Operational Stormwater Permitting

Permit Information

Application Materials and Instructions

Information for "Three-Acre Sites"

Do you need an operational permit?

Do you need assistance with your operational permit?

Additional Information

What's New?

As of 12/18/2024, our list of "Three-Acre Sites" has been updated. Please scroll down below to the "Information for "Three-Acre Sites"" section to see the updated list.  

See the "Information for "Three-Acre Sites"" section below for a standard response along with questions and answers regarding H.481, an act related to stormwater management.

Permit Information

• General Permit 3-9050 for stormwater discharges from new development, redevelopment, "three-acre sites", and previously permitted stormwater discharges.
• Individual Stormwater Permit (INDS) for stormwater discharges from projects which utilize Alternative Stormwater Treatment Practices (STPs) and other limited circumstances.
• Individual Offset Project (INDO) for projects to improve the watershed.  

Application Materials and Instructions​

• Application Requirements for Operational Permits document (updated January 2022)
• 2017 Vermont Stormwater Management Manual Rule and Design Guidance describes the treatment standards and practices for operational permits
• Application instructions, forms and worksheets for all operational permits

Information for "Three-Acre Sites"

• Are you a "three-acre site"?
• Funding questions?
• H.481 Standard Response with Questions and Answers
• Guidance documents
  • Stormwater Impact Fee Guidance and Payment Instructions
  • Isolated Impervious Surface Guidance for Existing Stormwater Retrofit Sites

Do you need an operational stormwater discharge permit?

• Guidance on half-acre new development and/or redevelopment projects
• Refer to the flow chart below for guidance on whether or not your project needs an operational permit. 
  • Flow Chart 
    • Download the file onto your computer and open via Adobe Acrobat (or a similar program) to print. 

Do you need assistance with your operational stormwater discharge permit?

• District Contact Map for Operational Permitting
• List of Stormwater Engineering Firms
• Designer Training & Examples

Additional Information

• General Permit 3-9030  Residual Designation Authority (RDA) required for designated discharges to Bartlett, Centennial, Englesby, Morehouse, and Potash Brook watersheds.  Renewals of 3-9030 permits will be issued under 3-9050.
• Ch22 Rule Updates