PETERSBURG, Mich. — The city of Petersburg, Mich., is reporting a water main break and crews are working to make repairs.

A large portion of the city was without water on Friday morning, but it was restored by mid-afternoon. 

Still, residents were asked to conserve as much water possible to prevent the water tower supply from being depleted. 

Residents are also being asked to boil their water until tests show the water is clean.

On Sunday afternoon, Petersburg Mayor James Holeman said if water purity tests come back clean on Monday, residents will no longer have to boil their tap water before drinking.