No health-based violations on EPA record since 2016.
Serves about 30,230 people (11,238 connections) with surface water from its own intake, and buys water from Louisville Water Company, Hardin County Water District #2 and Hardin Co. Water Dist #1/Ft. Knox.
From EPA's record for KY0470393. PurityMap is independent of Hardin County Water District #1.
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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 May 2023 to February 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 | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| 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 | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| 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 | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| 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 | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| 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 | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| 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 | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| 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 | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-08 to 2024-02-06 | UCMR5 Analytical Results: HARDIN COUNTY WATER DISTRICT #1 (KY0470393) |
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 →Hardin County Water District #1's phone number on EPA record is 270-272-2094. Its mailing address is 1400 ROGERSVILLE ROAD, RADCLIFF, KY 40601.
According to EPA's record, Hardin County Water District #1 uses surface water from its own intake, and buys water from Louisville Water Company, Hardin County Water District #2 and Hardin Co. Water Dist #1/Ft. Knox.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Hardin County Water District #1's latest lead and copper round, which ended in December 2025, was 3 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Hardin County Water District #1. Its phone number on EPA record is 270-272-2094. Its mailing address on EPA record is 1400 ROGERSVILLE ROAD, RADCLIFF, KY 40601. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.