Stormwater Pollution Prevention Plan (SWP3)
Requirements
Joe Willingham, P.E.Professional Engineer III
Industrial Wastewater Enforcement SectionWater Quality Division
Department of Environmental Quality
General issues Who needs to sign them When do they need to be submitted to DEQ What needs to be in them How often do they need to be updated
Outline
Requirements listed in Part 4 of OKR10 Must be prepared prior to submission of NOI Should be prepared in accordance with good
engineering practices Licensed PE only required for those parts of
SWP3 involving the practice of engineering
General Issues
Address requirements for support activities Listed in Addendum G of OKR10
Include information on listed or endangered species found in proximity to site
General Issues
For sites discharging to receiving waters impaired for sediment
Document best management practices (BMPs) used to control pollutants of concern
For sites discharging to receiving water with approved Total Maximum Daily Load (TMDL) or watershed plan
Document how SWP3 is consistent with it
General Issues
Should be retained on-site or available upon request Post sign with:
OPDES permit number or copy of NOI Name and phone number of contact
person Brief description of project Location of SWP3 if site is inactive or
lacks on-site location
Making SWP3s Available
Listed in Part 6.7 NOIs or NOTs
Signed by responsible corporate official, general partner or proprietor, principal executive officer or ranking elected officer
Reports or other information requested by DEQ Signed by officials above or duly authorized
representative
Signatory Requirements
Authorized representative Must be made in writing and signed by
responsible official Can be named individual or any individual
occupying a named position
Certification statement in Part 6.7.4 must be included on any signed documents.
Signatory Requirements
Only submit SWP3 to DEQ if the project is located: Within Outstanding Resource Waters Within a Federal and State Aquatic Resource of
Concern (ARC) Within a larger site which is disturbing land of
40 or more acres Will be returned unreviewed if not in one of
the above areas
Submitting SWP3s to DEQ
Department of Environmental QualityEnvironmental Complaints and Local Services
Storm Water Unit 707 North Robinson, P.O. Box 1677
Oklahoma City, OK 73101-1677 FAX (405) 702-6226
Where to Send NOI & SWP3
Stormwater Team Responsible for SWP3 and permit compliance Must be identified by name or position Must include individual responsibilities Must have access to permit, SWP3, and other
documentation
Keep a copy of OKR10 and signed NOI with SWP3
Plan Contents
Construction Activity Description Include size of property, total area to be disturbed,
support activities, and maximum area to be disturbed at any one time
Identify all other operators and their areas of control
Describe intended construction sequence, including Installation of control measures Schedule of earth-disturbing activities Dates for stabilization of exposed soil
Plan Contents
Site Map Must be legible Must include:
Boundaries of property and locations of construction activities
Locations of waters of the state within 1 mile of site Boundary lines of any natural buffers Site topography, existing vegetative cover, and
drainage patterns
Plan Contents
Site Map (cont’d) Must include:
Stormwater and allowable non-stormwater discharge locations
Locations of potential pollutant-generating activities
Locations of stormwater control measures Sampling locations for asphalt batch plants, if
applicable
Plan Contents
Construction Site Pollutants Identify pollutants expected at site
Examples: sediment, paint, solvents, fuels, trash, etc. Describe activities generating listed pollutants
Examples: paving operations, concrete washout, paint/stucco washout, solid waste disposal, dewatering
Account for areas where spills or leaks could occur Document changes from manufacturer’s
specifications for fertilizer applications
Plan Contents
Endangered Species/Historic Preservation/Water Quality Impaired Waters Document any effect stormwater discharges or
stormwater discharge-related activities may have Describe and implement measures to protect
endangered species or threatened habitat or meet TMDL/watershed plan requirements
Describe how BMPs would reduce and avoid pollutant of concern into any impaired waters
Plan Contents
Controls to Reduce Pollutants Includes structural and non-structural
Structural examples: silt fence, sediment traps, check dams, etc
Non-structural examples: good housekeeping practices, training, etc.
Describe control measures and timing for each major activity
Plan Contents
Stormwater Control Measures Potential resource: National Stormwater BMP Menu
http://cfpub.epa.gov/npdes/stormwater/menuofbmps Minimum requirements:
Straw or hay bales as BMPs are NOT allowed Designed to retain sediment on site Must be properly selected, installed, and maintained
Follow manufacturer’s specifications and good engineering practices
If it is installed, maintain it or remove it
Plan Contents
Minimum requirements: Remove off-site accumulations of
sediment to minimize offsite impact Remove sediment from sediment
traps or ponds when design capacity has been reduced by 50%
Prevent litter, construction debris, and chemicals from becoming a pollutant source
Address offsite material storage areas used solely by permitted project
Stormwater Control Measures
Stabilization practices Describe vegetative/non-vegetative stabilization
practices used for temporary or final stabilization Temporary stabilization - provided during establishment
and growth of vegetation and/or when earth-disturbing activities will occur again in future
Final stabilization - provides permanent cover and meets termination requirements Soil disturbing activities are complete AND
70% of native background cover established OR Equivalent permanent stabilization measures installed
Stormwater Control Measures
Structural Practices Include description Sediment basin requirements
Required in areas where ≥10 disturbed acres drain to a common location
Must store runoff from a 2 year, 24 hour storm from each disturbed acre OR
Must provide 3,600 ft3 of storage per acre drained Use velocity dissipation devices at discharge
locations and along outfall channel
Stormwater Control Measures
Pollution Prevention Spill prevention and response
Include procedures to prevent and respond to spills and leaks Identify name/position of
employee responsible for spill or leak detection and response
List contact information for facility personnel, emergency response agencies, and regulatory agencies OR reference SPCC plan for site
Plan Contents
Pollution Prevention Waste management
Include procedures on handling and disposal of wastes including: Sediment Construction waste Hazardous waste Demolition/clearing debris Sanitary waste
Plan Contents
Monitoring For discharges subject to numeric limitations (i.e.
asphalt batch plants) Identify
Locations where samples will be collected Linear projects – can identify substantially identical outfalls
Responsible personnel Normal working hours for project Equipment to be used Sample collection procedures
Plan Contents
Plan Contents
Maintenance BMPs identified in SWP3 must be maintained Conduct maintenance before next anticipated
storm event or as necessary to maintain effectiveness
Adding or modifying BMPs must be completed prior to next storm event If impracticable, document situation in SWP3, AND Complete as soon as possible after event
Inspections Identify “qualified person” Identify frequency
Minimum = once every 14 days and within 24 hours of 0.5 inch rain event or discharge from snowmelt
Include inspection form in SWP3 Complete reports within 24 hours of inspection Keep completed reports onsite with SWP3 Must be signed
Plan Contents
Training Requirements Ensure personnel understand permit
requirements prior to beginning work Minimum topics to cover:
Location of stormwater controls Maintenance procedures for stormwater controls Pollution prevention requirements Inspection and documentation procedures
Only required for personnel responsible for inspections
Plan Contents
Corrective Actions Involve repair, modification, or replacement of
stormwater controls Include clean up and disposal of materials from
spills or releases May remedy a permit violation Deadlines for completion – 7 days from time of
discovery Document and modify SWP3 as appropriate
Plan Contents
Non-Stormwater Discharges Identify those that are combined with
stormwater discharges Identify pollution prevention measures Identify location(s) on site map Ensure measures are implemented to reduce
and/or eliminate such discharges
Plan Contents
Contractor Certifications Used at discretion of permittee Not required Places the responsibility for complying with
permit requirements and your SWP3 with the contractor
Requires contractors to abide by your NOI, SWP3, and BMPs
Include this information in SWP3
Plan Contents
Living document Make changes
As conditions at the site change When site inspections indicate BMP is ineffective
Keeping SWP3s Current
Source: http://www.epa.gov/npdes/pubs/exampleswppp_residential.pdf
EPA’s SWP3 Templates and Examples http://cfpub.epa.gov/npdes/stormwater/
swppp.cfm#report http://www.epa.gov/npdes/pubs/
sw_swppp_guide.pdf SWP3 Webcasts
http://cfpub.epa.gov/npdes/courseinfo.cfm?program_id=0&outreach_id=308&schedule_id=962
Resources
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