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 | Unaddressed | 2024-10-17 |
| TT | Health-based | Unaddressed | 2024-10-17 |
| TT | Health-based | Unaddressed | 2024-10-17 |
| Other | Monitoring | Resolved | 2025-08-22 |
| Other | Monitoring | Resolved | 2025-08-22 |
| RPT | Monitoring | Unaddressed | 2025-07-02 |
| RPT | Monitoring | Unaddressed | 2025-07-02 |
| Other | Monitoring | Unaddressed | 2025-07-01 |
| RPT | Monitoring | Unaddressed | 2024-10-17 |
| RPT | Monitoring | Unaddressed | 2024-10-17 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 8.087 µg/L No EPA limit set
worst single sample: 8.4 µg/L | 24/24 | SYR4 | 2012–2019 |
| Chloroform | 13.635 µg/L No EPA limit set
worst single sample: 16.1 µg/L | 24/24 | SYR4 | 2012–2019 |
| Dibromochloromethane | 5.8475 µg/L No EPA limit set
worst single sample: 6 µg/L | 24/24 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 4.395 µg/L No EPA limit set
worst single sample: 6.23 µg/L | 24/24 | SYR4 | 2012–2019 |
| TTHM | 26.902 µg/L 34% of the EPA limit 80 µg/L
worst single sample: 29.6 µg/L | 24/24 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 8.04 µg/L 13% of the EPA limit 60 µg/L
worst single sample: 12.48 µg/L | 24/24 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 1.7 µg/L No EPA limit set | 18/24 | SYR4 | 2012–2019 |
| Bromoform | 1.742 µg/L No EPA limit set
worst single sample: 3.11 µg/L | 17/24 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 2.804 µg/L No EPA limit set
worst single sample: 2.82 µg/L | 17/24 | SYR4 | 2012–2019 |
| Lead | 0.0014 mg/L 9.3% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2023 |
| Copper | 498.4 µg/L 38% of the EPA limit 1300 µg/L
worst single sample: 702 µg/L | 9/40 | SYR4 | 2014–2017 |
| Lead | 8.4235 µg/L 56% of the EPA limit 15 µg/L
worst single sample: 8.59 µg/L | 2/40 | SYR4 | 2014–2017 |
| Monobromoacetic Acid | 2.11 µg/L No EPA limit set | 1/24 | SYR4 | 2012–2019 |
31 contaminants tested, none detected
Utility contact
Frequently asked questions about Round Lake Park
Is Round Lake Park tap water safe to drink?
EPA monitoring detected 13 contaminants in Round Lake Park'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 Round Lake Park's water?
EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, Dichloroacetic Acid, TTHM, and others. The full list with the level and data source for each is above.
How many people does Round Lake Park serve?
Round Lake Park reports serving 4,900 people in Illinois, per its EPA record.
Has Round Lake Park had any water quality violations?
The EPA has 21 violations on file for Round Lake Park, of which 3 are health-based (a contaminant limit or required treatment was breached) and 11 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.