New York Laws
Title 1 - Sanitation
377 - Drinking Water.

ยง 377. Drinking water. Every mercantile establishment, restaurant, and
every station, terminal or car barn where women employees of a street,
surface, electric, subway or elevated railroad report for duty shall
provide at all times for the use of employees a sufficient supply of
clean and pure drinking water, and if placed in receptacles, the same
shall be properly covered and kept clean.