N.J. Stat. § 48:14-20
Every water power company organized to construct one or more dams in any river or stream tributary to Barnegat bay for the purpose of developing and selling water power and generating, distributing and selling electricity, may cause examinations and surveys to be made of its proposed dams, reservoirs, ponds, locks, weirs, gates, bridges, canals, race and power stations, as well as the land that may be overflowed by the erection of the dams. It may enter upon any lands or waters for the purpose of making such examinations and surveys, subject to liability for all damage done.
A survey and map shall be made of the land to be taken or entered upon, which map shall be signed by the president and secretary of the company and filed in the office of the clerk of the county in which the lands shown on the map are situated.
N.J.S. § 48:14-20