No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting July 2022.
Serves about 10,256 people (4,302 connections) with groundwater from its own wells.
From EPA's record for OH4900712. PurityMap is independent of Mid-Ohio WSD.
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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 2022 | E. coli | – | – | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from April 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 | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| 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 | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| 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 | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| 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 | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| 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 | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| 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 | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| 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 | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-10 | UCMR5 Analytical Results: MID-OHIO WSD - CHRISMAN AVENUE WTP (OH4900712) |
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.
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Follow this water →Mid-Ohio WSD's phone number on EPA record is 740-412-2479. Its mailing address is 1341 N. 4TH ST., COLUMBUS, OH 43201.
According to EPA's record, Mid-Ohio WSD uses groundwater from its own wells.
EPA's record shows 1 health-based violation for Mid-Ohio WSD 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 July 2022. EPA also lists 7 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Mid-Ohio WSD's latest lead and copper round, which ended in December 2025, was 2.1 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Mid-Ohio WSD. Its phone number on EPA record is 740-412-2479. Its mailing address on EPA record is 1341 N. 4TH ST., COLUMBUS, OH 43201. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.