What was found in ZIP 77833
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the 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 | 1/2 | SYR4 |
| Fluoride | 781.5 µg/L 20% of the EPA limit 4000 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 2/2 | SYR4 |
| Nitrate | 510 µg/L 5.1% of the EPA limit 10000 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 2/2 | 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 ZIP: 252 µg/L — AUSTIN COUNTY WSC 4 · 681 people · 2017 | 2/2 | 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 ZIP: 212.85 µg/L — AUSTIN COUNTY WSC 4 · 681 people · 2018 | 2/2 | SYR4 |
| Cyanide | 190 µg/L 95% of the EPA limit 200 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 1/2 | 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 | 2/2 | SYR4 |
| TTHM | 53.82 µg/L 67% of the EPA limit 80 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 2/2 | SYR4 |
| Lithium | 18.4 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2023
Highest in the ZIP: 47.8 µg/L — AUSTIN COUNTY WSC 4 · 681 people · 2023 | 2/2 | UCMR-5 |
| Dichloroacetic Acid | 44.58 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 2/2 | SYR4 |
| Chloroform | 34.62 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 19.515 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 19.5 µg/L 0.2% of the EPA limit 10000 µg/L Highest in the ZIP: AUSTIN COUNTY WSC 4 · 681 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 13.185 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 8.57 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 2/2 | SYR4 |
| Bromoform | 6.06 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019
Highest in the ZIP: 8.56 µg/L — AUSTIN COUNTY WSC 4 · 681 people · 2019 | 2/2 | SYR4 |
| Lead | 7.897 µg/L 53% of the EPA limit 15 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 7.47 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 1/2 | SYR4 |
| Gross Beta Particle Activity | 6.2 pCi/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2017 | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 6.16 pCi/L 41% of the EPA limit 15 pCi/L Highest in the ZIP: AUSTIN COUNTY WSC 4 · 681 people · 2018 | 1/2 | SYR4 |
| Dibromoacetic Acid | 6.1 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 5.87 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 1/2 | SYR4 |
| Selenium | 3.8 µg/L 7.6% of the EPA limit 50 µg/L Highest in the ZIP: AUSTIN COUNTY WSC 4 · 681 people · 2018 | 1/2 | SYR4 |
| Dalapon | 3.74 µg/L 1.9% of the EPA limit 200 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 3.193 pCi/L 64% of the EPA limit 5 pCi/L Highest in the ZIP: AUSTIN COUNTY WSC 4 · 681 people · 2018 | 1/2 | SYR4 |
| Carbon Tetrachloride | 1.175 µg/L 24% of the EPA limit 5 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 1/2 | SYR4 |
| Toluene | 1 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the ZIP: AUSTIN COUNTY WSC 4 · 681 people · 2019 | 1/2 | SYR4 |
| Arsenic | 0.8100 µg/L 8.1% of the EPA limit 10 µg/L Main supplier: CITY OF BRENHAM · 18,469 people · 2019 | 1/2 | SYR4 |
| Pfba | 0.0985 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2023 | 1/2 | UCMR-5 |
| Pfpea | 0.0037 µg/L No EPA limit set Main supplier: CITY OF BRENHAM · 18,469 people · 2023 | 1/2 | 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 | 2/2 | 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.
Water suppliers serving ZIP 77833
| Supplier | State | Population served |
|---|---|---|
| CITY OF BRENHAM | TX | 18,469 |
| AUSTIN COUNTY WSC 4 | TX | 681 |
Frequently asked questions about ZIP 77833 tap water
Is the tap water in ZIP 77833 safe to drink?
EPA testing detected 31 contaminants across the water suppliers serving ZIP 77833. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 77833?
2 public water suppliers report EPA drinking-water monitoring for ZIP 77833. Each is listed above with its population served.
What contaminants are in ZIP 77833's water?
EPA monitoring detected Chlorite, Fluoride, Nitrate, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.