No health-based violations on EPA record since 2016.
Serves about 28,421 people (11,016 connections) with groundwater from its own wells.
From EPA's record for OH3600514. PurityMap is independent of Highland County Water Company, Inc..
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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, from January 2024 to July 2024.
| 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 | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| 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 | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| 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 | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| 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 | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| 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 | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| 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 | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| 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 | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-07-09 | UCMR5 Analytical Results: HIGHLAND COUNTY WATER COMPANY, INC. (OH3600514) |
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 →Highland County Water Company, Inc.'s phone number on EPA record is 937-393-4281. Its mailing address is PO BOX 940, HILLSBORO, OH 45133.
According to EPA's record, Highland County Water Company, Inc. uses groundwater from its own wells.
No health-based violations on EPA record since 2016. EPA also lists 1 missed or late test or report in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Highland County Water Company, Inc.'s latest lead and copper round, which ended in December 2025, was 1.7 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Highland County Water Company, Inc.. Its phone number on EPA record is 937-393-4281. Its mailing address on EPA record is PO BOX 940, HILLSBORO, OH 45133. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.