PROTECTING OUR WATERWAYS: STORMWATER POLLUTION REDUCTION EFFORTS
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1 PROTECTING OUR WATERWAYS: STORMWATER POLLUTION REDUCTION EFFORTS Public Information Meeting ~ May 2, 2018 Public Works Stormwater Management Division
2 OVERVIEW Surface Water Quality Protection Municipal Separate Storm Sewer System Program ~ MS4 Program Stormwater Pollution Reductions o Chesapeake Bay Watershed impacted by phosphorus, nitrogen, and sediment o Waterways impacted by phosphorus o Waterways impacted by bacteria A Balanced Approach Summary 2
3 DEQ SURFACE WATER QUALITY PROTECTION Virginia Department of Environmental Quality (DEQ) o Oversight of Virginia Water Quality Standards to protect reasonable public uses and support the growth of aquatic life Water Quality Monitoring for Surface Waters o Performs annual water quality monitoring o 33 stations in Virginia Beach o Develops a water quality assessment every two years 3
4 DEQ SURFACE WATER QUALITY PROTECTION Identify Impaired Waterways o Waterways are identified in a list if they have pollutants that exceed water quality standards Establish Pollutant Budgets (Total Maximum Daily Load = TMDL) o Waterways are analyzed to determine what amount of pollution they can handle without exceeding water quality standards o A pollution budget is set for the City s discharge of stormwater runoff 4
5 LOCAL IMPAIRED WATERWAYS 30 Waterways have Pollution Budgets or Total Maximum Daily Loads (TMDLs) Chesapeake Bay 14 Impaired Waterways 3 Chesapeake Bay Watersheds Atlantic Ocean TMDL under development Southern Rivers 13 Impaired Waterways
6 VIRGINIA BEACH SURFACE WATERS Primary Watersheds Chesapeake Bay Land Area 241 square miles Population ~450,000 More than 550 miles of streams Southern Rivers Atlantic Ocean Primary Watersheds Chesapeake Bay Atlantic Ocean Southern Rivers / Albemarle Sound 6
7 MS4 PERMIT OVERVIEW Required by EPA under the Clean Water Act o Addresses the area of land that drains to the City s stormwater outfalls that discharge to surface waters Effective July 1, 2016 (5 year term) o Compliance oversight by the Stormwater Management Division o Requires pollution prevention from the stormwater system Requires pollution reductions for watersheds with established pollution budgets for the City o City must develop and submit TMDL Action Plans to DEQ by June 30,
8 TMDL ACTION PLAN REQUIREMENTS CHESAPEAKE BAY ~ PHOSPHORUS, NITROGEN, AND SEDIMENT Delineate the service area of the stormwater system (MS4 service area) Estimate the pollutant loading and required pollutant reductions from the MS4 service area Identify the management practices and retrofit programs that will be used to meet the reductions for this permit term Achieve pollutant reductions over three permit cycles or 15 years LOCAL PHOSPHORUS AND BACTERIA Identify the TMDL, source of pollution, and pollution budget by DEQ Identify and maintain an updated list of all additional management practices, control techniques and engineering methods that reduce these pollutants Evaluate all City facilities for these pollution sources Develop and implement a method to assess effectiveness of the plan Estimate an end date for meeting the pollution budget assigned by DEQ using an adaptive iterative approach over multiple permit cycles 8
9 STORMWATER POLLUTION REDUCTIONS CHESAPEAKE BAY TMDL Issued by EPA in December 2010 Affects Virginia, West Virginia, the District of Columbia, Maryland, Delaware, Pennsylvania, and New York Pollutant Reductions for phosphorus, nitrogen, and sediment Virginia developed a Watershed Implementation Plan (WIP) Phase I and II that allocates pollutant reductions to MS4s Chesapeake Bay TMDL Area 9
10 STORMWATER POLLUTION REDUCTIONS CHESAPEAKE BAY TMDL ACTION PLAN MS4 Permit requires a First Phase TMDL Action Plan to reduce 5.75% of the total estimated nutrients and sediment by the end of this permit term Accounting for Stormwater Management Facility Construction Credit for past actions ~ Facilities constructed between Redevelopment Projects from July 1, 2014 Construction of Water Quality Improvement Projects Street Sweeping Program Watershed Phosphorus Nitrogen Sediment Elizabeth River Lynnhaven River Pollutant Reductions Required by June 30, 2021 (pounds/year) , ,600 Little Creek ,585 10
11 STORMWATER POLLUTION REDUCTIONS CHESAPEAKE BAY TMDL ~ LOOKING FORWARD DEQ will require the total pollutant reductions over 3 permit cycles or 15 years Pollutant Reduction Strategy Stormwater Management Facility Construction Street Sweeping Program Nutrient and Sediment Trading Agreement with HRSD Total Pollutant Reductions Required (pounds/year) Watershed Phosphorus Nitrogen Sediment Elizabeth River Lynnhaven River 1,000 4, ,450 2,510 11, ,000 Little Creek 500 2, ,090 Totals 4,010 17,900 1,524,540 Reductions shown are for all three implementation phases 11
12 HRSD AND CITY OF VIRGINIA BEACH PARTNERSHIP EPA recommends an Integrated Planning Approach for both stormwater and wastewater to work together to meet the Chesapeake Bay TMDL requirements Virginia Regulations allow trading of pollutant reductions between the Hampton Roads Sanitation District (HRSD) and the City of Virginia Beach. City must achieve 5% of the total reductions for the First Phase Chesapeake Bay pollutant reductions Virginia Beach will continue to work to minimize the amount of credits needed from HRSD for nutrient and sediment pollutant reductions 12
13 STORMWATER POLLUTION REDUCTIONS PHOSPHORUS TMDLS Watersheds with pollution limits for phosphorus are in the Southern Rivers Watershed TMDLs established by DEQ between 2011 and 2014 Require phosphorus pollutant reductions within North Landing River Watershed Ashville Bridge Creek Watershed Pocaty Watershed Northwest River Watershed Phosphorus TMDL Areas 13
14 SOURCES OF PHOSPHORUS POLLUTION Pet waste Lawn fertilizer Septic systems Livestock waste Waterfowl (ducks, geese)
15 IMPACTS OF PHOSPHORUS POLLUTION Excess algae Depleted oxygen Fish kills Foul odors Unsuitable for recreation 15
16 STORMWATER POLLUTION REDUCTIONS LOCAL PHOSPHORUS TMDLS Pollutant Reduction Strategy Stormwater Management Facility Construction New facilities Improvements to existing facilities Street Sweeping Program Targeted Outreach Programs Total Pollutant Reductions Required (pounds/year) Watershed North Landing River Ashville Bridge Creek Phosphorus Pocaty River 5 Northwest River 5 Totals
17 PROGRAMS TARGETED AT PREVENTING PHOSPHORUS POLLUTION Pick up after your pet Don t feed geese and ducks Leave grass clippings on the lawn Sweep up grass on pavement Use fertilizer sparingly Test your soil to know what it needs Choose slow-release fertilizers Apply in dry weather and at the right time of year Sweep excess fertilizer off pavement Maintain your septic system properly 17
18 STORMWATER POLLUTION REDUCTIONS BACTERIA TMDLS Watersheds with pollution limits for bacteria are citywide affecting all three primary watersheds TMDLs Established by DEQ between 2004 and 2014 Require Bacteria pollutant reductions Fecal Coliform, E. Coli, and Enterococci Bacteria TMDL Areas 18
19 STORMWATER POLLUTION REDUCTIONS LOCAL BACTERIA TMDLS Pollutant Reduction Strategy Targeted Outreach Programs Stormwater Management Facility Construction New facilities Improvements to existing facilities Bow Creek City View 19
20 TARGETED OUTREACH PROGRAMS (NON-STRUCTURAL PRACTICES) Pet Waste Management Program Pet Waste Disposal Stations Meadow Management Prohibit Feeding of Waterfowl on Public Lands Septic-to-Sewer Conversions Education and Outreach for Boaters on Proper Dumping Practices Don t feed the wildlife Scoop, bag and trash dog waste 20
21 STORMWATER MANAGEMENT FACILITIES (STRUCTURAL PRACTICES) BMP Number Bioretention 93 Constructed Wetlands 4 Dry Swales 6 Extended Detention Pond 227 Filtering Manufactured Device 201 Grass Channels 4 Hydrodynamic Manufactured Device 83 Infiltration Practices 214 Permeable Pavement 47 Sheet Flow to Open Space 1 Wet Pond 169 Wet Swales 3 21
22 STORMWATER POLLUTION REDUCTIONS LOCAL BACTERIA TMDLS Pollutant Reduction Strategy Targeted Outreach Programs Adaptive Iterative Approach Citywide and Watershed focused Stormwater Management Facility Construction New facilities Improvements to existing facilities Modify Projects & Programs Implement Projects & Programs Evaluate Project & Program Effectiveness 22
23 A WATERSHED BALANCED APPROACH Chesapeake Bay Watershed Construct 5 projects during the permit term to treat existing developed lands Construct projects for bacteria pollutant reductions that will also support the Chesapeake Bay TMDL Southern Rivers Watershed Construct projects for phosphorus pollutant reductions that will also support the bacteria pollutant reductions Atlantic Ocean Watershed Construct project for bacteria pollutant reductions Local Phosphorus and Bacteria TMDLs Chesapeake Bay TMDL 23
24 MS4 PROGRAM 5-YEAR FUNDING POLLUTION REDUCTION PROGRAM 5-YEAR PROJECT FUNDING* Capital Improvement Program Includes programs and projects Local Phosphorus TMDL Water Quality 5 Year Program $43 million total program $26 million is allocated for projects Chesapeake Bay TMDL $26M Program Local Bacteria TMDL *Funded through the Stormwater Utility Fee Revenue 24
25 SUMMARY The City has committed significant funding towards improving local water quality and compliance with the MS4 Stormwater Permit A balanced approach to pollution reductions will be used for all our TMDL Watersheds HRSD and the City of Virginia Beach are partners in Restoration of the Chesapeake Bay Our goal is clean and sustainable lakes, rivers and estuaries 25
26 QUESTIONS Melanie Coffey, P.E. (757) Virginia Beach Public Works Engineering MS4 Permit Administrator Review Action Plans at: comments to: 26
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