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 | 2007-08-01 → 2007-08-31 |
| MCL | Health-based | Resolved | 2007-08-01 → 2007-08-31 |
| MCL | Health-based | Resolved | 2007-08-01 → 2007-08-31 |
| MCL | Health-based | Resolved | 2007-08-01 → 2007-08-31 |
| MR | Monitoring | Resolved | 1992-07-01 → 1993-06-30 |
PFAS detected
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 17.3 µg/L No EPA limit set
worst single sample: 24.3 µg/L | 67/67 | SYR4 | 2012–2019 |
| Chloroform | 36.42 µg/L No EPA limit set
worst single sample: 53 µg/L | 67/67 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 32.455 µg/L No EPA limit set
worst single sample: 40 µg/L | 62/62 | SYR4 | 2012–2019 |
| TTHM | 50.465 µg/L 63% of the EPA limit 80 µg/L
worst single sample: 74.8 µg/L | 62/62 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 53.58 µg/L 89% of the EPA limit 60 µg/L
worst single sample: 59 µg/L | 62/62 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 10.09 µg/L No EPA limit set
worst single sample: 12.9 µg/L | 62/62 | SYR4 | 2012–2019 |
| Copper | 350.95 µg/L 27% of the EPA limit 1300 µg/L
worst single sample: 572 µg/L | 60/63 | SYR4 | 2013–2017 |
| Dibromochloromethane | 11.23 µg/L No EPA limit set
worst single sample: 13 µg/L | 60/67 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 4.125 µg/L No EPA limit set
worst single sample: 7.8 µg/L | 52/62 | SYR4 | 2012–2019 |
| Lead | 32.4 µg/L 216% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 56 µg/L | 34/63 | SYR4 | 2013–2017 |
| Lead | 0.0084 mg/L 56% of the EPA limit 0.0150 mg/L | 17/17 | LCR | 2025 |
| Nitrate | 710 µg/L 7.1% of the EPA limit 10000 µg/L | 16/16 | SYR4 | 2012–2019 |
| Atrazine | 0.3780 µg/L 13% of the EPA limit 3 µg/L
worst single sample: 0.4500 µg/L | 13/14 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 10.825 µg/L No EPA limit set
worst single sample: 13.3 µg/L | 10/62 | SYR4 | 2012–2019 |
| Bromoform | 3.475 µg/L No EPA limit set
worst single sample: 4 µg/L | 8/67 | SYR4 | 2012–2019 |
| Simazine | 0.1500 µg/L 3.8% of the EPA limit 4 µg/L | 7/14 | SYR4 | 2012–2019 |
| Barium | 95.91 µg/L 4.8% of the EPA limit 2000 µg/L
worst single sample: 99.4 µg/L | 3/3 | SYR4 | 2013–2019 |
| Nitrate-Nitrite | 534 µg/L 5.3% of the EPA limit 10000 µg/L
worst single sample: 560 µg/L | 3/3 | SYR4 | 2012–2015 |
| Di(2-ethylhexyl) Phthalate | 0.7270 µg/L 12% of the EPA limit 6 µg/L
worst single sample: 0.7300 µg/L | 2/14 | SYR4 | 2012–2019 |
| Fluoride | 345 µg/L 8.6% of the EPA limit 4000 µg/L
worst single sample: 350 µg/L | 2/2 | SYR4 | 2014–2017 |
| Cyanide | 150 µg/L 75% of the EPA limit 200 µg/L | 1/2 | SYR4 | 2014–2017 |
| Combined Radium (-226 And -228) | 2.6 pCi/L 52% of the EPA limit 5 pCi/L | 1/1 | SYR4 | 2014 |
| Gross Alpha, Excl. Radon And U | 2.6 pCi/L 17% of the EPA limit 15 pCi/L | 1/1 | SYR4 | 2014 |
| Gross Beta Particle Activity | 5.4 pCi/L No EPA limit set | 1/1 | SYR4 | 2014 |
| Hexachlorocyclopentadiene | 0.1300 µg/L 0.3% of the EPA limit 50 µg/L | 1/14 | SYR4 | 2012–2019 |
82 contaminants tested, none detected
Utility contact
Frequently asked questions about Harris County Mud 163
Is Harris County Mud 163 tap water safe to drink?
EPA monitoring detected 27 contaminants in Harris County Mud 163'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 163's water?
EPA monitoring detected Bromodichloromethane, Chloroform, Dichloroacetic Acid, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.
How many people does Harris County Mud 163 serve?
Harris County Mud 163 reports serving 5,487 people in Texas, per its EPA record.
Has Harris County Mud 163 had any water quality violations?
The EPA has 5 violations on file for Harris County Mud 163, of which 4 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.