Water Quality Management Plan for the Iowa Great Lakes Watershed
Total Page：16
File Type：pdf, Size：1020Kb
Dickinson County Clean Water Alliance East Okoboji Sunset (David Thoreson, Blue Water Studios) Water Quality Management Plan for the Iowa Great Lakes Watershed “The Marshlands that once sprawled over the prairie from the Illinois to the Athabasca are shrinking northward. Man cannot live by marsh alone; therefore, he must needs live marshless. Progress cannot abide that farmland and marshland, wild and tame, exist in mutual toleration and harmony.” (Leopold, 1949, p. 162) By: John H. Wills Revisions due in July 2022, 2027, 2032, 2037, 2042, 2047, and 2052 1 Welcome This document is intended to aid watershed groups in targeting watershed activities and practices to improve water quality. Planning serves as a road map for turning today’s problems into tomorrow’s solutions. Water quality improvement is a big task, and trying to tackle it all at once can be daunting. This Management Plan encourages a logical approach to implementation to ensure incremental progress is made within the framework of big picture goals for the watershed. This Management Plan does not contain an exhaustive list of management alternatives but rather a starting place. The table of contents provides an outline for what is covered in the document. Additionally, examples (hypothetical and/or from past plans) are cited for illustrative purposes. The more time and effort invested in watershed planning, the greater the chance of success. The planning pro- cess consists of fact-finding, analysis, and interpretation of information and trends concerning the local politi- cal, social, environmental, and economic aspects of the watershed. The planning process takes into considera- tion viable alternatives and their cost effectiveness to create recommendations to meet present and future needs in a comprehensive plan. Planning is a continuous process where progress and goals need to be revisited and revised at least every five years. The following are logos for contact resources and agencies used throughout the plan. Federal Agencies: State Agencies: Local Agencies and groups: 2 List of Acronyms/Abbreviations Term Acronym/Abbreviation Agricultural Environmental Management Plans AEM Best Management Practice BMP Colony Forming Unit CFU Chain Of Custody COC Cooperative Lakes Area Monitoring Project CLAMP Clean Water Alliance CWA County Conservation Board CCB Data Quality Objective DQO Department of Natural Resources DNR Dickinson County Conservation Board DCCB Dissolved Oxygen DO East Okoboji Beach EOB Environmental Protection Agency EPA Geographic Information System GIS Iowa Lakes Community College ILCC Iowa Department of Natural Resources IDNR Iowa Great Lakes Watershed IGLW Iowa Lakeside Laboratory ILL Iowa Watershed Improvement Review Board WIRB IOWATER Program IOWATER Nephelometric Turbidity Unit NTU Nitrate Nitrogen NO3-N Natural Resources Conservation Services NRCS Quality Assurance Coordinator QAC Quality Assurance Manual QAM Quality Assurance/Quality Control QA/QC Quality Assurance Project Plan QAPP Resource Conservation and Development RCD Resource Management Area RMA Relative Percent Difference RPD Relative Standard Deviation RSD Standard Operating Procedure SOP Standard Methods SM Soil and Water Conservation District SWCD STORage and RETrieval STORET Total Maximum Daily Load TMDL Total Phosphorus TP Total Suspended Solids TSS United States Department of Agriculture USDA University of Iowa Hygienic Laboratory UHL Watershed Management Plan WMP 3 Clean Water Alliance TABLE OF CONTENTS EXECUTIVE SUMMARY 10 INTRODUCTION 12 BEST MANAGEMENT PRACTICES 15 WATER MONITORING PLAN 18 PUBLIC OUTREACH 21 LOWER GAR LAKE WATERSHED 27 LOWER GAR (SPRING RUN) RMA 28 EAST LAKE OKOBOJI WATERSHED 39 EAST OKOBOJI BEACH RMA 40 ELINOR BEDELL STATE PARK RMA 48 WEST OKOBOJI LAKE WATERSHED 56 GARLOCK SLOUGH RMA 57 LAKESIDE LABS RMA 67 OKOBOJI VIEW RMA 75 LAZY LAGOON RMA 83 WELCH LAKE COMPLEX RMA 91 JEMMERSON SLOUGH RMA 99 CENTER LAKE WATERSHED 107 CENTER LAKE RMA 108 BIG SPIRIT LAKE WATERSHED 117 SANDBAR SLOUGH RMA 118 HALES SLOUGH RMA 128 REEDS RUN RMA 141 TEMPLAR PARK RMA 149 MARBLE/HOTTES LAKES WATERSHED 157 MARBLE AND HOTTES LAKES RMA 158 LITTLE SPIRIT LAKE WATERSHED 173 LITTLE SPIRIT LAKE RMA 174 LOON LAKE WATERSHED 182 LOON LAKE RMA 183 URBAN RMA 191 1000-FOOT LAKESHORE BUFFER ZONE 207 IMPLEMENTATION SCHEDULE 210 RESOURCE NEEDS 215 REFERENCES CITED 217 APPENDIX A: SOCIAL DYNAMICS ASSESSMENT 219 APPENDIX B: POTENTIAL FUNDING SOURCES 222 4 usda LIST OF TABLES Table 1: Lakes and their size 12 Table 2: Resource Management Areas of the Iowa Great Lakes 13 Table 3: Impairments of the Iowa Great Lakes 14 Table 4: Management Plan for Lower Gar Priority Area 29 Table 5: Management Plan for Lower Gar Non-Priority Area 30 Table 6: Wetland Restoration Priority for Lower Gar 32 Table 7: Management Plan for East Okoboji Beach Resource Management Area 41 Table 8: Wetland Restoration Priorities for East Okoboji RMA 43 Table 9: Management Plan for Elinor Bedell State Park RMA 49 Table 10: Wetland Restoration Priorities for Elinor Bedell State Park RMA 51 Table 11: Garlock Slough RMA Management Plan 59 Table 12: Wetland Restoration Priority Areas for Garlock Slough RMA 61 Table 13 Management Plan for Lakeside Labs RMA 68 Table 14: Wetland Restoration Priority for Lakeside Labs RMA 70 Table 15: Management Plan for Okoboji View RMA 76 Table 16: Wetland Restoration Priority for Okoboji View RMA 78 Table 17: Management Plan for Lazy Lagoon RMA 84 Table 18: Wetland Restoration Priority for Lazy Lagoon RMA 86 Table 19: Management Plan for Welch Lake RMA 92 Table 20: Wetland Restoration Priority for Welch Lake RMA 94 Table 21: Management Plan for Jemmerson Slough RMA 100 Table 22: Wetland Restoration Priority for Jemmerson Slough RMA 102 Table 23: Management Plan for Center Lake RMA 110 Table 24: Wetland Restoration Priority for Center Lake RMA 112 Table 25: Management Plan for Sandbar Slough RMA 120 Table 26: Wetland Restoration Priority for Sandbar Slough RMA 122 Table 27: Management Plan for Hales Slough RMA 130 Table 28: Wetland Restoration Priority for Hales Slough RMA 132 Table 29: Management Plan for Reeds Run RMA 142 Table 30: Wetland Restoration Priority for Reeds Run RMA 144 Table 31: Management Plan for Templar Park RMA 150 Table 32: Wetland Restoration Priority for Templar Park RMA 152 Table 33: Management Plan for Marble/Hottes RMA 160 Table 34: Wetland Restoration Priority for Marble/Hottes RMA 164 Table 35: Management Plan for Little Spirit Lake RMA 175 Table 36: Wetland Priority for Little Spirit Lake RMA 177 Table 37: Management Plan for Loon Lake RMA 184 Table 38: Wetland Priority for Loon Lake RMA 186 Table 39: Management Plan for Great Lakes Mall Urban RMA 192 Table 40: Management Plan for HWY 71 Urban RMA 193 Table 41: Management Plan for Polaris/Walmart Urban RMA 194 Table 42 Management Plan for Other (un-named) RMA 209 Table 43: IGL Implementation Plan 214 Table 44: Total Cost and Phosphorus Removal 216 5 usda LIST OF FIGURES Figure 1: Iowa Great Lakes Land Use Assessment (2017) 25 Figure 2: Iowa Great Lakes Resource Management Areas Identification 26 Figure 3: Lower Gar RMA 31 Figure 4: Lower Gar Target Priority Wetlands 33 Figure 5: Lower Gar Target Area Ephemeral Gullies 34 Figure 6: Lower Gar Target Row Crop Fields 35 Figure 7: Lower Gar, Target Slopes 36 Figure 8: Lower Gar, Non-priority Ephemeral Gullies 37 Figure 9: Lower Gar Non-priority Row Crop Fields 38 Figure 10: East Okoboji Beach Resource Management Area 42 Figure 11: East Okoboji Beach Priority Wetland Restoration Areas 44 Figure 12: East Okoboji Beach Target Ephemeral Gully Areas 45 Figure 13: East Okoboji Beach Target Row Crop Areas 46 Figure 14: East Okoboji Beach Priority Slope Areas 47 Figure 15: Elinor Bedell State Park Resource Management Area 50 Figure 16: Elinor Bedell State Park Priority Wetland Areas 52 Figure 17: Elinor Bedell State Park Priority Gully Areas 53 Figure 18: Elinor Bedell State Park Priority Row Crop Areas 54 Figure 19: Elinor Bedell State Park Priority Slope Areas 55 Figure 20: Garlock Slough Resource Management Area 60 Figure 21: Garlock Slough Priority Wetland Areas 62 Figure 22: Garlock Slough Priority Gully Areas 63 Figure 23: Garlock Slough Priority Row Crop Areas 64 Figure 24: Garlock Slough Priority Slope Areas 65 Figure 25: Garlock Slough Fish Barrier Location 66 Figure 26: Lakeside Lab Resource Management Area 69 Figure 27: Lakeside Lab Priority Wetland Areas 71 Figure 28: Lakeside Lab Priority Gully Areas 72 Figure 29: Lakeside Lab Priority Row Crop Areas 73 Figure 30: Lakeside Lab Priority Slope Areas 74 Figure 31: Okoboji View Resource Management Area 77 Figure 32: Okoboji View Priority Wetland Areas 79 Figure 33: Okoboji View Priority Gully Areas 80 Figure 34: Okoboji View Priority Row Crop Areas 81 Figure 35: Okoboji View Priority Slope Areas 82 Figure 36: Lazy Lagoon Resource Management Area 85 Figure 37: Lazy Lagoon Priority Wetland Areas 87 Figure 38: Lazy Lagoon Priority Gully Areas 88 Figure 39: Lazy Lagoon Priority Row Crop Areas 89 Figure 40: Lazy Lagoon Priority Slope Areas 90 Figure 41: Welch Lake Resource Management Area 93 Figure 42: Welch Lake Priority Wetland Areas 95 Figure 43: Welch Lake Priority Gully Areas 96 Figure 44: Welch Lake Priority Row Crop Areas 97 Figure 45: Welch Lake Priority Slope Areas 98 Figure 46: Jemmerson Slough Resource Management Area 101 Figure 47: Jemmerson Slough Priority Wetland Areas 103 6 usda LIST OF FIGURES Figure 48: Jemmerson Slough Priority Gully Areas 104 Figure 49: Jemmerson Slough Priority Row Crop Areas 105 Figure 50: