Illinois Statutes Chapter 415. Environmental Safety § 30/5. Department powers and duties

(a) Adopt and publish, and from time to time amend rules and regulations as hereinafter provided;

(b) Commencing no later than January 1, 1988, issue permits for the construction, modification, abandonment, or change in depth of any water well other than community public water systems and monitoring wells;

(b-5) Commencing no later than one year after the effective date of this amendatory Act of the 97th General Assembly, issue permits for the construction, modification, and abandonment of closed loop wells; and

(c) Exercise such other powers as are practical and reasonably necessary to carry out and enforce the provisions of this Act.