Upper Wakarusa River WRAPS 9 Element Watershed Plan Overview Impairments to be addressed Directly addressing High Priority TMDLs for: Bacteria – Wakarusa River – Paulen Road Biology/Dissolved Oxygen – Wakarusa River – Paulen Road Biology/Sediment – Wakarusa River – Paulen Road Eutrophication – Clinton Reservoir Additionally, the Upper Wakarusa River WRAPS has a sediment reduction goal of 175,917 tons/yr in order to meet the life expectancy of Clinton Reservoir. Silver Lake Kiro Willard Grantville P erry Targeting Determinations Maple Hill Williamstown Lecompton Tecumseh Top ek a Cropland BMP Targeted areas were identified Big Springs Kanwaka Stull 102 701040108 Lawrence Pauline through SWAT (Soil and Water Assessment Dover Keene Forbes FieldB erry ton 102 70 1040103 Clinton Tool) modeling to determine areas of high 1027 01 040106 Auburn 10 2701040 104 Wa ka rus a overland runoff contributing sediment and 102701 040101 1 0270104 01 02 102701040105 10 2701040 107 nutrients to the watershed and Clinton Ca rb on da le Legend Harveyville Overbrook Reservoir. Scranton Upper Wakarusa Project Area HUC 12 Delineations Burlingam e Majo r Reservoirs County Boundary Cit ies and Towns Livestock BMP Targeted areas were identified Deer Creek M ich ig an Vall ey Rock Creek Elk Creek Vassar through analysis of aerial assessment data that Camp Creek Admire Osage City Lynn/Burys CreekMiller Lyndon Pom ona identified areas of high phosphorus runoff potential and the locations of existing bacteria impairments. Streambank Targeted areas were identified through GIS analyses of the main stem of the Upper Wakarusa River. Best Management Practices and Load Reduction Goals Best Management Practices (BMPs) to address phosphorus, sediment, and bacteria in the watershed were chosen by the SLT based on local acceptance/adoption rate and amount of load reduction gained per dollar spent. 175,917 tons of sediment must be reduced annually to Sediment Reducing Cropland/Riparian BMPs: achieve the life expectancy of Clinton Reservoir. Encouragement of Continuous No‐till 289,325 tons/yr 175,917 113,408 tons/yr sediment load tons/yr recommended Buffers into Clinton reduction in allowable Lake sediment sediment load Grassed Waterways required Tile outlet terraces and wetland retention Streambank Stabilization Streambank Restoration Phosphorus Reducing Cropland, Streambank and Livestock BMPs: Encouragement of Continuous No‐till 220,000 lbs of phosphorus must be reduced annually to achieve Tile outlet terraces and wetland retention High Priority Eutrophication TMDL for Clinton Reservoir. Buffers Grassed Waterways 220,000 lbs/yr 120,000 lbs/yr 340,000 lbs/yr reduction in phosphorous phosphorous phosphorous Streambank Stabilization allowed under load into Clinton required to the TMDL Vegetative filter strips between small Lake meet TMDL feeding operations and streams Relocation of small feeding operations away from streams Pasture fencing Promotion of alternative watering sites away from streams Low water crossings Implement rotational grazing practices Bacteria Reducing Livestock BMPs: Vegetative filter strips between small feeding operations and streams Relocation of small feeding operations away from streams Pasture fencing Promotion of alternative watering sites away from streams Low water crossings Implement rotational grazing practices UPPER WAKARUSA WATERSHED RESTORATION AND PROTECTION STRATEGY Nine Element Plan November 2011 TABLE OF CONTENTS Introduction ................................................................................................................................ 1 Background .............................................................................................................................. 1 Watershed Restoration and Protection Strategy (WRAPS) .................................................... 1 Geographic Setting ‐ HUC 8 ‐ 10270104, HUC 11 ‐ 10270104010 .............................................. 5 Clinton Lake ............................................................................................................................. 5 Watershed Characteristics ...................................................................................................... 6 Manmade Factors ................................................................................................................. 13 Element 1. Identification of causes of impairment and pollutant sources or groups of similar sources that need to be controlled to achieve needed load reductions, and any other goals identified in the watershed plan. .............................................................................................. 20 Causes of Impairments .......................................................................................................... 21 Pollutant Sources .................................................................................................................. 30 Element 2. An estimate of the load reductions expected from management measures. ...... 32 Load Reduction Requirements .............................................................................................. 32 Unit Load Reductions ............................................................................................................ 39 Element 3. A description of the non point source management measures that will need to be implemented to achieve load reductions and a description for the critical areas in which those measures will be needed to implement the plan. .......................................................... 42 Critical Areas for Implementation of Non Point Source Management Measures ................ 42 Description of Non Point Source Management Measures ................................................... 44 Land Use Assessment ............................................................................................................ 46 Element 4. Estimate of the amounts of technical and financial assistance needed, associated costs, and/or the sources and authorities that will be relied upon to implement this plan. .. 49 Technical Assistance to Implement Best Management Practices ........................................ 49 Projected Costs of Technical Assistance to Implement Best Management Practices .......... 50 Element 5. An information and education component used to enhance public understanding of the project and encourage their early and continued participation in selecting, designing, and implementing the nonpoint source management measures that will be implemented. 52 Information and Education Activities .................................................................................... 52 Resources Associated with Information and Education Activities ........................................ 53 Evaluation of Information and Education Activities ............................................................. 54 Technical Assistance and Costs for Watershed Assessment................................................. 55 Element 6. Schedule for Implementing the nonpoint source management measures identified in this plan that is reasonably expeditious ............................................................... 56 PAGE I Projected Load Reductions and Costs for Priority Areas Downstream of Paulen Road ....... 56 Opportunity Limitations .................................................................................................... 57 Recommended Level of Effort to Meet Load Reduction Requirements ........................... 61 Projected Load Reduction and Costs Upstream of Paulen Road .......................................... 62 Conservation Practices Needs Survey ............................................................................... 63 Stormwater Management Strategy to Meet Load Reduction Requirements for Clinton Lake ............................................................................................................................................... 67 Improved land management on croplands ........................................................................... 70 Annual Projections of Load Reduction and Costs ................................................................. 72 Element 7. A description of interim measurable milestones for determining whether nonpoint source management measures or other control actions are being implemented. 74 Water Quality Milestones to Determine Improvements ...................................................... 74 Water Quality Milestones for Upper Wakarusa River .......................................................... 74 Water Quality Milestones for Bacteria – Upper Wakarusa River ......................................... 76 Water Quality Milestones for Clinton Lake ........................................................................... 77 Additional Water Quality Indicators ..................................................................................... 78 Element 8. A set of criteria that can be used to determine whether loading reductions are being achieved over time and substantial progress is being made toward attaining water quality standards. ..................................................................................................................... 79 Comparing computed load reductions from all known BMPs over time ............................. 79 Progress in establishing County and Urban development criteria to control stormwater and protect vulnerable areas ......................................................................................................