What was found in ZIP 75757
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 | 5/5 | 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 | 4/5 | 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 | 4/5 | SYR4 |
| Nitrite | 192 µg/L 19% of the EPA limit 1000 µg/L Highest in the ZIP: WALNUT GROVE WSC · 8,775 people · 2017 | 1/5 | 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: 146.99 µg/L — NORTH CHEROKEE WSC · 6,951 people · 2019 | 5/5 | 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 | 4/5 | SYR4 |
| Chloroform | 38.6 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019
Highest in the ZIP: 109.02 µg/L — NORTH CHEROKEE WSC · 6,951 people · 2019 | 5/5 | SYR4 |
| Barium | 56.6 µg/L 2.8% of the EPA limit 2000 µg/L Highest in the ZIP: CITY OF BULLARD · 4,500 people · 2019 | 4/5 | 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 | 5/5 | 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 | 5/5 | SYR4 |
| Trichloroacetic Acid | 16.71 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019
Highest in the ZIP: 32.27 µg/L — NORTH CHEROKEE WSC · 6,951 people · 2019 | 5/5 | 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 | 5/5 | SYR4 |
| Monobromoacetic Acid | 7.93 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019
Highest in the ZIP: 25.5 µg/L — NORTH CHEROKEE WSC · 6,951 people · 2019 | 3/5 | SYR4 |
| Dibromochloromethane | 6.644 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019
Highest in the ZIP: 13.63 µg/L — WALNUT GROVE WSC · 8,775 people · 2019 | 5/5 | SYR4 |
| Lithium | 10.1 µg/L No EPA limit set Highest in the ZIP: CITY OF BULLARD · 4,500 people · 2023 | 1/5 | UCMR-5 |
| 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 | 4/5 | SYR4 |
| Cyanide | 6.83 µg/L 3.4% of the EPA limit 200 µg/L Highest in the ZIP: EMERALD BAY MUD · 1,827 people · 2017 | 2/5 | SYR4 |
| Gross Beta Particle Activity | 5.5 pCi/L No EPA limit set Highest in the ZIP: CITY OF BULLARD · 4,500 people · 2019 | 2/5 | SYR4 |
| Dibromoacetic Acid | 3.65 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019
Highest in the ZIP: 4.95 µg/L — WALNUT GROVE WSC · 8,775 people · 2019 | 4/5 | SYR4 |
| Lead | 4.81 µg/L 32% of the EPA limit 15 µg/L Main supplier: SOUTHERN UTILITIES · 69,735 people · 2018 | 5/5 | 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 | 4/5 | SYR4 |
| Bromoform | 3.396 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2019 | 3/5 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 2.22 µg/L 37% of the EPA limit 6 µg/L Highest in the ZIP: CITY OF BULLARD · 4,500 people · 2019 | 1/5 | 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 | 3/5 | SYR4 |
| Antimony, Total | 0.2980 µg/L 5% of the EPA limit 6 µg/L Highest in the ZIP: CITY OF BULLARD · 4,500 people · 2019 | 1/5 | SYR4 |
| Thallium, Total | 0.0950 µg/L 4.8% of the EPA limit 2 µg/L Highest in the ZIP: CITY OF BULLARD · 4,500 people · 2019 | 1/5 | SYR4 |
| Pfba | 0.0056 µg/L No EPA limit set Main supplier: SOUTHERN UTILITIES · 69,735 people · 2025
Highest in the ZIP: 0.0065 µg/L — NORTH CHEROKEE WSC · 6,951 people · 2024 | 2/5 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: SOUTHERN UTILITIES · 69,735 people · 2023
Highest in the ZIP: 0.0012 mg/L — NORTH CHEROKEE WSC · 6,951 people · 2024 | 5/5 | 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 75757
| Supplier | State | Population served |
|---|---|---|
| SOUTHERN UTILITIES | TX | 69,735 |
| WALNUT GROVE WSC | TX | 8,775 |
| NORTH CHEROKEE WSC | TX | 6,951 |
| CITY OF BULLARD | TX | 4,500 |
| EMERALD BAY MUD | TX | 1,827 |
Frequently asked questions about ZIP 75757 tap water
Is the tap water in ZIP 75757 safe to drink?
EPA testing detected 28 contaminants across the water suppliers serving ZIP 75757. 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 75757?
5 public water suppliers report EPA drinking-water monitoring for ZIP 75757. Each is listed above with its population served.
What contaminants are in ZIP 75757's water?
EPA monitoring detected Copper, Fluoride, Nitrate, Nitrite, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.