Norwich — Water service will be shut off temporarily Monday to about 40 customers on Allyn and Dunham streets and Wilmot Avenue for approximately nine hours to allow crews to install a new water main, Norwich Public Utilities has announced.

Water service will be shut off at 7 a.m. and is expected to be restored by 4 p.m. Monday.

The shutoff will allow for a contractor to complete installation of a new water main for the planned 120-unit Westledge Apartment project.

There may be a minor impact on traffic as a result of the equipment and personnel working on this project, NPU officials said. NPU has arranged for traffic control flaggers to assist with traffic flow through the project area.

Once water service is restored, in the event a customer’s water seems slightly discolored, they should open a cold water faucet and allow the water to run for three to five minutes, which should resolve the issue.