NEILLSVILLE, Wis. (WEAU) -- A boil water advisory in a city that had a major water main break Thursday could be lifted later this week.

Water samples from Neillsville's water system were taken on Monday. Another sample will be taken on Tuesday. Mayor Steve Mabie says the results are expected Wednesday morning. The city needs two clean samples from two different days before the advisory is lifted.

Mabie says crews found the source of the break late Friday night on 8th Street. It was about 25 feet from the fire house. The break drained the water tower, and flooded part of the fire hall. It was fixed early Saturday morning.