No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting January 2017.
Serves about 8,600 people (2,593 connections) with surface water from its own intake.
From EPA's record for OH4700911. PurityMap is independent of Oberlin Water Department.
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2 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From March 2024 | Interim Enhanced Surface Water Treatment Rule | – | – | Resolved |
| Jan–Mar 2017 | Total trihalomethanes (TTHM) | 0.081 mg/L | 0.080 mg/L | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2023 to November 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorobutanesulfonic acid (PFBS) | 3 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 | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluorohexanoic acid (PFHxA) | 5 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluorobutanoic acid (PFBA) | 8.2 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluoropentanoic acid (PFPeA) | 5.3 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| 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 | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| 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 | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| 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 | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| 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 | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| 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 | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| 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 | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-21 | UCMR5 Analytical Results: OBERLIN WATER DEPARTMENT (OH4700911) |
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 →Oberlin Water Department's phone number on EPA record is 440-775-7290. Its mailing address is 18969 WHITEHEAD RD, LAGRANGE, OH 44050-9434.
According to EPA's record, Oberlin Water Department uses surface water from its own intake.
EPA's record shows 2 health-based violations for Oberlin Water Department in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting January 2017. 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 Oberlin Water Department's latest lead and copper round, which ended in December 2023. The federal action level is 15 µg/L.
PurityMap has no verified website for Oberlin Water Department. Its phone number on EPA record is 440-775-7290. Its mailing address on EPA record is 18969 WHITEHEAD RD, LAGRANGE, OH 44050-9434. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.