Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
0
health-based violations
15
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| Other | Monitoring | Resolved | 2019-10-01 |
| Other | Monitoring | Resolved | 2019-10-01 |
| MON | Monitoring | Resolved | 2018-09-01 → 2018-09-30 |
| MON | Monitoring | Resolved | 2018-09-01 → 2018-09-30 |
| MON | Monitoring | Resolved | 2018-09-01 → 2018-09-30 |
| MON | Monitoring | Resolved | 2018-09-01 → 2018-09-30 |
| MR | Monitoring | Resolved | 2014-09-01 → 2014-09-30 |
| MR | Monitoring | Resolved | 2014-09-01 → 2014-09-30 |
| MR | Monitoring | Resolved | 2014-09-01 → 2014-09-30 |
| MR | Monitoring | Resolved | 2014-09-01 → 2014-09-30 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
Other contaminants detected
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of this
system's samples — over 100% is worth reading, but is not by itself a
violation. Where a single sample came in higher than that percentile, it
is noted under the bar. Formal violations are listed separately.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Chloroform | 41.72 µg/L No EPA limit set
worst single sample: 65 µg/L | 288/293 | SYR4 | 2012–2019 |
| Bromodichloromethane | 15.375 µg/L No EPA limit set
worst single sample: 19.5 µg/L | 286/293 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 42.175 µg/L No EPA limit set
worst single sample: 64.4 µg/L | 256/257 | SYR4 | 2012–2019 |
| TTHM | 53.85 µg/L 67% of the EPA limit 80 µg/L
worst single sample: 71.7 µg/L | 256/258 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 57.775 µg/L 96% of the EPA limit 60 µg/L
worst single sample: 87.5 µg/L | 256/257 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 15.1 µg/L No EPA limit set
worst single sample: 20.4 µg/L | 255/257 | SYR4 | 2012–2019 |
| Dibromochloromethane | 10.36 µg/L No EPA limit set
worst single sample: 21 µg/L | 245/293 | SYR4 | 2012–2019 |
| Copper | 725.2 µg/L 56% of the EPA limit 1300 µg/L
worst single sample: 1590 µg/L | 205/227 | SYR4 | 2012–2018 |
| Dibromoacetic Acid | 4.225 µg/L No EPA limit set
worst single sample: 5.6 µg/L | 176/257 | SYR4 | 2012–2019 |
| Nitrate | 1055.5 µg/L 11% of the EPA limit 10000 µg/L
worst single sample: 1500 µg/L | 150/152 | SYR4 | 2012–2019 |
| Lead | 16 µg/L 107% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 92 µg/L | 66/227 | SYR4 | 2012–2018 |
| Bromoform | 14.635 µg/L No EPA limit set
worst single sample: 25 µg/L | 48/293 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 8 µg/L No EPA limit set
worst single sample: 8.7 µg/L | 45/257 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 1039 µg/L 10% of the EPA limit 10000 µg/L
worst single sample: 1500 µg/L | 27/27 | SYR4 | 2012–2015 |
| Atrazine | 0.2940 µg/L 9.8% of the EPA limit 3 µg/L
worst single sample: 0.3700 µg/L | 20/29 | SYR4 | 2012–2019 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2024 |
| Simazine | 0.1745 µg/L 4.4% of the EPA limit 4 µg/L
worst single sample: 0.1800 µg/L | 12/29 | SYR4 | 2012–2019 |
| Barium | 183.5 µg/L 9.2% of the EPA limit 2000 µg/L
worst single sample: 244 µg/L | 11/11 | SYR4 | 2013–2019 |
| Fluoride | 890 µg/L 22% of the EPA limit 4000 µg/L | 11/11 | SYR4 | 2013–2019 |
| Nitrite | 92 µg/L 9.2% of the EPA limit 1000 µg/L
worst single sample: 110 µg/L | 10/31 | SYR4 | 2012–2019 |
| Xylenes, Total | 8.53 µg/L 0.1% of the EPA limit 10000 µg/L
worst single sample: 10 µg/L | 8/35 | SYR4 | 2013–2019 |
| Gross Beta Particle Activity | 6.57 pCi/L No EPA limit set
worst single sample: 6.6 pCi/L | 7/11 | SYR4 | 2013–2019 |
| Lithium | 15.5 µg/L No EPA limit set | 4/10 | UCMR-5 | 2025 |
| Hexachlorocyclopentadiene | 0.1200 µg/L 0.2% of the EPA limit 50 µg/L | 3/29 | SYR4 | 2012–2019 |
| Toluene | 0.6000 µg/L 0.1% of the EPA limit 1000 µg/L | 3/35 | SYR4 | 2013–2019 |
| Combined Radium (-226 And -228) | 1.475 pCi/L 30% of the EPA limit 5 pCi/L
worst single sample: 1.5 pCi/L | 2/2 | SYR4 | 2013–2019 |
| Ethylbenzene | 1.94 µg/L 0.3% of the EPA limit 700 µg/L
worst single sample: 2 µg/L | 2/35 | SYR4 | 2013–2019 |
| Arsenic | 2.2 µg/L 22% of the EPA limit 10 µg/L | 1/11 | SYR4 | 2013–2019 |
| Monobromoacetic Acid | 1.2 µg/L No EPA limit set | 1/257 | SYR4 | 2012–2019 |
74 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPFOAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about City of League City
Is City of League City tap water safe to drink?
EPA monitoring detected 35 contaminants in City of League City's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in City of League City's water?
EPA monitoring detected Chloroform, Bromodichloromethane, Dichloroacetic Acid, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.
How many people does City of League City serve?
City of League City reports serving 149,557 people in Texas, per its EPA record.
Has City of League City had any water quality violations?
The EPA has 15 violations on file for City of League City, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.