N.Y. Village Law § 11-1106
If a resolution to establish a system of water works be adopted, the board of water commissioners shall proceed to construct such system accordingly. It shall prepare a map and plans showing the sources of water supply and a description of the lands, streams, water or water rights to be acquired therefor, and the mode of constructing the proposed water works and the location thereof, including reservoirs, mains, distributing pipes and hydrants. The water commissioners, their agents, servants and employees, may enter upon any lands for the purpose of preparing such map and plans. The map and plans shall be filed with the village clerk, and a certified copy of such map shall also be filed in the county clerk's office of each county in which any of the lands are situated. The board of water commissioners may acquire, in the name of the village, by purchase, if it can agree with the owners, or otherwise by condemnation, any land, streams, water or water rights necessary for such system. The board may amend the map and plans at any time and such amended map shall be filed in the office of the village clerk, and of the county clerk, in like manner as the original. The board may construct such water system by contract or otherwise, and may appoint, and at pleasure remove, a superintendent to take charge of the system, and may fix his compensation or may, by resolution, provide that any other village officer shall also act as the superintendent of water.
N.Y. Village Law § 11-1106