The commissioner shall have authority by order to that effect to require the proprietor of any foundry in which ten or more persons are employed, situated in a locality where there is such system for the disposal of sewage as to make such order practicable, to provide for the use of such employees a toilet room of such suitable dimensions as said commissioner determines, containing washbowls or sinks connected with running water, with facilities for heating the same, such room to be directly connected with such foundry building, properly heated, ventilated and protected from the dust of such foundry. Any person, company or corporation failing to comply with such order shall be fined not more than fifty dollars.