stormwater

Antidegradation limits incremental lowering of water quality in lakes, rivers, and wetlands when applied during a permit review process. Any lowering of water quality must be found to be necessary to avoid substantial economic and social impacts. However, the surface water’s uses and values established in State law, such as swimming, boating, and fishing, must always be maintained and protected. Also included among those uses and values are the use of a surface water by fish, wildlife, and other living things, as well as the physical habitat that supports aquatic life. 

What is a three-acre site?

When do I need to apply?

List of three-acre sites

What is a "three-acre site?"

General Permit 3-9050 serves as the permit for "three-acre sites" as required under the Vermont Clean Water Act.  A “three-acre site” is an impervious surface of three or more acres that:

Trainings

Past Trainings

November/December 2017 Update

Two trainings were offered in November and December of 2017 to present and discuss lessons learned and updates to the application review process under the 2017 VSMM

November/December Update PowerPoint (pdf)

Stormwater Manual Overview

Updated 2/08/2024

The final proposed Stormwater Permitting Rule was approved by the Legislative Committee for Administrative Rules (LCAR) on 2/14/2019.  The final adopted rule was filed on 2/25/19 and went into effect on 3/15/19.

Stormwater Permitting Rule – Final Adopted