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 |
|---|---|---|---|
| MR | Monitoring | Resolved | 2024-10-01 → 2024-12-31 |
| MR | Monitoring | Resolved | 2024-10-01 → 2024-12-31 |
| MR | Monitoring | Resolved | 2024-10-01 → 2024-12-31 |
| MR | Monitoring | Resolved | 2024-10-01 → 2024-12-31 |
| MR | Monitoring | Resolved | 2024-10-01 → 2024-12-31 |
| MR | Monitoring | Resolved | 2024-10-01 → 2024-12-31 |
| MR | Monitoring | Resolved | 2020-10-01 |
| MR | Monitoring | Resolved | 2020-10-01 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 25.88 µg/L 2% of the EPA limit 1300 µg/L
worst single sample: 29.1 µg/L | 5/5 | SYR4 | 2019 |
| Barium | 60.47 µg/L 3% of the EPA limit 2000 µg/L
worst single sample: 60.6 µg/L | 3/3 | SYR4 | 2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 3/3 | LCR | 2023 |
| Nitrate-Nitrite | 140 µg/L 1.4% of the EPA limit 10000 µg/L | 2/6 | SYR4 | 2019 |
| Gross Alpha, Excl. Radon And U | 5.4 pCi/L 36% of the EPA limit 15 pCi/L | 1/6 | SYR4 | 2019 |
62 contaminants tested, none detected
Utility contact
Frequently asked questions about Willow Brook
Is Willow Brook tap water safe to drink?
EPA monitoring detected 5 contaminants in Willow Brook'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 Willow Brook's water?
EPA monitoring detected Copper, Barium, Lead, Nitrate-Nitrite, Gross Alpha, Excl. Radon And U. The full list with the level and data source for each is above.
How many people does Willow Brook serve?
Willow Brook reports serving 60 people in Minnesota, per its EPA record.
Has Willow Brook had any water quality violations?
The EPA has 8 violations on file for Willow Brook, 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.