N.Y.C. Admin. Code § 24-332: § 24-332 Use of water through hose.

It shall be unlawful for any person to wash any street, sidewalk, areaway, steps, building or other place in the city by means of a hose or piping, or to use water through a hose or sprinkler for watering lawns or gardens, or to operate any outside shower where the water runs upon a street, sidewalk, or other public place between the first day of November and the last day of March following.