NPDES Stormwater and the Town of Wrightsville Beach

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NPDES Stormwater and theTown of Wrightsville
Beach
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Stormwater 101
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Why Worry about Stormwater?

• What is stormwater?
• Stormwater is the runoff that occurs during and
  after perception. Stormwater is carried downhill
  and eventually enters creeks, lakes and rivers.

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Urban and Industrial Stormwater Typical
Pollutants

• Suspended solids/sediments
• Nutrients (nitrogen phosphorus)
• Metals (copper, zinc,lead and cadmium)
• Oil greases (PAHs)
• Bacteria and other human pathogens
• Pesticides herbicides
• Temperature
• Trash and floatables

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What is Stormwater Pollution?

• Human Behavior can cause stormwater pollution ..

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What is Stormwater Pollution

• Vehicle washing can cause stormwater pollution..

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What is Stormwater Pollution

• Leaking equipment can cause stormwater
  pollution..

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What is Stormwater Pollution

• Poor tank management can cause stormwater
  pollution..

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What is Stormwater Pollution

• Poor material storage practices can cause
  stormwater pollution

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What is Stormwater Pollution

• Sediment and stream bank erosion can also cause
  stormwater pollution.

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The Federal Stormwater Program
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The Federal Stormwater Program

• National Pollution Discharge Elimination System
  (NPDES)
• Regulates sources of pollution at a recognizable
  point of discharge
• pipes
• ditches
• other man made outlets

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NPDES Regulated Entities

• Phase I
• Large and medium municipalities
• Industrial activities
• Construction sites gt 5 acres
• Phase II
• Small municipalities
• Municipal industrial activities
• Construction sites gt 1 acre

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Town of Wrightsville Beachs Required Permits

• Phase II MS4 Permit
• Covers TOWB municipal jurisdiction area
• Regulates the Municipal Separate Strom Sewer
  System (MS4)
• Municipally Owned/ Operated Industrial Facilities
  
• - Vehicle maintenance facilities

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Federal Stormwater Permits

• Define minimum requirements
• Establish compliance and enforcement capability
• Include Federal and State requirements
• Issued by DWQ in North Carolina

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NPDES Permit Emphasis

• Control Stormwater pollutants by
• Raising awareness
• Managing pollutant sources
• Controlling runoff
• all to the Maximum Extent Practicable
• (MEP)

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The MS4 Stormwater Program
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MEP- The Phase II Six Minimum Control Measures

• Public Education and Outreach
• Public Involvement / Participation
• Illicit Discharge Detection and Elimination
• Construction Site Runoff Control
• Post- Construction Management
• Pollution Prevention/ Good Housekeeping

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TOWBs Permit Application

• Submit to DWQ by March 10, 2003
• Stormwater Program Proposal
• - Based on MEP ( 6 minimum measures)
• - Program components for the next 5 years
• - Best Management Practices (BMPs)
• - Measurable Goals
• - Implementation Timelines
• - Responsible Parties/ Departments

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Organizational Impacts

• Planning Department
• Emergency Management
• Transportation (Street Maintenance)
• Transportation (Design)
• Legal
• Finance
• Accounting
• Budget
• Fire
• Parks and recreation

• Floodplain Management
• System Design/ Construction
• Program Responsibility
• Spill response
• System Maintenance
• System Planning and Design
• Enforcement
• Resource Creation
• Resource Accounting
• Resource Support
• Emergency response
• Landscape Management

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The Six Minimum Measures
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Public Education and Outreach

• Education/ Outreach on Impacts
• Guidelines
• Inform public on steps the can take
• Partnership with other entities
• Utilize existing materials where available
• Reach Diverse audiences

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EXAMPLES

• Develop plan to set up regional cooperative or
  establish educational partnerships to accomplish
  education goals
• Educational Materials
• PSAs
• Educational Signs
• Educational Curriculum
• Green Business Program
• Illicit Discharge Education Program

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Public Involvement/ Participation

• Provide Opportunities for Public Role in the
  Development and Implementation
• Guidelines
• - Involve Community stakeholders
• - Hold public meetings/hearings
• - Work with volunteer groups/projects

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Examples

• Stormwater Hotline
• Water Clean Ups
• Storm Drain Stenciling Program
• Wetland and Buffer Restoration
• Pet Waste Management
• Volunteer Education Teams

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Illicit Discharge Detection Elimination

• Program to Find and remove Non- Stormwater Inputs
  to the Storm Sewer System
• Guidelines
• - Develop a storm sewer system map
• - Develop legal authorities to prohibit and
  enforce
• - Develop a plan to detect and remove
• - Perform Educational Outreach

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Examples

• Adopt Illicit Discharge Detection Ordinance
• Map and Conduct Initial Shoreline Surveys of
  Storm Water Drainage System
• Create a Program to Collect Hazardous Waste, Oil,
  Tires, and Batteries
• Pass Illegal Dumping Ordinance
• Establish Enforcement

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Pollution Prevention / Good Housekeeping

• Program to Examine and Alter Current MS4
  Activities to Reduce Pollution
• Guidelines
• - Evaluate existing programs
• - Operation and maintenance program
• - Education/training for municipal operations

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Examples

• Develop a Pollution Prevention Plan
• - Hold Training Workshops on pollution
  prevention for municipal employees
• - Procedures in place for catch basin cleaning
  and regular street and parking lot sweeping
• Pollution Prevention Ordinance

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Construction Site Runoff Control

• Program to Reduce Stormwater Pollution from
  Construction gt 1 acre
• Guidelines
• - Regulatory mechanism for implementation
• - Review of site plans for compliance with
  BMPs
• - Regular Inspection and enforcement
• - Procedures to consider information from the
  public

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Examples

• Implement Stormwater Pollution Prevention Plan
  (SWPP)
• Construction Site Stormwater Control Ordinance
• Construction Site Inspection and Enforcement
  Program
• Contractor Certification Program

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Post-Construction Runoff Control

• Program to Reduce Pollutants in Post-
  Construction Runoff (sites w/land disturbance gt
  1 acre)
• Guidelines
• -Implement along with construction site runoff
  program
• - Applicable to new development and
  redevelopment
• - Ensure Long term operation and maintenance of
  BMPs
• - Non-structural BMPs

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Examples

• Post- Construction Stormwater Management Strategy
  
• - Create Strategy
• - Pass Post- Construction Stormwater
  Ordinance
• Stormwater System Inspection Program
• Pervious Surface Management Plan

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State Post - Construction Requirements

• Implement Post Construction Program by March 10,
  2005
• General
• 30 building setbacks
• Deed restrictions and protective covenants
• Fecal Coliform / septic system control program
• can coordinate with County

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State Post - Construction Requirements Contd

• Low Density Development
• - lt 24 built upon area or 2 Dwelling Units per
  acre
• - Vegetated conveyance systems
• High Density Development
• - Control new runoff volume from 1-yr., 24-hr.
  storm event
• - Design to remove 85 TSS
• -Annual maintenance inspection report

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State Post - Construction Requirements Contd

• Additional Requirements for SA waters
• - No new expanded discharges
• - Local ordinances
• BMP selection for fecal coliform die- off
• Pet Waste management program
• Overnight program for septic systems

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State Post - Construction Requirements Contd

• Additional Requirements
• - Local Ordinance
• - BMP selection for nutrient removal
• - Nutrient Application Management Program

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Successful Phase I Programs

• Clearly defined goals and policies visionary
  leadership
• Political and popular support
• Adequate funding mechanisms
• Clear and complete regulations
• Strong technical tools and capabilities
• Encouragement of innovative land uses

• Customer service orientation
• Positive control of development
• Comprehensive water quality programs
• Public- private partnering in multi- objective
  land use
• Strong public participation

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The MS4 Path Forward
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MS4 PermitBetween now and March 10

• Evaluate existing programs
• Define gaps in MEP
• Develop program to fill gaps
• BMPs
• Measurable goals
• Implementation timelines
• Responsible parties/departments
• Submit permit application

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Upon MS4 Permit Issuance

• Implement Permitted Program
• Perform Annual Assessment
• Evaluate program compliance
• Evaluate appropriateness of BMPs
• Evaluate progress on measurable goals
• Report to DWQ
• Revise / Update Program

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Questions?