N.Y. Village Law § 14-1400
The board of trustees of any village may, upon its own motion or shall upon the petition of twenty five owners of real property within the village, according to the last completed village assessment roll, cause a map and plan to be prepared for a complete sewerage system for the village. The board of trustees may establish, extend and maintain a sewerage system, including laterals, therein in accordance with the provisions of this chapter, and may, as provided by this chapter, abolish an existing sewer or wastewater disposal district created under the town, county or general district law, coterminous with or wholly included in the limits of the village, and use the sewerage system of such abolished district as a complete village sewerage system or as a part or extension of any existing village sewerage system. Before taking any proceeding for the construction of a sewerage system or any part thereof the board, at the expense of the village, shall, unless such map and plan have been heretofore officially approved by the state commissioner of health and copies filed in the state department of health and in the office of the village clerk, cause a map and plan of a permanent sewerage system for such village to be made, with plans and specifications for sewage treatment or disposal works. It may also include any existing sewerage or private on-site wastewater disposal system in the village, which on examination by the village engineer shall be found feasible and proper to incorporate or include in the proposed system. Such map and plan shall be comprehensive and shall cover all portions of the village, but the village may construct the whole of the said system or may temporarily omit any portion thereof until such portions may be necessary, subject to the approval of such omission by the state commissioner of health as hereinafter provided. Such map and plan shall be submitted to the state commissioner of health for his approval, and if approved shall be filed in the office of the state commissioner of health. A copy thereof shall also be filed in the office of the village clerk. The map and plan may be amended, with the approval of the state commissioner of health, and when so amended and approved shall be filed in the same offices as the original. No work of any kind shall be done on or for the construction, extension, reconstruction, removal or modification of any system of sewerage or of any part thereof until a map and plan covering the entire system shall first have been duly approved and filed as above provided, and in the execution of the construction, extension, reconstruction, removal or modification of any system of sewerage or of any part thereof, no deviations from the plans as finally approved and filed shall be made until plans or descriptions adequately showing such deviations are first approved and filed as above provided. Whenever the board of trustees of the village shall deem it desirable to the interests of the village that a portion of the permanent general system of sewers, private on-site wastewater disposal systems and sewage disposal thereof may be temporarily omitted or deferred, it shall certify that fact in writing to the state commissioner of health, designating by a map or otherwise the portions of the system to be omitted, or the portion not to be omitted, and on receipt of the same the state commissioner of health may approve of such temporary omission and shall certify his determination to the board of trustees of the village. The term "sewerage system" as used in this article shall be understood to mean a complete system for the removal, treatment or disposal of sewage or wastewater, including private on-site wastewater disposal systems. The village board of trustees is authorized to establish and impose sewer rents pursuant to the provisions of article fourteen-f of the general municipal law.
N.Y. Village Law § 14-1400