Lower Meramec River: Watershed Plan
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Water Quality, Green Infrastructure and Watershed Management for the FINAL Lower Meramec Watershed January 2012 PlP —from Pacific to Valley Park— This project and report was supported by a grant from the United States Environmental Protection Agency, Region 7 Lower Meramec Watershed Plan Water Quality, Green Infrastructure and Watershed Management for the Lower Meramec Watershed East-West Gateway Council of Governments January 2012 U.S. Environmental Protection Agency Region 7 through the Missouri Department of Natural Resources has provided partial funding for this project under the American Recovery and Reinvestment Act of 2009 and Section 604(b) of the Clean Water Act EWG fully complies with Title VI of the Civil Rights Act of 1964 and related statutes and regulations in all programs and activities. For more information, or to obtain a Title VI Complaint Form, see http://www.ewgateway.org or call (314) 421-4220. Table of Contents Section Page I. Executive Summary 1 II. Characterize the Watershed (Element A) 5 A. Study Area Overview and Description 5 B. Socio-Economic 10 C. Land Use 15 D. Wastewater Treatment 16 E. Individual Sewage Disposal Systems 16 F. Hydrologic Soil Group Classification 18 G. Geology 21 H. Cultural Resources 23 I. Conservation Opportunity Areas 24 J. Water Quality Sampling and Biological Assessments 27 1. Water Quality Sampling 27 a. Volunteer Monitoring Efforts 27 b. Government/Sewer District Water Quality Monitoring 30 2. Impaired Streams 34 3. Biological Assessments 37 a. Aquatic Biodiversity 39 b. Threatened or Endangered Species 40 K. Pollutant Loadings 45 III. Meramec Tributary Watersheds Goals and Solutions (Element B, C, D, F, G, H, I) 49 A. Goals and Management Objectives 49 B. Critical Land Use Areas for Project Implementation 49 C. Management Measures to Achieve Goals-Planning and Education 50 D Discussion of Stormwater Management Proposed Projects-St. Louis 52 County Department of Parks E Discussion of Recommendations from Division of State Parks, Missouri Department of Natural Resources 54 F Metrics 54 G Best Management Practices, Timing and Monitoring Recommendations 58 H Long-Term (20-year) BMP Implementation Strategy 68 I Technical and Financial Assistance 72 IV. Watershed and Subwatersheds Problems and Solutions (Element A, C, F, G, H) 79 A. Brush Creek Watershed 79 B. Fox Creek Watershed 90 C. LaBarque Creek Watershed 101 D. Hamilton Creek Watershed 113 E. Grand Glaize Creek Watershed 124 F Recommended Actions by Watershed 135 V. Lower Meramec Watershed Public Involvement Plan (Element E) 139 List of Tables Table Page 1. Lower Meramec River Watersheds 7 2. Incorporated Land in Lower Meramec River Study Area 8 3. 2010 Population by Watershed 10 4. 1990-2010 Population by Watershed 11 5. Median Household Income by Watershed 11 6. Land Use Lower Meramec River Study Area 15 7. 1990 Sewer Service by Watershed 16 8. Lower Meramec River Study Area Hydrologic Soil Groups by 19 Watershed 9. Conservation Opportunity Areas 25 10. Stream Teams in Lower Meramec River Study Area 27 11. Stream Team Meramec River Sites 29 12. Meramec River Sample Sites 32 13. Tributary Streams Raw Water Grab Sample Sites 33 14. Total Maximum Daily Load (TMDL) Development Schedule 36 15. Fox Creek Macroinvertebrate Stream Condition Index Score 38 16. Federally Identified Threatened, Endangered, Proposed Candidate 42 Species Franklin County, Missouri 17. Federally Identified Threatened, Endangered, Proposed Candidate 43 Species Jefferson County, Missouri 18. Federally Identified Threatened, Endangered, Proposed Candidate 44 Species St. Louis County, Missouri 19. Lower Meramec River Study Area Annual Pollutant Loads 46 20. Best Management Practices – Pollutant Removal Efficiencies 60 21. Best Management Practices – Installation Costs Estimates 63 22. BMP Package 68 23. BMP Package Pollution Removal Efficiencies 69 24. Watershed Estimated BMP Load Reduction 70 25. Grants and Funding Opportunities 76 26. Brush Creek Watershed Hydrologic Soil Groups 80 27. Brush Creek Watershed Land Use 81 28. Brush Creek Watershed Public Drinking Water Systems 84 29. Fox Creek Watershed Hydrologic Soil Groups 91 30. Fox Creek Watershed Land Use 92 31. Fox Creek Watershed Public Drinking Water Systems 94 32. LaBarque Creek Watershed Hydrologic Soil Groups 102 33. LaBarque Creek Watershed Land Use 103 34. LaBarque Creek Watershed Public Drinking Water Systems 106 35. Hamilton Creek Watershed Hydrologic Soil Groups 114 36. Hamilton Creek Watershed Land Use 115 37. Hamilton Creek Watershed Public Drinking Water Systems 118 38. Grand Glaize Creek Watershed Hydrologic Soil Groups 125 39. Grand Glaize Creek Watershed Land Use 126 List of Tables - Continued Table Page 40. Grand Glaize Creek Watershed Public Drinking Water Systems 123 41. Pollution Problems and Recommended Actions by Watershed 136 List of Figures Figure Page 1. Fish Diversity in Meramec River Streams 40 List of Maps Map Page 1. Lower Meramec Watersheds 6 2. Lower Meramec Watershed Cities 9 3. Lower Meramec Watershed 1990 Population Distribution 12 4. Lower Meramec Watershed 2000 Population Distribution 13 5. Lower Meramec Watershed 2010 Population Distribution 14 6. Lower Meramec Watershed National Pollutant Discharge Elimination 17 System Sites 7. Lower Meramec Watershed Hydrologic Soil Groups and Runoff 20 Potential 8. Lower Meramec Watershed Bedrock Geology 22 9. Lower Meramec Watershed Cultural Resources 24 10. Lower Meramec Watershed Conservation Opportunity Areas 26 11. Lower Meramec Watershed Stream Team Sampling Sites 28 12. Lower Meramec Watershed Meramec River Sampling Sites 31 13. Lower Meramec Watershed Impaired Streams, Missouri 303(d) List 35 14. Lower Meramec Watershed Threatened or Endangered Species Location 41 15. Proposed Monitoring Network 67 16. Brush Creek Watershed Aerial Photograph 85 17. Brush Creek Watershed Hydrologic Soil Groups and Runoff 86 Potential 18. Brush Creek Watershed Steep Slopes 87 19. Brush Creek Watershed Land Use 88 20. Brush Creek Watershed Recreation & Open Spaces 89 21. Fox Creek Watershed Aerial Photograph 95 22. Fox Creek Watershed Hydrologic Soil Groups and Runoff 96 Potential 23. Fox Creek Watershed Steep Slopes 97 24. Fox Creek Watershed Land Use 98 25. Fox Creek Watershed Recreation & Open Spaces 99 26. LaBarque Creek Watershed Aerial Photograph 107 27. LaBarque Creek Watershed Hydrologic Soil Groups and Runoff 108 Potential List of Maps Map Page 28. LaBarque Creek Watershed Steep Slopes 109 29. LaBarque Creek Watershed Land Use 110 30. LaBarque Creek Watershed Recreation & Open Spaces 111 31. Hamilton Creek Watershed Aerial Photograph 119 32. Hamilton Creek Watershed Hydrologic Soil Groups and Runoff 120 Potential 33. Hamilton Creek Watershed Steep Slopes 121 34. Hamilton Creek Watershed Land Use 122 35. Hamilton Creek Watershed Recreation & Open Spaces 123 36. Grand Glaize Creek Watershed Aerial Photograph 130 37. Grand Glaize Creek Watershed Hydrologic Soil Groups and Runoff 131 Potential 38. Grand Glaize Creek Watershed Steep Slopes 132 39. Grand Glaize Creek Watershed Land Use 133 40. Grand Glaize Creek Watershed Recreation & Open Spaces 134 41. Meramec River Orientation (June 15, 2010) 145 Appendix (Separate Document) Appendix Page Introduction A. National Pollutant Discharge Elimination System (NPDES) Permits A - 1 Study Area Domestic NPDES Permits Issued on or after January 11, 2002 A - 3 Study Area Industrial NPDES Permits Issued on or after January 11, 2002 A - 11 Study Area Commercial-Institutional NPDES Permits Issued on or after A - 15 January 11, 2002 B. Cultural Resources B - 1 Franklin County Cultural Resources B - 3 Jefferson County Cultural Resources B - 4 St. Louis County Cultural Resources B - 6 C. Water Quality Monitoring Sample Results Volunteer Meramec River Stream Team Sampling Water Chemical Data Results C - 3 kayakswarm Water Chemistry Data C - 5 Government/Sewer District Meramec River Meramec River Raw Water Grab Sample Results C - 7 Tributaries of Meramec River Metropolitan St. Louis Sewer District Raw Water Grab Sample C - 8 Results Missouri Department of Natural Resources Raw Water Grab C - 13 Sample Results U.S. Geological Service Raw Water Grab Sample Results C - 14 D. Pollutant Loadings D - 1 Pollutant Loadings Brush Creek Watershed D - 3 Pollutant Loadings Fox Creek Watershed D - 4 Pollutant Loadings LaBarque Creek Watershed D - 5 Pollutant Loadings Hamilton Creek Watershed D - 6 Pollutant Loadings Grand Glaize Creek Watershed D - 7 Mean Impervious Cover Percentages D - 8 Annual Runoff by Land Use Categories D - 10 Pollutant Concentrations by Land Use Categories D - 11 The Simple Method to Calculate Urban Stormwater Loads D - 13 E. Pollutant Loading Model Evaluation E - 1 F. LaBarque Creek and Fox Creek Fish Population Analysis F - 1 Appendix (Separate Document) - Continued Appendix Page G. Lower Meramec Watershed Planning Survey and Analysis G - 1 H. Lower Meramec Source Water Protection Strategy Exchange H - 1 Demonstration Project (2009) – Action Plans From Land Acquisition Subcommittee and Septic System Subcommittee I. Instream Water Quality Monitoring Data – Missouri Department of I - 1 Natural Resources J. Grant Opportunities and Funding Resources J – 1 K. Land Cover Maps K – 1 L. Proposed Projects from Missouri State Parks L - 1 Documents available in pdf format at the Lower Meramec Watershed Plan web page: http://www.ewgateway.org/environment/waterresources/Watersheds/LowerMeramec/lowermera mec.htm LaBarque Creek Watershed Conservation Plan, 2009 Prepared by Missouri Department of