Skip to main content

Stormwater Construction Program

Under the National Pollutant Discharge Elimination System (NPDES), Vermont is authorized to issue permits for the discharge of stormwater from construction activities. The NPDES permit program addresses water pollution by regulating point sources that discharge pollutants to waters of the United States. Created in 1972 by the Clean Water Act, the NPDES permit program is authorized to state governments by EPA to perform many permitting, administrative, and enforcement aspects of the program. 

Under this authority, Vermont implemented the Construction General Permit (CGP) 3-9020 to authorize permittees to discharge stormwater runoff from construction activities. Construction activities are broken into three risk categories. Two risk categories authorized by the general permit: Low Risk and Moderate Risk. The third risk category are for projects that pose a higher risk, which file an application for an Individual Permit. These include projects that propose to exceed a 14-day stabilization schedule and projects that will concurrently disturb more than 5 acres of earth."Image of Construction Access"

When is a Construction Stormwater Permit required?

Coverage under this permit must be obtained for:

  1. Construction activities that result in a total earth disturbance of equal or greater than one acre of land area;
  2. Construction activities that result in a total earth disturbance of less than one acre that are part of a larger common plan of development that will ultimately disturb equal to or greater than one acre of land area.
  3. You may work through this Decision Tree to determine if your project requires a permit under the definitions of Common Plan of Development and/or Independent Project.
  4. Please fill out the Determination form if you are unsure if your project requires a Construction Stormwater Permit.

Please see the Permitting and Outreach link above for further details.


Highlights and Updates: 

*To ensure consistent application submittals and a more efficient application review, the EPSC Plan Set Reference and Requirements have been explained further and are outlined in the Plan Set Reference and Requirements form. Please begin submitting all applications with the required items in the updated form starting December 18, 2023* - 12/6/23

*Please see the References and Forms link above to view the updated forms for use on your projects!* - 3/2/23