About 2 p.m. Wednesday, a contractor accidentally struck a water main causing the problem.
Water in the River Bend subdivision as well as Lincoln School is impacted by this order.
The area involved is bordered by Lawrenceville Road, Bonuf Avenue, Biz Route 20 and Popular Grove Road.
Anyone using tap water in this area should boil it first before consuming.
The order is in effect until further notice according to Jim Grimes, Superintendent of Water for Belvidere.