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 | 2024-10-17 |
| TT | Health-based | Resolved | 2024-10-17 |
| MCL | Health-based | Resolved | 2001-01-01 → 2007-08-14 |
| MCL | Health-based | Resolved | 2001-01-01 → 2007-08-14 |
| MCL | Health-based | Resolved | 2001-01-01 → 2007-08-14 |
| MCL | Health-based | Resolved | 2001-01-01 → 2007-08-14 |
| MCL | Health-based | Resolved | 2001-01-01 → 2007-08-14 |
| MCL | Health-based | Resolved | 2001-01-01 → 2007-08-14 |
| MCL | Health-based | Resolved | 2001-01-01 → 2007-08-14 |
| MCL | Health-based | Resolved | 2001-01-01 → 2007-08-14 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 18 µg/L No EPA limit set
worst single sample: 19 µg/L | 100/100 | SYR4 | 2013–2019 |
| Chloroform | 45.1 µg/L No EPA limit set
worst single sample: 54 µg/L | 100/100 | SYR4 | 2013–2019 |
| Dibromochloromethane | 7.305 µg/L No EPA limit set
worst single sample: 9.1 µg/L | 100/100 | SYR4 | 2013–2019 |
| TTHM | 67.9025 µg/L 85% of the EPA limit 80 µg/L
worst single sample: 78.3 µg/L | 100/100 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 30.726 µg/L 51% of the EPA limit 60 µg/L
worst single sample: 37.27 µg/L | 100/100 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 16.1 µg/L No EPA limit set
worst single sample: 21 µg/L | 100/100 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 14.1 µg/L No EPA limit set
worst single sample: 17 µg/L | 99/100 | SYR4 | 2013–2019 |
| Dibromoacetic Acid | 1.4 µg/L No EPA limit set
worst single sample: 2.1 µg/L | 80/100 | SYR4 | 2013–2019 |
| Copper | 320.5 µg/L 25% of the EPA limit 1300 µg/L
worst single sample: 370 µg/L | 60/60 | SYR4 | 2014–2017 |
| Lead | 3.83 µg/L 26% of the EPA limit 15 µg/L
worst single sample: 9.1 µg/L | 55/60 | SYR4 | 2014–2017 |
| Monobromoacetic Acid | 1.045 µg/L No EPA limit set
worst single sample: 1.4 µg/L | 32/100 | SYR4 | 2013–2019 |
| Lead | 0.0059 mg/L 39% of the EPA limit 0.0150 mg/L | 17/17 | LCR | 2023 |
| Bromoform | 0.8150 µg/L No EPA limit set
worst single sample: 0.8300 µg/L | 4/100 | SYR4 | 2013–2019 |
| Monochloroacetic Acid | 1.4 µg/L No EPA limit set | 1/100 | SYR4 | 2013–2019 |
Utility contact
Frequently asked questions about Allouez Waterworks
Is Allouez Waterworks tap water safe to drink?
EPA monitoring detected 14 contaminants in Allouez Waterworks'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 Allouez Waterworks's water?
EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.
How many people does Allouez Waterworks serve?
Allouez Waterworks reports serving 13,923 people in Wisconsin, per its EPA record.
Has Allouez Waterworks had any water quality violations?
The EPA has 117 violations on file for Allouez Waterworks, of which 106 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.