Short answer: No measured result is above a legal limit; a past health-based violation (E. coli) is on record. Madisonville Light & Water serves 28,102 residents.
Your water bill or annual water quality report names your actual supplier.
MADISONVILLE LIGHT & WATER (EPA PWSID KY0540936) delivers surface water to 28,102 residents. This report reflects 29 individual PFAS result(s) from the source UCMR5 observations and the latest Lead & Copper Rule 90th-percentile result. Water hardness and disinfectant type are pending the utility's own annual report.
3health-based violations in the last 10 years
From EPA SDWIS. Counted once per contaminant per year, as in the Track record score. All 4 EPA filings are listed below.
No result is not a pass. Your utility's annual water quality report may list them, and a certified lab test covers your own tap.
Every filing is listed; the Track record score counts at most one per contaminant per year.
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Plumbing inside a home can add lead that the system record can't show. A tap test tells you what reaches your glass.
5 lead service lines; 4 galvanized lines to replace
PFBA 6.8 ng/L detected (no federal or state limit)
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
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
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.
When your results arrive, read them here →
Each card names which Madisonville findings its current certification covers, and which it doesn't.
As an Amazon Associate, PurityMap earns from qualifying purchases. A product appears here only when a current certification record covers at least one identified concern; every concern stays listed. The retail offer is looked up afterwards and never changes which products appear or their order. Affiliate disclosure.
PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Madisonville, PFBA 6.8 ng/L was detected, with no federal or state limit; one health-based violation is on record (E. coli). MADISONVILLE LIGHT & WATER (PWSID KY0540936) has a Purity Score of 97/100 (confidence: moderate), assessed at the water-system level and computed only from contaminants that were measured. Water can change in your own pipes, so a certified test is the only way to know what comes out of your tap.
MADISONVILLE LIGHT & WATER (PWS ID KY0540936) is the public water system on record for Madisonville, Kentucky, serving about 28,102 people. Confirm the utility on your water bill before acting on a specific finding.
Surface water (primary source of record in EPA SDWIS).
Yes. In EPA's UCMR 5 testing (2025-06-19 to 2026-06-02), PFBA was detected at 6.8 ng/L. It has no federal or state limit, so PurityMap shows it without grading it. No PFAS with a limit was detected.
Lead is not in Madisonville's current published record. Lead usually enters from a building's own pipes and fixtures, so a certified home test is the way to know yours.
The federal SDWIS record lists a health-based violation for MADISONVILLE LIGHT & WATER within about the last ten years: E. coli (2021). The findings above show each one's status.
PurityMap's current record for Madisonville holds 32 findings: 1 above a reference, 1 detected with no limit and 30 not detected. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass.
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| Contaminant | Result | Benchmark | Status | Sampled | Source |
|---|---|---|---|---|---|
| E. coli | = | Federal MCL | Above the listed reference | 2021 | EPA SDWIS Violations & Enforcement: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluorobutanoic acid (PFBA) | 6.8 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Contaminant | Result | Benchmark | 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 | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| 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 | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| 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 | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| 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 | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| 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 | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Lead (90th percentile) | Non-Detect (ND) | 15 µg/L federal action level | Not detected above the reporting limit | 2022–2024 monitoring period | Lead & Copper Rule 90th-percentile: MADISONVILLE LIGHT & WATER (KY0540936) |
| 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 | 2025-06-19 to 2026-03-03 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-03-03 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-03-03 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| 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 | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-03-03 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-03-03 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-06-19 to 2026-06-02 | UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936) |
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
Perfluoro-3-methoxypropanoic acid (PFMPA)
Perfluoro-4-methoxybutanoic acid (PFMBA)
Perfluorobutanesulfonic acid (PFBS)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorooctanesulfonic acid (PFOS)
Perfluoropentanesulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUnA)
Every value is the published result from the cited public record. A reporting limit is the lowest level the method could reliably quantify; a non-detect is not a guarantee of zero.
UCMR5 Analytical Results
UCMR5 Analytical Results: MADISONVILLE LIGHT & WATER (KY0540936)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: MADISONVILLE LIGHT & WATER (KY0540936)
US EPA SDWIS
State SDWIS Compliance Record
EPA SDWIS Violations & Enforcement: MADISONVILLE LIGHT & WATER (KY0540936)
US EPA SDWIS
Methodology: how we analyze water. Prepared with AI assistance and reviewed by the PurityMap Editorial Team before publication.
Start with the hot-or-cold tap check. Where Madisonville Light & Water reported something related, it's shown below.
Lead at Madisonville Light & Water: not detected (90th percentile, 2022–2024 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.
A ZIP code is a postal area, not a water service area. Your water bill names your supplier.