Delaware River WRAPS – 9 Element Watershed Plan Summary
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Delaware River WRAPS – 9 Element Watershed Plan Summary The Delaware River WRAPS 9 Element Plan will be The Delaware River WRAPS 9 Element Plan will be directly addressing the following impaired waters: positively affecting the following impaired waters: • Perry Lake (EU) • Delaware River near Mound (DO) • Perry Wildlife Area Wetland (EU, DO) • Elk Creek near Larkinburg • Delaware River above Perry Lake (Bacteria) • Grasshopper Creek near Muscotah (Atrazine) • Grasshopper Creek near Muscotah (TP) • Mission Lake (EU, Atrazine) • Grasshopper Creek (Bacteria) • Little Lake (EU) • Mission Lake (Silt) • Atchison Co. Park Lake (EU, Silt) • Sabetha (EU) Prioritized Critical Areas for Targeting BMPs Implementing BMPs in smaller targeted areas achieves th e end goals of water quality improvement of impaired waters in the most cost and time effective way. Delaware River WRAPS – 9 Element Watershed Plan Summary Targeting Considerations: • Cropland Targeted areas were identified after reviewing a SWAT model and a KDHE Cropland/Slope analysis. Landowner knowledge was also considered. • Livestock Targeted areas were identified after landowners in the watershed determined which areas had the largest number of uncertified animal operations. • Streambank targeted areas where identified based on several studies including the TWI 2008 stream channel morphology and a 2007 Geological Survey study . • Gully targeted areas where identified by a 2010 KWO study of gully erosion sites using GIS layers. Best Management Practices and Load Reduction Goal Cropland BMPs • Riparian Vegetative Buffers • Permanent Vegetation • Grassed Waterways • Retention Structures • No‐Till systems • Sub‐surface fertilizer application Livestock BMPs • Vegetative Filter Strip • RelocateLivestock feedlots & Feeding Pens • Relocate Pasture Feeding Sites • Alternative (Off‐Stream) Watering System • Rotational Grazing Systems Gully BMPs • Sediment basins • Diversions • Constructed Wetlands • Riparian Buffers Streambank BMPs • Willow Cuttings/ Native Vegetation • Bank Re‐shaping • Stone Toe Protection • Rock Vanes and Weirs DELAWARE RIVER WATERSHED RESTORATION AND PROTECTION STRATEGY NineElement Plan Supplement 8/30/2011 Delaware River Watershed Restoration and Protection Strategy (WRAPS) Marlene Bosworth, Coordinator Delaware River WRAPS is sponsored by the Glacial Hills Resource Conservation and Development Region, Inc. Gary Satter, Glacial Hills RC&D Executive Director Stakeholder Leadership Team: Bill Brannon, Pheasants Forever, Wildlife & Environment Member, Seneca Jennifer Delisle, Wildlife & Environment Member, Valley Falls Mary Fund, Landowner, Kansas Rural Center, Outreach Member, Goff Roy Hallauer, Landowner, Local Government Member, Holton William Hill, Landowner, Crop Production Member, Holton David Royer, Landowner, Public Water Supply Member, Arrington Marilyn Snider, Resident, Watershed District Member, Holton Melvin Steinlage, Conservation District Member, Seneca Luke Terry, Kickapoo Environmental Office, Kickapoo Nation Member, Horton David Zeit, Landowner, Livestock Production Member, Fairview Wayne Niehues Landowner, At‐Large Member, Goff Kansas Department of Health & Environment Project Officer: Amanda Reed, Environmental Scientist, Watershed Management Section Funding for development of this plan was provided by a U.S. Environmental Protection Agency CWA Section 319 grant through the Kansas Department of Health and Environment 2 | Page 3 | Page Contents Part 1: Introduction .................................................................................................................................... 13 1.1 Purpose of the Plan ........................................................................................................................... 13 1.2 Historical Background of Delaware River WRAPS ............................................................................. 13 1.3 Meeting EPA’s 9‐Element Requirements .......................................................................................... 14 1.4 Scope of Watershed Plan Update ..................................................................................................... 15 Part 2: Watershed Information .................................................................................................................. 16 2.1 Location ............................................................................................................................................. 16 2.2 Local Cities and Roads ....................................................................................................................... 16 2.3 Hydrology .......................................................................................................................................... 18 2.3.1 Hydrologic Unit Codes ................................................................................................................ 19 2.4 Special Aquatic Life Use Waters ........................................................................................................ 23 2.4.1 Muscotah Marsh, Atchison County ............................................................................................ 23 2.4.2 Perry Lake Reservoir, Jefferson County ..................................................................................... 24 2.5 Designated Uses ................................................................................................................................ 26 2.6 Land Cover ........................................................................................................................................ 30 2.6.1 Land Ownership ......................................................................................................................... 30 2.7 Point Sources in the Watershed ....................................................................................................... 32 2.7.1 Livestock Feeding Facilities ........................................................................................................ 32 2.7.1.a Confined Livestock Feeding Facilities .................................................................................. 32 2.7.1.b Unconfined Concentrated Livestock Areas ......................................................................... 32 2.7.2 NPDES Facilities .......................................................................................................................... 34 2.8 Public Water Supplies ....................................................................................................................... 36 2.9 Impaired Waters ............................................................................................................................... 41 2.9.1 The 303(d) List ............................................................................................................................ 41 2.9.2 Total Maximum Daily Loads (TMDL) .......................................................................................... 41 Part 3: Assessment of Water Resources and Targeting BMP Implementation ......................................... 47 3.1 Targeting for Sediment Load Reductions .......................................................................................... 48 3.1.1 Targeting Streambank Erosion Reduction Efforts ...................................................................... 48 3.1.1.a Assessment Data Supporting Selection of Streambank Targeted Area .............................. 48 3.1.1.b Streambank Targeted Area Description .............................................................................. 50 3.1.2 Targeting Cropland Erosion Reduction Efforts .......................................................................... 51 3.1.2.a Assessment Data Supporting Selection of Cropland Targeted Area ................................... 51 3.1.2.b Cropland Targeted Area Description .................................................................................. 52 3.1.3 Targeting Gully Erosion Reduction Efforts ................................................................................. 55 3.1.3.a Assessment Data Supporting Selection of Gullies Targeted Area ....................................... 55 3.1.3.b Gully Erosion Targeted Area Description ............................................................................ 55 3.2 Targeting for Nutrient and Bacteria Load Reductions ...................................................................... 55 3.2.1 Targeting Livestock Waste Reduction Efforts and Riparian Buffers .......................................... 57 3.2.1.b Selection of Riparian Buffer Targeted Area ........................................................................ 57 3.2.1.c Livestock Waste and Riparian Buffers Targeted Area Description ...................................... 58 4 | Page 3.4 Description of Best Management Practices (BMPs) Targeted for Implementation in the Delaware River Watershed ..................................................................................................................................... 60 3.4.1 Streambank Stabilization ........................................................................................................... 60 3.4.1.a Willow Cuttings and other Native Vegetation .................................................................... 60 3.4.1.b Bank Re‐shaping .................................................................................................................