Section 12-402 - Supervision of waterworks, wastewater works, and industrial wastewater works(a) Except as provided in subsection (b) of this section, each waterworks, wastewater works, and industrial wastewater works shall be under the supervision of a superintendent who is certified in the appropriate classification.(b) A waterworks, a wastewater works, and an industrial wastewater works may have a certified operator serve in responsible charge instead of a certified superintendent if approved by the Department and if the facility: (1) Serves fewer than 500 persons;(2) Has minimal treatment requirements as determined by the Department; and(3) Employs no more than two operators.(c) The Department shall enforce this section.