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 | 2026-01-01 → 2026-03-31 |
| MCL | Health-based | Archived | 2026-01-01 → 2026-03-31 |
| MCL | Health-based | Archived | 2026-01-01 → 2026-03-31 |
| MCL | Health-based | Resolved | 2017-07-01 → 2017-09-30 |
| MCL | Health-based | Resolved | 2017-07-01 → 2017-09-30 |
| MCL | Health-based | Resolved | 2017-07-01 → 2017-09-30 |
| MCL | Health-based | Resolved | 2017-07-01 → 2017-09-30 |
| MCL | Health-based | Resolved | 2012-05-01 → 2012-05-31 |
| MCL | Health-based | Resolved | 2012-05-01 → 2012-05-31 |
| MCL | Health-based | Resolved | 2012-05-01 → 2012-05-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate-Nitrite | 11497 µg/L 115% of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 17600 µg/L | 62/62 | SYR4 | 2012–2019 |
| Copper | 187.8 µg/L 14% of the EPA limit 1300 µg/L
worst single sample: 380 µg/L | 44/50 | SYR4 | 2012–2019 |
| Lead | 0.0216 mg/L 144% above the EPA limit of 0.0150 mg/L | 18/18 | LCR | 2026 |
| Bromodichloromethane | 4.38 µg/L No EPA limit set
worst single sample: 4.7 µg/L | 9/9 | SYR4 | 2012–2019 |
| Dibromochloromethane | 4.8 µg/L No EPA limit set
worst single sample: 5.2 µg/L | 9/9 | SYR4 | 2012–2019 |
| Bromoform | 2.355 µg/L No EPA limit set
worst single sample: 2.6 µg/L | 8/9 | SYR4 | 2012–2019 |
| Chloroform | 2.865 µg/L No EPA limit set
worst single sample: 2.9 µg/L | 8/9 | SYR4 | 2012–2019 |
| TTHM | 14.28 µg/L 18% of the EPA limit 80 µg/L
worst single sample: 15.4 µg/L | 8/8 | SYR4 | 2012–2019 |
| Lead | 12.72 µg/L 85% of the EPA limit 15 µg/L
worst single sample: 13.4 µg/L | 3/50 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 1.38 µg/L 2.3% of the EPA limit 60 µg/L
worst single sample: 1.4 µg/L | 2/8 | SYR4 | 2012–2019 |
| Barium | 42.1 µg/L 2.1% of the EPA limit 2000 µg/L | 1/1 | SYR4 | 2017 |
| Combined Uranium | 1.7 µg/L 5.7% of the EPA limit 30 µg/L | 1/1 | SYR4 | 2018 |
| Dibromoacetic Acid | 1 µg/L No EPA limit set | 1/8 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 1.4 µg/L No EPA limit set | 1/8 | SYR4 | 2012–2019 |
57 contaminants tested, none detected
Utility contact
Frequently asked questions about Waynoka
Is Waynoka tap water safe to drink?
EPA monitoring detected 14 contaminants in Waynoka'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 Waynoka's water?
EPA monitoring detected Nitrate-Nitrite, Copper, Lead, Bromodichloromethane, Dibromochloromethane, and others. The full list with the level and data source for each is above.
How many people does Waynoka serve?
Waynoka reports serving 993 people in Oklahoma, per its EPA record.
Has Waynoka had any water quality violations?
The EPA has 162 violations on file for Waynoka, of which 84 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.