In 2021 the people who run municipal water systems across the nation had blind taste tests where Boston came out #1.

We also were tops from them in 2014 and have been the top in a similar panel of New England water in 2017.

My theory is that it's so good because when they created the Quabbin reservoir they kicked all of the population of several towns out to flood the valley, so our water is flavored by the tears of the dispossessed.