No open health-based violations on EPA record in the last 10 years.
Serves about 5,428 people (2,600 connections) with surface water from its own intake.
From EPA's record for IA6171029. PurityMap is independent of Winterset Municipal Waterworks.
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1 health-based violation in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From October 2018 | Long Term 2 Enhanced Surface Water Treatment Rule | – | – | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2024 to December 2024.
| 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 | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| 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 | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| 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 | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| 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 | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| 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 | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| 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 | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| 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 | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: WINTERSET MUNICIPAL WATERWORKS (IA6171029) |
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 →Winterset Municipal Waterworks's phone number on EPA record is 515-462-3601. Its mailing address is ATTN MICHAEL HAM WATER SUPERINTENDENT, 3301 CEDAR BRIDGE RD, WINTERSET, IA 50273.
According to EPA's record, Winterset Municipal Waterworks uses surface water from its own intake.
EPA's record shows 1 health-based violation for Winterset Municipal Waterworks in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Winterset Municipal Waterworks's latest lead and copper round, which ended in December 2023, was 1 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Winterset Municipal Waterworks. Its phone number on EPA record is 515-462-3601. Its mailing address on EPA record is ATTN MICHAEL HAM WATER SUPERINTENDENT, 3301 CEDAR BRIDGE RD, WINTERSET, IA 50273. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.