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 |
| TT | Health-based | Resolved | 2024-10-17 |
| TT | Health-based | Resolved | 2024-10-17 |
| Other | Monitoring | Resolved | 2025-11-28 |
| Other | Monitoring | Resolved | 2025-11-28 |
| Other | Monitoring | Resolved | 2025-11-28 |
| Other | Monitoring | Resolved | 2025-11-28 |
| Other | Monitoring | Resolved | 2025-08-22 |
| Other | Monitoring | Resolved | 2025-08-22 |
PFAS detected
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Dichloroacetic Acid | 14.96 µg/L No EPA limit set
worst single sample: 15.2 µg/L | 13/14 | SYR4 | 2016–2019 |
| Total Haloacetic Acids (HAA5) | 30.2 µg/L 50% of the EPA limit 60 µg/L
worst single sample: 30.8 µg/L | 13/14 | SYR4 | 2016–2019 |
| Trichloroacetic Acid | 13.56 µg/L No EPA limit set
worst single sample: 13.8 µg/L | 13/14 | SYR4 | 2016–2019 |
| Bromodichloromethane | 18.26 µg/L No EPA limit set
worst single sample: 18.7 µg/L | 12/14 | SYR4 | 2016–2019 |
| Chloroform | 42.15 µg/L No EPA limit set
worst single sample: 46 µg/L | 12/14 | SYR4 | 2016–2019 |
| Dibromochloromethane | 7.3 µg/L No EPA limit set | 12/14 | SYR4 | 2016–2019 |
| TTHM | 65.945 µg/L 82% of the EPA limit 80 µg/L
worst single sample: 67.1 µg/L | 12/14 | SYR4 | 2016–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 9/9 | LCR | 2026 |
| Dibromoacetic Acid | 1.725 µg/L No EPA limit set
worst single sample: 1.8 µg/L | 6/14 | SYR4 | 2016–2019 |
| Copper | 163.8 µg/L 13% of the EPA limit 1300 µg/L
worst single sample: 168 µg/L | 5/80 | SYR4 | 2016–2019 |
| Monochloroacetic Acid | 2.2 µg/L No EPA limit set | 1/14 | SYR4 | 2016–2019 |
30 contaminants tested, none detected
Utility contact
Frequently asked questions about Willow Lake Estates Mhp
Is Willow Lake Estates Mhp tap water safe to drink?
EPA monitoring detected 14 contaminants in Willow Lake Estates Mhp'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 Lake Estates Mhp's water?
EPA monitoring detected Dichloroacetic Acid, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, Bromodichloromethane, Chloroform, and others. The full list with the level and data source for each is above.
How many people does Willow Lake Estates Mhp serve?
Willow Lake Estates Mhp reports serving 920 people in Illinois, per its EPA record.
Has Willow Lake Estates Mhp had any water quality violations?
The EPA has 51 violations on file for Willow Lake Estates Mhp, of which 4 are health-based (a contaminant limit or required treatment was breached) and 2 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.