No health-based violations on EPA record since 2016.
Serves about 35,345 people (17,018 connections) with groundwater from its own wells.
From EPA's record for OH7101412. PurityMap is independent of Ross County Water Co 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 September 2024 to March 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluoropentanoic acid (PFPeA) | 3.1 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| 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 | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| 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 | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| 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 | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| 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 | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| 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 | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| 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 | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| 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 | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-03-04 | UCMR5 Analytical Results: ROSS COUNTY WATER CO INC (OH7101412) |
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 →Ross County Water Co Inc's phone number on EPA record is 740-773-3435. Its mailing address is 1911 ROCKY RD, CHILLICOTHE, OH 45601.
According to EPA's record, Ross County Water Co Inc uses groundwater from its own wells.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Ross County Water Co Inc's latest lead and copper round, which ended in December 2025, was 1.8 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Ross County Water Co Inc. Its phone number on EPA record is 740-773-3435. Its mailing address on EPA record is 1911 ROCKY RD, CHILLICOTHE, OH 45601. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.