This cache will bring you to Van Buskirk Island, which is listed as a county park. The artificial island created in the Hackensack River in 1802 originally served as a dam for various mills. It then became home to an abandoned water treatment facility in 1881. The site was run by the Hackensack Water Company which merged with United Water in the 1980s. United Water merged with Suez North America a few years back, and they now operate in a facility a few miles down the road in Haworth. In 1990, the facility was closed and the land was given to the town of Oradell. Since then, there have been many debates over its usage and the facility is largely in disrepair. On one side, many people favor conservation and historic preservation while others want it to be turned into a recreation area or some other use. In 2011, the state awarded $704,000 to fix up the facility and open it to the public. However, that has yet to happen.
When visiting the cache, I encourage you to read the signs about its history and proposals for a county park/museum.