VTState-AdministeredSWPPP Requirements in Vermont
Vermont administers its own NPDES-equivalent Construction General Permit through VT DEC. Projects disturbing 1+ acre must file a Notice of Intent and implement a SWPPP. The Lake Champlain watershed imposes heightened phosphorus runoff standards. Act 250 overlaps with construction permitting for larger developments and environmentally sensitive areas.
Vermont SWPPP Key Facts
- ✓1-acre disturbance threshold triggers CGP coverage
- ✓Act 250 Land Use Permit required for 10+ acre projects in most municipalities
- ✓Lake Champlain TMDL mandates enhanced phosphorus controls in the watershed
- ✓$0 NOI filing fee
- ✓EPSC Designer certification recognized for inspector qualification
Administering Agency
- Agency
- Vermont Department of Environmental Conservation (VT DEC)
- Phone
- 802-490-6197
- dec.stormwater@vermont.gov
- Website
- VT DEC Stormwater Program
Permit Details
- Permit Name
- Vermont Construction General Permit (CGP)
- Effective Date
- 2017-01-01
- Permit Document
- View Current Permit
SWPPP Thresholds & Triggers
- Acreage Threshold
- 1 acre of land disturbance
Act 250 Land Use Permit required for projects 10+ acres in most municipalities; Lake Champlain watershed triggers additional phosphorus controls under the TMDL.
Inspection Requirements
- Inspection Frequency
- At least once every 7 calendar days and within 24 hours after a 0.5-inch or greater rain event
- Rain Event Threshold
- 0.5 inches in 24 hours
- Certified Inspector
- Required by state
- Accepted Certifications
- VT DEC Erosion Prevention and Sediment Control (EPSC) Designer, CPESC, CESSWI
Inspection reports must be retained on site and available for review by VT DEC upon request.
Penalties & Enforcement
- Max Civil Penalty (Per Day)
- $42,500 per day per violation
- Criminal Penalties
- Up to $25,000/day and/or imprisonment for knowing violations
VT DEC conducts field inspections; non-compliance can trigger NOV and permit revocation.
Permit Fees
- NOI Filing Fee
- $0
- Other Fees
- Act 250 permit fees apply separately for larger projects
How Vermont Differs from Federal Requirements
- ⚠Vermont administers its own CGP rather than deferring to EPA's federal permit.
- ⚠Act 250 adds a state-level land use review layer with no federal equivalent.
- ⚠Lake Champlain TMDL phosphorus standards are stricter than federal CGP baseline requirements.
SWPPP Tips for Vermont
- ➤Coordinate with VT DEC early on Act 250 and CGP timelines — they are separate processes with different review periods.
- ➤In the Lake Champlain basin, use low-phosphorus stabilization materials and size sediment basins for enhanced capture.
- ➤Keep inspection logs on site at all times; VT DEC performs unannounced field visits.
Vermont SWPPP FAQs
Does Vermont require a separate permit for Lake Champlain watershed projects?+
No separate permit, but the CGP includes additional phosphorus runoff controls that apply specifically within the Lake Champlain watershed under the TMDL.
What is Act 250 and how does it relate to SWPPP?+
Act 250 is Vermont's land use and development control law. Projects 10+ acres typically require an Act 250 permit in addition to the CGP. The two permits have overlapping but distinct requirements.
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