What was found in Brenham'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 | 898 µg/L 90% of the EPA limit 1000 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 1/4 | SYR4 |
| Fluoride | 781.5 µg/L 20% of the EPA limit 4000 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 4/4 | SYR4 |
| Nitrate | 510 µg/L 5.1% of the EPA limit 10000 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 4/4 | SYR4 |
| Nitrate-Nitrite | 362.5 µg/L 3.6% of the EPA limit 10000 µg/L Highest in the city: CENTRAL WASHINGTON COUNTY WSC · 2,270 people · 2019 | 3/4 | SYR4 |
| Barium | 84.72 µg/L 4.2% of the EPA limit 2000 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019
Highest in the city: 352.8 µg/L — STARLITE MOBILE HOME PARK · 195 people · 2019 | 4/4 | SYR4 |
| Cyanide | 190 µg/L 95% of the EPA limit 200 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 1/4 | SYR4 |
| Copper | 84.8 µg/L 6.5% of the EPA limit 1300 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019
Highest in the city: 184.5 µg/L — CENTRAL WASHINGTON COUNTY WSC · 2,270 people · 2018 | 4/4 | SYR4 |
| TTHM | 53.82 µg/L 67% of the EPA limit 80 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019
Highest in the city: 89.355 µg/L — CENTRAL WASHINGTON COUNTY WSC · 2,270 people · 2019 | 3/4 | SYR4 |
| Bromoform | 6.06 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019
Highest in the city: 60.75 µg/L — CENTRAL WASHINGTON COUNTY WSC · 2,270 people · 2019 | 3/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 58.93 µg/L 98% of the EPA limit 60 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 44.58 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 2/4 | SYR4 |
| Nitrite | 40 µg/L 4% of the EPA limit 1000 µg/L Highest in the city: LAKE FOREST WATER SYSTEM · 95 people · 2015 | 1/4 | SYR4 |
| Chloroform | 34.62 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 3/4 | SYR4 |
| Dibromochloromethane | 13.185 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019
Highest in the city: 31.335 µg/L — CENTRAL WASHINGTON COUNTY WSC · 2,270 people · 2019 | 3/4 | SYR4 |
| Bromodichloromethane | 19.515 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 3/4 | SYR4 |
| Lithium | 18.4 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2023 | 1/4 | UCMR-5 |
| Gross Beta Particle Activity | 6.2 pCi/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2017
Highest in the city: 13.75 pCi/L — CENTRAL WASHINGTON COUNTY WSC · 2,270 people · 2018 | 4/4 | SYR4 |
| Dibromoacetic Acid | 6.1 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019
Highest in the city: 12.47 µg/L — CENTRAL WASHINGTON COUNTY WSC · 2,270 people · 2019 | 3/4 | SYR4 |
| Trichloroacetic Acid | 8.57 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 3/4 | SYR4 |
| Lead | 7.897 µg/L 53% of the EPA limit 15 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 4/4 | SYR4 |
| Arsenic | 0.8100 µg/L 8.1% of the EPA limit 10 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019
Highest in the city: 7.83 µg/L — CENTRAL WASHINGTON COUNTY WSC · 2,270 people · 2019 | 4/4 | SYR4 |
| Monochloroacetic Acid | 7.47 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 2/4 | SYR4 |
| Monobromoacetic Acid | 5.87 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 2/4 | SYR4 |
| Selenium | 5.62 µg/L 11% of the EPA limit 50 µg/L Highest in the city: CENTRAL WASHINGTON COUNTY WSC · 2,270 people · 2019 | 3/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.95 pCi/L 33% of the EPA limit 15 pCi/L Highest in the city: STARLITE MOBILE HOME PARK · 195 people · 2015 | 3/4 | SYR4 |
| Dalapon | 3.74 µg/L 1.9% of the EPA limit 200 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 1/4 | SYR4 |
| Combined Uranium | 2.67 µg/L 8.9% of the EPA limit 30 µg/L Highest in the city: STARLITE MOBILE HOME PARK · 195 people · 2015 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 2.33 pCi/L 47% of the EPA limit 5 pCi/L Highest in the city: CENTRAL WASHINGTON COUNTY WSC · 2,270 people · 2018 | 3/4 | SYR4 |
| Xylenes, Total | 1.8 µg/L 0% of the EPA limit 10000 µg/L Highest in the city: CENTRAL WASHINGTON COUNTY WSC · 2,270 people · 2019 | 1/4 | SYR4 |
| Chromium | 1.34 µg/L 1.3% of the EPA limit 100 µg/L Highest in the city: LAKE FOREST WATER SYSTEM · 95 people · 2019 | 2/4 | SYR4 |
| Carbon Tetrachloride | 1.175 µg/L 24% of the EPA limit 5 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 1/4 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.7400 µg/L 12% of the EPA limit 6 µg/L Highest in the city: LAKE FOREST WATER SYSTEM · 95 people · 2019 | 1/4 | SYR4 |
| Pfba | 0.0985 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2023 | 1/4 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2025
Highest in the city: 0.0050 mg/L — LAKE FOREST WATER SYSTEM · 95 people · 2023 | 4/4 | LCR |
| Pfpea | 0.0037 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2023 | 1/4 | UCMR-5 |
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 Brenham
| Supplier | Population served |
|---|---|
| CITY OF BRENHAM | 18,469 |
| CENTRAL WASHINGTON COUNTY WSC | 2,270 |
| STARLITE MOBILE HOME PARK | 195 |
| LAKE FOREST WATER SYSTEM | 95 |
Frequently asked questions about Brenham tap water
Is Brenham tap water safe to drink?
EPA testing detected 35 contaminants in the water serving Brenham. 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 Brenham?
4 public water suppliers report drinking-water monitoring for Brenham, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Brenham's water?
The contaminants EPA monitoring detected in Brenham include Chlorite, Fluoride, Nitrate, 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.