St. Clair lifted its water boil advisory Monday morning after a main line break Sunday night forced low or no water pressure throughout much of the city.

The advisory was lifted at about 8:30 a.m. Monday. The city sent a CodeRed phone blast to subscribers making the announcement.

The boil advisory was deemed necessary after a 12-inch water main north of Interstate 44 broke Sunday evening. Officials believe it happened at about 6 p.m. and affected residents in a widespread area throughout the city.

St. Clair Mayor Ron Blum had told The Missourian on Sunday night that city crews were working on isolating and fixing the break and that pressurized water service should be available later that night.

Blum had informed The Missourian at about 8:15 p.m. that the water line break had been found and that crews were working to repair it so pressure can return to normal for residents throughout the city.

Blum said at 8:15 p.m. that he hoped to have "water pressure returning shortly."

Shortly before 8 p.m. Sunday, City Administrator Rick Childers said crews were focusing on a section of a 12-inch water main north of Interstate 44 that appeared to be the cause of no or low water pressure throughout St. Clair on Sunday night.

At about 6 p.m., the low or no water pressure complaints began being reported. Shortly thereafter, city officials were trying to determine what caused the apparent widespread problem throughout much of St. Clair.

Blum said at about 6:30 p.m. that he was working with city employees, including St. Clair Police Department officers and the Public Works Department, to try to find the source of the problem. At that time, the mayor guessed there probably was some kind of major water line break.

Low or no water pressure had been reported on both the north and south sides of the city. Blum confirmed it is widespread.

A CodeRed alert message was sent to subscribers at about 7:30 p.m. Sunday requesting that residents conserve water as best they can until the situation is resolved. Residents also may boil water until things return to normal.