No open health-based violations on EPA record in the last 10 years.
Serves about 8,150 people (3,018 connections) with groundwater from its own wells.
From EPA's record for WI2681741. PurityMap is independent of Muskego Water Utility.
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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 2024 | Lead and copper rule revisions | – | – | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from June 2023 to January 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 12 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2023-06-19 to 2024-01-16 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| 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 | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| 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 | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| 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 | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| 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 | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| 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 | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-16 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-16 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| 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 | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-16 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-16 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-19 to 2024-01-29 | UCMR5 Analytical Results: MUSKEGO WATER UTILITY (WI2681741) |
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 →According to EPA's record, Muskego Water Utility uses groundwater from its own wells.
EPA's record shows 1 health-based violation for Muskego Water Utility in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. EPA also lists 16 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Muskego Water Utility's latest lead and copper round, which ended in September 2023, was 3.89 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Muskego Water Utility. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.