What was found in Three Rivers'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 | 276 µg/L 6.9% of the EPA limit 4000 µg/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Copper | 262.69999999999953 µg/L 20% of the EPA limit 1300 µg/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2018 | 1/1 | SYR4 |
| Nitrate | 170 µg/L 1.7% of the EPA limit 10000 µg/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 170 µg/L 1.7% of the EPA limit 10000 µg/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2014 | 1/1 | SYR4 |
| Cyanide | 127.5 µg/L 64% of the EPA limit 200 µg/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Barium | 125.8 µg/L 6.3% of the EPA limit 2000 µg/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| TTHM | 76.93 µg/L 96% of the EPA limit 80 µg/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 40.06000000000001 µg/L 67% of the EPA limit 60 µg/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Lithium | 32.5 µg/L No EPA limit set Main supplier: CITY OF THREE RIVERS · 4,428 people · 2023 | 1/1 | UCMR-5 |
| Dibromochloromethane | 25.109999999999992 µg/L No EPA limit set Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Bromoform | 23.79 µg/L No EPA limit set Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 20.09 µg/L No EPA limit set Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 18.725 µg/L No EPA limit set Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 17.31 µg/L No EPA limit set Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 14.2 pCi/L No EPA limit set Main supplier: CITY OF THREE RIVERS · 4,428 people · 2015 | 1/1 | SYR4 |
| Chloroform | 13.124999999999998 µg/L No EPA limit set Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Arsenic | 9.684999999999999 µg/L 97% of the EPA limit 10 µg/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Selenium | 6.609999999999999 µg/L 13% of the EPA limit 50 µg/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 4.719999999999999 µg/L No EPA limit set Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Lead | 4.529999999999998 µg/L 30% of the EPA limit 15 µg/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2018 | 1/1 | SYR4 |
| Monobromoacetic Acid | 2.445 µg/L No EPA limit set Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.5 pCi/L 30% of the EPA limit 5 pCi/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2015 | 1/1 | SYR4 |
| Combined Uranium | 1.5 µg/L 5% of the EPA limit 30 µg/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2015 | 1/1 | SYR4 |
| Antimony, Total | 0.5400 µg/L 9% of the EPA limit 6 µg/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Chromium | 0.3430 µg/L 0.3% of the EPA limit 100 µg/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2019 | 1/1 | SYR4 |
| Pfba | 0.0134 µg/L No EPA limit set Main supplier: CITY OF THREE RIVERS · 4,428 people · 2023 | 1/1 | UCMR-5 |
| Lead | 0.0018 mg/L 12% of the EPA limit 0.0150 mg/L Main supplier: CITY OF THREE RIVERS · 4,428 people · 2024 | 1/1 | 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 Three Rivers
| Supplier | Population served |
|---|---|
| CITY OF THREE RIVERS | 4,428 |
Frequently asked questions about Three Rivers tap water
Is Three Rivers tap water safe to drink?
EPA testing detected 27 contaminants in the water serving Three Rivers. 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 Three Rivers?
1 public water supplier report drinking-water monitoring for Three Rivers, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Three Rivers's water?
The contaminants EPA monitoring detected in Three Rivers include Fluoride, Copper, Nitrate, Nitrate-Nitrite, Cyanide. 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.