While the boil order was lifted for customers in Butler and Center townships, Pennsylvania American Water crews dealt with a water main break in the city.

Gary Lobaugh, the company's external affairs manager for Western Pennsylvania, said testing revealed acceptable levels Monday and Wednesday.

“We're back to normal,” he said of the boil order. “It's a resumption of normal service.”

Meanwhile, water crews found themselves surrounded by Butler Area School District students waiting for the bus on Wednesday morning.

The men surveyed a break in a 6-inch water main on Fourth Avenue near Michelle Krill Field at Historic Pullman Park.

Lobaugh said the line was more than 80 years old.

“It definitely lived out its normal life span,” he said.

About 40 customers on Fourth Street were without water as crews shu t off the valve to repair the line.

Service resumed around 3:30 p.m., Lobaugh said.

He said the line will be monitored for additional breaks or diminished water quality, which would determine whether it will be replaced.

“We want to be mindful of making prudent investments,” Lobaugh said of decisions on whether to repair or replace an aging line.

The situation did not appear to affect the school buses picking up students as a small amount of water flowed in the area.