North Jersey Water Supply Commission oversees the operation of the largest water-supply system in the State of New Jersey, including more than 95-square-miles of watershed area, two major reservoirs, two river-diversion pumping stations, and a 140-million gallon/day (MGD) water filtration plant. At peak capacity, the NJDWSC's facilities can supply over 200-MGD of water to its contracting municipalities and United Water New Jersey (UWNJ), thereby serving the water needs of more than 2 million people in Northern New Jersey.

The Commission, an independent authority of the State, serves as a trustee representing the joint interests of the contracting municipalities which share in regional water supply projects.

The following links provide more detailed information about the NJDWSC's history, facilities, and operations: