Officials on Sunday lifted a boil water advisory enacted Thursday over parts of southwestern Butler County.

According to Paul Cornetti, consulting engineer for the Harmony Borough Water Authority, the system has now been deemed safe, after a pipe was fixed Friday and testing has been completed over the past two days.

“We have to show there's no bacteria in the water for two consecutive days,” said Cornetti on Sunday. “We just got a call back from the lab that the water is safe.”

The authority placed the advisory into effect Thursday after a pipe broke along Nickel Road, just east of Interstate 79.

According to Cornetti the broken pipe resulted in a loss of positive pressure, and regulations require an immediate advisory in those cases.

The authority provides service to residents of Harmony and parts of Jackson Township.

The Seneca Valley secondary campus at Seneca School Road moved to remote instruction for classes Friday due to the advisory.

As of Sunday, there was no mention of further remote learning due to the issue.