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 | 2011-01-01 → 2011-01-31 |
| MCL | Health-based | Resolved | 2011-01-01 → 2011-01-31 |
| MCL | Health-based | Resolved | 2011-01-01 → 2011-01-31 |
| MCL | Health-based | Resolved | 2011-01-01 → 2011-01-31 |
| MCL | Health-based | Resolved | 2005-06-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2005-06-01 → 2005-06-30 |
| MR | Monitoring | Resolved | 2024-10-01 → 2024-12-31 |
| MON | Monitoring | Resolved | 2021-04-01 → 2021-04-30 |
| MR | Monitoring | Resolved | 2017-08-05 |
| MR | Monitoring | Resolved | 2008-01-01 → 2008-12-31 |
PFAS detected
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHXS | 0.0039 µg/L | 3/17 | 2025 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 2080 µg/L 21% of the EPA limit 10000 µg/L
worst single sample: 2860 µg/L | 92/288 | SYR4 | 2012–2019 |
| Trichloroethylene | 2 µg/L 40% of the EPA limit 5 µg/L
worst single sample: 2.3 µg/L | 81/142 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 1.49 µg/L 30% of the EPA limit 5 µg/L
worst single sample: 1.8 µg/L | 63/142 | SYR4 | 2012–2019 |
| Copper | 121.4 µg/L 9.3% of the EPA limit 1300 µg/L
worst single sample: 196 µg/L | 49/60 | SYR4 | 2014–2017 |
| Fluoride | 306.6 µg/L 7.7% of the EPA limit 4000 µg/L
worst single sample: 312 µg/L | 22/24 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 20/20 | LCR | 2023 |
| Nitrate-Nitrite | 1601 µg/L 16% of the EPA limit 10000 µg/L
worst single sample: 1880 µg/L | 7/23 | SYR4 | 2012–2019 |
| Arsenic | 3.955 µg/L 40% of the EPA limit 10 µg/L
worst single sample: 4 µg/L | 4/23 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 1.88 pCi/L 38% of the EPA limit 5 pCi/L
worst single sample: 2 pCi/L | 4/24 | SYR4 | 2012–2016 |
| Gross Alpha, Excl. Radon And U | 3.391 pCi/L 23% of the EPA limit 15 pCi/L
worst single sample: 3.4 pCi/L | 3/20 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 14 µg/L 233% of the EPA limit, at the 95th percentile of samples — 6 µg/L | 1/97 | SYR4 | 2012–2019 |
| Diquat | 0.7000 µg/L 3.5% of the EPA limit 20 µg/L | 1/100 | SYR4 | 2012–2019 |
| Lead | 5 µg/L 33% of the EPA limit 15 µg/L | 1/60 | SYR4 | 2014–2017 |
| Nitrite | 80 µg/L 8% of the EPA limit 1000 µg/L | 1/23 | SYR4 | 2012–2019 |
| Toluene | 1.1 µg/L 0.1% of the EPA limit 1000 µg/L | 1/142 | SYR4 | 2012–2019 |
84 contaminants tested, none detected
Utility contact
Frequently asked questions about Keizer, City of
Is Keizer, City of tap water safe to drink?
EPA monitoring detected 16 contaminants in Keizer, City of'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 Keizer, City of's water?
EPA monitoring detected Nitrate, Trichloroethylene, Tetrachloroethylene, Copper, Fluoride, and others. The full list with the level and data source for each is above.
How many people does Keizer, City of serve?
Keizer, City of reports serving 38,585 people in Oregon, per its EPA record.
Has Keizer, City of had any water quality violations?
The EPA has 52 violations on file for Keizer, City of, of which 6 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.