What was found in Eagle Pass's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Chlorite | 1430 µg/L 143% of the EPA limit, at the 95th percentile of samples — 1000 µg/L Highest in the city: MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2019 | 1/3 | SYR4 |
| Copper | 94.93 µg/L 7.3% of the EPA limit 1300 µg/L Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019
Highest in the city: 1022.4 µg/L — Kickapoo Traditional Tribe · 9,384 people · 2017 | 3/3 | SYR4 |
| Fluoride | 726.5 µg/L 18% of the EPA limit 4000 µg/L Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019
Highest in the city: 758 µg/L — MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2019 | 2/3 | SYR4 |
| Nitrate | 710 µg/L 7.1% of the EPA limit 10000 µg/L Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019 | 2/3 | SYR4 |
| Barium | 98.18 µg/L 4.9% of the EPA limit 2000 µg/L Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019
Highest in the city: 103.4 µg/L — MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2019 | 2/3 | SYR4 |
| TTHM | 61.905 µg/L 77% of the EPA limit 80 µg/L Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019
Highest in the city: 93.175 µg/L — MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2019 | 3/3 | SYR4 |
| Nitrite | 90 µg/L 9% of the EPA limit 1000 µg/L Highest in the city: MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2013 | 1/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 22.3 µg/L 37% of the EPA limit 60 µg/L Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019
Highest in the city: 58 µg/L — MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2019 | 3/3 | SYR4 |
| Lithium | 27.7 µg/L No EPA limit set Main supplier: CITY OF EAGLE PASS · 54,900 people · 2025
Highest in the city: 37 µg/L — Kickapoo Traditional Tribe · 9,384 people · 2025 | 2/3 | UCMR-5 |
| Chloroform | 11.235 µg/L No EPA limit set Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019
Highest in the city: 31.8 µg/L — MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 18.845 µg/L No EPA limit set Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019
Highest in the city: 31.38 µg/L — MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 8.825 µg/L No EPA limit set Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019
Highest in the city: 30.78 µg/L — MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 26.49 µg/L No EPA limit set Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019
Highest in the city: 27.235 µg/L — MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 4.66 µg/L No EPA limit set Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019
Highest in the city: 22.705 µg/L — MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2019 | 3/3 | SYR4 |
| Bromoform | 14 µg/L No EPA limit set Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019
Highest in the city: 14.475 µg/L — Kickapoo Traditional Tribe · 9,384 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 10.325 µg/L No EPA limit set Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019
Highest in the city: 11.34 µg/L — MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 10.425 µg/L No EPA limit set Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019 | 3/3 | SYR4 |
| Cyanide | 10 µg/L 5% of the EPA limit 200 µg/L Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019 | 1/3 | SYR4 |
| Lead | 8.5975 µg/L 57% of the EPA limit 15 µg/L Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019 | 2/3 | SYR4 |
| Gross Beta Particle Activity | 4.3 pCi/L No EPA limit set Main supplier: CITY OF EAGLE PASS · 54,900 people · 2017
Highest in the city: 5.73 pCi/L — MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2018 | 2/3 | SYR4 |
| Selenium | 3.48 µg/L 7% of the EPA limit 50 µg/L Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019
Highest in the city: 5.285 µg/L — MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2019 | 2/3 | SYR4 |
| Combined Uranium | 3.1 µg/L 10% of the EPA limit 30 µg/L Main supplier: CITY OF EAGLE PASS · 54,900 people · 2017
Highest in the city: 3.745 µg/L — MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2018 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 3.1 pCi/L 62% of the EPA limit 5 pCi/L Highest in the city: MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2012 | 1/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3 pCi/L 20% of the EPA limit 15 pCi/L Main supplier: CITY OF EAGLE PASS · 54,900 people · 2017 | 1/3 | SYR4 |
| Monobromoacetic Acid | 2.975 µg/L No EPA limit set Main supplier: CITY OF EAGLE PASS · 54,900 people · 2019 | 3/3 | SYR4 |
| Dalapon | 1.97 µg/L 1% of the EPA limit 200 µg/L Highest in the city: MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2019 | 1/3 | SYR4 |
| Pfba | 0.0066 µg/L No EPA limit set Highest in the city: Kickapoo Traditional Tribe · 9,384 people · 2025 | 1/3 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF EAGLE PASS · 54,900 people · 2025
Highest in the city: 0.00060 mg/L — MAVERICK COUNTY AIRPORT WATER WORKS · 1,700 people · 2023 | 3/3 | LCR |
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 the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Eagle Pass
| Supplier | Population served |
|---|---|
| CITY OF EAGLE PASS | 54,900 |
| Kickapoo Traditional Tribe | 9,384 |
| MAVERICK COUNTY AIRPORT WATER WORKS | 1,700 |
Frequently asked questions about Eagle Pass tap water
Is Eagle Pass tap water safe to drink?
EPA testing detected 28 contaminants in the water serving Eagle Pass. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Eagle Pass?
3 public water suppliers report drinking-water monitoring for Eagle Pass, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Eagle Pass's water?
The contaminants EPA monitoring detected in Eagle Pass include Chlorite, Copper, Fluoride, Nitrate, Barium. The full list, with the level at the main supplier and the data source, is in the table above.
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.