The Marblehead Water Department will conduct its annual water main flushing program starting at 11:30 p.m. Wednesday.
Flushing will take place from midnight to 7 a.m. Thursday on Green Street, Fox Run Lane, Pleasant Street (Spring Street to Washington Street), Roosevelt Avenue, Washington Street (Atlantic Avenue to Rockaway Street), Curtis Street, Prospect Street, Mystic Road, Central Street, West Street and Maverick Street.
The department said some properties may experience discolored water early Thursday morning and advised residents to run cold water for about 20 minutes until it clears. It said to avoid using hot water or doing laundry until the discoloration is gone.
Residents can contact the water department at 781-631-0102 if the problem persists.
The flushing is done to clear sediment and mineral deposits from water mains to maintain water quality.