FINAL Appendix September 2017 PlanP —from Pacific to Arnold— This project has been funded in part by the U.S. Environmental Protection Agency, Region7, through the Missouri Department of Natural Resources under assistance agreement G16-NPS-05 to East-West Gateway Council of Governments. Other funders include Great Rivers Greenway, Missouri Department of Conservation and The Nature Conservancy. The contents of this document do not necessarily reflect the views and policies of the Environmental Protection Agency, or other partners, nor does the mention of trade names or commercial products constitute endorsement or recommendation for use. Appendices Lower Meramec Watershed Management Plan 2017 Update: Including Mattese/Pomme, Sugar/Fenton, Grand Glaize/Fishpot/ Williams, Hamilton/Kiefer, Fox/LaBarque, and Brush Creeks This project has been funded in part by the U.S. Environmental Protection Agency, Region 7, through Missouri Department of Natural Resources under assistance agreement G16-NPS-05 to East-West Gateway Council of Governments. Other funders include Great Rivers Greenway, Missouri Department of Conservation and The Nature Conservancy. The contents of this document do not necessarily reflect the views and policies of the Environmental Protection Agency, or other partners, nor does the mention of trade names or commercial products constitute endorsement or recommendation for use. Prepared by East-West Gateway Council of Governments September 2017 East-West Gateway Council of Governments (EWGCOG) hereby gives public notice that it is the policy of the agency to assure full compliance with Title VI of the Civil Rights Act of 1964, the Civil Rights Restoration Act of 1987, Executive Order 12898 on Environmental Justice, and related statutes and regulations in all programs and activities. Title VI requires that no person in the United States of America, on the grounds of race, color, sex, or national origin, shall be excluded from the participation in, be denied the benefits of, or be otherwise subjected to discrimination under any program or activity for which EWGCOG receives federal financial assistance. Any person who believes they have been aggrieved by an unlawful discriminatory practice under Title VI has a right to file a formal complaint with EWGCOG. Any such complaint must be in writing and filed with EWGCOG’s Title VI Coordinator within one hundred eighty (180) calendar days following the date of the alleged discriminatory occurrence. For more information, or to obtain a Title VI Nondiscrimination Complaint Form, please see EWGCOG’s web site at www.ewgateway.org/about-us/what-we-do/title-vi or call (314) 421-4220 or (618) 274-2750. Printed on Recycled Paper Appendix A. Characterize the Watershed – Background Information B. Load Reduction Curves and Pollutant Reduction Estimates for Streams in the Lower Meramec Watershed C. Clear Choices Clean Water Program Description D. Private Land Services: Landowner Assistance Program, Missouri Department of Conservation E. Proposed Long-term Streamflow and Water-Quality Monitoring of Restoration Efforts in the Kiefer Creek Watershed and Cost Estimates, U.S. Geological Survey, Missouri Water Science Center F. Bacteria Load and Bacteria Removal Efficiency by Best Management Practice G. Kiefer Creek Stream Restoration Master Plan, Stantec Consulting Services for The Nature Conservancy, Missouri Chapter H. Proposed Tasks for Mattese Creek Watershed Master Plan I. Draft Description of Proposed Water Quality Monitoring of Mattese Creek, U.S. Geological Survey, Missouri Water Science Center J. Fishpot Creek Erosion Review, City of Valley Park K. Public Lands Best Management Strategies and Project Ideas, St. Louis County Parks and Great Rivers Greenway District L. Kiefer Creek Five Star and Urban Waters Restoration Project Proposal Narrative, Educational Component, The Nature Conservancy APPENDIX A BACKGROUND INFORMATION – CHARACTERIZE THE WATERSHED 1 Table of Contents Appendix A. Background Information Lower Meramec River Watershed ........................... 3 A. Planning Area Overview and Description – Updated ...................................................... 3 B. Planning Area Overview and Description – Updated ...................................................... 3 C. Socio-Economic Background - Updated .......................................................................... 6 D. Land Use .......................................................................................................................... 7 E. Wastewater Systems in the Lower Meramec Watershed –Updated ................................ 7 F. Individual On-site Wastewater Treatment Systems in the Lower Meramec Watershed as of 1990 – Updated ....................................................................................................................... 8 G. Hydrologic Soil Group Classification – Updated ............................................................ 9 H. Geology .......................................................................................................................... 12 I. Conservation Opportunity Areas ....................................................................................... 12 J. Cultural Resources ............................................................................................................. 12 K. Water Quality Sampling and Biological Assessment (Element I – Monitoring Component)............................................................................................................................... 12 1. Water Quality Sampling ............................................................................................. 12 2. Impaired Streams – Updated ...................................................................................... 19 3. Biological Assessments – Updated............................................................................. 23 L. Watershed Descriptions – Updated ................................................................................ 26 1. Sugar/Fenton Creeks and Pomme/Mattese Creeks Watersheds ................................. 26 2. Physical Characteristics .............................................................................................. 27 3. Sugar/Fenton Creeks and Pomme Mattese Creeks Watershed Hydrologic Soil Group Classification......................................................................................................................... 28 4. Population and Land Use ............................................................................................ 29 5. Land Use ..................................................................................................................... 29 6. Stream Classification .................................................................................................. 30 7. Wastewater Treatment and Drinking Water ............................................................... 32 8. Baseline Pollutant Loads.................................................................................................. 33 M. Lower Meramec River National Pollutant Discharge Elimination System Permits ........... 51 N. Maps .................................................................................................................................... 66 2 Appendix A. Background Information Lower Meramec River Watershed A. Planning Area Overview and Description – Updated Some of the elements from Section II Characterize the Watershed of the 2012 Plan1, have been updated and revised to include the Sugar/Fenton Creeks and Pomme/Mattese Creeks watersheds. Those elements not updated are noted as such. Section L contains a discussion about the Sugar/Fenton Creeks and Pomme/Mattese Creeks watersheds. B. Planning Area Overview and Description – Updated The 2012 Plan addressed four watersheds draining approximately 116,000 acres (182 square miles) of Franklin, Jefferson, and St. Louis counties, extending from Pacific in Franklin County to Valley Park in St. Louis County. The watersheds addressed in this plan were Brush Creek (HUC 071401020902), Fox/LaBarque Creeks (HUC 071401020903), Hamilton Creek (HUC 071401021001), and Grand Glaize Creek (HUC 071401021002) (Maps 1-5 and other maps referenced in this report can be found at the end of this report in Section N). The planning area has been extended from Valley Park to the confluence of the Meramec River and the Mississippi River adding Sugar Creek, including Fenton Creek, (HUC 071401021003) and Pomme/Mattese Creeks (HUC 071401021004) watersheds have been included. (Maps 6 and 7). Information about these watersheds (incorporated units, creeks, size) is presented in Table 1 below. Table 2 lists information on the municipalities incorporated within the lower Meramec watershed and the percent of each municipality that lies within the lower Meramec watershed. Parkdale and Arnold, in Jefferson County, and Fenton, Kirkwood, Green Park and Sunset Hills, in St. Louis County, are located, either partially or entirely, within the Sugar/Fenton Creeks and Pomme/Mattese Creeks watersheds (see Table 2). 1 http://www.ewgateway.org/lowermeramec/lowermeramecwatershedplan-final.pdf 3 Table 1. Lower Meramec River Watersheds 12-Digit Square Hydrologic Unit County Acres Creeks Municipalities Miles Brush, Winch Franklin Brush, Segment Brush Creek St. Louis draining to Pacific 23,584 36.9 071401020902 Meramec* Jefferson Segment draining to Meramec Fox Creek 28,201 44.1 Little Fox 071401020903 Little Fox, Fox, Fox