
(KMOX) — Much of the Metro East, from Scott Air Force Base to Millstadt, is under a boil order until at least midday Thursday.
According to Illinois American Water, a contractor working at the company’s Metro East water treatment plant near East St. Louis hit a 24-inch water main, causing a drop in water pressure.
A company spokesperson Terry Mackin said there is no evidence of contamination, but EPA regulations require a boil order be issued anytime water pressure drops below 20 pounds per square inch in any part of a community’s distribution system.
About 1.5 million customers are affected, according to Mackin.
Customers in the affected area should bring their water to a rolling boil for 5 minutes before using for drinking or cooking. Water is OK for bathing, washing and other common uses.