Overview

• Crews worked through the night to drain roughly 10 miles of pipeline, an estimated 3.5 to 4 million gallons, with repairs expected to take one to two hours once the line is empty.
• Officials shut the Watertown treatment plant because aging valves could not isolate the break on the Huntingdon Avenue transmission main, according to the mayor.
• Only a small number of customers currently lack water, but higher elevations have already seen losses and outages may expand during the day, prompting Wednesday's school closure.
• Watertown-Oakville implemented measures to bolster storage for fire protection as the shared supply remains temporarily out of service.
• Work was briefly paused by an overnight thunderstorm, and the Bureau of Water has opened an investigation into the cause of the break.