PROPOSED TEMPORARY TURBIDITY INCREASE IN MULTIPLE WATERBODIES IN CROOK, WESTON, NIOBRARA, GOSHEN, AND LARAMIE COUNTIES

Wyoming Department of Environmental Quality  | view as a webpage

Wyoming Department of Environmental Quality

PROPOSED TEMPORARY TURBIDITY INCREASE IN MULTIPLE WATERBODIES IN CROOK, WESTON, NIOBRARA, GOSHEN, AND LARAMIE COUNTIES

ONEOK Elk Creek Pipeline, LLC has requested a waiver from the Wyoming Department of Environmental Quality, Water Quality Division (WDEQ/WQD) for a temporary increase in turbidity in six minor waterbodies (<10 feet wide) and sixteen intermediate waterbodies (>10 feet to 100 feet wide) along an approximately 300-mile pipeline route (T12N – 58N, R62W) that runs through Crook, Weston, Niobrara, Goshen, and Laramie Counties near the eastern border of Wyoming. Activity in warm and cold water streams is normally limited to a fifteen and ten NTU increase over background levels, respectively. Approval of this request would allow an exceedance of this limit for up to five working days in minor waterbodies and up to ten working days in intermediate waterbodies, 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. Construction is expected to take place in Wyoming from August 2018 through December 2019.

To obtain a complete list of impacted waterbodies or other requests for related information and documents about the proposed temporary turbidity increase, please contact 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 July 5, 2018 (or faxed to 307-635-1784) to be considered. Phone or email comments will not be accepted.