About 1 in 4 Connecticut homes draws from a private well. No utility tests them. The well owner is the water company: sampling, treatment, and re-testing are all on the homeowner.
Source: CT DPH, 2020 census basisCity water is tested, up to a point
Utility water is tested and regulated at the plant, and that work is real. But the utility's responsibility ends at your meter. Lead usually enters at the fixture or the service line inside your property, and utility monitoring under EPA's UCMR 5 program is still building the national picture on PFAS.
Source: EPA UCMR 5 monitoringThe common ground
Both kinds of homes have the same last few feet of plumbing, and the same honest answer: most homes test fine, and a certified lab test of your own tap is the only way to know which home is yours.
Read your own numbers.
A certified lab report of your tap, explained line by line in plain English. If your water is fine, that is exactly what it will say. Book online, call, or write.