Water main breaks can happen at any time. Breaks tend to occur more often in winter because of ground movement when it freezes and thaws, which puts stress on the pipes. Staff will notify every customer by knocking on every door within the impacted area. If a customer is not home or work occurs during late overnight hours, a front door hanger will be placed at each home. Emergency situations may require the water supply to be limited before staff can knock on doors and hang door tags. During normal weekday City business hours, efforts are also made to post notices and information on the City of Warrenville Facebook page and on the City Web page. In the rare instance a boil order is required, staff will knock on doors and work to contact customers by phone, the City website, and Facebook.