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 | 1993-09-01 → 1993-09-30 |
| MCL | Health-based | Resolved | 1993-09-01 → 1993-09-30 |
| MCL | Health-based | Resolved | 1993-09-01 → 1993-09-30 |
| MCL | Health-based | Resolved | 1993-09-01 → 1993-09-30 |
| MCL | Health-based | Resolved | 1993-09-01 → 1993-09-30 |
| MCL | Health-based | Resolved | 1993-09-01 → 1993-09-30 |
| MCL | Health-based | Resolved | 1993-09-01 → 1993-09-30 |
| MR | Monitoring | Archived | 1992-12-01 → 1992-12-31 |
| MR | Monitoring | Archived | 1992-12-01 → 1992-12-31 |
| MR | Monitoring | Archived | 1992-12-01 → 1992-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 652.75 µg/L 50% of the EPA limit 1300 µg/L
worst single sample: 1430 µg/L | 60/60 | SYR4 | 2012–2018 |
| Lead | 3.3 µg/L 22% of the EPA limit 15 µg/L
worst single sample: 32.9 µg/L | 41/60 | SYR4 | 2012–2018 |
| Fluoride | 1200 µg/L 30% of the EPA limit 4000 µg/L | 33/33 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 1100 µg/L 11% of the EPA limit 10000 µg/L | 16/16 | SYR4 | 2012–2019 |
| Bromodichloromethane | 15.9 µg/L No EPA limit set
worst single sample: 17 µg/L | 12/13 | SYR4 | 2013–2019 |
| Chloroform | 44.3 µg/L No EPA limit set
worst single sample: 52 µg/L | 12/13 | SYR4 | 2013–2019 |
| Dibromochloromethane | 7.76 µg/L No EPA limit set
worst single sample: 8.2 µg/L | 12/13 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 12.9 µg/L No EPA limit set
worst single sample: 14 µg/L | 12/12 | SYR4 | 2013–2019 |
| Dibromoacetic Acid | 1.6 µg/L No EPA limit set | 10/12 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 10.145 µg/L No EPA limit set
worst single sample: 11 µg/L | 10/12 | SYR4 | 2013–2019 |
| Bromoform | 1.08 µg/L No EPA limit set
worst single sample: 1.1 µg/L | 5/13 | SYR4 | 2013–2019 |
| Lead | 0.0090 mg/L 60% of the EPA limit 0.0150 mg/L | 5/5 | LCR | 2024 |
| Gross Alpha, Excl. Radon And U | 3.4 pCi/L 23% of the EPA limit 15 pCi/L | 2/3 | SYR4 | 2013–2019 |
| Barium | 30.4 µg/L 1.5% of the EPA limit 2000 µg/L | 1/1 | SYR4 | 2014 |
| Monochloroacetic Acid | 2.1 µg/L No EPA limit set | 1/12 | SYR4 | 2013–2019 |
32 contaminants tested, none detected
Utility contact
Frequently asked questions about Winnebago
Is Winnebago tap water safe to drink?
EPA monitoring detected 15 contaminants in Winnebago'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 Winnebago's water?
EPA monitoring detected Copper, Lead, Fluoride, Nitrate-Nitrite, Bromodichloromethane, and others. The full list with the level and data source for each is above.
How many people does Winnebago serve?
Winnebago reports serving 1,391 people in Minnesota, per its EPA record.
Has Winnebago had any water quality violations?
The EPA has 10 violations on file for Winnebago, of which 7 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.