Section 225 ILCS 705/13.15(a) Bathhouses, change rooms, and sanitary toilet facilities shall be in a location convenient for the use of the miners.(b) All bathhouses shall be constructed to provide at least 10 square feet of unobstructed floor space for each employee using the facility at any given time. In the computation of the area to be dedicated to employee floor space, the space taken up by benches may be included. Space taken by baskets, lockers, and other obstructions shall not be included in the computation. This requirement shall apply to all bathhouses constructed or expanded after the effective date of this 1977 amendment. This Section shall not apply to a bathhouse constructed or expanded after the effective date of this 1977 amendment if, and only if, valid contracts for such construction or expansion have been entered prior to the effective date. Evidence of such contracts shall be submitted to the Department prior to the beginning of such construction or expansion and no construction or expansion which fails to meet these requirements shall commence without the express approval of the Department.