Water District Drinking Water Source
Kennebunk River Watershed
Alewife Pond is in northern Kennebunk between Alewife Road and Cole Road. This 42 acre pond is the largest in Kennebunk. It is home to 7 species of fish (alewives have not been seen in recent years), and is stocked annually with Brook Trout. The surrounding area is mostly hardwood forest and forested wetland, but there are a few houses and a commercial cranberry operation nearby. Alewife Pond empties into Ward Brook at its eastern edge.
Ward Brook runs out of Alewife Pond and flows southeast through a two mile stretch of woods until it passes under a bridge on Route 35 near the intersection with Downing Road. Here it passes a few homes and farms before entering a small woodland between Route 35 and Maine Turnpike. Ward Brook widens after passing under the highway through a culvert a half mile north of the Kennebunk rest area. It meanders through several more fields and crosses Emmons Road before joining the Kennebunk River.
Punky Swamp is an area of forested and shrub wetland that sits east of the I-95 rest area and just north of Kennebunk High School. It is surrounded by development, but its 2.5 square miles is mostly unfragmented.
The Kennebunk River forms the border of Kennebunk with Arundel and Kennebunkport. It runs in from Lyman near Alewife Road and flows over the Days Mill Dam. The land the river flows past from the dam to the turnpike is mostly rural. It passes numerous farms and just a few houses where it passes through a large culvert on Downing Road. After crossing the turnpike the river enters a mile long stretch of forest and emerges next to Emmons Road. Here Ward Brook flows into the Kennebunk River and it begins to pass more development on the shore. Winding past a few small subdivisions it passes under Bartletts Bridge on Route 1. The river runs another 3 miles past increasing development before it passes under Durrell Bridge off of Summer Street. Further downstream the Kennebunk River begins to transition from freshwater to brackish saltwater. It passes the Cape Arundel Golf Course before it reaches Lower Kennebunk Village where the river is maintained as a navigable channel with several marinas. Finally, the river meets the Atlantic Ocean at Goochs Beach amidst high development and boat traffic.
Mousam River Watershed
Old Falls Pond pools behind the Old Falls Dam on the Mousam River, where the borders of Kennebunk, Lyman, Alfred, and Sanford meet. It is mostly surrounded by deciduous forest, with a small subdivision to the north. Old Falls Pond has carry-in boat access off of Old Falls Road.
Cold Water Pond is situated just north of the Kennebunk Plains. It is surrounded by forest except for at its outlet where there is a dirt road right up to the shore. Cold Water Pond drains into Cold Water Brook which runs north for only a third of a mile before joining the Mousam River.
Kennebunk Plains Pond lies in the middle of the Kennebunk Plains between Webber Hill Road and Maguire Road. It is 3 acres in size and has only two buildings on its shore. The outlet of the pond is at the eastern end. It passes through a culvert under a dirt road and becomes Day Brook.
Day Brook drains out of Kennebunk Plains Pond. It runs parallel to Maguire Road for 1.5 miles before crossing Whitten Road and the turnpike. The brook then turns east, running along High Street for 1.5 miles, where it runs out into an open farm field for 500 feet. Passing through an area of higher density houses Day Brook crosses Cat Mousam Road and then joins the Mousam River.
Fernald Brook originates near the intersection of Route 1 and Heritage Lane, among a number of commercial facilities. It flows southeast through a large forested wetland and crosses under the Boston & Maine Railroad tracks. The brook runs through mostly undeveloped land until it reaches Brown Street, where it forms a small pond behind a dam on a farm. From there it meanders through a small marsh area and then joins the Mousam River.
The Mousam River enters Kennebunk at Old Falls Pond. It passes north of the Kennebunk Plains through an area of deciduous forest. As it gets closer to Alfred Road the river flows past several large subdivisions before it reaches the bridge on Mill Street. The Mousam River flows over two dams and under an old trolley bridge within a half mile stretch upstream of the turnpike. Crossing under the turnpike the river passes very close to several large parking lots and buildings. The development along its banks increases as the river approaches Kennebunk’s Upper Village. The last portion of the Mousam River flows through scattered residential neighborhoods and passes over the final dam at Route 1. As it runs between Brown Street and Sea Road passes the Kennebunk Sewer District Waste Treatment Plant, crosses Western Avenue, and empties into the Atlantic Ocean at Parson’s Beach.
Little River Watershed
Dog Brook flows out of a forested wetland on the Kennebunk and Sanford border. It runs for 1.5 miles, through undeveloped forest land, converges with Branch Brook.
Branch Brook forms Kennebunk’s border with Wells. It begins in a forested area southeast of the Sanford Airport and runs past almost no development for 6 miles until it reaches Route 1. There it passes over a dam, crosses under the road, and enters the Rachel Carson National Wildlife Refuge, where it joins the Little River.
The Little River runs into Rachel Carson National Wildlife Refuge from Wells. At this point the river forms a tidal estuary that is home to numerous species. The Little River empties onto Laudholm and Crescent Surf Beaches where it meets the Atlantic Ocean.