The water pollution control plant in Arlington, Virginia, is less than half a mile from Ronald Reagan Washington National Airport and across the street from a residential neighborhood.
The entire back side of the 40 mgd advanced treatment facility is bordered by a stream called Four Mile Run. Between the stream and the plant fence is a trail that interconnects with other trails along the stream to form a 9-mile route enjoyed by pedestrians and bikers.
“The trail is really popular and heavily used,” says Tom Broderick, water pollution control bureau chief. A ribbon-cutting in September 2017 celebrated completion of a
