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 | 2004-07-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2004-07-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2004-07-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2004-07-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2004-07-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2004-07-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2004-07-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2004-07-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2004-07-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2004-07-01 → 2005-06-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 817 µg/L 63% of the EPA limit 1300 µg/L | 227/238 | SYR4 | 2012–2018 |
| Lead | 57 µg/L 380% of the EPA limit, in the worst sample — 15 µg/L | 40/238 | SYR4 | 2012–2018 |
| Nitrate | 70 µg/L 0.7% of the EPA limit 10000 µg/L | 18/22 | SYR4 | 2012–2019 |
| Dibromochloromethane | 3.5 µg/L No EPA limit set | 16/23 | SYR4 | 2013–2019 |
| Bromoform | 2.8 µg/L No EPA limit set | 13/23 | SYR4 | 2013–2019 |
| Lead | 0.00050 mg/L 3.3% of the EPA limit 0.0150 mg/L | 13/13 | LCR | 2024 |
| TTHM | 8.2 µg/L 10% of the EPA limit 80 µg/L | 8/10 | SYR4 | 2014–2019 |
| Bromodichloromethane | 1.9 µg/L No EPA limit set | 6/23 | SYR4 | 2013–2019 |
| Arsenic | 7.6 µg/L 76% of the EPA limit 10 µg/L | 4/4 | SYR4 | 2012–2019 |
| Barium | 177 µg/L 8.9% of the EPA limit 2000 µg/L | 4/4 | SYR4 | 2012–2019 |
| Fluoride | 1620 µg/L 41% of the EPA limit 4000 µg/L | 4/4 | SYR4 | 2012–2018 |
| Lithium | 24.5 µg/L No EPA limit set | 4/4 | UCMR-5 | 2024 |
| Gross Alpha, Excl. Radon And U | 10 pCi/L 67% of the EPA limit 15 pCi/L | 3/3 | SYR4 | 2013–2019 |
| Nitrate-Nitrite | 70 µg/L 0.7% of the EPA limit 10000 µg/L | 3/3 | SYR4 | 2013–2019 |
| Chloroform | 1.2 µg/L No EPA limit set | 2/23 | SYR4 | 2013–2019 |
| Carbon Tetrachloride | 0.9000 µg/L 18% of the EPA limit 5 µg/L | 1/13 | SYR4 | 2013–2019 |
| Combined Radium (-226 And -228) | 2.03 pCi/L 41% of the EPA limit 5 pCi/L | 1/1 | SYR4 | 2019 |
| Combined Uranium | 4.9 µg/L 16% of the EPA limit 30 µg/L | 1/3 | SYR4 | 2013–2019 |
| Gross Beta Particle Activity | 5.4 pCi/L No EPA limit set | 1/5 | SYR4 | 2012–2019 |
90 contaminants tested, none detected
Utility contact
Frequently asked questions about Harris County Mud 167
Is Harris County Mud 167 tap water safe to drink?
EPA monitoring detected 19 contaminants in Harris County Mud 167'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 Harris County Mud 167's water?
EPA monitoring detected Copper, Lead, Nitrate, Dibromochloromethane, Bromoform, and others. The full list with the level and data source for each is above.
How many people does Harris County Mud 167 serve?
Harris County Mud 167 reports serving 16,761 people in Texas, per its EPA record.
Has Harris County Mud 167 had any water quality violations?
The EPA has 89 violations on file for Harris County Mud 167, of which 61 are health-based (a contaminant limit or required treatment was breached) and 3 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.