415 ILCS 35/5

The Department has general supervision and authority over the installation of water well pumps and equipment and for the administration of this Act. With respect thereto it shall: (a) Adopt, publish and amend rules and regulations as hereinafter provided; and (b) Conduct public hearings, upon not less than 30 days prior notice published in one or more newspapers of general circulation in the state, in connection with proposed rules and regulations and amendments thereto; and (c) Exercise such other powers as are practical and reasonably necessary to carry out and enforce the provisions of this Act.