Short answer: No measured result is above a legal limit; the water is hard. City of Frisco serves 231,910 residents.
Your water bill or annual water quality report names your actual supplier.
CITY OF FRISCO (EPA PWSID TX0430005) delivers surface water to 231,910 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 hard water and 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 2.31 µg/L, below the 15 µg/L action level
PFBS 4.7 ng/L, below the 2000 ng/L EPA health advisory (+3 more PFAS detected)
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure.
Screening: quick check, not lab-grade
Varify
17 strip readings, including lead, chlorine, fluoride, iron and hardness, plus 2 coliform bacteria tests
What it can't tell you: Strip colors give rough ranges, not lab numbers, and it cannot detect PFAS or arsenic.
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 Frisco 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 Frisco, PFAS were detected below their limits, and PFBA 13.8 ng/L and PFPeA 7.6 ng/L with no federal or state limit; the lead 90th-percentile result was 2.31 µg/L against the 15 µg/L action level. CITY OF FRISCO (PWSID TX0430005) has a Purity Score of 92/100 (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 FRISCO (PWS ID TX0430005) is the public water system on record for Frisco, Texas, serving about 231,910 people. Confirm the utility on your water bill before acting on a specific finding.
Surface water (primary source of record in EPA SDWIS).
In EPA's UCMR 5 testing (2023-12-05 to 2024-09-04), PFBS was detected at 4.7 ng/L, below the 2,000 ng/L EPA health advisory and PFHxA was detected at 6.7 ng/L, below the 400,000 ng/L state limit. PFBA (13.8 ng/L) and PFPeA (7.6 ng/L) were also detected; they have no federal or state limit.
CITY OF FRISCO's most recent lead 90th-percentile result (2021–2023) was 2.31 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 Frisco holds 38 findings: 1 above a reference, 9 detected within the reference, 2 detected with no limit and 26 not detected. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass.
Frisco's water is recorded as 10.2 gpg, hard. Hardness is an aesthetic and plumbing characteristic, not a health-based limit.
Follow Frisco's water
One email when a new sampling round is published, a result moves above or below its reference, or the system's score changes.
Double opt-in: we email a confirmation link. Unsubscribe anytime. No spam.
Perfluorobutanesulfonic acid (PFBS)
Perfluorohexanoic acid (PFHxA)
Perfluoropentanoic acid (PFPeA)
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)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexanesulfonic acid (PFHxS)
Perfluorooctanesulfonic acid (PFOS)
Perfluoropentanesulfonic acid (PFPeS)
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 FRISCO (TX0430005)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: CITY OF FRISCO (TX0430005)
US EPA SDWIS
Consumer Confidence Report (CCR)
City of Frisco (NTMWD) 2025 Consumer Confidence Report (CCR)
City of Frisco (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 Frisco reported something related, it's shown below.
Frisco disinfects with chloramine (utility water-quality report).
Lead at City of Frisco: 2.31 µg/L (90th percentile, 2021–2023 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.
Copper: 0.455 mg/L (utility water-quality report, 2025). The federal action level is 1.3 mg/L.