Students at Glen Carbon Elementary will be drinking bottled water while some of the water in the village is discolored.
Glen Carbon is undergoing a series of water meter connections to a newly-installed water main on West Main Street.
The project began Nov. 6, and is estimated to take three weeks, attaching residential and commercial users to the main.
The city of Edwardsville provides water to Glen Carbon, but the village services their own lines.
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There was no immediate indication of a boil order in Glen Carbon.
Village officials could not be immediately reached for confirmation, but Edwardsville officials said they were unaware of a boil order in either town.
The valve has been replaced and water is now clear in Troy, according to water department officials.
Elizabeth Donald: 618-239-2507, @BNDedonald