Drinking water quality · 2024
· Verified
What's in Frisco, TX tap water
28 contaminants were measured in the Frisco, TX water system's 2024 annual report. Each is shown below against its federal limit.
- Reporting year
- 2024
- Contaminants measured
- 28
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- TX
PFAS — EPA UCMR5 (2023–2025)
4 PFAS compounds detected in Frisco, TX
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
PFPeA
● Detected (no federal limit)below national p90 (15.95999999999999 ng/L across detecting U.S. systems)
PFBS
● Detected (no federal limit)below national p90 (13.909999999999979 ng/L across detecting U.S. systems)
PFHxA
● Detected (no federal limit)near national p90 (12.190000000000003 ng/L across detecting U.S. systems)
PFBA
● Detected (no federal limit)near national p90 (18 ng/L across detecting U.S. systems)
Where your water comes from · EPA SDWIS
Frisco, TX buys its drinking water from NORTH TEXAS MWD WYLIE WTP.
Source
Treatment
Distribution
Also buys water from NORTH TEXAS MWD WYLIE WTP.
Historical readings · EPA Six-Year Review (2012–2019)
13 historically-detected contaminants in Frisco, TX
Every U.S. public water system reports compliance-monitoring data to EPA. The Six-Year Review releases the 2012–2019 window as a single dataset — here's what your system reported, year by year. Values shown are the highest detection per analyte per year, compared to the federal MCL.
| Contaminant | Worst detection | EPA limit | Years (2012–2019) |
|---|---|---|---|
TTHM worst: 2014 | 0.0738 mg/L 92% | 0.08 mg/L | '12'13'14'15'16'17'18'19 |
HAA5 worst: 2015 | 0.0378 mg/L within | 0.06 mg/L | '12'13'14'15'16'17'18'19 |
MBAA worst: 2012 | 0.0024 mg/L | — | '12'13'14'15'16'17'18'19 |
COPPER worst: 2012 | 0.604 mg/L near national p90 | — | '12'15'16'17 |
LEAD worst: 2012 | 0.00552 mg/L | — | '12'15'16'17 |
DBAA worst: 2012 | 0.0029 mg/L | — | '12'13'14'15'16'17'18'19 |
DCAA worst: 2012 | 0.0159 mg/L | — | '12'13'14'15'16'17'18'19 |
MCAA worst: 2013 | 0.0032 mg/L | — | '13'14'15'16'18'19 |
TCAA worst: 2012 | 0.0073 mg/L | — | '12'13'14'15'16'17'18'19 |
BROMODICHLOROMETHANE worst: 2012 | 0.0138 mg/L | — | '12'13'14'15'16'17'18'19 |
BROMOFORM worst: 2013 | 0.0017 mg/L | — | '13'14'15'16'17'18'19 |
CHLOROFORM worst: 2012 | 0.0162 mg/L | — | '12'13'14'15'16'17'18'19 |
DIBROMOCHLOROMETHANE worst: 2012 | 0.0078 mg/L | — | '12'13'14'15'16'17'18'19 |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Cryptosporidium | 0–0Reported levelCryptosporidium & Giardia | None set | None detected |
| Escherichia coli (E. coli)Escherichia coli — bacteria found in the gut of humans and animals. | 0Reported levelSystem-wide | None set | None detected |
| Giardia lamblia | Not detectedReported levelCryptosporidium & Giardia | None set | None detected |
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 5Reported levelSystem-wide | None set | Detected — no federal limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 4 mg/LReported levelMrdl | None set | Detected — no federal limit |
Disinfection byproducts
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Cyanide | 200 ug/LReported levelMCL | None set | Detected — no federal limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 4 mg/LReported levelMclg | None set | Detected — no federal limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 10 mg/LReported levelMclg | None set | Detected — no federal limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| BariumA metal from erosion of natural deposits and industrial discharge. | 2 mg/LReported levelMclg | None set | Detected — no federal limit |
| Chromium, TotalTotal chromium — the sum of all chromium forms, from natural deposits and industrial discharge. | 100 ug/LReported levelMclg | None set | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 1Highest single sampleLeonard | None set | Detected — no federal limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 50 pCi/LReported levelMCL | None set | Detected — no federal limit |
VOCs & pesticides
People also ask about Frisco, TX's water
+Is Frisco, TX tap water safe to drink in 2024?
Every one of the 28 contaminants measured in Frisco, TX's 2024 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Frisco, TX tap water?
28 contaminants were measured in Frisco, TX's 2024 Consumer Confidence Report, spanning disinfection byproducts, metals, and microbial. 0 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Where does the data on this page come from?
Every value is transcribed from Frisco, TX's 2024 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Frisco, TX's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2024 report; a new report will replace it once the utility publishes its next annual update.