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 | 2024-10-01 |
| MON | Monitoring | Resolved | 2024-09-01 → 2024-09-30 |
| MON | Monitoring | Resolved | 2024-09-01 → 2024-09-30 |
| Other | Monitoring | Resolved | 2024-07-01 |
| Other | Monitoring | Resolved | 2023-07-01 |
| MR | Monitoring | Resolved | 2023-01-01 → 2023-03-31 |
| MR | Monitoring | Resolved | 2023-01-01 → 2023-03-31 |
| MON | Monitoring | Resolved | 2020-05-01 → 2020-05-31 |
| MON | Monitoring | Resolved | 2020-04-01 → 2020-04-30 |
| MR | Monitoring | Resolved | 2019-07-01 → 2019-09-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 40.65 µg/L 51% of the EPA limit 80 µg/L
worst single sample: 70.5 µg/L | 71/71 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 53.95 µg/L 90% of the EPA limit 60 µg/L
worst single sample: 69 µg/L | 71/71 | SYR4 | 2012–2019 |
| Copper | 364.45 µg/L 28% of the EPA limit 1300 µg/L
worst single sample: 500 µg/L | 40/40 | SYR4 | 2014–2017 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 23/23 | LCR | 2025 |
| Nitrate | 600 µg/L 6% of the EPA limit 10000 µg/L | 4/18 | SYR4 | 2012–2019 |
| Arsenic | 4.648 µg/L 46% of the EPA limit 10 µg/L
worst single sample: 4.68 µg/L | 2/9 | SYR4 | 2012–2019 |
| Barium | 173.05 µg/L 8.7% of the EPA limit 2000 µg/L
worst single sample: 176 µg/L | 2/2 | SYR4 | 2013–2017 |
| Lead | 1.798 µg/L 12% of the EPA limit 15 µg/L
worst single sample: 1.83 µg/L | 2/40 | SYR4 | 2014–2017 |
| Nitrate-Nitrite | 232.3 µg/L 2.3% of the EPA limit 10000 µg/L
worst single sample: 234 µg/L | 2/2 | SYR4 | 2013–2017 |
| Chromium | 4.39 µg/L 4.4% of the EPA limit 100 µg/L | 1/2 | SYR4 | 2013–2017 |
| Fluoride | 331 µg/L 8.3% of the EPA limit 4000 µg/L | 1/2 | SYR4 | 2013–2017 |
| Nitrite | 200 µg/L 20% of the EPA limit 1000 µg/L | 1/2 | SYR4 | 2013–2017 |
| Selenium | 1.15 µg/L 2.3% of the EPA limit 50 µg/L | 1/1 | SYR4 | 2013 |
89 contaminants tested, none detected
Utility contact
Frequently asked questions about Baker City
Is Baker City tap water safe to drink?
EPA monitoring detected 13 contaminants in Baker City'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 Baker City's water?
EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Copper, Lead, Nitrate, and others. The full list with the level and data source for each is above.
How many people does Baker City serve?
Baker City reports serving 10,349 people in Oregon, per its EPA record.
Has Baker City had any water quality violations?
The EPA has 163 violations on file for Baker City, 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.