What was found in ZIP 75703
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 | 552.65 µg/L 43% of the EPA limit 1300 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019
Highest in the ZIP: 929 µg/L — SOUTHERN UTILITIES · 69,735 people · 2018 | 4/4 | SYR4 |
| Fluoride | 641.75 µg/L 16% of the EPA limit 4000 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019 | 3/4 | SYR4 |
| Nitrate | 320 µg/L 3.2% of the EPA limit 10000 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019
Highest in the ZIP: 430 µg/L — WALNUT GROVE WSC · 8,775 people · 2019 | 3/4 | SYR4 |
| Nitrate-Nitrite | 271.65 µg/L 2.7% of the EPA limit 10000 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2017 | 3/4 | SYR4 |
| Nitrite | 192 µg/L 19% of the EPA limit 1000 µg/L Highest in the ZIP: WALNUT GROVE WSC · 8,775 people · 2017 | 1/4 | SYR4 |
| Xylenes, Total | 134.283 µg/L 1.3% of the EPA limit 10000 µg/L Highest in the ZIP: DEAN WSC · 5,907 people · 2019 | 1/4 | SYR4 |
| Cyanide | 133.865 µg/L 67% of the EPA limit 200 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019 | 2/4 | SYR4 |
| TTHM | 91.9 µg/L 115% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019
Highest in the ZIP: 106.34 µg/L — WALNUT GROVE WSC · 8,775 people · 2019 | 4/4 | SYR4 |
| Barium | 92.2 µg/L 4.6% of the EPA limit 2000 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019 | 3/4 | SYR4 |
| Chloroform | 70.785 µg/L No EPA limit set Main supplier: CITY OF TYLER · 107,000 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 69.545 µg/L 116% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 38.335 µg/L No EPA limit set Main supplier: CITY OF TYLER · 107,000 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 29.45 µg/L No EPA limit set Main supplier: CITY OF TYLER · 107,000 people · 2019
Highest in the ZIP: 35.18 µg/L — WALNUT GROVE WSC · 8,775 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 33.9 µg/L No EPA limit set Main supplier: CITY OF TYLER · 107,000 people · 2019 | 3/4 | SYR4 |
| Lithium | 20 µg/L No EPA limit set Main supplier: CITY OF TYLER · 107,000 people · 2023 | 1/4 | UCMR-5 |
| Dibromochloromethane | 9.9 µg/L No EPA limit set Main supplier: CITY OF TYLER · 107,000 people · 2019
Highest in the ZIP: 13.63 µg/L — WALNUT GROVE WSC · 8,775 people · 2019 | 4/4 | SYR4 |
| Ethylbenzene | 13 µg/L 1.9% of the EPA limit 700 µg/L Highest in the ZIP: DEAN WSC · 5,907 people · 2019 | 1/4 | SYR4 |
| Lead | 13 µg/L 87% of the EPA limit 15 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019 | 4/4 | SYR4 |
| Monochloroacetic Acid | 10.865 µg/L No EPA limit set Main supplier: CITY OF TYLER · 107,000 people · 2019 | 4/4 | SYR4 |
| Monobromoacetic Acid | 3.305 µg/L No EPA limit set Main supplier: CITY OF TYLER · 107,000 people · 2019
Highest in the ZIP: 7.93 µg/L — SOUTHERN UTILITIES · 69,735 people · 2019 | 3/4 | SYR4 |
| Gross Beta Particle Activity | 5.95 pCi/L No EPA limit set Main supplier: CITY OF TYLER · 107,000 people · 2017 | 2/4 | SYR4 |
| Dibromoacetic Acid | 2.925 µg/L No EPA limit set Main supplier: CITY OF TYLER · 107,000 people · 2019
Highest in the ZIP: 4.95 µg/L — WALNUT GROVE WSC · 8,775 people · 2019 | 3/4 | SYR4 |
| Chromium | 1.007 µg/L 1% of the EPA limit 100 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019
Highest in the ZIP: 3.82 µg/L — WALNUT GROVE WSC · 8,775 people · 2019 | 3/4 | SYR4 |
| Bromoform | 1.588 µg/L No EPA limit set Main supplier: CITY OF TYLER · 107,000 people · 2019
Highest in the ZIP: 3.396 µg/L — SOUTHERN UTILITIES · 69,735 people · 2019 | 4/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3.3 pCi/L 22% of the EPA limit 15 pCi/L Main supplier: CITY OF TYLER · 107,000 people · 2017 | 1/4 | SYR4 |
| Selenium | 1.49 µg/L 3% of the EPA limit 50 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019
Highest in the ZIP: 3.27 µg/L — DEAN WSC · 5,907 people · 2019 | 2/4 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.6895 µg/L 28% of the EPA limit 6 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019 | 1/4 | SYR4 |
| Arsenic | 1.568 µg/L 16% of the EPA limit 10 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 1.5 pCi/L 30% of the EPA limit 5 pCi/L Main supplier: CITY OF TYLER · 107,000 people · 2017 | 3/4 | SYR4 |
| Antimony, Total | 0.2695 µg/L 4.5% of the EPA limit 6 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019 | 1/4 | SYR4 |
| Atrazine | 0.1095 µg/L 3.7% of the EPA limit 3 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019 | 1/4 | SYR4 |
| Benzo(A)Pyrene | 0.0300 µg/L 15% of the EPA limit 0.2000 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019 | 1/4 | SYR4 |
| Thallium, Total | 0.0070 µg/L 0.4% of the EPA limit 2 µg/L Main supplier: CITY OF TYLER · 107,000 people · 2019 | 1/4 | SYR4 |
| Pfba | 0.0056 µg/L No EPA limit set Highest in the ZIP: SOUTHERN UTILITIES · 69,735 people · 2025 | 1/4 | UCMR-5 |
| Pfpea | 0.0046 µg/L No EPA limit set Main supplier: CITY OF TYLER · 107,000 people · 2024 | 1/4 | UCMR-5 |
| Pfhxa | 0.0034 µg/L No EPA limit set Main supplier: CITY OF TYLER · 107,000 people · 2024 | 1/4 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF TYLER · 107,000 people · 2023 | 4/4 | 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 75703
| Supplier | State | Population served |
|---|---|---|
| CITY OF TYLER | TX | 107,000 |
| SOUTHERN UTILITIES | TX | 69,735 |
| WALNUT GROVE WSC | TX | 8,775 |
| DEAN WSC | TX | 5,907 |
Frequently asked questions about ZIP 75703 tap water
Is the tap water in ZIP 75703 safe to drink?
EPA testing detected 37 contaminants across the water suppliers serving ZIP 75703. 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 75703?
4 public water suppliers report EPA drinking-water monitoring for ZIP 75703. Each is listed above with its population served.
What contaminants are in ZIP 75703's water?
EPA monitoring detected Copper, Fluoride, Nitrate, Nitrate-Nitrite, Nitrite, and others across this ZIP's suppliers. The full list with levels and sources is above.