The DuPage County Health Department is offering a service to Willowbrook residents that receive their potable water from ‘Wells’ and were affected by the recent flood. If requested, the DuPage County Health Department will come out to your house and test the water quality free of charge. Interested residents should call (630) 682-7400 for more information. Information can also be found by following the link below to DuPage County Health Department's website.