The Gelhaus family re-acquired the Keansburg Amusement Park in 1995, following a 20-year absence after Henry Gelhaus had sold the property in 1972. The return of the Gelhaus family as proprietors of the amusement park sparked a resurgence of interest in the town. Upgrades were made to the amusement park grounds and a water park was constructed. Runaway rapids was opened in 1996 on the site of the former Crystal Pool. The Keansburg Waterfront Public Library, founded in 2004, was the result of a concerted effort on the part of townspeople and the borough government to provide a high quality library with resources that address the needs and interests of the community. In 2012, the town added a $3 million desalination plant with Federal Stimulus Funds and a low interest loan from the N.J. Environmental Infrastructure Trust, which greatly improved the quality of the water supply. The town had previously stopped providing well water, as saltwater intrusion into the aquifer had exceeded environmental protection standards. The new facility removes contaminants from the water supply through reverse osmosis.