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.
Urban and Industrial Stormwater: Typical Pollutants Suspended solids/sedimentsNutrients (nitrogen & phosphorus)Metals (copper, zinc,lead and cadmium)Oil & greases (PAHs)Bacteria and other human pathogensPesticides & herbicidesTemperatureTrash and floatables
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
NPDES Regulated Entities
Phase I- Large and medium municipalities- Industrial activities- Construction sites > 5 acres
Phase II- Small municipalities- Municipal industrial activities- Construction sites > 1 acre
Town of Wrightsville Beach’s 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
Federal Stormwater Permits
Define minimum requirementsEstablish compliance and enforcement
capabilityInclude Federal; and State requirementsIssued by DWQ in North Carolina
NPDES Permit Emphasis
Control Stormwater pollutants by:- Raising awareness- Managing pollutant sources- Controlling runoff
…all to the Maximum Extent Practicable
(MEP)
MEP- The Phase II Six Minimum Control
Measures 1. Public Education and Outreach2. Public Involvement / Participation3. Illicit Discharge Detection and
Elimination 4. Construction Site Runoff Control5. Post- Construction Management6. Pollution Prevention/ Good
Housekeeping
TOWB’s Permit Application
Submit to DWQ by March 10, 2003Stormwater 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
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
Public Education and Outreach
Education/ Outreach on ImpactsGuidelines:
Inform public on steps the can takePartnership with other entitiesUtilize existing materials where availableReach Diverse audiences
EXAMPLESDevelop plan to set up regional
cooperative or establish educational partnerships to accomplish education goals
Educational MaterialsPSAsEducational SignsEducational Curriculum Green Business ProgramIllicit Discharge Education Program
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
Examples
Stormwater HotlineWater Clean UpsStorm Drain Stenciling ProgramWetland and Buffer Restoration Pet Waste ManagementVolunteer Education Teams
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
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 OrdinanceEstablish Enforcement
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
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
Construction Site Runoff Control
Program to Reduce Stormwater Pollution from Construction > 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
Examples
Implement Stormwater Pollution Prevention Plan (SWPP)
Construction Site Stormwater Control Ordinance
Construction Site Inspection and Enforcement Program
Contractor Certification Program
Post-Construction Runoff Control
Program to Reduce Pollutants in Post- Construction Runoff (sites w/land disturbance > 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
Examples
Post- Construction Stormwater Management Strategy
- Create Strategy
- Pass Post- Construction Stormwater Ordinance
Stormwater System Inspection Program Pervious Surface Management Plan
State Post - Construction Requirements
Implement Post Construction Program by March 10, 2005
General: 30’ building setbacksDeed restrictions and protective covenantsFecal Coliform / septic system control program
can coordinate with County
State Post - Construction Requirements Cont’d
Low Density Development- < 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
State Post - Construction Requirements Cont’d
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
State Post - Construction Requirements Cont’d
Additional Requirements
- Local Ordinance- BMP selection for nutrient removal
- Nutrient Application Management Program
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
MS4 PermitBetween now and March 10
Evaluate existing programsDefine gaps in MEPDevelop program to fill gaps
BMPsMeasurable goalsImplementation timelinesResponsible parties/departments
Submit permit application
Upon MS4 Permit Issuance
Implement Permitted ProgramPerform Annual Assessment
Evaluate program complianceEvaluate appropriateness of BMPsEvaluate progress on measurable goalsReport to DWQ
Revise / Update Program