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 | 1994-09-01 → 1994-09-30 |
| MR | Monitoring | Resolved | 2022-01-01 → 2022-03-31 |
| MR | Monitoring | Resolved | 2022-01-01 → 2022-03-31 |
| MR | Monitoring | Archived | 2022-01-01 → 2022-03-31 |
| MR | Monitoring | Archived | 2022-01-01 → 2022-03-31 |
| MR | Monitoring | Resolved | 2022-01-01 → 2022-03-31 |
| MR | Monitoring | Resolved | 2022-01-01 → 2022-03-31 |
| MR | Monitoring | Archived | 2022-01-01 → 2022-12-31 |
| MON | Monitoring | Resolved | 2021-11-01 → 2021-11-30 |
| MON | Monitoring | Resolved | 2021-11-01 → 2021-11-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 250 µg/L 2.5% of the EPA limit 10000 µg/L | 32/56 | SYR4 | 2012–2019 |
| Lead | 0.0012 mg/L 8% of the EPA limit 0.0150 mg/L | 19/19 | LCR | 2023 |
| Gross Alpha, Excl. Radon And U | 8.4 pCi/L 56% of the EPA limit 15 pCi/L | 7/8 | SYR4 | 2016–2019 |
| Lithium | 17.3 µg/L No EPA limit set | 6/8 | UCMR-5 | 2025 |
| Nitrate-Nitrite | 250 µg/L 2.5% of the EPA limit 10000 µg/L | 5/11 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 10.2 µg/L 17% of the EPA limit 60 µg/L | 5/16 | SYR4 | 2012–2019 |
| TTHM | 1.5 µg/L 1.9% of the EPA limit 80 µg/L | 3/16 | SYR4 | 2012–2019 |
| Barium | 69 µg/L 3.5% of the EPA limit 2000 µg/L | 2/11 | SYR4 | 2013–2019 |
| Chloroform | 1.6 µg/L No EPA limit set | 1/13 | SYR4 | 2013–2019 |
| Combined Radium (-226 And -228) | 0.4000 pCi/L 8% of the EPA limit 5 pCi/L | 1/1 | SYR4 | 2016 |
| Gross Beta Particle Activity | 10.3 pCi/L No EPA limit set | 1/1 | SYR4 | 2016 |
95 contaminants tested, none detected
Utility contact
Frequently asked questions about North Dallas County Water Authority
Is North Dallas County Water Authority tap water safe to drink?
EPA monitoring detected 11 contaminants in North Dallas County Water Authority'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 North Dallas County Water Authority's water?
EPA monitoring detected Nitrate, Lead, Gross Alpha, Excl. Radon And U, Lithium, Nitrate-Nitrite, and others. The full list with the level and data source for each is above.
How many people does North Dallas County Water Authority serve?
North Dallas County Water Authority reports serving 8,838 people in Alabama, per its EPA record.
Has North Dallas County Water Authority had any water quality violations?
The EPA has 66 violations on file for North Dallas County Water Authority, of which 1 is 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.