410 ILCS 45/15
Nothing in this Act shall be interpreted or applied in any manner to defeat or impair the right of any person, entity, municipality or other political subdivision to maintain an action or suit for damages sustained or for equitable relief, or for violation of an ordinance by reason of or in connection with any violation of this Act. The failure to remove lead based substances within the time prescribed by this Act shall be prima facie evidence of negligence in any action brought to recover damages for injuries incurred after the expiration of that period. This Act shall not prohibit any city, village, incorporated township or other political subdivision from enacting and enforcing ordinances establishing a system of lead poisoning control which provide the same or higher standards than those set forth in this Act.
410 ILCS 45/15