SWP3 Requirements - the Oklahoma Department of Environmental
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Transcript SWP3 Requirements - the Oklahoma Department of Environmental
Stormwater Pollution Prevention
Plan (SWP3) Requirements
Joe Willingham, P.E.
Professional Engineer III
Industrial Wastewater Enforcement Section
Water Quality Division
Department of Environmental Quality
Outline
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
General Issues
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
Making SWP3s Available
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
Signatory Requirements
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.
Certification Statement
Submitting SWP3s to DEQ
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
Where to Send NOI & SWP3
Department of Environmental Quality
Environmental Complaints and Local Services
Storm Water Unit
707 North Robinson, P.O. Box 1677
Oklahoma City, OK 73101-1677
FAX (405) 702-6226
Plan Contents
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
Stormwater Control Measures
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
Stabilization Practices
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
Velocity Dissipation
Plan Contents
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
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
Maintenance
Plan Contents
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
Note Certification Statement
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
Training Log
Example from EPA’s
SWP3 template
Can create your own
Must be kept with
SWP3
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
Allowable Non-Stormwater
Discharges
Source: EPA’s SWP3 Template
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
Examples
From EPA’s SWP3 Template
From Addendum D of OKR10
Keeping SWP3s Current
Living document
Make changes
As conditions at the site change
When site inspections indicate BMP is ineffective
Source: http://www.epa.gov/npdes/pubs/exampleswppp_residential.pdf
Resources
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?progra
m_id=0&outreach_id=308&schedule_id=962
Questions, Comments, Discussion