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 |
|---|---|---|---|
| TT | Health-based | Unaddressed | 2024-10-17 |
| TT | Health-based | Unaddressed | 2024-10-17 |
| TT | Health-based | Archived | 1993-08-01 → 1993-08-31 |
| Other | Monitoring | Unaddressed | 2026-04-02 |
| Other | Monitoring | Unaddressed | 2025-05-01 |
| RPT | Monitoring | Unaddressed | 2024-10-17 |
| RPT | Monitoring | Unaddressed | 2024-10-17 |
| Other | Monitoring | Resolved | 2022-07-01 |
| Other | Monitoring | Resolved | 2022-07-01 |
| Other | Monitoring | Resolved | 2022-07-01 |
PFAS detected
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Chlorite | 710 µg/L 71% of the EPA limit 1000 µg/L
worst single sample: 1340 µg/L | 201/231 | SYR4 | 2013–2019 |
| Bromodichloromethane | 15.23 µg/L No EPA limit set
worst single sample: 18.7 µg/L | 115/115 | SYR4 | 2012–2019 |
| Bromoform | 21.48 µg/L No EPA limit set
worst single sample: 41.1 µg/L | 115/115 | SYR4 | 2012–2019 |
| Dibromochloromethane | 18.06 µg/L No EPA limit set
worst single sample: 36.6 µg/L | 115/115 | SYR4 | 2012–2019 |
| Chloroform | 9.745 µg/L No EPA limit set
worst single sample: 11.4 µg/L | 112/115 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 9.3 µg/L No EPA limit set
worst single sample: 13.6 µg/L | 107/107 | SYR4 | 2012–2019 |
| TTHM | 57.2 µg/L 72% of the EPA limit 80 µg/L
worst single sample: 105 µg/L | 107/107 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 22.58 µg/L 38% of the EPA limit 60 µg/L
worst single sample: 34.9 µg/L | 107/107 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 13.2 µg/L No EPA limit set
worst single sample: 19.6 µg/L | 106/107 | SYR4 | 2012–2019 |
| Copper | 318.4 µg/L 24% of the EPA limit 1300 µg/L
worst single sample: 1190 µg/L | 95/95 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 4.32 µg/L No EPA limit set
worst single sample: 5.7 µg/L | 89/107 | SYR4 | 2012–2019 |
| Lead | 6.3905 µg/L 43% of the EPA limit 15 µg/L
worst single sample: 29 µg/L | 22/95 | SYR4 | 2013–2019 |
| Nitrate | 510 µg/L 5.1% of the EPA limit 10000 µg/L | 20/20 | SYR4 | 2012–2019 |
| Lead | 0.0015 mg/L 10% of the EPA limit 0.0150 mg/L | 13/13 | LCR | 2025 |
| Monobromoacetic Acid | 1.935 µg/L No EPA limit set
worst single sample: 2.1 µg/L | 12/107 | SYR4 | 2012–2019 |
| Fluoride | 556.5 µg/L 14% of the EPA limit 4000 µg/L
worst single sample: 560 µg/L | 8/8 | SYR4 | 2012–2019 |
| Barium | 115.1 µg/L 5.8% of the EPA limit 2000 µg/L
worst single sample: 116 µg/L | 7/7 | SYR4 | 2013–2019 |
| Selenium | 4.4 µg/L 8.8% of the EPA limit 50 µg/L | 7/7 | SYR4 | 2013–2019 |
| Arsenic | 2.72 µg/L 27% of the EPA limit 10 µg/L
worst single sample: 2.8 µg/L | 5/7 | SYR4 | 2013–2019 |
| Cyanide | 150 µg/L 75% of the EPA limit 200 µg/L | 5/6 | SYR4 | 2014–2019 |
| Monochloroacetic Acid | 6.33 µg/L No EPA limit set
worst single sample: 6.6 µg/L | 4/107 | SYR4 | 2012–2019 |
| Lithium | 36.1 µg/L No EPA limit set | 4/4 | UCMR-5 | 2025 |
| Atrazine | 0.1000 µg/L 3.3% of the EPA limit 3 µg/L | 1/8 | SYR4 | 2012–2019 |
| Combined Uranium | 1.3 µg/L 4.3% of the EPA limit 30 µg/L | 1/1 | SYR4 | 2017 |
| Gross Beta Particle Activity | 5.2 pCi/L No EPA limit set | 1/1 | SYR4 | 2017 |
77 contaminants tested, none detected
Utility contact
Frequently asked questions about City of Weslaco
Is City of Weslaco tap water safe to drink?
EPA monitoring detected 31 contaminants in City of Weslaco'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 City of Weslaco's water?
EPA monitoring detected Chlorite, Bromodichloromethane, Bromoform, Dibromochloromethane, Chloroform, and others. The full list with the level and data source for each is above.
How many people does City of Weslaco serve?
City of Weslaco reports serving 40,033 people in Texas, per its EPA record.
Has City of Weslaco had any water quality violations?
The EPA has 26 violations on file for City of Weslaco, of which 3 are health-based (a contaminant limit or required treatment was breached) and 6 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.