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 | Archived | 1984-11-07 → 1985-11-06 |
| MCL | Health-based | Archived | 1984-11-07 → 1985-11-06 |
| Other | Monitoring | Unaddressed | 2025-07-01 |
| MR | Monitoring | Resolved | 2006-05-01 → 2006-05-31 |
| MR | Monitoring | Resolved | 2006-05-01 → 2006-05-31 |
| MR | Monitoring | Resolved | 2006-05-01 → 2006-05-31 |
| MR | Monitoring | Resolved | 2006-05-01 → 2006-05-31 |
| MR | Monitoring | Archived | 1993-05-01 → 1993-05-31 |
| Other | Monitoring | Archived | 1993-05-01 → 1993-05-31 |
PFAS detected
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 11.365 µg/L No EPA limit set
worst single sample: 15 µg/L | 68/68 | SYR4 | 2012–2019 |
| Chloroform | 26.755 µg/L No EPA limit set
worst single sample: 35.8 µg/L | 68/68 | SYR4 | 2012–2019 |
| Dibromochloromethane | 6.135 µg/L No EPA limit set
worst single sample: 8.1 µg/L | 64/68 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 30.53 µg/L No EPA limit set
worst single sample: 40.1 µg/L | 62/62 | SYR4 | 2012–2019 |
| TTHM | 40.535 µg/L 51% of the EPA limit 80 µg/L
worst single sample: 50.2 µg/L | 62/62 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 41.94 µg/L 70% of the EPA limit 60 µg/L
worst single sample: 57.4 µg/L | 62/62 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 9.76 µg/L No EPA limit set
worst single sample: 14 µg/L | 62/62 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 3.44 µg/L No EPA limit set
worst single sample: 4.8 µg/L | 53/62 | SYR4 | 2012–2019 |
| Copper | 158 µg/L 12% of the EPA limit 1300 µg/L
worst single sample: 220 µg/L | 43/62 | SYR4 | 2013–2019 |
| Lead | 8.53 µg/L 57% of the EPA limit 15 µg/L
worst single sample: 8.74 µg/L | 21/62 | SYR4 | 2013–2019 |
| Nitrate | 790 µg/L 7.9% of the EPA limit 10000 µg/L | 16/16 | SYR4 | 2012–2019 |
| Lead | 0.0019 mg/L 13% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2025 |
| Bromoform | 2.87 µg/L No EPA limit set
worst single sample: 3 µg/L | 14/68 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 6.525 µg/L No EPA limit set
worst single sample: 6.8 µg/L | 12/62 | SYR4 | 2012–2019 |
| Atrazine | 0.3750 µg/L 13% of the EPA limit 3 µg/L
worst single sample: 0.4700 µg/L | 11/12 | SYR4 | 2014–2019 |
| Simazine | 0.1785 µg/L 4.5% of the EPA limit 4 µg/L
worst single sample: 0.1800 µg/L | 4/12 | SYR4 | 2014–2019 |
| Nitrate-Nitrite | 766 µg/L 7.7% of the EPA limit 10000 µg/L
worst single sample: 790 µg/L | 3/3 | SYR4 | 2012–2015 |
| Barium | 84.925 µg/L 4.2% of the EPA limit 2000 µg/L
worst single sample: 86.8 µg/L | 2/2 | SYR4 | 2014–2017 |
| Fluoride | 344 µg/L 8.6% of the EPA limit 4000 µg/L
worst single sample: 350 µg/L | 2/2 | SYR4 | 2014–2017 |
| Cyanide | 160 µg/L 80% of the EPA limit 200 µg/L | 1/2 | SYR4 | 2014–2017 |
| Gross Alpha, Excl. Radon And U | 2.6 pCi/L 17% of the EPA limit 15 pCi/L | 1/2 | SYR4 | 2014–2017 |
| Gross Beta Particle Activity | 5.3 pCi/L No EPA limit set | 1/2 | SYR4 | 2014–2017 |
81 contaminants tested, none detected
Utility contact
Frequently asked questions about Harris County Mud 70
Is Harris County Mud 70 tap water safe to drink?
EPA monitoring detected 27 contaminants in Harris County Mud 70'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 70's water?
EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, Dichloroacetic Acid, TTHM, and others. The full list with the level and data source for each is above.
How many people does Harris County Mud 70 serve?
Harris County Mud 70 reports serving 5,763 people in Texas, per its EPA record.
Has Harris County Mud 70 had any water quality violations?
The EPA has 9 violations on file for Harris County Mud 70, of which 2 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.