No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting April 2018.
Serves about 7,056 people (3,190 connections) with surface water from its own intake, and buys water from Hazard Water Department, Southern Water & Sewer District and Hindman Mun Water Works.
From EPA's record for KY0600062. PurityMap is independent of Knott Co Water & Sewer District.
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2 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Apr–Jun 2018 | Haloacetic acids (HAA5) | 0.067 mg/L | 0.060 mg/L | Resolved |
| Jan–Mar 2018 | Haloacetic acids (HAA5) | 0.062 mg/L | 0.060 mg/L | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2025 to September 2025.
| 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 | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| 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 | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| 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 | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| 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 | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| 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 | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| 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 | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| 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 | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-05 to 2025-09-10 | UCMR5 Analytical Results: KNOTT CO WATER & SEWER DISTRICT (KY0600062) |
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 →Knott Co Water & Sewer District's phone number on EPA record is 606-642-3582. Its mailing address is 7777 BIG BRANCH RD., VICCO, KY 41773.
According to EPA's record, Knott Co Water & Sewer District uses surface water from its own intake, and buys water from Hazard Water Department, Southern Water & Sewer District and Hindman Mun Water Works.
EPA's record shows 2 health-based violations for Knott Co Water & Sewer District 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 2018. EPA also lists 1 missed or late test or report in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Knott Co Water & Sewer District's latest lead and copper round, which ended in December 2024. The federal action level is 15 µg/L.
PurityMap has no verified website for Knott Co Water & Sewer District. Its phone number on EPA record is 606-642-3582. Its mailing address on EPA record is 7777 BIG BRANCH RD., VICCO, KY 41773. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.