PROPOSED TEMPORARY TURBIDITY INCREASE IN THE SHOSHONE RIVER IN BIG HORN COUNTY

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Wyoming Department of Environmental Quality

PROPOSED TEMPORARY TURBIDITY INCREASE IN THE SHOSHONE RIVER IN BIG HORN COUNTY

The Merrit Energy Company has requested a waiver from the Wyoming Department of Environmental Quality, Water Quality Division (WDEQ/WQD) for a temporary increase in turbidity in the Shoshone River (Section 25; T56N, R97W) in Big Horn County. Activity in cold water streams 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 fifteen (15) 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 has been submitted for a 404 Permit from the U.S. Army Corps of Engineers for the project. Proposed activities include the installation of six jetties and rip-rap to stabilize the north bank of the river and provide cover to an exposed section of conduit.

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 October 31, 2018 (or faxed to 307-635-1784) to be considered. Phone or email comments will not be accepted.