Republicans, Pritzker clash over plan to reopen Sterigenics’ Willowbrook facility Ryan Voyles 5 years ago Several Republican lawmakers said last week they will continue to do whatever possible to ensure that Sterigenics does not reopen its Willowbrook facility.To access this content, you must purchase 1 Year Health News Illinois Subscription or 1 Year Group Subscription - Up to 5 Users, or log in if you are a member.