No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting April 2025.
Serves about 7,388 people (2,967 connections) with surface water from its own intake.
From EPA's record for TN0000546. PurityMap is independent of First U.d. of Hardin County.
Are you this utility? Correct this listing →
1 health-based violation in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Apr–Jun 2025 | Total trihalomethanes (TTHM) | 0.09145 mg/L | 0.080 mg/L | Archived |
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2023 to January 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanesulfonic acid (PFOS) | 25.9 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluorooctanoic acid (PFOA) | 17.3 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluorohexanesulfonic acid (PFHxS) | 3.6 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluorobutanesulfonic acid (PFBS) | 5.9 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 | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluorohexanoic acid (PFHxA) | 5.5 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluorobutanoic acid (PFBA) | 9 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluoroheptanoic acid (PFHpA) | 4.2 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluoropentanoic acid (PFPeA) | 3.1 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| 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 | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| 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 | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| 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 | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| 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 | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| 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 | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| 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 | 2023-03-07 to 2023-12-19 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-12-19 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-12-19 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-12-19 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2023-12-19 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-07 to 2024-01-24 | UCMR5 Analytical Results: FIRST U.D. OF HARDIN COUNTY (TN0000546) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure
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 →According to EPA's record, First U.d. of Hardin County uses surface water from its own intake.
EPA's record shows 1 health-based violation for First U.d. of Hardin County 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 April 2025. EPA also lists 3 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in First U.d. of Hardin County's latest lead and copper round, which ended in December 2025, was 0.3 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for First U.d. of Hardin County. Its mailing address on EPA record is 7075 HIGHWAY 57, COUNCE, TN 38326. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.