Boil water advisory enters second day in nine CT towns

Thousands of Connecticut Water Company customers in nine towns are under a boil water advisory after bacteria was detected in a water sample in Essex. The affected towns are Deep River, Essex, Haddam, Chester, Old Saybrook, Madison, Guilford, Westbrook, and Clinton. Residents must boil tap water before consumption, and food establishments in these areas have been ordered to close. All-clear (clintonct.org, 12.07.2026, 23:23): The boil water advisory has been lifted. Repeat water testing confirmed the water now meets all state and federal drinking water standards and is safe to use. Update (Hartford Courant, 12.07.2026, 23:23): E. coli was detected in a routine water sample on Friday in Essex. Residents must boil tap water for one minute. The advisory remains in effect until further notice. All-clear (WTNH, 12.07.2026, 23:24): The advisory was lifted on Saturday, July 11, 2026. Update (WTNH.com, 13.07.2026, 23:25): The advisory affects customers in the Chester and Guilford water supply systems. The boil water advisory began on July 10, 2026.

Location

Deep River, Essex, Haddam, Chester, Old Saybrook, Madison, Guilford, Westbrook, Clinton, Connecticut

Country

🇺🇸 USA

Start

10/07/2026, 02:00

End

11/07/2026, 02:00

Event type

Boil water advisory, Microbiological, Limit exceeded

Status

Lifted

Region

Connecticut

Last updated

13/07/2026, 23:25