Presumpscot Watershed Initiative

Geospatial Database

Instructions: click on any of the numbered sites
on the map above to view details and photos.

East Branch Piscataqua River Watershed

Location:

The East Branch Piscataqua River watershed is located primarily in Cumberland and Falmouth, but extends into Yarmouth and North Yarmouth.

Size:

The East Branch Piscataqua River watershed is one of the larger sub-watersheds in the Presumpscot River watershed system. At just under 20 square miles, it makes up about 10% of the Presumpscot River watershed system.

Population:

The population of the East Branch Piscataqua River watershed is a little over 6,000, or 10% 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 East Branch Piscataqua River watershed, more than 900 acres, is comprised of impervious surfaces.

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