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 |
|---|---|---|---|
| Other | Monitoring | Resolved | 2004-05-01 |
| MR | Monitoring | Resolved | 2004-01-01 → 2004-01-31 |
| MR | Monitoring | Resolved | 2004-01-01 → 2004-01-31 |
| MR | Monitoring | Resolved | 2004-01-01 → 2004-01-31 |
| MR | Monitoring | Resolved | 2004-01-01 → 2004-01-31 |
PFAS detected
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 29 µg/L No EPA limit set | 71/71 | SYR4 | 2012–2019 |
| Chloroform | 54 µg/L No EPA limit set | 71/71 | SYR4 | 2012–2019 |
| Dibromochloromethane | 10.8 µg/L No EPA limit set | 69/71 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 45 µg/L No EPA limit set | 59/59 | SYR4 | 2012–2019 |
| TTHM | 85.8 µg/L 107% of the EPA limit, in the worst sample — 80 µg/L | 59/59 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 63.8 µg/L 106% of the EPA limit, in the worst sample — 60 µg/L | 59/59 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 14 µg/L No EPA limit set | 58/59 | SYR4 | 2012–2019 |
| Copper | 420 µg/L 32% of the EPA limit 1300 µg/L | 57/62 | SYR4 | 2013–2019 |
| Dibromoacetic Acid | 7.5 µg/L No EPA limit set | 51/59 | SYR4 | 2012–2019 |
| Nitrate | 940 µg/L 9.4% of the EPA limit 10000 µg/L | 32/32 | SYR4 | 2012–2019 |
| Bromoform | 3.9 µg/L No EPA limit set | 21/71 | SYR4 | 2012–2019 |
| Lead | 28 µg/L 187% of the EPA limit, in the worst sample — 15 µg/L | 12/62 | SYR4 | 2013–2019 |
| Atrazine | 0.2800 µg/L 9.3% of the EPA limit 3 µg/L | 8/13 | SYR4 | 2016–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 7/7 | LCR | 2025 |
| Fluoride | 510 µg/L 13% of the EPA limit 4000 µg/L | 6/6 | SYR4 | 2012–2019 |
| Simazine | 0.1900 µg/L 4.8% of the EPA limit 4 µg/L | 6/13 | SYR4 | 2016–2019 |
| Monochloroacetic Acid | 6.7 µg/L No EPA limit set | 5/59 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 960 µg/L 9.6% of the EPA limit 10000 µg/L | 5/5 | SYR4 | 2012–2015 |
| Lithium | 16.6 µg/L No EPA limit set | 5/12 | UCMR-5 | 2025 |
| Barium | 161 µg/L 8.1% of the EPA limit 2000 µg/L | 4/4 | SYR4 | 2015–2018 |
| Gross Beta Particle Activity | 6.1 pCi/L No EPA limit set | 2/2 | SYR4 | 2015 |
| Nitrite | 30 µg/L 3% of the EPA limit 1000 µg/L | 2/5 | SYR4 | 2012–2015 |
| Arsenic | 2.2 µg/L 22% of the EPA limit 10 µg/L | 1/4 | SYR4 | 2015–2018 |
| Di(2-ethylhexyl) Phthalate | 0.6700 µg/L 11% of the EPA limit 6 µg/L | 1/13 | SYR4 | 2016–2019 |
81 contaminants tested, none detected
Utility contact
Frequently asked questions about Grand Mission Mud 1
Is Grand Mission Mud 1 tap water safe to drink?
EPA monitoring detected 27 contaminants in Grand Mission Mud 1'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 Grand Mission Mud 1'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 Grand Mission Mud 1 serve?
Grand Mission Mud 1 reports serving 6,663 people in Texas, per its EPA record.
Has Grand Mission Mud 1 had any water quality violations?
The EPA has 5 violations on file for Grand Mission Mud 1, of which 0 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.