Back River Bacteria TMDL Action Plan DRAFT REPORT 2018.02.01 Back River Bacteria TMDL Action Plan Prepared for: City of Hampton, Virginia Public Works Department 22 Lincoln Street Hampton, VA 23669 Prepared By: Whitman Requardt and Associates, LLC 11870 Merchants Walk Newport News, VA 23606 Project # 19268-003 Final Report - February 1, 2018 Table of Contents Acronyms ........................................................................................................................................4 1.0 Introduction ..............................................................................................................................5 1.1.Purpose ...........................................................................................................................5 1.2 Regulated Areas .............................................................................................................5 1.3 Total Maximum Daily Loads and Waste Load Allocations ..........................................7 1.4 MS4 General Permit – Special Conditions ....................................................................8 2.0 Bacteria Water Quality Standards, Data and Applicable TMDLs .....................................9 2.1 Water Quality Standards ................................................................................................9 2.2 Water Quality Data ......................................................................................................10 2.3 TMDL and Assigned WLA .........................................................................................13 2.4 Potential Sources, Required Reductions and Opportunities ........................................14 3.0 Existing City Practices and Programs Summary ...............................................................17 3.1 Overview ................................................................................................................................ 17 3.2 Stakeholders .......................................................................................................................... 17 3.3 Existing Water Quality Improvement Programs to Date .............................................18 Sanitary Sewer Improvements .......................................................................................... 18 Septic System Programs ................................................................................................... 19 Sewer Extensions .............................................................................................................. 20 Stormwater Quality Programs ........................................................................................... 20 Pet Waste Programs .......................................................................................................... 21 Aquatic Resource Restoration ......................................................................................... 21 Land Use Management ..................................................................................................... 22 Wildlife Contribution Controls ......................................................................................... 22 Chesapeake Bay TMDL Action Plan Projects .................................................................. 22 Public Outreach and Training Programs ........................................................................... 23 Water Quality Monitoring Programs ................................................................................ 24 3.4 Stakeholder Management Action Success ......................................................................... 25 4.0 Back River MS4 Required TMDL Action Plan ........................................................................ 26 4.1 Legal Authority – Part I.D.2.b)1).................................................................................27 4.2 Additional Management Practices and Actions – Part I.D.2.b)2) .................................. 27 Monitoring Programs ........................................................................................................ 28 BMP Bacteria Retrofit Programs ...................................................................................... 28 2 Marinas and Pump Outs ................................................................................................... 28 Oyster Propagation Programs .......................................................................................... 29 Geese ................................................................................................................................ 29 Pet Waste ......................................................................................................................... 30 4.3 Enhanced Public Outreach- Part I.D.2.b) 3) ...................................................................... 30 4.4 Assessment of City Facilities – Part I.D.2.b) 4) ..........................................................31 4.5 TMDL Action Plan Assessment and Timeline – Part I.D.2.b) 5) ................................31 4.6 Actions in Future Permit Cycles – Part 1.D.2.g) .........................................................32 5.0 Public Comment Process for Draft Action Plan - Part 1.D.2.b) 6) ..................................... 33 5.1 Public Comment Process .............................................................................................33 5.2 Summary Of Comments .............................................................................................33 5.3 Summary Of Actions Taken As A Result Of Comments ...........................................33 Appendix 1 HRSD Boater Education and Pump-Out Internship Program Agreement Appendix 2 Certification Statement List of Tables Table 1 MS4 Regulated Areas and Excluded Areas Summary .................................................................... 6 Table 2 Bacteria Criteria for Shellfish and Non-Shellfish Growing Areas ................................................. 10 Table 3 Impaired Segments of the Back River .......................................................................................... 11 Table 4 Annual and Maximum Daily Fecal Coliform TMDLs ................................................................. 14 Table 5 Bacteria Loading Sources and Required Reduction in Back River Watershed ............................ 15 Table 6 Hampton’s Potential Pollutant Sources ........................................................................................ 16 Table 7 City of Hampton Back River Watershed Land Use ...................................................................... 16 Table 8 Chesapeake Bay TMDL Projects .................................................................................................. 22 List of Figures Figure 1 City of Hampton MS4 Regulated Area ......................................................................................... 7 Figure 2 Back River Impairments .............................................................................................................. 13 3 Acronyms BMP Best Management Practice CCTV Closed-Circuit Television CFU Colony-Forming Unit DCR Department of Conservation and Recreation E. coli Escherichia Coli EPA US Environmental Protection Agency GIS Geographic Informational System HCCC Hampton Clean City Commission HOA Home Owners Association HRPDC Hampton Roads Planning District Commission HRSD Hampton Roads Sanitation District HWRP Hampton Waterways Restoration Project Committee IDDE Illicit Discharge Detection and Elimination IP Implementation Plan LA Load Allocation LF Linear Feet ml Milliliter MOS Margin of Safety MPN Most Probable Number MS4 Municipal Separate Stormwater Sewer System POC Pollutant of Concern RWWMP Regional Wet Weather Management Plan SSES Sanitary Sewer Evaluation Survey SSO Sanitary Sewer Overflow SWPPP Stormwater Pollution Prevention Plan TNCC Thomas Nelson Community College TMDL Total Maximum Daily Load USCB US Census Bureau USDA US Department of Agriculture USGS US Geological Survey USFWS US Fish and Wildlife Services VADGIF Virginia Department of Game and Inland Fisheries VDEQ Virginia Department of Environmental Quality VDH-DSS Virginia Department of Health – Division of Shellfish Sanitation VDOT Virginia Department of Transportation VCE Virginia Cooperative Extension VIMS Virginia Institute of Marine Science VMRC Virginia Marine Resources Commission VSMP Virginia Stormwater Management Program VPDES Virginia Pollutant Discharge Elimination System WLA Waste Load Allocation 4 1.0 Introduction 1.1 Purpose The City of Hampton (City or Hampton) is designated as a Phase 1 Municipal Separate Storm Sewer System (MS4) (population over 100,000 persons) and is authorized to discharge stormwater from municipal-owned or operated storm sewer outfalls under its Individual Permit No. VA0088633. This permit requires the City to address pollutants of concern (POC) in accordance with state requirements where it has been allocated a waste load in an approved Total Maximum Daily Load (TMDL). Based on the water quality assessment presented in the February 11, 2014 draft of the “Total Maximum Daily Loads of Bacteria for Back River in York County and Cities of Hampton, Poquoson, and Newport News, Virginia”, hereby referred to as the Back River TMDL, prepared by the Virginia Institute of Marine Science (VIMS) for the Virginia Department of Environmental Quality (VDEQ); the Back River “does not support its designated use of primary contact