A major water main break left most residents of the city of Mascoutah without water for several hours Tuesday. City crews were able to fix the break, but city residents who live south of Illinois 161 will need to boil the water for 48 hours -- through Thursday afternoon.
The only residents and businesses not affected are those north of 161, including MidAmerica Airport and the Huddle House.
About 10 a.m. Tuesday, a 10-inch water line leaving the pump station that feeds the city's water ruptured at the intersection of Railway and Poplar streets. The tower regulates water pressure in the city, according to City Manager Cody Hawkins.
It took water department workers about four and a half hours to repair the break.
Initially, Hawkins estimated 10 hours to complete the job. But he said that was a "worst-case scenario. The guys did a good job," he said of city employees.
Hawkins said the water line break likely was caused by the city's increase in water pressure, which resulted in the old cast iron pipe bursting.
The city of Mascoutah has been replacing old water pipes throughout the city.
"We've replaced about 95 percent of the cast iron lines in the city over the past several years, and we've had a lot less breaks because of it," Hawkins said. "But this is one that we hadn't got to yet."
The Mascoutah pool was closed Tuesday as a result of the water main break. Hawkins said the pool will reopen at 11 a.m. Wednesday.