Wyoming Stream Mitigation Procedure, version 2 (WSMP v2)

United States Army Corps of Engineers Omaha District Wyoming Regulatory Office WYOMING STREAM MITIGATION PROCEDURE Version 2 (WSMP v2) – July 2018 – Omaha District Acknowledgements Interagency Stream Technical Workgroup: Paige Wolken – Lead U.S. Army Corps of Engineers, Wyoming Regulatory Office Thomas Johnson U.S. Army Corps of Engineers, Wyoming Regulatory Office Julia McCarthy U.S. Environmental Protection Agency, Region 8 Aquatic Resources Protection and Accountability Unit Jeremy ZumBerge Wyoming Department of Environmental Quality, Water Quality Division Paul Dey Wyoming Game and Fish Department, Fish Division Reviewers: Mike Happold, Kevin Little and Mike Stanley, Wyoming Regulatory Office and Karen Lawrence, Omaha District Field Support and Analysis Updates and Revisions  WSMP v2, July 2018 – Updated regulatory direction for stream mitigation and restoration; debit and credit calculator applying ecological and administrative adjustment factors to functional lift and loss units measured using the Wyoming Stream Quantitative Tool (WSQT), a condition calculator tool developed for use in Wyoming.  WSMP, February 2013 – Regulatory direction for stream mitigation; debit and credit calculator based on functional loss and improvement assessed using existing qualitative methods.  This procedure was originally adapted from similar methodologies used in other Corps Districts that have been in effect for several years. The foundation document is based on the Montana Stream Mitigation Procedure as provided by Todd Tillinger and Christina Schroeder, USACE Montana Regulatory Office. The WSQT can be updated and revised as necessary in the future. United States Army Corps of Engineers Omaha District Wyoming Regulatory Office 2232 Dell Range Boulevard, Suite 210 Cheyenne Wyoming 82009 Ph. (307) 772-2300 - WSMP v2 2018 - 1 WYOMING STREAM MITIGATION PROCEDURE WSMP, Version 2 - July 2018- I. OVERVIEW A. Background The practice of using compensatory mitigation to minimize unav