What was found in ZIP 79821
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 |
|---|---|---|---|
| Nitrate-Nitrite | 2639.5 µg/L 26% of the EPA limit 10000 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 1/2 | SYR4 |
| Nitrate | 2460 µg/L 25% of the EPA limit 10000 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Fluoride | 1066 µg/L 27% of the EPA limit 4000 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Copper | 470 µg/L 36% of the EPA limit 1300 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Chlorite | 414.8 µg/L 41% of the EPA limit 1000 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 1/2 | SYR4 |
| Lithium | 115.8 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2025
Highest in the ZIP: 170 µg/L — TOWN OF ANTHONY · 5,555 people · 2023 | 2/2 | UCMR-5 |
| Barium | 120 µg/L 6% of the EPA limit 2000 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Nitrite | 90.08 µg/L 9% of the EPA limit 1000 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 1/2 | SYR4 |
| TTHM | 82.23 µg/L 103% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Chloroform | 32.44 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 28.15 µg/L 47% of the EPA limit 60 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 28.105 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 26.605 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Lead | 16.3 µg/L 109% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 13.25 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 1/2 | SYR4 |
| Bromoform | 12.655 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 11.765 pCi/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Arsenic | 11.6 µg/L 116% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 9.66 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 1/2 | SYR4 |
| Selenium | 9.273 µg/L 19% of the EPA limit 50 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 9.205 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Combined Uranium | 8.96 µg/L 30% of the EPA limit 30 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 1/2 | SYR4 |
| Cyanide | 7.2485 µg/L 3.6% of the EPA limit 200 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 1/2 | SYR4 |
| Bromate | 7.04 µg/L 70% of the EPA limit 10 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 5.915 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Chromium | 5.675 µg/L 5.7% of the EPA limit 100 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 5 pCi/L 33% of the EPA limit 15 pCi/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 1/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 4.3 µg/L 72% of the EPA limit 6 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 3.24 pCi/L 65% of the EPA limit 5 pCi/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 2.4 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 1/2 | SYR4 |
| Xylenes, Total | 1.38 µg/L 0% of the EPA limit 10000 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 1/2 | SYR4 |
| Antimony, Total | 1.11315 µg/L 19% of the EPA limit 6 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019 | 1/2 | SYR4 |
| Thallium, Total | 0.0403 µg/L 2% of the EPA limit 2 µg/L Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2019
Highest in the ZIP: 0.5420 µg/L — TOWN OF ANTHONY · 5,555 people · 2019 | 2/2 | SYR4 |
| PFOS | 0.0085 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2025
Highest in the ZIP: 0.0331 µg/L — TOWN OF ANTHONY · 5,555 people · 2023 | 2/2 | UCMR-5 |
| PFOA | 0.0291 µg/L No EPA limit set Highest in the ZIP: TOWN OF ANTHONY · 5,555 people · 2023 | 1/2 | UCMR-5 |
| PFBS | 0.0085 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2025
Highest in the ZIP: 0.0287 µg/L — TOWN OF ANTHONY · 5,555 people · 2023 | 2/2 | UCMR-5 |
| Pfba | 0.0110 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2025 | 1/2 | UCMR-5 |
| Pfpea | 0.0059 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2025
Highest in the ZIP: 0.0081 µg/L — TOWN OF ANTHONY · 5,555 people · 2023 | 2/2 | UCMR-5 |
| Pfhxa | 0.0045 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2025
Highest in the ZIP: 0.0073 µg/L — TOWN OF ANTHONY · 5,555 people · 2023 | 2/2 | UCMR-5 |
| Pfhpa | 0.0062 µg/L No EPA limit set Highest in the ZIP: TOWN OF ANTHONY · 5,555 people · 2023 | 1/2 | UCMR-5 |
| PFHXS | 0.0055 µg/L No EPA limit set Main supplier: EL PASO WATER UTILITIES · 747,168 people · 2025
Highest in the ZIP: 0.0057 µg/L — TOWN OF ANTHONY · 5,555 people · 2023 | 2/2 | UCMR-5 |
| Lead | 0.0012 mg/L 7.7% of the EPA limit 0.0150 mg/L Main supplier: EL PASO WATER UTILITIES · 747,168 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 79821
| Supplier | State | Population served |
|---|---|---|
| EL PASO WATER UTILITIES | TX | 747,168 |
| TOWN OF ANTHONY | TX | 5,555 |
Frequently asked questions about ZIP 79821 tap water
Is the tap water in ZIP 79821 safe to drink?
EPA testing detected 42 contaminants across the water suppliers serving ZIP 79821. 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 79821?
2 public water suppliers report EPA drinking-water monitoring for ZIP 79821. Each is listed above with its population served.
What contaminants are in ZIP 79821's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Copper, Chlorite, and others across this ZIP's suppliers. The full list with levels and sources is above.