What was found in ZIP 78028
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 |
|---|---|---|---|
| Fluoride | 1029.5 µg/L 26% of the EPA limit 4000 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019
Highest in the ZIP: 1626.5 µg/L — LOMA VISTA WATER SYSTEM · 3,720 people · 2017 | 3/3 | SYR4 |
| Nitrate | 520 µg/L 5.2% of the EPA limit 10000 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 3/3 | SYR4 |
| Copper | 207.9 µg/L 16% of the EPA limit 1300 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019
Highest in the ZIP: 380.95 µg/L — INGRAM WATER SUPPLY · 5,955 people · 2019 | 3/3 | SYR4 |
| Nitrate-Nitrite | 260 µg/L 2.6% of the EPA limit 10000 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2015 | 3/3 | SYR4 |
| Barium | 158.95 µg/L 7.9% of the EPA limit 2000 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 3/3 | SYR4 |
| Cyanide | 142.554 µg/L 71% of the EPA limit 200 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 1/3 | SYR4 |
| TTHM | 132.11 µg/L 165% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 2/3 | SYR4 |
| Ethylbenzene | 85.85 µg/L 12% of the EPA limit 700 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 1/3 | SYR4 |
| Lithium | 33.4 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2023
Highest in the ZIP: 69.7 µg/L — LOMA VISTA WATER SYSTEM · 3,720 people · 2025 | 3/3 | UCMR-5 |
| Chloroform | 68.3 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 1/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 52.52 µg/L 88% of the EPA limit 60 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 40.41 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 2/3 | SYR4 |
| Dichloroacetic Acid | 29.675 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 27.46 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 2/3 | SYR4 |
| Trichloroacetic Acid | 15.45 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 2/3 | SYR4 |
| Gross Beta Particle Activity | 12.6 pCi/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019
Highest in the ZIP: 14.41 pCi/L — LOMA VISTA WATER SYSTEM · 3,720 people · 2018 | 3/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 13.74 pCi/L 92% of the EPA limit 15 pCi/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 3/3 | SYR4 |
| Lead | 6.8765 µg/L 46% of the EPA limit 15 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019
Highest in the ZIP: 11.46 µg/L — INGRAM WATER SUPPLY · 5,955 people · 2019 | 3/3 | SYR4 |
| Chromium | 11.1 µg/L 11% of the EPA limit 100 µg/L Highest in the ZIP: INGRAM WATER SUPPLY · 5,955 people · 2019 | 1/3 | SYR4 |
| Selenium | 9.87 µg/L 20% of the EPA limit 50 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 2/3 | SYR4 |
| Xylenes, Total | 9.54 µg/L 0.1% of the EPA limit 10000 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 1/3 | SYR4 |
| Dibromoacetic Acid | 7.575 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 2/3 | SYR4 |
| Bromoform | 7.36 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 1/3 | SYR4 |
| Combined Uranium | 4.63 µg/L 15% of the EPA limit 30 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019
Highest in the ZIP: 7.075 µg/L — INGRAM WATER SUPPLY · 5,955 people · 2019 | 3/3 | SYR4 |
| Combined Radium (-226 And -228) | 5.3935 pCi/L 108% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 4.03 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 1/3 | SYR4 |
| Arsenic | 3.485 µg/L 35% of the EPA limit 10 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 1/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 2.5985 µg/L 43% of the EPA limit 6 µg/L Highest in the ZIP: INGRAM WATER SUPPLY · 5,955 people · 2019 | 1/3 | SYR4 |
| Toluene | 0.8140 µg/L 0.1% of the EPA limit 1000 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019
Highest in the ZIP: 2.2 µg/L — LOMA VISTA WATER SYSTEM · 3,720 people · 2019 | 2/3 | SYR4 |
| Monobromoacetic Acid | 1.7 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 1/3 | SYR4 |
| Dalapon | 1.64 µg/L 0.8% of the EPA limit 200 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 1/3 | SYR4 |
| Thallium, Total | 0.3340 µg/L 17% of the EPA limit 2 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 1/3 | SYR4 |
| Lead | 0.0060 mg/L 40% of the EPA limit 0.0150 mg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2026 | 3/3 | LCR |
| Pfpea | 0.0032 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2023 | 1/3 | UCMR-5 |
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 78028
| Supplier | State | Population served |
|---|---|---|
| CITY OF KERRVILLE | TX | 23,489 |
| INGRAM WATER SUPPLY | TX | 5,955 |
| LOMA VISTA WATER SYSTEM | TX | 3,720 |
Frequently asked questions about ZIP 78028 tap water
Is the tap water in ZIP 78028 safe to drink?
EPA testing detected 34 contaminants across the water suppliers serving ZIP 78028. 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 78028?
3 public water suppliers report EPA drinking-water monitoring for ZIP 78028. Each is listed above with its population served.
What contaminants are in ZIP 78028's water?
EPA monitoring detected Fluoride, Nitrate, Copper, Nitrate-Nitrite, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.