Editor's note: This article has been updated with additional comments from Sherman officials.
On Thursday, the city of Sherman officially rescinded the boil notice it issued Wednesday morning.
The Texas Commission on Environmental Quality required the city to issue the boil water notice after a water line went down for a period after early morning storms on Wednesday. Sherman’s public water system has since been notified by TCEQ it has completed the necessary steps to ensure the water quality is safe to drink.
Sherman Director of Utilities Mark Gibson said the main was repaired quickly and the city rescinded the notice as early as possible.
“The main was down for roughly an hour and a half to two hours,” Gibson said. “It was the same location as before. Everything has been fixed at this point.”
The water main break occurred on the same pipe that burst in December, and left some areas of Sherman under a boil order for nearly two days. Both breaks appeared to be caused by heavy rains that washed out the soil beneath the water line and caused a collapse, Community and Support Services Manager Nate Strauch said on Wednesday.
The break led to widespread low pressure and outages across the city in areas served by ground water early Wednesday morning. City officials described the area affected by the outage as the eastern side of Sherman, which includes areas along both sides of U.S. Highway 75, but generally to the south of U.S. Highway 82. Areas served by surface water were not impacted by the outage.
Gibson said Sherman conducts tests looking for what he described as "indicator organisms" that are used to determine whether a greater threat might exist. Gibson said roughly half of the city’s water comes from wells, while the rest is supplied by Lake Texoma. Whenever a water line goes down, he said the water pressure declines, which triggers the need for a boil notice. He said once a notice is in effect, it takes at least 24 hours before the city can rescind the notice.
With the repeated breaks, Strauch said Sherman will be looking at relocating the line so the outage doesn’t happen again in the future.
Any customers in the area who have questions can contact Gibson at 903-892-7210 or email firstname.lastname@example.org. Those with additional questions can also contact TCEQ at 512-239-4691.