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 | 2010-02-01 → 2010-02-28 |
| MCL | Health-based | Resolved | 2010-02-01 → 2010-02-28 |
| MCL | Health-based | Resolved | 2010-02-01 → 2010-02-28 |
| MCL | Health-based | Resolved | 2010-02-01 → 2010-02-28 |
| MCL | Health-based | Resolved | 2010-02-01 → 2010-02-28 |
| MCL | Health-based | Resolved | 2010-02-01 → 2010-02-28 |
| MCL | Health-based | Resolved | 2005-06-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2005-06-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2005-06-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2005-06-01 → 2005-06-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 150 µg/L 1.5% of the EPA limit 10000 µg/L | 56/64 | SYR4 | 2012–2019 |
| Copper | 836 µg/L 64% of the EPA limit 1300 µg/L | 32/34 | SYR4 | 2015–2018 |
| Lead | 5.4 µg/L 36% of the EPA limit 15 µg/L | 22/34 | SYR4 | 2015–2018 |
| Lead | 0.0047 mg/L 31% of the EPA limit 0.0150 mg/L | 14/14 | LCR | 2026 |
| Nitrate-Nitrite | 150 µg/L 1.5% of the EPA limit 10000 µg/L | 12/12 | SYR4 | 2012–2015 |
| Barium | 284 µg/L 14% of the EPA limit 2000 µg/L | 8/8 | SYR4 | 2016–2019 |
| Fluoride | 300 µg/L 7.5% of the EPA limit 4000 µg/L | 7/12 | SYR4 | 2013–2019 |
| Lithium | 40.5 µg/L No EPA limit set | 7/8 | UCMR-5 | 2024 |
| Combined Radium (-226 And -228) | 1.5 pCi/L 30% of the EPA limit 5 pCi/L | 4/4 | SYR4 | 2015 |
| Selenium | 5 µg/L 10% of the EPA limit 50 µg/L | 4/8 | SYR4 | 2016–2019 |
| Arsenic | 2.9 µg/L 29% of the EPA limit 10 µg/L | 2/8 | SYR4 | 2016–2019 |
| Bromoform | 1.3 µg/L No EPA limit set | 2/34 | SYR4 | 2012–2019 |
| Chloroform | 0.5000 µg/L No EPA limit set | 2/34 | SYR4 | 2012–2019 |
| Dibromochloromethane | 1.8 µg/L No EPA limit set | 2/34 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon And U | 5.4 pCi/L 36% of the EPA limit 15 pCi/L | 2/4 | SYR4 | 2015 |
| Gross Beta Particle Activity | 7 pCi/L No EPA limit set | 2/4 | SYR4 | 2015 |
| Bromodichloromethane | 1.1 µg/L No EPA limit set | 1/34 | SYR4 | 2012–2019 |
| Combined Uranium | 5.4 µg/L 18% of the EPA limit 30 µg/L | 1/4 | SYR4 | 2015 |
| Dichloroacetic Acid | 1.3 µg/L No EPA limit set | 1/10 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 1.3 µg/L 2.2% of the EPA limit 60 µg/L | 1/10 | SYR4 | 2013–2019 |
| Xylenes, Total | 0.8000 µg/L 0% of the EPA limit 10000 µg/L | 1/24 | SYR4 | 2012–2019 |
88 contaminants tested, none detected
Utility contact
Frequently asked questions about Decker Hills
Is Decker Hills tap water safe to drink?
EPA monitoring detected 21 contaminants in Decker Hills'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 Decker Hills's water?
EPA monitoring detected Nitrate, Copper, Lead, Lead, Nitrate-Nitrite, and others. The full list with the level and data source for each is above.
How many people does Decker Hills serve?
Decker Hills reports serving 3,780 people in Texas, per its EPA record.
Has Decker Hills had any water quality violations?
The EPA has 38 violations on file for Decker Hills, of which 10 are health-based (a contaminant limit or required treatment was breached) and 2 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.