Is Naugatuck, CT tap water safe?
Data: U.S. EPA · How we read the data · How we check it
Summary
No federal limits exceeded in EPA data for Connecticut Water Company – Naugatuck Region-Central System.
2 public water systems serve parts of Naugatuck. The largest, Connecticut Water Company – Naugatuck Region-Central System, serves 22,735 people. Your water bill names your system.
Largest system
Connecticut Water Company – Naugatuck Region-Central System
22,735 people · Surface water · EPA ID CT0880011
Buys treated water from Waterbury Water Department.
| PFAS | Highest average | Limit |
|---|---|---|
| PFOA Not detected | – | 4 ppt |
| PFOS Not detected | – | 4 ppt |
| PFHxS Not detected | – | 10 ppt |
| PFNA Not detected | – | 10 ppt |
| HFPO-DA (GenX) Not detected | – | 10 ppt |
ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.
Lead: 0 ppb at the 90th percentile (Nov 2026, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0
Across Connecticut, 29 of 62 water systems EPA tested had PFAS above a 2024 federal limit, and 1 system were above the lead action level in results from the last five years. Connecticut results.
Naugatuck homes and lead pipes
Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. Renting? Ask your landlord what the service line is made of, because it's their pipe to replace. How to check your own line.
Housing: Census American Community Survey 2020–2024 5-year estimates for Naugatuck borough (tables B25034, B25003). Estimates for small places have a margin of error.
Other water systems serving Naugatuck
- Idleview Mobile Home Park Water System138 people · Groundwater · Connecticut · lists this cityNot in EPA's PFAS sample
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Waterbury 5 mi Waterbury Water Department | None above limits | 0.05 ppb |
| Shelton 13 mi Aquarion-Eastern Fairfield County | None above limits | 0 ppb |
| Meriden 14 mi Regional Water Authority | Above limit | 0 ppb |
| New Haven 14 mi Regional Water Authority | Above limit | 0 ppb |
| Bristol 15 mi Bristol Water Department | Above limit | 0 ppb |
| West Haven 16 mi Regional Water Authority | Above limit | 0 ppb |
Naugatuck ZIP codes (1)
- 06770
Questions
Is Naugatuck tap water safe to drink?
Connecticut Water Company – Naugatuck Region-Central System has had no health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.
Who supplies water in Naugatuck, CT?
2 public water systems serve parts of Naugatuck. The largest is Connecticut Water Company – Naugatuck Region-Central System (22,735 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.
Does Naugatuck tap water have PFAS?
None detected above EPA's reporting limits. Connecticut Water Company – Naugatuck Region-Central System had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.
Do Naugatuck homes have lead pipes?
Census estimates put 67% of Naugatuck homes as built before 1980 (Connecticut: 67%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Connecticut Water Company – Naugatuck Region-Central System's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.