No open health-based violations on EPA record in the last 10 years.
Serves about 7,584 people (2,412 connections) with surface water bought from City of Grand Rapids.
From EPA's record for MI0000012. PurityMap is independent of Ada Township.
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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 July 2023 | Lead and Copper Rule | – | TT | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2023 to December 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 | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| 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 | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| 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 | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| 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 | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| 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 | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| 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 | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| 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 | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-11 | UCMR5 Analytical Results: ADA TOWNSHIP (MI0000012) |
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 →Ada Township's phone number on EPA record is 616-676-9191. Its mailing address is 7330 THORNAPPLE RIVER DR SE, PO BOX 370, ADA, MI 49301.
According to EPA's record, Ada Township uses surface water bought from City of Grand Rapids.
EPA's record shows 1 health-based violation for Ada Township in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. EPA also lists 1 missed or late test or report in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Ada Township'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 Ada Township. Its phone number on EPA record is 616-676-9191. Its mailing address on EPA record is 7330 THORNAPPLE RIVER DR SE, PO BOX 370, ADA, MI 49301. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.