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 | Resolved | 2002-01-01 |
| TT | Health-based | Resolved | 2002-01-01 |
| TT | Health-based | Resolved | 2002-01-01 |
| TT | Health-based | Resolved | 2001-01-01 |
| TT | Health-based | Resolved | 2001-01-01 |
| TT | Health-based | Resolved | 2001-01-01 |
| TT | Health-based | Resolved | 1999-07-01 |
| TT | Health-based | Resolved | 1999-07-01 |
| TT | Health-based | Resolved | 1999-07-01 |
| MCL | Health-based | Resolved | 1998-12-01 → 1998-12-31 |
PFAS detected
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 3100 µg/L 31% of the EPA limit 10000 µg/L
worst single sample: 10300 µg/L | 50/90 | SYR4 | 2012–2019 |
| Lead | 0.0026 mg/L 17% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2025 |
| Copper | 447.6 µg/L 34% of the EPA limit 1300 µg/L
worst single sample: 540 µg/L | 13/15 | SYR4 | 2013–2019 |
| Arsenic | 9.52 µg/L 95% of the EPA limit 10 µg/L
worst single sample: 10 µg/L | 9/10 | SYR4 | 2013–2019 |
| Nitrate-Nitrite | 2989 µg/L 30% of the EPA limit 10000 µg/L
worst single sample: 3100 µg/L | 4/4 | SYR4 | 2013–2019 |
| Barium | 18.38 µg/L 0.9% of the EPA limit 2000 µg/L
worst single sample: 19.6 µg/L | 3/4 | SYR4 | 2013–2019 |
| Lead | 2.98 µg/L 20% of the EPA limit 15 µg/L
worst single sample: 3 µg/L | 3/18 | SYR4 | 2013–2019 |
| Chromium | 1.2 µg/L 1.2% of the EPA limit 100 µg/L | 1/4 | SYR4 | 2013–2019 |
| TTHM | 2 µg/L 2.5% of the EPA limit 80 µg/L | 1/8 | SYR4 | 2013–2019 |
92 contaminants tested, none detected
Utility contact
Frequently asked questions about Marcola Water District
Is Marcola Water District tap water safe to drink?
EPA monitoring detected 11 contaminants in Marcola Water District'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 Marcola Water District's water?
EPA monitoring detected Nitrate, Lead, Copper, Arsenic, Nitrate-Nitrite, and others. The full list with the level and data source for each is above.
How many people does Marcola Water District serve?
Marcola Water District reports serving 600 people in Oregon, per its EPA record.
Has Marcola Water District had any water quality violations?
The EPA has 221 violations on file for Marcola Water District, of which 16 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.