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 | Archived | 1991-06-01 → 1991-06-30 |
| RPT | Monitoring | Unaddressed | 2025-07-02 |
| Other | Monitoring | Unaddressed | 2019-02-25 |
| MR | Monitoring | Resolved | 2018-12-30 |
| MR | Monitoring | Resolved | 2018-12-30 |
| MR | Monitoring | Resolved | 2018-10-01 |
| MR | Monitoring | Resolved | 2018-10-01 |
| MR | Monitoring | Resolved | 2018-10-01 |
| MR | Monitoring | Resolved | 2018-10-01 |
| MR | Monitoring | Resolved | 2017-06-22 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 257 µg/L 20% of the EPA limit 1300 µg/L | 49/63 | SYR4 | 2015–2019 |
| Nitrate | 80 µg/L 0.8% of the EPA limit 10000 µg/L | 48/48 | SYR4 | 2012–2019 |
| Bromoform | 5.3 µg/L No EPA limit set | 23/24 | SYR4 | 2013–2019 |
| Dibromochloromethane | 4 µg/L No EPA limit set | 23/24 | SYR4 | 2013–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 12/12 | LCR | 2023 |
| Lead | 100.2 µg/L 668% of the EPA limit, in the worst sample — 15 µg/L | 9/63 | SYR4 | 2015–2019 |
| Nitrate-Nitrite | 80 µg/L 0.8% of the EPA limit 10000 µg/L | 9/9 | SYR4 | 2012–2015 |
| TTHM | 10.8 µg/L 14% of the EPA limit 80 µg/L | 9/9 | SYR4 | 2013–2019 |
| Bromodichloromethane | 1.5 µg/L No EPA limit set | 8/24 | SYR4 | 2013–2019 |
| Barium | 78.8 µg/L 3.9% of the EPA limit 2000 µg/L | 6/6 | SYR4 | 2016–2019 |
| Fluoride | 1520 µg/L 38% of the EPA limit 4000 µg/L | 6/6 | SYR4 | 2014–2017 |
| Total Haloacetic Acids (HAA5) | 1.8 µg/L 3% of the EPA limit 60 µg/L | 6/9 | SYR4 | 2013–2019 |
| Lithium | 86.2 µg/L No EPA limit set | 6/6 | UCMR-5 | 2023 |
| Dibromoacetic Acid | 1.8 µg/L No EPA limit set | 5/9 | SYR4 | 2013–2019 |
| Combined Radium (-226 And -228) | 1.5 pCi/L 30% of the EPA limit 5 pCi/L | 1/1 | SYR4 | 2015 |
| Monobromoacetic Acid | 1.3 µg/L No EPA limit set | 1/9 | SYR4 | 2013–2019 |
93 contaminants tested, none detected
Utility contact
Frequently asked questions about Chalk Bluff Wsc
Is Chalk Bluff Wsc tap water safe to drink?
EPA monitoring detected 16 contaminants in Chalk Bluff 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 Chalk Bluff Wsc's water?
EPA monitoring detected Copper, Nitrate, Bromoform, Dibromochloromethane, Lead, and others. The full list with the level and data source for each is above.
How many people does Chalk Bluff Wsc serve?
Chalk Bluff Wsc reports serving 3,852 people in Texas, per its EPA record.
Has Chalk Bluff Wsc had any water quality violations?
The EPA has 25 violations on file for Chalk Bluff Wsc, of which 1 is 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.