Is there lead in Killingly's tap water?
2.1PPBLead in Ctwc - Crystal's water at the latest test, in 2026
Below 15, the level that requires action
Below 15, the level that requires action
5 public water companies list Killingly as a place they supply. The biggest is Ctwc - Crystal, with about 6,378 people. The highest latest result among Killingly's water companies is 2.1 parts per billion, at Ctwc - Crystal. None of the 5 with results was above 15 at its latest test. 4 found too little lead to measure. 3 are small systems serving fewer than 500 people each, such as a mobile home park, a subdivision or a business with its own well.