Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Unaddressed | 2026-04-01 → 2026-06-30 |
| MCL | Health-based | Unaddressed | 2026-04-01 → 2026-06-30 |
| MCL | Health-based | Archived | 2026-01-01 → 2026-03-31 |
| MCL | Health-based | Archived | 2026-01-01 → 2026-03-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-07-01 → 2025-09-30 |
| MCL | Health-based | Archived | 2025-07-01 → 2025-09-30 |
| MCL | Health-based | Archived | 2025-07-01 → 2025-09-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 51.8 µg/L No EPA limit set
worst single sample: 155 µg/L | 64/64 | SYR4 | 2012–2019 |
| TTHM | 315.555 µg/L 394% of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 511 µg/L | 64/64 | SYR4 | 2012–2019 |
| Dibromochloromethane | 102.225 µg/L No EPA limit set
worst single sample: 199 µg/L | 60/64 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 90.74 µg/L 151% of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 136 µg/L | 53/64 | SYR4 | 2012–2019 |
| Chloroform | 48.8 µg/L No EPA limit set
worst single sample: 211 µg/L | 51/64 | SYR4 | 2012–2019 |
| Bromoform | 171.98 µg/L No EPA limit set
worst single sample: 267 µg/L | 49/64 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 27.29 µg/L No EPA limit set
worst single sample: 88.7 µg/L | 39/64 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 59.49 µg/L No EPA limit set
worst single sample: 107 µg/L | 34/64 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 21.07 µg/L No EPA limit set
worst single sample: 50.3 µg/L | 30/64 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 8.475 µg/L No EPA limit set
worst single sample: 10.6 µg/L | 18/64 | SYR4 | 2012–2019 |
| Copper | 382 µg/L 29% of the EPA limit 1300 µg/L
worst single sample: 406 µg/L | 16/20 | SYR4 | 2014–2017 |
| Monobromoacetic Acid | 11.59 µg/L No EPA limit set
worst single sample: 11.8 µg/L | 15/64 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 8/8 | LCR | 2025 |
| Lead | 4.3 µg/L 29% of the EPA limit 15 µg/L
worst single sample: 4.9 µg/L | 6/20 | SYR4 | 2014–2017 |
Utility contact
Frequently asked questions about Callahan County Wsc
Is Callahan County Wsc tap water safe to drink?
EPA monitoring detected 14 contaminants in Callahan County Wsc's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in Callahan County Wsc's water?
EPA monitoring detected Bromodichloromethane, TTHM, Dibromochloromethane, Total Haloacetic Acids (HAA5), Chloroform, and others. The full list with the level and data source for each is above.
How many people does Callahan County Wsc serve?
Callahan County Wsc reports serving 3,741 people in Texas, per its EPA record.
Has Callahan County Wsc had any water quality violations?
The EPA has 389 violations on file for Callahan County Wsc, of which 333 are health-based (a contaminant limit or required treatment was breached) and 2 remain open. The rest are monitoring or reporting failures.
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.