No health-based violations on EPA record since 2016.
Serves about 7,784 people (2,742 connections) with surface water from its own intake.
From EPA's record for CT1620011. PurityMap is independent of Winsted Water Works.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from January 2023 to October 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-03 | UCMR5 Analytical Results: WINSTED WATER WORKS (CT1620011) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Get PurityMap updates about this water system.
Follow this water →Winsted Water Works's phone number on EPA record is 860-379-4101. Its mailing address is 189 ROWLEY STREET, WINSTED, CT 06098.
According to EPA's record, Winsted Water Works uses surface water from its own intake.
No health-based violations on EPA record since 2016. EPA also lists 31 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Winsted Water Works's latest lead and copper round, which ended in December 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for Winsted Water Works. Its phone number on EPA record is 860-379-4101. Its mailing address on EPA record is 189 ROWLEY STREET, WINSTED, CT 06098. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.