Water report · not indexed
What is in the water at 06062
2 public water systems serve this ZIP code in the federal records. Everything below comes from EPA monitoring data, and everything missing is named.
CTWC - UNIONVILLE SYSTEM
PWSID CT0520011 · CT · serves 14,693 people
PFAS and lithium
6 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 12 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| PFBA | 0.007 µg/L | 2 | 9/19/2023 |
| PFOA | 0.006 µg/L | 2 | 9/19/2023 |
| PFOS | 0.006 µg/L | 2 | 9/19/2023 |
| PFHxA | 0.004 µg/L | 2 | 9/19/2023 |
| PFPeA | 0.004 µg/L | 2 | 9/19/2023 |
| PFHxS | 0.003 µg/L | 2 | 9/19/2023 |
A detection is a measurement, not a violation and not a health finding. EPA states that UCMR 5 results do not indicate compliance or non-compliance with any limit.
Health-based violations
1 open health-based violation(s) recorded in SDWIS and not yet returned to compliance.
- TT · contaminant code 0700 · began 2026-05-01
Hardness
Too few readings to state a hardness. 1 station(s), 33 result(s). Below two stations and five results this page will not state a number: a median of two readings from one creek is not your water.
AQUARION-PLAINVILLE REGIONAL
PWSID CT1100011 · CT · serves 18,231 people
PFAS and lithium
4 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 8 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 12 µg/L | 2 | 8/8/2023 |
| PFOS | 0.0068 µg/L | 2 | 8/8/2023 |
| PFBA | 0.0064 µg/L | 2 | 8/8/2023 |
| PFOA | 0.0052 µg/L | 2 | 8/8/2023 |
A detection is a measurement, not a violation and not a health finding. EPA states that UCMR 5 results do not indicate compliance or non-compliance with any limit.
Health-based violations
1 open health-based violation(s) recorded in SDWIS and not yet returned to compliance.
- TT · contaminant code 0700 · began 2026-02-01
Hardness
No hardness measurement. Hardness is measured at environmental monitoring stations, and none fell inside this system’s service area. That is a gap in where monitoring happens, not a finding about the water.
What this report cannot tell you
Every figure describes water at a sampling point: a treatment plant, an entry point to the distribution system, or a monitoring station. None of it describes water arriving at your tap. Plumbing between the two can add lead and copper, and if your home was built before 1986 a test kit tells you something no federal dataset can.
Sources: EPA UCMR 5 occurrence (final release, frozen July 2026) · EPA SDWIS health-based violations · USGS and state monitoring via the Water Quality Portal · EPA Public Water System Service Area Boundaries v3. Compiled 2026-09-01.