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 | Resolved | 2010-11-01 → 2010-11-30 |
| MCL | Health-based | Resolved | 2010-11-01 → 2010-11-30 |
| MCL | Health-based | Resolved | 2010-11-01 → 2010-11-30 |
| MCL | Health-based | Resolved | 2006-10-01 → 2006-10-31 |
| MCL | Health-based | Resolved | 2006-10-01 → 2006-10-31 |
| MCL | Health-based | Resolved | 2006-10-01 → 2006-10-31 |
| MCL | Health-based | Resolved | 2006-10-01 → 2006-10-31 |
| MCL | Health-based | Resolved | 2004-10-01 → 2004-12-31 |
| MCL | Health-based | Resolved | 2004-10-01 → 2004-12-31 |
| MCL | Health-based | Resolved | 2004-10-01 → 2004-12-31 |
PFAS detected
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 5.625 µg/L No EPA limit set
worst single sample: 6 µg/L | 91/91 | SYR4 | 2012–2019 |
| Chloroform | 11.95 µg/L No EPA limit set
worst single sample: 14.3 µg/L | 91/91 | SYR4 | 2012–2019 |
| TTHM | 17.85 µg/L 22% of the EPA limit 80 µg/L
worst single sample: 18.7 µg/L | 91/91 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 25.02 µg/L No EPA limit set
worst single sample: 30.8 µg/L | 89/91 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 36.84 µg/L 61% of the EPA limit 60 µg/L
worst single sample: 43.2 µg/L | 89/91 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 3.67 µg/L No EPA limit set
worst single sample: 7.5 µg/L | 83/91 | SYR4 | 2012–2019 |
| Copper | 234.45 µg/L 18% of the EPA limit 1300 µg/L
worst single sample: 533 µg/L | 72/90 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 5.3 µg/L No EPA limit set
worst single sample: 9.2 µg/L | 72/91 | SYR4 | 2012–2019 |
| Dibromochloromethane | 2.3 µg/L No EPA limit set
worst single sample: 2.5 µg/L | 66/91 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 7.82 µg/L No EPA limit set
worst single sample: 8.2 µg/L | 35/91 | SYR4 | 2012–2019 |
| Lead | 20.375 µg/L 136% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 269 µg/L | 26/90 | SYR4 | 2013–2019 |
| Monobromoacetic Acid | 2.8 µg/L No EPA limit set | 17/91 | SYR4 | 2012–2019 |
| Lead | 0.0050 mg/L 33% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2023 |
| Bromoform | 1.03 µg/L No EPA limit set | 1/91 | SYR4 | 2012–2019 |
24 contaminants tested, none detected
Utility contact
Frequently asked questions about City of Hillsboro
Is City of Hillsboro tap water safe to drink?
EPA monitoring detected 20 contaminants in City of Hillsboro'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 Hillsboro's water?
EPA monitoring detected Bromodichloromethane, Chloroform, TTHM, Dichloroacetic Acid, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.
How many people does City of Hillsboro serve?
City of Hillsboro reports serving 8,867 people in Texas, per its EPA record.
Has City of Hillsboro had any water quality violations?
The EPA has 46 violations on file for City of Hillsboro, of which 18 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.