The Department of Natural Resources shall investigate any and all complaints within the State that any person, company, association or corporation is attempting to assert any lawful rights or exclusive privileges or franchises with reference to docks, landings, wharves, or the free and unobstructed access to, or egress from any navigable body of water, and if it finds upon investigation that any complaint is well founded, it shall enter such order as may be necessary to correct the wrongful act.
615 ILCS 5/10