What was found in ZIP 78572
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 | 232 µg/L 18% of the EPA limit 1300 µg/L Main supplier: CITY OF MISSION · 77,058 people · 2017
Highest in the ZIP: 1200 µg/L — HIDALGO COUNTY MUD 1 · 8,420 people · 2017 | 4/4 | SYR4 |
| Chlorite | 710 µg/L 71% of the EPA limit 1000 µg/L Main supplier: CITY OF MISSION · 77,058 people · 2019 | 3/4 | SYR4 |
| Nitrate | 702.5 µg/L 7% of the EPA limit 10000 µg/L Main supplier: CITY OF MISSION · 77,058 people · 2019 | 4/4 | SYR4 |
| Fluoride | 592.5 µg/L 15% of the EPA limit 4000 µg/L Main supplier: CITY OF MISSION · 77,058 people · 2019
Highest in the ZIP: 690.5 µg/L — SHARYLAND WSC · 68,562 people · 2019 | 4/4 | SYR4 |
| Barium | 109.05 µg/L 5.5% of the EPA limit 2000 µg/L Main supplier: CITY OF MISSION · 77,058 people · 2019
Highest in the ZIP: 133.95 µg/L — AGUA SUD · 53,796 people · 2019 | 4/4 | SYR4 |
| Cyanide | 20 µg/L 10% of the EPA limit 200 µg/L Main supplier: CITY OF MISSION · 77,058 people · 2019
Highest in the ZIP: 109 µg/L — HIDALGO COUNTY MUD 1 · 8,420 people · 2019 | 4/4 | SYR4 |
| TTHM | 74.27 µg/L 93% of the EPA limit 80 µg/L Main supplier: CITY OF MISSION · 77,058 people · 2019
Highest in the ZIP: 82.065 µg/L — AGUA SUD · 53,796 people · 2019 | 4/4 | SYR4 |
| Lithium | 42.9 µg/L No EPA limit set Main supplier: CITY OF MISSION · 77,058 people · 2024
Highest in the ZIP: 64.4 µg/L — AGUA SUD · 53,796 people · 2024 | 4/4 | UCMR-5 |
| Dibromochloromethane | 29.675 µg/L No EPA limit set Main supplier: CITY OF MISSION · 77,058 people · 2019
Highest in the ZIP: 34.256 µg/L — AGUA SUD · 53,796 people · 2019 | 4/4 | SYR4 |
| Bromoform | 33.093 µg/L No EPA limit set Main supplier: CITY OF MISSION · 77,058 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 27.375 µg/L 46% of the EPA limit 60 µg/L Main supplier: CITY OF MISSION · 77,058 people · 2019
Highest in the ZIP: 32.575 µg/L — AGUA SUD · 53,796 people · 2019 | 4/4 | SYR4 |
| Dibromoacetic Acid | 16.94 µg/L No EPA limit set Main supplier: CITY OF MISSION · 77,058 people · 2019
Highest in the ZIP: 19.64 µg/L — AGUA SUD · 53,796 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 15.485 µg/L No EPA limit set Main supplier: CITY OF MISSION · 77,058 people · 2019
Highest in the ZIP: 17.22 µg/L — AGUA SUD · 53,796 people · 2019 | 4/4 | SYR4 |
| Lead | 14.1 µg/L 94% of the EPA limit 15 µg/L Main supplier: CITY OF MISSION · 77,058 people · 2017 | 4/4 | SYR4 |
| Monochloroacetic Acid | 5.365 µg/L No EPA limit set Main supplier: CITY OF MISSION · 77,058 people · 2019
Highest in the ZIP: 13.78 µg/L — SHARYLAND WSC · 68,562 people · 2019 | 4/4 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 11 µg/L 183% of the EPA limit, at the 95th percentile of samples — 6 µg/L Main supplier: CITY OF MISSION · 77,058 people · 2019 | 2/4 | SYR4 |
| Dichloroacetic Acid | 9.57 µg/L No EPA limit set Main supplier: CITY OF MISSION · 77,058 people · 2019
Highest in the ZIP: 10.34 µg/L — AGUA SUD · 53,796 people · 2019 | 4/4 | SYR4 |
| Gross Beta Particle Activity | 7.03 pCi/L No EPA limit set Main supplier: CITY OF MISSION · 77,058 people · 2017
Highest in the ZIP: 7.9 pCi/L — SHARYLAND WSC · 68,562 people · 2019 | 4/4 | SYR4 |
| Monobromoacetic Acid | 2.85 µg/L No EPA limit set Main supplier: CITY OF MISSION · 77,058 people · 2019
Highest in the ZIP: 6.95 µg/L — AGUA SUD · 53,796 people · 2019 | 4/4 | SYR4 |
| Chloroform | 6.2 µg/L No EPA limit set Main supplier: CITY OF MISSION · 77,058 people · 2019
Highest in the ZIP: 6.84 µg/L — AGUA SUD · 53,796 people · 2019 | 4/4 | SYR4 |
| Selenium | 5.34 µg/L 11% of the EPA limit 50 µg/L Main supplier: CITY OF MISSION · 77,058 people · 2019
Highest in the ZIP: 5.94 µg/L — SHARYLAND WSC · 68,562 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 3.715 µg/L No EPA limit set Main supplier: CITY OF MISSION · 77,058 people · 2019
Highest in the ZIP: 4.7 µg/L — AGUA SUD · 53,796 people · 2019 | 4/4 | SYR4 |
| Arsenic | 2.485 µg/L 25% of the EPA limit 10 µg/L Main supplier: CITY OF MISSION · 77,058 people · 2019
Highest in the ZIP: 3.07 µg/L — SHARYLAND WSC · 68,562 people · 2019 | 4/4 | SYR4 |
| Combined Uranium | 2.26 µg/L 7.5% of the EPA limit 30 µg/L Main supplier: CITY OF MISSION · 77,058 people · 2017
Highest in the ZIP: 2.785 µg/L — SHARYLAND WSC · 68,562 people · 2019 | 4/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2 pCi/L 13% of the EPA limit 15 pCi/L Main supplier: CITY OF MISSION · 77,058 people · 2017 | 3/4 | SYR4 |
| Chromium | 1.64 µg/L 1.6% of the EPA limit 100 µg/L Highest in the ZIP: HIDALGO COUNTY MUD 1 · 8,420 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 MISSION · 77,058 people · 2017 | 3/4 | SYR4 |
| Antimony, Total | 0.6430 µg/L 11% of the EPA limit 6 µg/L Highest in the ZIP: AGUA SUD · 53,796 people · 2019 | 2/4 | SYR4 |
| Atrazine | 0.1000 µg/L 3.3% of the EPA limit 3 µg/L Main supplier: CITY OF MISSION · 77,058 people · 2019 | 2/4 | SYR4 |
| Endrin | 0.0400 µg/L 2% of the EPA limit 2 µg/L Main supplier: CITY OF MISSION · 77,058 people · 2019 | 1/4 | SYR4 |
| Thallium, Total | 0.0300 µg/L 1.5% of the EPA limit 2 µg/L Highest in the ZIP: HIDALGO COUNTY MUD 1 · 8,420 people · 2019 | 1/4 | SYR4 |
| Pfhxa | 0.0125 µg/L No EPA limit set Highest in the ZIP: SHARYLAND WSC · 68,562 people · 2025 | 3/4 | UCMR-5 |
| Pfpea | 0.0123 µg/L No EPA limit set Highest in the ZIP: SHARYLAND WSC · 68,562 people · 2025 | 3/4 | UCMR-5 |
| Pfba | 0.0073 µg/L No EPA limit set Main supplier: CITY OF MISSION · 77,058 people · 2024
Highest in the ZIP: 0.0119 µg/L — AGUA SUD · 53,796 people · 2025 | 4/4 | UCMR-5 |
| PFOS | 0.0068 µg/L No EPA limit set Highest in the ZIP: SHARYLAND WSC · 68,562 people · 2025 | 1/4 | UCMR-5 |
| PFHXS | 0.0064 µg/L No EPA limit set Highest in the ZIP: SHARYLAND WSC · 68,562 people · 2025 | 1/4 | UCMR-5 |
| Pfhpa | 0.0045 µg/L No EPA limit set Highest in the ZIP: SHARYLAND WSC · 68,562 people · 2025 | 1/4 | UCMR-5 |
| PFOA | 0.0043 µg/L No EPA limit set Highest in the ZIP: SHARYLAND WSC · 68,562 people · 2025 | 1/4 | UCMR-5 |
| PFBS | 0.0030 µg/L No EPA limit set Highest in the ZIP: SHARYLAND WSC · 68,562 people · 2025 | 1/4 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF MISSION · 77,058 people · 2023
Highest in the ZIP: 0.0011 mg/L — HIDALGO COUNTY MUD 1 · 8,420 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 78572
| Supplier | State | Population served |
|---|---|---|
| CITY OF MISSION | TX | 77,058 |
| SHARYLAND WSC | TX | 68,562 |
| AGUA SUD | TX | 53,796 |
| HIDALGO COUNTY MUD 1 | TX | 8,420 |
Frequently asked questions about ZIP 78572 tap water
Is the tap water in ZIP 78572 safe to drink?
EPA testing detected 40 contaminants across the water suppliers serving ZIP 78572. 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 78572?
4 public water suppliers report EPA drinking-water monitoring for ZIP 78572. Each is listed above with its population served.
What contaminants are in ZIP 78572's water?
EPA monitoring detected Copper, Chlorite, Nitrate, Fluoride, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.