allow for temporary elevated levels of turbidity in certain circumstances. An application for a 404 Permit from the U.S. Army Corps of Engineers (Corps) has not yet been submitted for this project, but an initial discussion with the Corps indicated that the project will be covered under a Nationwide 27 permit. Proposed activities involve bank stabilization and channel restoration of 1,500 feet of the North Platte River through the construction of a bankfull bench and rock vane.

Requests for related information and documents about the proposed temporary turbidity increase should be directed to Bret Callaway by email (bret.callaway@wyo.gov) or phone (307-777-5802).  Comments must be addressed to Bret Callaway, Wyoming DEQ/WQD, 200 West 17th  Street, 4th Floor, Cheyenne, WY 82002, and postmarked before 5:00 p.m. on June 26, 2018 (or faxed to 307-635-1784) to be considered. Phone or email comments will not be accepted.