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 | 1989-12-01 → 1993-11-30 |
| MCL | Health-based | Resolved | 1989-12-01 → 1993-11-30 |
| MCL | Health-based | Resolved | 1989-12-01 → 1993-11-30 |
| MCL | Health-based | Resolved | 1989-12-01 → 1993-11-30 |
| MCL | Health-based | Resolved | 1989-12-01 → 1993-11-30 |
| MCL | Health-based | Resolved | 1989-12-01 → 1993-11-30 |
| MCL | Health-based | Resolved | 1989-12-01 → 1993-11-30 |
| MCL | Health-based | Resolved | 1989-12-01 → 1993-11-30 |
| MCL | Health-based | Resolved | 1989-12-01 → 1993-11-30 |
| MCL | Health-based | Resolved | 1989-12-01 → 1993-11-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 13.715 µg/L No EPA limit set
worst single sample: 15.1 µg/L | 98/98 | SYR4 | 2012–2019 |
| Chloroform | 30.36 µg/L No EPA limit set
worst single sample: 33.4 µg/L | 98/98 | SYR4 | 2012–2019 |
| Dibromochloromethane | 7.745 µg/L No EPA limit set
worst single sample: 8.4 µg/L | 98/98 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 12.675 µg/L No EPA limit set
worst single sample: 14.2 µg/L | 98/98 | SYR4 | 2012–2019 |
| TTHM | 51.1 µg/L 64% of the EPA limit 80 µg/L
worst single sample: 56.1 µg/L | 98/98 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 22.2 µg/L 37% of the EPA limit 60 µg/L
worst single sample: 25.7 µg/L | 98/98 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 7.615 µg/L No EPA limit set
worst single sample: 10.2 µg/L | 98/98 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 2.1 µg/L No EPA limit set
worst single sample: 2.9 µg/L | 83/98 | SYR4 | 2012–2019 |
| Copper | 115.65 µg/L 8.9% of the EPA limit 1300 µg/L
worst single sample: 171 µg/L | 68/142 | SYR4 | 2014–2019 |
| Monobromoacetic Acid | 4.18 µg/L No EPA limit set
worst single sample: 5.1 µg/L | 30/98 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 21/21 | LCR | 2023 |
| Lead | 42 µg/L 280% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 87 µg/L | 13/142 | SYR4 | 2014–2019 |
| Monochloroacetic Acid | 2.59 µg/L No EPA limit set
worst single sample: 2.6 µg/L | 2/98 | SYR4 | 2012–2019 |
31 contaminants tested, none detected
Utility contact
Frequently asked questions about Il American-Chicago Suburban
Is Il American-Chicago Suburban tap water safe to drink?
EPA monitoring detected 13 contaminants in Il American-Chicago Suburban'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 Il American-Chicago Suburban'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 Il American-Chicago Suburban serve?
Il American-Chicago Suburban reports serving 11,187 people in Illinois, per its EPA record.
Has Il American-Chicago Suburban had any water quality violations?
The EPA has 45 violations on file for Il American-Chicago Suburban, of which 40 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.