No health-based violations on EPA record since 2016.
Serves about 9,390 people (1,403 connections) with groundwater from its own wells.
From EPA's record for MI0003968. PurityMap is independent of Lyon Township.
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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, in June 2025.
| 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 | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| 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 | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| 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 | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| 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 | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| 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 | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| 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 | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| 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 | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-11 | UCMR5 Analytical Results: LYON TOWNSHIP (MI0003968) |
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 →Lyon Township's phone number on EPA record is 248-437-2240. Its mailing address is 58000 GRAND RIVER AVE, NEW HUDSON, MI 48165.
According to EPA's record, Lyon Township uses groundwater from its own wells.
No health-based violations on EPA record since 2016. EPA also lists 6 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Lyon Township's latest lead and copper round, which ended in June 2025, was 2 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Lyon Township. Its phone number on EPA record is 248-437-2240. Its mailing address on EPA record is 58000 GRAND RIVER AVE, NEW HUDSON, MI 48165. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.