Piscataqua River Watershed
Location:
The Piscataqua River watershed extends east and west of Route 100 and the Maine Turnpike from Falmouth to Gray. It extends into the towns of Cumberland and Windham.
Size:
The Piscataqua River watershed is approximately 21 square miles; it makes up 10% of the Presumpscot River watershed system.
Population:
The population of Piscataqua watershed is a just over 4,000, or approximately 6% of the population in the Presumpscot River watershed system.
Impervious Surfaces:
Impervious surfaces are those surfaces in the landscape that cannot infiltrate rainfall, such as rooftops, pavement, sidewalks, driveways and compacted earth. Impervious surface areas of 10% or greater are often correlated with reduced water quality. Approximately 8% of the Piscataqua watershed, more than 1,000 acres, is comprised of impervious surfaces.

