↖Spruce Run Reservoir
Spruce Run and Round Valley Reservoirs
The Spruce Run and Round Valley Reservoirs are part of the New Jersey Water Supply Authority’s Raritan Basin Water Supply System which serves 1.5 million residents of central New Jersey. Both reservoirs are located in western Hunterdon County within Clinton Township and Union Township. The reservoirs are connected to natural river systems, which enable water to be stored and moved around within this service area. Balancing the needs of everyone that relies on this water is a critical part of the Authority’s work.