VADER, Wash. -- The Washington State Department of Health is advising Lewis County residents in Vader and Enchanted Valley to boil their water.

The department's advisory stated that an early morning water main break Sunday in Vader caused a loss of water pressure in the town's water system.

City crews are working to repair the water main break, KIRO 7 reported.

Once the water system pressure has been restored, customers should continue to boil their water.

The boil water advisory affects about 350 homes in Vader and Enchanted Valley.