Urban Impaired Stream Watersheds

GIS Data and Maps

This is a list of the urban impaired stream watersheds listed in Chapter 502 Stormwater Management Rules. If a proposed development is located near the boundary of the watershed, determination of whether or not the development lies within the watershed of an impaired stream should be based on field confirmation of the drainage at the site of the proposed development.

For more information contact: Jeff Dennis (207) 215-6376

  • Auburn
  • Augusta
  • Bangor East
  • Bangor West
  • Brunswick & Topsham
  • Caribou
  • Freeport
  • Lewiston
  • Limerick
  • Lincoln
  • Lisbon Falls
  • Portland
  • S. Portland East
  • S. Portland West
  • Saco Area
  • Skowhegan
  • Winthrop