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State of Ohio Environmental Protection Agency Division of Surface Water Total Maximum Daily Loads for the Little Beaver Creek Watershed Final Report August 17, 2005 Bob Taft, Governor Joseph P. Koncelik, Director CONTENTS TABLES .............................................................................. ii FIGURES..............................................................................iii ACKNOWLEDGMENTS ................................................................. iv ACRONYMS AND ABBREVIATIONS ..................................................... v 1.0 INTRODUCTION ................................................................... 1 2.0 IDENTIFICATION OF WATERBODY, POLLUTANT OF CONCERN, POLLUTANT SOURCES, AND PRIORITY RANKING ................................................. 6 2.1 Identification of Waterbody and Description of the Watershed .............................. 6 2.2 Previous Studies ................................................................. 11 2.3 Pollutants of Concern............................................................. 11 2.4 Pollutant Sources ................................................................ 12 2.5 Priority Ranking ................................................................. 13 3.0 DESCRIPTION OF WATER QUALITY STANDARDS, NUMERIC WATER QUALITY TARGETS, AND EXISTING WATER QUALITY ............................... 14 3.1 Biocriteria...................................................................... 14 3.2 Numeric Water Quality Targets ..................................................... 15 3.2.1 Total Phosphorus ............................................................ 16 3.2.2 Organic Enrichment/Dissolved Oxygen .......................................... 17 3.2.3 Ammonia.................................................................. 17 3.2.4 Fecal Coliform .............................................................. 18 3.2.5 Manganese................................................................. 19 3.2.6 Siltation ................................................................... 19 3.2.7 Total Dissolved Solids........................................................ 20 3.3 Existing Water Quality ............................................................ 21 3.3.1 Total Phosphorus ............................................................ 21 3.3.2 Ammonia.................................................................. 22 3.3.3 Siltation ................................................................... 22 3.3.4 Fecal Coliform .............................................................. 23 3.3.5 Manganese................................................................. 23 3.3.6 Total Dissolved Solids........................................................ 24 4.0TECHNICAL APPROACH........................................................... 25 4.1 The Generalized Watershed Loading Functions (GWLF) Model............................ 25 4.2 Load Duration Curve ............................................................. 26 4.3 GWLF Strengths and Weaknesses ................................................... 26 4.4 Load Duration Curve Strengths and Weaknesses ........................................ 27 4.5 Critical Conditions ............................................................... 27 5.0ALLOCATIONS.................................................................... 28 5.1 Total Phosphorus TMDLs .......................................................... 28 5.2 Ammonia TMDLs................................................................ 30 5.3 TDS TMDLs.................................................................... 30 5.4 Siltation TMDLs ................................................................. 31 5.5 Fecal Coliform TMDLs ........................................................... 32 5.5.1 Stone Mill Run .............................................................. 33 i 5.5.2 East Branch of the Middle Fork Little Beaver Creek ................................ 34 5.5.3 Brush Creek................................................................ 35 5.5.4 Little Beaver Creek, Leslie Run/East Palestine Area Streams .......................... 36 5.5.5 Honey Creek/New Middleton Area Streams....................................... 37 5.6 Summary....................................................................... 38 6.0 WASTELOAD ALLOCATIONS ....................................................... 39 7.0 MARGIN OF SAFETY .............................................................. 41 8.0 SEASONAL VARIATION ............................................................ 42 9.0 IMPLEMENTATION AND MONITORING .............................................. 43 9.1 Reasonable Assurances............................................................ 43 9.1.1. Minimum Elements of an Approvable Implementation Plan.......................... 43 9.1.1.1 Reasonable Assurances Summary ......................................... 43 9.1.1.2 Implementation Actions, Time line, and Reasonable Assurances ................. 44 9.1.2 Expected Effectiveness of Example Restoration Scenario ............................ 55 9.2 Process for Monitoring and Revision ................................................. 56 10.0 PUBLIC PARTICIPATION .......................................................... 57 LITERATURE CITED .................................................................. 58 APPENDIX A—Multi-Resolution Land Characteristics (MRLC) Consortium Data Description ........ A-1 APPENDIX B—Little Beaver Creek Attainment Table ........................................ B-1 APPENDIX C—Development of Watershed Loading Model.................................... C-1 APPENDIX D—Regression Analysis ...................................................... D-1 APPENDIX E—Fecal Coliform Data Used to Create Load Duration Curves ....................... E-1 APPENDIX F—Responsiveness Summary to Public Comments ..................................F-1 TABLES Table 1-1. Ohio 2002 Section 303(d) listing information for the Little Beaver Creek watershed ......... 3 Table 1-2. Ohio 2004 Section 303(d) listing information for the Little Beaver Creek watershed ......... 3 Table 1-3. Little Beaver Creek impairments addressed by the TMDLs in this report .................. 4 Table 2-1. State and Federal Wild and Scenic river designated areas for the Little Beaver Creek watershed.............................................................. 7 Table 2-2. Land use within the Little Beaver Creek watershed ................................... 8 Table 2-3. Industrial facilities and wastewater treatment plants in the Little Beaver Creek watershed .... 13 Table 3-1. Ohio water quality standards ................................................... 14 Table 3-2. Biological criteria for the protection of aquatic life that apply within the Little Beaver Creek watershed .................................................................. 15 Table 3-3. Statewide total phosphorus targets for Ohio rivers and streams ......................... 17 Table 3-4. Ohio’s numeric criteria for dissolved oxygen....................................... 17 Table 3-5. Fecal coliform and E. coli standards for Ohio ...................................... 18 Table 3-6. Total phosphorus data summary for Little Beaver Creek WWH headwater streams ......... 21 ii Table 3-7. Total phosphorus data summary for Little Beaver Creek WWH wadeable streams .......... 21 Table 3-8. Ammonia data summary for Little Beaver Creek streams ............................. 22 Table 3-9. Total suspended solids data summary for Little Beaver Creek streams ................... 22 Table 3-10. Fecal coliform data summary for Little Beaver Creek streams ......................... 23 Table 3-11. Manganese data summary for Patterson Run ....................................... 23 Table 3-12. Summary of Middle Fork Little Beaver Creek (Salem area) TDS data ................... 24 Table 5-1. Total phosphorus TMDL annual allocation summary table for the Little Beaver Creek watershed ............................................................. 29 Table 5-2. Ammonia TMDL annual allocation summary table for the Little Beaver Creek watershed . 30 Table 5-3. Sediment (siltation) TMDL annual allocation summary table for the Little Beaver Creek watershed .................................................................. 31 Table 5-4. Fecal coliform load duration analysis for Stone Mill Run ............................. 33 Table 5-5. Fecal coliform load duration analysis for East Branch ................................ 34 Table 5-6. Fecal coliform load duration analysis for Brush Creek ............................... 35 Table 5-7. Fecal coliform load duration analysis for Leslie Run ................................. 36 Table 5-8. Fecal coliform load duration analysis for Honey Creek ............................... 37 Table 5-9. Summary of TMDLs developed for the Little Beaver Creek watershed .................. 38 Table 6-1. Total phosphorus wasteload allocations for the NPDES facilities in the Little Beaver Creek watershed .................................................................. 39 Table 6-2. Ammonia wasteload allocations for the NPDES facilities in the Little Beaver Creek watershed 40 Table 9-1 Description of implementation actions and measures. ................................ 51 Table 9-2. Time line and reasonable assurances. ............................................. 53 Table 9-3. Time line: monitoring, tracking and implementation. ...............................