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 |
|---|---|---|---|
| MON | Monitoring | Resolved | 2016-11-01 → 2016-11-30 |
| MON | Monitoring | Resolved | 2016-11-01 → 2016-11-30 |
| MON | Monitoring | Resolved | 2016-11-01 → 2016-11-30 |
| MON | Monitoring | Resolved | 2016-11-01 → 2016-11-30 |
| MR | Monitoring | Resolved | 2016-10-01 |
| MR | Monitoring | Resolved | 2016-10-01 |
| MR | Monitoring | Resolved | 2016-10-01 |
| MR | Monitoring | Resolved | 2016-10-01 |
| MR | Monitoring | Resolved | 2015-10-01 |
| MR | Monitoring | Resolved | 2015-10-01 |
PFAS detected
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 15.2 µg/L No EPA limit set
worst single sample: 44 µg/L | 270/274 | SYR4 | 2012–2019 |
| Chloroform | 38.01 µg/L No EPA limit set
worst single sample: 225 µg/L | 270/274 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 35.96 µg/L No EPA limit set
worst single sample: 77.9 µg/L | 254/254 | SYR4 | 2012–2019 |
| TTHM | 50.8 µg/L 64% of the EPA limit 80 µg/L
worst single sample: 90.8 µg/L | 254/254 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 50.58 µg/L 84% of the EPA limit 60 µg/L
worst single sample: 99 µg/L | 254/254 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 11.95 µg/L No EPA limit set
worst single sample: 23.7 µg/L | 251/254 | SYR4 | 2012–2019 |
| Dibromochloromethane | 7.205 µg/L No EPA limit set
worst single sample: 26 µg/L | 220/274 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 5.05 µg/L No EPA limit set
worst single sample: 11.1 µg/L | 166/254 | SYR4 | 2012–2019 |
| Copper | 711.85 µg/L 55% of the EPA limit 1300 µg/L
worst single sample: 904 µg/L | 108/111 | SYR4 | 2012–2017 |
| Nitrate | 820 µg/L 8.2% of the EPA limit 10000 µg/L
worst single sample: 850 µg/L | 106/108 | SYR4 | 2012–2019 |
| Bromoform | 11.76 µg/L No EPA limit set
worst single sample: 24 µg/L | 47/274 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 6.92 µg/L No EPA limit set
worst single sample: 7.7 µg/L | 37/254 | SYR4 | 2012–2019 |
| Lead | 7.33 µg/L 49% of the EPA limit 15 µg/L
worst single sample: 25.2 µg/L | 34/111 | SYR4 | 2012–2017 |
| Atrazine | 0.3400 µg/L 11% of the EPA limit 3 µg/L
worst single sample: 0.8300 µg/L | 25/37 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 552 µg/L 5.5% of the EPA limit 10000 µg/L
worst single sample: 1080 µg/L | 23/23 | SYR4 | 2012–2015 |
| Simazine | 0.1630 µg/L 4.1% of the EPA limit 4 µg/L
worst single sample: 0.1900 µg/L | 19/37 | SYR4 | 2012–2019 |
| Lead | 0.0012 mg/L 8% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2023 |
| Barium | 133.9 µg/L 6.7% of the EPA limit 2000 µg/L
worst single sample: 135 µg/L | 12/12 | SYR4 | 2014–2019 |
| Nitrite | 120 µg/L 12% of the EPA limit 1000 µg/L
worst single sample: 230 µg/L | 12/23 | SYR4 | 2012–2015 |
| Fluoride | 1054 µg/L 26% of the EPA limit 4000 µg/L
worst single sample: 1090 µg/L | 10/10 | SYR4 | 2014–2017 |
| Lithium | 12.9 µg/L No EPA limit set | 6/18 | UCMR-5 | 2024 |
| Hexachlorocyclopentadiene | 0.1200 µg/L 0.2% of the EPA limit 50 µg/L | 3/37 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 2.861 pCi/L 57% of the EPA limit 5 pCi/L
worst single sample: 2.87 pCi/L | 2/2 | SYR4 | 2017 |
| Cyanide | 30 µg/L 15% of the EPA limit 200 µg/L | 1/10 | SYR4 | 2014–2017 |
| Dalapon | 1.1 µg/L 0.6% of the EPA limit 200 µg/L | 1/264 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 4.1 pCi/L No EPA limit set | 1/5 | SYR4 | 2017 |
| Monobromoacetic Acid | 1 µg/L No EPA limit set | 1/254 | SYR4 | 2012–2019 |
74 contaminants tested, none detected
Utility contact
Frequently asked questions about Clear Lake City Water Authority
Is Clear Lake City Water Authority tap water safe to drink?
EPA monitoring detected 35 contaminants in Clear Lake City Water Authority'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 Clear Lake City Water Authority's water?
EPA monitoring detected Bromodichloromethane, Chloroform, Dichloroacetic Acid, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.
How many people does Clear Lake City Water Authority serve?
Clear Lake City Water Authority reports serving 89,702 people in Texas, per its EPA record.
Has Clear Lake City Water Authority had any water quality violations?
The EPA has 12 violations on file for Clear Lake City Water Authority, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 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.