MECHANICAL REVISION(S): 1. A mop sink exhaust fan was added for the new mop sink, vented through the exterior wall. 2. Revised Minimum Code Required Outside/Exhaust Air Ventilation Rates schedule. PLUMBING REVISION(S): 1. Sanitary and domestic service were designed for the new mop sink and electric water cooler. 2. Specifications for the new mop sink and electric water cooler were scheduled.