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 | 2013-07-01 → 2013-07-31 |
| MCL | Health-based | Resolved | 2013-07-01 → 2013-07-31 |
| MCL | Health-based | Resolved | 2013-07-01 → 2013-07-31 |
| MCL | Health-based | Resolved | 2013-07-01 → 2013-07-31 |
| Other | Monitoring | Unaddressed | 2024-07-01 |
| MR | Monitoring | Resolved | 2017-12-30 |
| MR | Monitoring | Resolved | 2017-12-30 |
| MR | Monitoring | Resolved | 2013-04-01 → 2013-06-30 |
| MR | Monitoring | Resolved | 2013-04-01 → 2013-06-30 |
| MR | Monitoring | Resolved | 2013-04-01 → 2013-06-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromoform | 36.125 µg/L No EPA limit set
worst single sample: 44.3 µg/L | 94/110 | SYR4 | 2012–2019 |
| TTHM | 44.415 µg/L 56% of the EPA limit 80 µg/L
worst single sample: 49.8 µg/L | 94/102 | SYR4 | 2012–2019 |
| Copper | 245.45 µg/L 19% of the EPA limit 1300 µg/L
worst single sample: 299 µg/L | 88/92 | SYR4 | 2013–2017 |
| Total Haloacetic Acids (HAA5) | 9.7 µg/L 16% of the EPA limit 60 µg/L
worst single sample: 21.3 µg/L | 71/102 | SYR4 | 2012–2019 |
| Dibromochloromethane | 9.083 µg/L No EPA limit set
worst single sample: 9.93 µg/L | 68/110 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 3.82 µg/L No EPA limit set
worst single sample: 5.2 µg/L | 55/102 | SYR4 | 2012–2019 |
| Nitrate | 6740 µg/L 67% of the EPA limit 10000 µg/L
worst single sample: 6860 µg/L | 50/50 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 10.625 µg/L No EPA limit set
worst single sample: 16.1 µg/L | 36/102 | SYR4 | 2012–2019 |
| Lead | 4.028 µg/L 27% of the EPA limit 15 µg/L
worst single sample: 4.3 µg/L | 18/92 | SYR4 | 2013–2017 |
| Lead | 0.00071 mg/L 4.7% of the EPA limit 0.0150 mg/L | 16/16 | LCR | 2025 |
| Nitrate-Nitrite | 6776 µg/L 68% of the EPA limit 10000 µg/L
worst single sample: 6860 µg/L | 15/15 | SYR4 | 2012–2019 |
| Bromodichloromethane | 1.7465 µg/L No EPA limit set
worst single sample: 1.85 µg/L | 10/110 | SYR4 | 2012–2019 |
| Arsenic | 15.15 µg/L 152% of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 15.2 µg/L | 6/6 | SYR4 | 2015–2018 |
| Fluoride | 725.7 µg/L 18% of the EPA limit 4000 µg/L
worst single sample: 762 µg/L | 4/4 | SYR4 | 2012–2018 |
| Barium | 31.1 µg/L 1.6% of the EPA limit 2000 µg/L
worst single sample: 33 µg/L | 3/3 | SYR4 | 2015–2018 |
| Chromium | 7.14 µg/L 7.1% of the EPA limit 100 µg/L
worst single sample: 7.7 µg/L | 3/3 | SYR4 | 2015–2018 |
| Combined Uranium | 4.43 µg/L 15% of the EPA limit 30 µg/L
worst single sample: 4.5 µg/L | 2/2 | SYR4 | 2014–2015 |
| Gross Alpha, Excl. Radon And U | 3.95 pCi/L 26% of the EPA limit 15 pCi/L
worst single sample: 4 pCi/L | 2/2 | SYR4 | 2014–2015 |
| Gross Beta Particle Activity | 6.435 pCi/L No EPA limit set
worst single sample: 6.5 pCi/L | 2/2 | SYR4 | 2014–2015 |
| Monobromoacetic Acid | 1.1 µg/L No EPA limit set | 2/102 | SYR4 | 2012–2019 |
| Selenium | 9.7 µg/L 19% of the EPA limit 50 µg/L
worst single sample: 10 µg/L | 2/3 | SYR4 | 2015–2018 |
| Lithium | 81.5 µg/L No EPA limit set | 2/2 | UCMR-5 | 2024 |
| Dichloroacetic Acid | 2.1 µg/L No EPA limit set | 1/102 | SYR4 | 2012–2019 |
86 contaminants tested, none detected
Utility contact
Frequently asked questions about Horizon Regional Mud
Is Horizon Regional Mud tap water safe to drink?
EPA monitoring detected 23 contaminants in Horizon Regional Mud'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 Horizon Regional Mud's water?
EPA monitoring detected Bromoform, TTHM, Copper, Total Haloacetic Acids (HAA5), Dibromochloromethane, and others. The full list with the level and data source for each is above.
How many people does Horizon Regional Mud serve?
Horizon Regional Mud reports serving 31,542 people in Texas, per its EPA record.
Has Horizon Regional Mud had any water quality violations?
The EPA has 22 violations on file for Horizon Regional Mud, of which 4 are health-based (a contaminant limit or required treatment was breached) and 1 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.