ATERWAYS : : TECTIN ING OU S TORM RMWATER P OL OLLUTION R EDUCT - - PowerPoint PPT Presentation

PROTE

TECTIN ING OU OUR WAT ATERWAYS:

: STORM

RMWATER POL OLLUTION

REDUCT

CTIO ION EFFOR ORTS TS

Public Information Meeting ~ May 2, 2018 Public Works Stormwater Management Division

OVER

ERVIEW EW

▪ Surface Water Quality Protection ▪ Municipal Separate Storm Sewer System Program ~ MS4 Program ▪ Stormwater Pollution Reductions

• Chesapeake Bay Watershed impacted by phosphorus, nitrogen, and sediment
• Waterways impacted by phosphorus
• Waterways impacted by bacteria

▪ A Balanced Approach ▪ Summary

2

DEQ EQ S SURFA

FACE WATER QUAL ALITY PRO ROTECTI TION

▪ Virginia Department of Environmental Quality (DEQ)

• Oversight of Virginia Water Quality Standards to protect reasonable public uses

and support the growth of aquatic life

▪ Water Quality Monitoring for Surface Waters

• Performs annual water quality monitoring
• 33 stations in Virginia Beach
• Develops a water quality assessment every two years

3

DEQ EQ S SURFA

FACE WATER QUAL ALITY PRO ROTECTI TION

▪ Identify Impaired Waterways

• Waterways are identified in a list if they have pollutants that exceed water

quality standards

▪ Establish Pollutant Budgets (Total Maximum Daily Load = TMDL)

• Waterways are analyzed to determine what amount of pollution they can handle

without exceeding water quality standards

• A pollution budget is set for the City’s discharge of stormwater runoff

4

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

VIRGIN

INIA IA BEACH SURFA FACE WATERS

Chesapeake Bay Atlantic Ocean Southern Rivers

Pri rimary ry Water ersheds heds

▪ Land Area 241 square miles ▪ Population ~450,000 ▪ More than 550 miles of streams ▪ Primary Watersheds

▪ Chesapeake Bay ▪ Atlantic Ocean ▪ Southern Rivers / Albemarle Sound

6

MS MS4 P PERMIT OVERVIEW

▪ Required by EPA under the Clean Water Act

• 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)

• Compliance oversight by the Stormwater Management

Division

• Requires pollution prevention from the stormwater

system

▪ Requires pollution reductions for watersheds with established pollution budgets for the City

• City must develop and submit TMDL Action Plans to DEQ

by June 30, 2018

7

TMD MDL A ACT

CTIO ION PLAN AN REQUIREM EMEN ENTS

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

STORMWATER POLLU

LUTION REDUCT CTIO IONS

CHESAPEAKE BAY

AY TMD

MDL

▪ Issued by EPA in December 2010

▪ Affects Virginia, West Virginia, the District

• f 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

9

Chesapeake Bay TMDL Area

STORMWATE

TER POLLUTIO ION REDUCTIONS NS

CHESA

SAPEAKE BAY TMDL A

ACTION PLAN

AN

▪ 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 2006-2009 ▪ Redevelopment Projects from July 1, 2014

▪ Construction of Water Quality Improvement Projects ▪ Street Sweeping Program

Watershe hed Phospho phorus us Nitrogen Sedim diment Elizabeth River 58 241 26,476 Lynnhaven River 144 643 50,600 Little Creek 29 144 10,585

10

Pollutant Reductions Required by June 30, 2021 (pounds/year)

STORMWATE

TER POLLUTIO ION REDUCTIONS NS

CHESA

SAPEAKE BAY TMDL ~

~ LOOK

OOKING FORWA WARD

▪ 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

Watershe hed Phospho phorus us Nitrogen Sedim diment Elizabeth River 1,000 4,200 460,450 Lynnhaven River 2,510 11,190 880,000 Little Creek 500 2,510 184,090 To Totals 4, 4,010 010 17, 17,90 900 1, 1,524 524,54 540

11

Total Pollutant Reductions Required (pounds/year)

Reductions shown are for all three implementation phases

HRS RSD AND

ND CITY OF VIRGIN INIA IA BEACH PARTNER NERSHIP

▪ 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

STORMWATE

TER POLLUTIO ION REDUCTIONS NS

PHOSPHO

PHORU RUS 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

13

Phosphorus TMDL Areas

SOURCES OF PHOSPHORUS POLLUTION

• Pet waste
• Lawn fertilizer
• Septic systems
• Livestock waste
• Waterfowl (ducks, geese)

▪ Excess algae ▪ Depleted oxygen ▪ Fish kills ▪ Foul odors ▪ Unsuitable for recreation

IMPACTS OF PHOSPHOR

HORUS POLLU LUTION

15

STORMWATER POLLU

LUTION REDUCT CTIO IONS

LOCA

CAL PHOSP SPHORU RUS TM

TMDL DLS

Watershed Phosphorus North Landing River 775 Ashville Bridge Creek 35 Pocaty River 5 Northwest River 5 Totals 820

16

Total Pollutant Reductions Required (pounds/year)

• Pollutant Reduction Strategy
• Stormwater Management

Facility Construction

• New facilities
• Improvements to existing facilities
• Street Sweeping Program
• Targeted Outreach Programs

▪ 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

PROGRAMS

MS TARGETE TED AT AT PREVENT NTING NG PHOSPHO PHORUS

POLLUTION

ON

17

STORMWATE

TER POLLUTIO ION REDUCTIONS NS

BACTERI

RIA 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

18

Bacteria TMDL Areas

STORMWATER POLLU

LUTION REDUCT CTIO IONS

LOCA

CAL BAC ACTERI RIA TMD

MDLS

Bow Creek City View

19

• Pollutant Reduction Strategy
• Targeted Outreach Programs
• Stormwater Management

Facility Construction

• New facilities
• Improvements to existing facilities

TARG

RGETED OUTRE REACH PRO ROGRAM RAMS

(N (NON

ON-STR TRUCTU TURAL RAL PRACT CTIC ICES)

▪ 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

20 Scoop, bag and trash dog waste Don’t feed the wildlife

STORMWATER MANAGEM

EMENT ENT FACIL ILIT ITIE IES

(S (STRU

RUCTURA RAL PRACT CTIC ICES)

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

STORM

RMWATER POL OLLUTION REDU DUCTIONS

LOC

OCAL BACTERIA TMD

MDLS

Implement Projects & Programs Evaluate Project & Program Effectiveness Modify Projects & Programs

22

• Pollutant Reduction Strategy
• Targeted Outreach Programs
• Adaptive Iterative Approach
• Citywide and Watershed focused
• Stormwater Management

Facility Construction

• New facilities
• Improvements to existing facilities

A WATER

ERSHED ED BALAN ANCED APPR PPROACH

▪ 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

23

Local Phosphorus and Bacteria TMDLs Chesapeake Bay TMDL

MS MS4 PROG

OGRAM 5-YEAR FUND NDING

POLLUTION REDUCTION PROGRAM ▪ Capital Improvement Program

▪ Includes programs and projects

▪ Water Quality 5 Year Program

▪ $43 million total program ▪ $26 million is allocated for projects

5-YEAR PROJECT FUNDING*

$26M Program

Chesapeake Bay TMDL Local Phosphorus TMDL Local Bacteria TMDL

24

*Funded through the Stormwater Utility Fee Revenue

SUMMA

MMARY

▪ 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

QUESTIONS

Melanie Coffey, P.E. (757) 385-8593 Virginia Beach Public Works Engineering MS4 Permit Administrator

26

Review Action Plans at: www.vbgov.com/stormwater-program Email comments to: vbstormwater@vbgov.com