The decision on the future of the project lay with the Delaware River Basin Commission, the governing board of which included the governors of the four states in the Delaware River Basin (New York, Pennsylvania, New Jersey and Delaware) and a federal representative who reported to the U. S. Secretary of the Interior. The project's momentum was slowed in the early 70s by objections voiced by New Jersey Governor William T. Cahill, who was concerned with land acquisition issues raised by local residents, by the potential adverse environmental impacts of the project, and by the costs that would be imposed on New Jersey to provide sewerage and highways to serve growth in Northwest New Jersey that would be prompted by the recreation area that would surround the dam. The recreation area was needed to provide the economic benefits needed to allow the U. S. Army Corps of Engineers, which would build the dam, to demonstrate that it had a positive ratio of benefits to cost. The further studies prompted by Cahill's objections and by question raised by his successor, Governor Brendan T. Byrne, in 1974 revealed that better and more economical options existed to reduce flood damage and improve water supply than the dam. The dam was disapproved by a majority vote of the Delaware River Basin Commission in 1975.