What was found in College Station'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 |
|---|---|---|---|
| Fluoride | 472 µg/L 12% of the EPA limit 4000 µg/L Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2017
Highest in the city: 548 µg/L — CAROUSEL MOBILE HOME PARK · 56 people · 2019 | 3/3 | SYR4 |
| Nitrate | 410 µg/L 4.1% of the EPA limit 10000 µg/L Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2019 | 3/3 | SYR4 |
| Copper | 141.5 µg/L 11% of the EPA limit 1300 µg/L Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2019
Highest in the city: 314.1 µg/L — TEXAS A&M UNIVERSITY MAIN CAMPUS · 58,500 people · 2017 | 3/3 | SYR4 |
| Nitrate-Nitrite | 158 µg/L 1.6% of the EPA limit 10000 µg/L Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2015
Highest in the city: 183.75 µg/L — TEXAS A&M UNIVERSITY MAIN CAMPUS · 58,500 people · 2015 | 3/3 | SYR4 |
| Barium | 87.42 µg/L 4.4% of the EPA limit 2000 µg/L Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2019 | 3/3 | SYR4 |
| TTHM | 38.68 µg/L 48% of the EPA limit 80 µg/L Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2019
Highest in the city: 77.4 µg/L — TEXAS A&M UNIVERSITY MAIN CAMPUS · 58,500 people · 2019 | 3/3 | SYR4 |
| Bromoform | 17.985 µg/L No EPA limit set Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2019
Highest in the city: 38 µg/L — TEXAS A&M UNIVERSITY MAIN CAMPUS · 58,500 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 14.595 µg/L No EPA limit set Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2019
Highest in the city: 25.83 µg/L — TEXAS A&M UNIVERSITY MAIN CAMPUS · 58,500 people · 2019 | 3/3 | SYR4 |
| Lead | 6.899 µg/L 46% of the EPA limit 15 µg/L Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2019
Highest in the city: 22.86 µg/L — TEXAS A&M UNIVERSITY MAIN CAMPUS · 58,500 people · 2017 | 3/3 | SYR4 |
| Lithium | 18.6 µg/L No EPA limit set Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2023
Highest in the city: 19.4 µg/L — TEXAS A&M UNIVERSITY MAIN CAMPUS · 58,500 people · 2025 | 2/3 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 4.4 µg/L 7.3% of the EPA limit 60 µg/L Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2019
Highest in the city: 10.62 µg/L — TEXAS A&M UNIVERSITY MAIN CAMPUS · 58,500 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 5.485 µg/L No EPA limit set Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2019
Highest in the city: 9.2 µg/L — TEXAS A&M UNIVERSITY MAIN CAMPUS · 58,500 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 3.8 µg/L No EPA limit set Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2019
Highest in the city: 8.06 µg/L — TEXAS A&M UNIVERSITY MAIN CAMPUS · 58,500 people · 2019 | 3/3 | SYR4 |
| Selenium | 5.6 µg/L 11% of the EPA limit 50 µg/L Highest in the city: CAROUSEL MOBILE HOME PARK · 56 people · 2018 | 2/3 | SYR4 |
| Monochloroacetic Acid | 5.3 µg/L No EPA limit set Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2019 | 2/3 | SYR4 |
| Gross Beta Particle Activity | 4.9 pCi/L No EPA limit set Highest in the city: CAROUSEL MOBILE HOME PARK · 56 people · 2015 | 1/3 | SYR4 |
| Monobromoacetic Acid | 4.3 µg/L No EPA limit set Highest in the city: TEXAS A&M UNIVERSITY MAIN CAMPUS · 58,500 people · 2019 | 1/3 | SYR4 |
| Chloroform | 2.05 µg/L No EPA limit set Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2019
Highest in the city: 3.63 µg/L — TEXAS A&M UNIVERSITY MAIN CAMPUS · 58,500 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 2.78 µg/L No EPA limit set Highest in the city: TEXAS A&M UNIVERSITY MAIN CAMPUS · 58,500 people · 2019 | 1/3 | SYR4 |
| Dichloroacetic Acid | 1.365 µg/L No EPA limit set Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2019
Highest in the city: 2.32 µg/L — TEXAS A&M UNIVERSITY MAIN CAMPUS · 58,500 people · 2019 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.5 pCi/L 30% of the EPA limit 5 pCi/L Highest in the city: CAROUSEL MOBILE HOME PARK · 56 people · 2015 | 1/3 | SYR4 |
| Pfba | 0.0089 µg/L No EPA limit set Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2023 | 1/3 | UCMR-5 |
| Pfhxa | 0.0059 µg/L No EPA limit set Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2023 | 1/3 | UCMR-5 |
| Pfpea | 0.0056 µg/L No EPA limit set Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2023 | 1/3 | UCMR-5 |
| PFBS | 0.0037 µg/L No EPA limit set Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2023 | 1/3 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF COLLEGE STATION · 104,103 people · 2025 | 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 College Station
| Supplier | Population served |
|---|---|
| CITY OF COLLEGE STATION | 104,103 |
| TEXAS A&M UNIVERSITY MAIN CAMPUS | 58,500 |
| CAROUSEL MOBILE HOME PARK | 56 |
Frequently asked questions about College Station tap water
Is College Station tap water safe to drink?
EPA testing detected 26 contaminants in the water serving College Station. 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 College Station?
3 public water suppliers report drinking-water monitoring for College Station, Texas to the EPA. Each is listed above with its population served.
What contaminants are in College Station's water?
The contaminants EPA monitoring detected in College Station include Fluoride, Nitrate, Copper, Nitrate-Nitrite, 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.