(l) The Illinois Commerce Commission shall establish an Advisory Committee consisting of a representative from each of the following: utility operator, JULIE, excavator, municipality, and the general public. The Advisory Committee shall serve as a peer review panel for any contested penalties resulting from the enforcement of this Act. The members of the Advisory Committee shall be immune, individually and jointly, from civil liability for any act or omission done or made in performance of their duties while serving as members of such Advisory Committee, unless the act or omission was the result of willful and wanton misconduct.