No health-based violations on EPA record since 2016.
Serves about 7,300 people (2,230 connections) with surface water from its own intake, and buys water from CTWC.
From EPA's record for CT1160011. PurityMap is independent of Putnam Water Pollution Control Authority.
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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 February 2025 to November 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanoic acid (PFOA) | 8.5 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluorooctanesulfonic acid (PFOS) | 7.5 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluorohexanesulfonic acid (PFHxS) | 4 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluorobutanesulfonic acid (PFBS) | 3.2 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Within the referenced health-based guidance value | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluoropentanoic acid (PFPeA) | 3.1 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| 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 | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| 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 | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| 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 | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| 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 | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| 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 | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| 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 | 2025-02-05 to 2025-11-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-05 to 2025-08-05 | UCMR5 Analytical Results: PUTNAM WATER POLLUTION CONTROL AUTHORITY (CT1160011) |
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 →Putnam Water Pollution Control Authority's phone number on EPA record is 860-963-6800. Its mailing address is 126 Church St, PUTNAM, CT 06260.
According to EPA's record, Putnam Water Pollution Control Authority uses surface water from its own intake, and buys water from CTWC.
No health-based violations on EPA record since 2016. EPA also lists 25 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Putnam Water Pollution Control Authority's latest lead and copper round, which ended in December 2025, was 2.8 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Putnam Water Pollution Control Authority. Its phone number on EPA record is 860-963-6800. Its mailing address on EPA record is 126 Church St, PUTNAM, CT 06260. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.