No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting January 2019.
Serves about 5,423 people (2,354 connections) with surface water bought from Eubank Water System and Stanford Water Works.
From EPA's record for KY0690278. PurityMap is independent of Mckinney Water District.
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8 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Jan–Mar 2019 | Haloacetic acids (HAA5) | 0.07 mg/L | 0.060 mg/L | Resolved |
| Oct–Dec 2018 | Haloacetic acids (HAA5) | 0.071 mg/L | 0.060 mg/L | Resolved |
| Jul–Sep 2018 | Haloacetic acids (HAA5) | 0.075 mg/L | 0.060 mg/L | Resolved |
| Apr–Jun 2018 | Haloacetic acids (HAA5) | 0.08 mg/L | 0.060 mg/L | Resolved |
| Jan–Mar 2018 | Haloacetic acids (HAA5) | 0.07 mg/L | 0.060 mg/L | Resolved |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Oct–Dec 2017 | Haloacetic acids (HAA5) | 0.074 mg/L | 0.060 mg/L | Resolved |
| Jul–Sep 2017 | Haloacetic acids (HAA5) | 0.071 mg/L | 0.060 mg/L | Resolved |
| Jan–Mar 2017 | Haloacetic acids (HAA5) | 0.063 mg/L | 0.060 mg/L | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2024 to December 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 | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| 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 | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| 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 | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| 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 | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| 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 | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| 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 | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| 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 | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-12-03 | UCMR5 Analytical Results: MCKINNEY WATER DISTRICT (KY0690278) |
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 →Mckinney Water District's phone number on EPA record is 606-346-2200. Its mailing address is PO BOX 7, MCKINNEY, KY 40448.
According to EPA's record, Mckinney Water District uses surface water bought from Eubank Water System and Stanford Water Works.
EPA's record shows 8 health-based violations for Mckinney Water 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 January 2019. EPA also lists 2 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Mckinney Water District's latest lead and copper round, which ended in December 2025, was 2 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Mckinney Water District. Its phone number on EPA record is 606-346-2200. Its mailing address on EPA record is PO BOX 7, MCKINNEY, KY 40448. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.