What was found in ZIP 75791
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 |
|---|---|---|---|
| Copper | 929 µg/L 71% of the EPA limit 1300 µg/L Main supplier: SOUTHERN UTILITIES · 69,735 people · 2018 | 3/3 | SYR4 |
| Fluoride | 469.25 µg/L 12% of the EPA limit 4000 µg/L Highest in the ZIP: WALNUT GROVE WSC · 8,775 people · 2017 | 2/3 | SYR4 |
| Nitrate | 430 µg/L 4.3% of the EPA limit 10000 µg/L Highest in the ZIP: WALNUT GROVE WSC · 8,775 people · 2019 | 2/3 | SYR4 |
| Nitrite | 192 µg/L 19% of the EPA limit 1000 µg/L Highest in the ZIP: WALNUT GROVE WSC · 8,775 people · 2017 | 2/3 | SYR4 |
| Nitrate-Nitrite | 137.5 µg/L 1.4% of the EPA limit 10000 µg/L Highest in the ZIP: WALNUT GROVE WSC · 8,775 people · 2015 | 2/3 | SYR4 |
| TTHM | 75.44 µg/L 94% of the EPA limit 80 µg/L Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019
Highest in the ZIP: 106.34 µg/L — WALNUT GROVE WSC · 8,775 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 41.645 µg/L 69% of the EPA limit 60 µg/L Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019
Highest in the ZIP: 52.925 µg/L — WALNUT GROVE WSC · 8,775 people · 2019 | 3/3 | SYR4 |
| Chloroform | 38.6 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019
Highest in the ZIP: 49.18 µg/L — WALNUT GROVE WSC · 8,775 people · 2019 | 3/3 | SYR4 |
| Barium | 39.05 µg/L 2% of the EPA limit 2000 µg/L Highest in the ZIP: WALNUT GROVE WSC · 8,775 people · 2019 | 2/3 | SYR4 |
| Bromodichloromethane | 15 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019
Highest in the ZIP: 35.18 µg/L — WALNUT GROVE WSC · 8,775 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 23.25 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019
Highest in the ZIP: 26.875 µg/L — WALNUT GROVE WSC · 8,775 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 16.71 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019
Highest in the ZIP: 24.42 µg/L — WALNUT GROVE WSC · 8,775 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 6.644 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019
Highest in the ZIP: 19.87 µg/L — CITY OF WHITEHOUSE · 9,571 people · 2019 | 3/3 | SYR4 |
| Lithium | 13.8 µg/L No EPA limit set Highest in the ZIP: CITY OF WHITEHOUSE · 9,571 people · 2024 | 1/3 | UCMR-5 |
| Monobromoacetic Acid | 7.93 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 3.42 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019
Highest in the ZIP: 7.355 µg/L — WALNUT GROVE WSC · 8,775 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 3.65 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019
Highest in the ZIP: 5.365 µg/L — CITY OF WHITEHOUSE · 9,571 people · 2019 | 3/3 | SYR4 |
| Lead | 4.81 µg/L 32% of the EPA limit 15 µg/L Main supplier: SOUTHERN UTILITIES · 69,735 people · 2018 | 3/3 | SYR4 |
| Gross Beta Particle Activity | 4 pCi/L No EPA limit set Highest in the ZIP: WALNUT GROVE WSC · 8,775 people · 2019 | 1/3 | SYR4 |
| Chromium | 3.82 µg/L 3.8% of the EPA limit 100 µg/L Highest in the ZIP: WALNUT GROVE WSC · 8,775 people · 2019 | 2/3 | SYR4 |
| Bromoform | 3.396 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019
Highest in the ZIP: 3.73 µg/L — CITY OF WHITEHOUSE · 9,571 people · 2019 | 3/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.475 pCi/L 30% of the EPA limit 5 pCi/L Highest in the ZIP: WALNUT GROVE WSC · 8,775 people · 2019 | 2/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.7000 µg/L 12% of the EPA limit 6 µg/L Highest in the ZIP: CITY OF WHITEHOUSE · 9,571 people · 2019 | 1/3 | SYR4 |
| Pfba | 0.0056 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2025 | 1/3 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: SOUTHERN UTILITIES · 69,735 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.
Water suppliers serving ZIP 75791
| Supplier | State | Population served |
|---|---|---|
| SOUTHERN UTILITIES | TX | 69,735 |
| CITY OF WHITEHOUSE | TX | 9,571 |
| WALNUT GROVE WSC | TX | 8,775 |
Frequently asked questions about ZIP 75791 tap water
Is the tap water in ZIP 75791 safe to drink?
EPA testing detected 25 contaminants across the water suppliers serving ZIP 75791. 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 75791?
3 public water suppliers report EPA drinking-water monitoring for ZIP 75791. Each is listed above with its population served.
What contaminants are in ZIP 75791's water?
EPA monitoring detected Copper, Fluoride, Nitrate, Nitrite, Nitrate-Nitrite, and others across this ZIP's suppliers. The full list with levels and sources is above.