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 |
|---|---|---|---|
| TT | Health-based | Unaddressed | 2024-01-01 |
| TT | Health-based | Unaddressed | 2024-01-01 |
| TT | Health-based | Unaddressed | 2024-01-01 |
| TT | Health-based | Unaddressed | 2024-01-01 |
| TT | Health-based | Unaddressed | 2024-01-01 |
| TT | Health-based | Unaddressed | 2024-01-01 |
| TT | Health-based | Unaddressed | 2024-01-01 |
| TT | Health-based | Unaddressed | 2024-01-01 |
| TT | Health-based | Unaddressed | 2024-01-01 |
| MCL | Health-based | Resolved | 2014-08-01 → 2014-08-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 225.65 µg/L 17% of the EPA limit 1300 µg/L
worst single sample: 516 µg/L | 30/30 | SYR4 | 2013–2019 |
| TTHM | 30.985 µg/L 39% of the EPA limit 80 µg/L
worst single sample: 34.3 µg/L | 18/21 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 6.3585 µg/L 11% of the EPA limit 60 µg/L
worst single sample: 7.2 µg/L | 18/19 | SYR4 | 2013–2019 |
| Lead | 17.22 µg/L 115% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 26.9 µg/L | 17/30 | SYR4 | 2013–2019 |
| Bromodichloromethane | 8.28 µg/L No EPA limit set
worst single sample: 10.8 µg/L | 15/18 | SYR4 | 2013–2019 |
| Bromoform | 5.014 µg/L No EPA limit set
worst single sample: 6.19 µg/L | 15/18 | SYR4 | 2013–2019 |
| Dibromochloromethane | 11.29 µg/L No EPA limit set
worst single sample: 12.9 µg/L | 15/18 | SYR4 | 2013–2019 |
| Dibromoacetic Acid | 3.6305 µg/L No EPA limit set
worst single sample: 3.65 µg/L | 14/14 | SYR4 | 2013–2014 |
| Chloroform | 11.6055 µg/L No EPA limit set
worst single sample: 14.9 µg/L | 12/18 | SYR4 | 2013–2019 |
| Lead | 0.00077 mg/L 5.2% of the EPA limit 0.0150 mg/L | 10/10 | LCR | 2022 |
| Nitrate-Nitrite | 507.35 µg/L 5.1% of the EPA limit 10000 µg/L
worst single sample: 514 µg/L | 8/12 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 1.017 µg/L No EPA limit set
worst single sample: 1.02 µg/L | 7/14 | SYR4 | 2013–2014 |
| Dichloroacetic Acid | 3.0325 µg/L No EPA limit set
worst single sample: 3.2 µg/L | 6/14 | SYR4 | 2013–2014 |
| Nitrate | 494 µg/L 4.9% of the EPA limit 10000 µg/L | 4/4 | SYR4 | 2013–2014 |
| Barium | 110.3 µg/L 5.5% of the EPA limit 2000 µg/L
worst single sample: 111 µg/L | 2/2 | SYR4 | 2013–2016 |
| Chromium | 4.5475 µg/L 4.5% of the EPA limit 100 µg/L
worst single sample: 4.68 µg/L | 2/2 | SYR4 | 2013–2016 |
| Fluoride | 817.3 µg/L 20% of the EPA limit 4000 µg/L
worst single sample: 819 µg/L | 2/2 | SYR4 | 2013–2016 |
| Antimony, Total | 1.36 µg/L 23% of the EPA limit 6 µg/L | 1/2 | SYR4 | 2013–2016 |
| Asbestos | 0.1600 MFL 2.3% of the EPA limit 7 MFL | 1/3 | SYR4 | 2013–2018 |
54 contaminants tested, none detected
Utility contact
Frequently asked questions about Omaha Tribe
Is Omaha Tribe tap water safe to drink?
EPA monitoring detected 19 contaminants in Omaha Tribe'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 Omaha Tribe's water?
EPA monitoring detected Copper, TTHM, Total Haloacetic Acids (HAA5), Lead, Bromodichloromethane, and others. The full list with the level and data source for each is above.
How many people does Omaha Tribe serve?
Omaha Tribe reports serving 1,800 people in Nebraska, per its EPA record.
Has Omaha Tribe had any water quality violations?
The EPA has 140 violations on file for Omaha Tribe, of which 22 are health-based (a contaminant limit or required treatment was breached) and 9 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.