Springtown residents must boil water for drinking and cooking through Thursday after a water main broke Tuesday morning.
City secretary Jhanna Bogan said water must be brought to a rolling boil, and that boiling must continue for two minutes as a precaution against harmful bacteria and microbes that could be in the water supply.
Springtown sent water samples to a lab in Fort Worth, but test results are not available yet, she said.
The city will issue another notice when the water is safe to drink.
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In the meantime, people can purchase bottled water.
The 8-inch line that crosses Walnut Creek, which is 3 feet below ground, broke when Texas Department of Transportation crews were cleaning up debris, Bogan said.