
Below 15, the level that requires action
8 public water companies list Bristol as a place they supply. The biggest is Bristol City of Water, with about 2,688 people. The highest latest result among Bristol's water companies is 3 parts per billion, at Lake Mystic Water. None of the 8 with results was above 15 at its latest test. 5 are small systems serving fewer than 500 people each, such as a mobile home park, a subdivision or a business with its own well.