§ 75. Limitation on acquisition of water rights in Dutchess county. Notwithstanding the provisions of any general or special law, a municipal or other corporation shall not have power to acquire by condemnation for the purpose of increasing or improving its water supply, any stream or water, situated outside the boundaries of such municipal corporation, that flows through the town of Fishkill, Wappingers or Poughkeepsie into the Hudson river, which stream or water affords the chief source of power to, or is necessary in the process of manufacturing, washing or dyeing in, a mill situated in a city or village within the county of Dutchess, the inhabitants whereof are chiefly dependent on such mill for employment and support.