Block Notice 7A-2 Temporary Use in North Utah County Draft Environmental Assessment June 2021 Joint Lead Agencies U.S. Department of the Interior, Central Utah Project Completion Act Office Central Utah Water Conservancy District Utah Reclamation Mitigation and Conservation Commission Cooperating Agency U.S. Bureau of Reclamation Responsible Officials Reed R. Murray U.S. Department of the Interior, CUPCA Office 302 East Lakeview Pkwy Provo, Utah 84606‐7317 Gene Shawcroft Central Utah Water Conservancy District 1426 East 750 North, Suite 400 Orem, Utah 84097‐5474 Mark Holden Utah Reclamation Mitigation and Conservation Commission 230 South 500 East, Suite 230 Salt Lake City, Utah 84102‐2045 For information, contact: Chris Elison Central Utah Water Conservancy District 1426 East 750 North, Suite 400 Orem, Utah 84097‐5474 (801) 226‐7166 [email protected] TABLE OF CONTENTS Table of Contents ............................................................................................................................. i List of Figures and Tables ................................................................................................................ iv Abbreviations and Acronyms ........................................................................................................... v Chapter 1: Purpose and Need ......................................................................................................... 1 1.1 Introduction ............................................................................................................................ 1 1.1.1 National Environmental Policy Act ............................................................................................... 1 1.1.2 Cooperating Agencies ................................................................................................................... 1 1.2 Project Background ................................................................................................................. 1 1.2.1 Joint Lead Agencies ...................................................................................................................... 1 1.2.2 Central Utah Project/Central Utah Project Completion Act ......................................................... 2 1.2.3 Utah Lake Drainage Basin Water Delivery System ....................................................................... 3 1.2.4 Central Water Project ................................................................................................................... 4 1.3 Proposed Action ...................................................................................................................... 7 1.3.1 Municipal and Industrial Temporary Use in North Utah County ................................................. 7 1.3.2 Potential Managed Aquifer Recharge Pilot Study ........................................................................ 9 1.3.3 Instream Flows for Temporary Use in the Lower Provo River ................................................... 18 1.4 Purpose and Need ................................................................................................................. 18 1.4.1 Purposes of the Proposed Project .............................................................................................. 18 1.4.2 Needs of the Proposed Project .................................................................................................. 19 1.5 Permits, Contracts, and Authorizations ................................................................................ 19 1.6 Related Projects and Documents ......................................................................................... 19 Chapter 2: Alternatives ................................................................................................................. 21 2.1 Introduction .......................................................................................................................... 21 2.2 No‐Action Alternative ........................................................................................................... 21 2.3 Proposed Action Alternative ................................................................................................. 21 2.3.1 Municipal and Industrial Temporary Use in North Utah County ............................................... 21 2.3.2 Potential Managed Aquifer Recharge Pilot Study ...................................................................... 22 2.3.3 Instream Flows for Temporary Use in the Lower Provo River ................................................... 22 Page i Block Notice 7A‐2 Temporary Use in North Utah County Draft Environmental Assessment Table of Contents and List of Figures and Tables June 2021 Chapter 3: Affected Environment and Environmental Consequences .......................................... 25 3.1 Introduction .......................................................................................................................... 25 3.1.1 Affected Environment ................................................................................................................ 25 3.1.2 Environmental Consequences .................................................................................................... 25 3.1.3 Resources Considered but Dismissed from Further Analysis ..................................................... 25 3.1.4 Resources Evaluated Further ..................................................................................................... 26 3.2 Aquatic Resources ................................................................................................................. 26 3.2.1 Affected Environment ................................................................................................................ 26 3.2.2 Environmental Consequences .................................................................................................... 28 3.3 Surface Water Resources ...................................................................................................... 30 3.3.1 Affected Environment ................................................................................................................ 30 3.3.2 Environmental Consequences .................................................................................................... 33 3.4 Wetlands ............................................................................................................................... 35 3.4.1 Affected Environment ................................................................................................................ 35 3.4.2 Environmental Consequences .................................................................................................... 36 3.5 Groundwater ......................................................................................................................... 37 3.5.1 Affected Environment ................................................................................................................ 37 3.5.2 Environmental Consequences .................................................................................................... 37 3.6 Floodplains ............................................................................................................................ 38 3.6.1 Affected Environment ................................................................................................................ 38 3.6.2 Environmental Consequences ..................................................................................................... 38 3.7 Threatened and Endangered Species ................................................................................... 39 3.7.1 Affected Environment ................................................................................................................ 40 3.7.2 Environmental Consequences .................................................................................................... 41 3.8 Recreation ............................................................................................................................. 42 3.8.1 Affected Environment ................................................................................................................ 42 3.8.2 Environmental Consequences .................................................................................................... 43 3.9 Visual Resources ................................................................................................................... 43 3.9.1 Affected Environment ................................................................................................................ 44 3.9.2 Environmental Consequences .................................................................................................... 44 3.10 Environmental Justice ........................................................................................................... 45 3.10.1 Affected Environment .............................................................................................................. 45 3.10.2 Environmental Consequences .................................................................................................. 45 Page ii Block Notice 7A‐2 Temporary Use in North Utah County Draft Environmental Assessment Table of Contents and List of Figures and Tables June 2021 3.11 Indian Trust Assets ...............................................................................................................