Short answer: No measured result is above a legal limit. City of McKinney serves 224,043 residents.
Your water bill or annual water quality report names your actual supplier.
CITY OF MCKINNEY (EPA PWSID TX0430039) delivers surface water to 224,043 residents. This report reflects 29 individual PFAS result(s) from the source UCMR5 observations and the latest Lead & Copper Rule 90th-percentile result. The utility's 2025 CCR reports chloramine disinfection.
0health-based violations in the last 10 years
From EPA SDWIS. A clean violation history means no enforcement action was recorded; it does not cover contaminants without a limit.
Plumbing inside a home can add lead that the system record can't show. A tap test tells you what reaches your glass.
lead 0.9 µg/L, below the 15 µg/L action level (detected below the limit); 30 galvanized lines to replace (context, not a tap measurement)
PFBA 8.7 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.
Each card names which McKinney 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 McKinney, PFBA 8.7 ng/L was detected, with no federal or state limit; the lead 90th-percentile result was 0.9 µg/L against the 15 µg/L action level. CITY OF MCKINNEY (PWSID TX0430039) has a Purity Score of 95/100 (confidence: high), 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.
CITY OF MCKINNEY (PWS ID TX0430039) is the public water system on record for McKinney, Texas, serving about 224,043 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 (2024-08-13 to 2025-05-13), PFBA was detected at 8.7 ng/L. It has no federal or state limit, so PurityMap shows it without grading it. No PFAS with a limit was detected.
CITY OF MCKINNEY's most recent lead 90th-percentile result (2025) was 0.9 µg/L, below the 15 µg/L action level. That figure comes from sampled homes; lead usually enters from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.
PurityMap's current record for McKinney holds 33 findings: 3 detected within the reference, 1 detected with no limit and 29 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 | Sampled | Source |
|---|---|---|---|---|
| Total trihalomethanes (TTHM) | 35.4 ppb | 80 ppb federal MCL | 2025 | City of McKinney (NTMWD) 2025 Consumer Confidence Report (CCR) |
| Haloacetic acids (HAA5) | 20.5 ppb | 60 ppb federal MCL | 2025 | City of McKinney (NTMWD) 2025 Consumer Confidence Report (CCR) |
| Lead (90th percentile) | 0.903 µg/L | 15 µg/L federal action level | 2025–2025 monitoring period | Lead & Copper Rule 90th-percentile: CITY OF MCKINNEY (TX0430039) |
| Perfluorobutanoic acid (PFBA) | 8.7 ng/L | No federal or state limit; shown for transparency | 2024-08-13 to 2025-05-13 | UCMR5 Analytical Results: CITY OF MCKINNEY (TX0430039) |
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: CITY OF MCKINNEY (TX0430039)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: CITY OF MCKINNEY (TX0430039)
US EPA SDWIS
Consumer Confidence Report (CCR)
City of McKinney (NTMWD) 2025 Consumer Confidence Report (CCR)
City of McKinney (NTMWD)
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 City of McKinney reported something related, it's shown below.
McKinney disinfects with chloramine (utility water-quality report).
Lead at City of McKinney: 0.903 µg/L (90th percentile, 2025 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.