The Neshaminy watershed
The watershed of the Neshaminy Creek covers an area of approximately 236 square miles (610 km2), 86 percent of which is located in Bucks County and 14 percent in Montgomery County. It is part of the greater Delaware River watershed. The creek's course runs mostly through suburban areas to the north of Philadelphia. However, the course of the creek does run through a few sections of rural and semi-rural terrain, and some forested areas remain. Neshaminy Creek passes through two state parks, Tyler State Park and Neshaminy State Park. Neshaminy Creek has the distinction of having three tributaries named Mill Creek.
The Little Neshaminy Watershed
The Little Neshaminy Watershed is a tributary that flows into a the Neshaminy Creek. It is located mostly in Warrington Township with portions also in Horsham, Montgomery, and Warwick townships. This watershed is approximately 43.2 square miles in size and it flows southeasterly eventually draining into the Delaware rive north of Philadelphia.
Storm water runoff is a major source of pollutants to many streams, rivers, and lakes across the country, including here in Warrington Township. Developed areas are covered with impervious surfaces, like roofs, roads, and sidewalks, which prevent water from soaking back into the soil naturally. Rain travels across those impervious surfaces to a storm drain, picking up pollutants like oil, fertilizers, and animal waste along the way. The pollutant-laden storm water can then make its way, untreated, into the streams and rivers we depend on for recreation and drinking water. For More information download the Little Neshaminy Creek Watershed Pamphlet.
Neshaminy Watershed Association
The Neshaminy Watershed Association mission is to conserve and enhance the water quality and natural resources of the watershed, support improved storm water management in local communities and coordinate restoration efforts in the Neshaminy watershed.