What was found in ZIP 79720
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 | 575 µg/L 44% of the EPA limit 1300 µg/L Main supplier: CITY OF BIG SPRING · 27,282 people · 2019
Highest in the ZIP: 1520 µg/L — CITY OF COAHOMA · 3,552 people · 2019 | 2/2 | SYR4 |
| TTHM | 62.295 µg/L 78% of the EPA limit 80 µg/L Main supplier: CITY OF BIG SPRING · 27,282 people · 2019
Highest in the ZIP: 171.8 µg/L — CITY OF COAHOMA · 3,552 people · 2019 | 2/2 | SYR4 |
| Bromoform | 35.52 µg/L No EPA limit set Main supplier: CITY OF BIG SPRING · 27,282 people · 2019
Highest in the ZIP: 74.76 µg/L — CITY OF COAHOMA · 3,552 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 33.36 µg/L 56% of the EPA limit 60 µg/L Main supplier: CITY OF BIG SPRING · 27,282 people · 2019
Highest in the ZIP: 55.5 µg/L — CITY OF COAHOMA · 3,552 people · 2019 | 2/2 | SYR4 |
| Lithium | 55.4 µg/L No EPA limit set Main supplier: CITY OF BIG SPRING · 27,282 people · 2024 | 2/2 | UCMR-5 |
| Dibromochloromethane | 17.83 µg/L No EPA limit set Main supplier: CITY OF BIG SPRING · 27,282 people · 2019
Highest in the ZIP: 51.28 µg/L — CITY OF COAHOMA · 3,552 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 13.83 µg/L No EPA limit set Main supplier: CITY OF BIG SPRING · 27,282 people · 2019
Highest in the ZIP: 39.66 µg/L — CITY OF COAHOMA · 3,552 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 16.64 µg/L No EPA limit set Main supplier: CITY OF BIG SPRING · 27,282 people · 2019
Highest in the ZIP: 28.34 µg/L — CITY OF COAHOMA · 3,552 people · 2019 | 2/2 | SYR4 |
| Chloroform | 7.0325 µg/L No EPA limit set Main supplier: CITY OF BIG SPRING · 27,282 people · 2019
Highest in the ZIP: 23.3 µg/L — CITY OF COAHOMA · 3,552 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 8.91 µg/L No EPA limit set Main supplier: CITY OF BIG SPRING · 27,282 people · 2019
Highest in the ZIP: 21.46 µg/L — CITY OF COAHOMA · 3,552 people · 2019 | 2/2 | SYR4 |
| Lead | 13.85 µg/L 92% of the EPA limit 15 µg/L Main supplier: CITY OF BIG SPRING · 27,282 people · 2019
Highest in the ZIP: 16.17 µg/L — CITY OF COAHOMA · 3,552 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 13.595 µg/L No EPA limit set Main supplier: CITY OF BIG SPRING · 27,282 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 4.16 µg/L No EPA limit set Main supplier: CITY OF BIG SPRING · 27,282 people · 2019
Highest in the ZIP: 8.215 µg/L — CITY OF COAHOMA · 3,552 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 3.475 µg/L No EPA limit set Main supplier: CITY OF BIG SPRING · 27,282 people · 2019
Highest in the ZIP: 5.535 µg/L — CITY OF COAHOMA · 3,552 people · 2019 | 2/2 | SYR4 |
| Pfba | 0.0125 µg/L No EPA limit set Main supplier: CITY OF BIG SPRING · 27,282 people · 2024 | 2/2 | UCMR-5 |
| PFHXS | 0.0111 µg/L No EPA limit set Main supplier: CITY OF BIG SPRING · 27,282 people · 2024 | 2/2 | UCMR-5 |
| PFBS | 0.0058 µg/L No EPA limit set Main supplier: CITY OF BIG SPRING · 27,282 people · 2024 | 1/2 | UCMR-5 |
| PFOS | 0.0044 µg/L No EPA limit set Main supplier: CITY OF BIG SPRING · 27,282 people · 2024 | 1/2 | UCMR-5 |
| Pfhxa | 0.0041 µg/L No EPA limit set Main supplier: CITY OF BIG SPRING · 27,282 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0031 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: CITY OF BIG SPRING · 27,282 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 79720
| Supplier | State | Population served |
|---|---|---|
| CITY OF BIG SPRING | TX | 27,282 |
| CITY OF COAHOMA | TX | 3,552 |
Frequently asked questions about ZIP 79720 tap water
Is the tap water in ZIP 79720 safe to drink?
EPA testing detected 20 contaminants across the water suppliers serving ZIP 79720. 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 79720?
2 public water suppliers report EPA drinking-water monitoring for ZIP 79720. Each is listed above with its population served.
What contaminants are in ZIP 79720's water?
EPA monitoring detected Copper, TTHM, Bromoform, Total Haloacetic Acids (HAA5), Lithium, and others across this ZIP's suppliers. The full list with levels and sources is above.