What was found in Kerrville's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 520 µg/L 5.2% of the EPA limit 10000 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019
Highest in the city: 8843.5 µg/L — SPLIT ROCK WATER SYSTEM · 66 people · 2019 | 10/13 | SYR4 |
| Nitrate-Nitrite | 260 µg/L 2.6% of the EPA limit 10000 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2015
Highest in the city: 5729 µg/L — SPLIT ROCK WATER SYSTEM · 66 people · 2015 | 8/13 | SYR4 |
| 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 city: 1892.5 µg/L — WOODS WSC · 315 people · 2018 | 12/13 | 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 city: 369.275 µg/L — WOODS WSC · 315 people · 2019 | 11/13 | SYR4 |
| Barium | 158.95 µg/L 7.9% of the EPA limit 2000 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 12/13 | SYR4 |
| Cyanide | 142.554 µg/L 71% of the EPA limit 200 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 1/13 | 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 | 7/13 | SYR4 |
| Ethylbenzene | 85.85 µg/L 12% of the EPA limit 700 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 1/13 | SYR4 |
| Chloroform | 68.3 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 6/13 | 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 | 9/13 | 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 city: 45.835 pCi/L — KERRVILLE VA HOSPITAL · 1,000 people · 2018 | 12/13 | SYR4 |
| Bromodichloromethane | 40.41 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 5/13 | SYR4 |
| Lithium | 33.4 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2023 | 1/13 | UCMR-5 |
| Dichloroacetic Acid | 29.675 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 4/13 | SYR4 |
| Dibromochloromethane | 27.46 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 7/13 | 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
Highest in the city: 20.8 pCi/L — ARIMAK WATER SUPPLY · 105 people · 2019 | 11/13 | SYR4 |
| Trichloroacetic Acid | 15.45 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 3/13 | SYR4 |
| Chromium | 14.7 µg/L 15% of the EPA limit 100 µg/L Highest in the city: SILVER HILLS PARK · 54 people · 2019 | 2/13 | SYR4 |
| Bromoform | 7.36 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019
Highest in the city: 12.075 µg/L — SPLIT ROCK WATER SYSTEM · 66 people · 2019 | 6/13 | 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 city: 11.5 µg/L — KERRVILLE VA HOSPITAL · 1,000 people · 2017 | 11/13 | SYR4 |
| Monochloroacetic Acid | 4.03 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019
Highest in the city: 11.2 µg/L — SADDLE MOUNTAIN WATER COOPERATIVE · 84 people · 2019 | 5/13 | SYR4 |
| Selenium | 9.87 µg/L 20% of the EPA limit 50 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 3/13 | 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 | 3/13 | SYR4 |
| Dibromoacetic Acid | 7.575 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 5/13 | 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
Highest in the city: 7.505 pCi/L — ARIMAK WATER SUPPLY · 105 people · 2019 | 12/13 | 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 city: 5.38 µg/L — ARIMAK WATER SUPPLY · 105 people · 2019 | 10/13 | SYR4 |
| Arsenic | 3.485 µg/L 35% of the EPA limit 10 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019
Highest in the city: 3.9 µg/L — SILVER HILLS PARK · 54 people · 2019 | 4/13 | SYR4 |
| Monobromoacetic Acid | 1.7 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 1/13 | SYR4 |
| Dalapon | 1.64 µg/L 0.8% of the EPA limit 200 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 1/13 | SYR4 |
| Antimony, Total | 1.5 µg/L 25% of the EPA limit 6 µg/L Highest in the city: SADDLE MOUNTAIN WATER COOPERATIVE · 84 people · 2018 | 1/13 | SYR4 |
| Toluene | 0.8140 µg/L 0.1% of the EPA limit 1000 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 1/13 | SYR4 |
| Trichloroethylene | 0.7000 µg/L 14% of the EPA limit 5 µg/L Highest in the city: KERRVILLE VA HOSPITAL · 1,000 people · 2019 | 1/13 | SYR4 |
| Thallium, Total | 0.3340 µg/L 17% of the EPA limit 2 µg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2019 | 2/13 | SYR4 |
| Lead | 0.0060 mg/L 40% of the EPA limit 0.0150 mg/L Main supplier: CITY OF KERRVILLE · 23,489 people · 2026 | 13/13 | LCR |
| Pfpea | 0.0032 µg/L No EPA limit set Main supplier: CITY OF KERRVILLE · 23,489 people · 2023 | 1/13 | 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.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Kerrville
| Supplier | Population served |
|---|---|
| CITY OF KERRVILLE | 23,489 |
| KERRVILLE VA HOSPITAL | 1,000 |
| KERRVILLE RV PARK AND CABINS | 336 |
| WOODS WSC | 315 |
| KERR VILLA MOBILE HOME PARK | 111 |
| LAS COLINAS OF KERRVILLE | 105 |
| ARIMAK WATER SUPPLY | 105 |
| COUNTRY HILLS WATER | 90 |
| SADDLE MOUNTAIN WATER COOPERATIVE | 84 |
| SPLIT ROCK WATER SYSTEM | 66 |
| HILL COUNTRY RANCH ESTATES | 57 |
| SILVER HILLS PARK | 54 |
| HEAVENS MOBILE HOME PARK | 36 |
Frequently asked questions about Kerrville tap water
Is Kerrville tap water safe to drink?
EPA testing detected 35 contaminants in the water serving Kerrville. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Kerrville?
13 public water suppliers report drinking-water monitoring for Kerrville, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Kerrville's water?
The contaminants EPA monitoring detected in Kerrville include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.