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 | 2007-07-01 → 2007-07-31 |
| MCL | Health-based | Resolved | 2007-07-01 → 2007-07-31 |
| MCL | Health-based | Resolved | 2007-07-01 → 2007-07-31 |
| MCL | Health-based | Resolved | 2007-07-01 → 2007-07-31 |
| MCL | Health-based | Archived | 1996-07-01 → 1996-07-31 |
| MCL | Health-based | Archived | 1996-07-01 → 1996-07-31 |
| MR | Monitoring | Archived | 1996-07-01 → 1996-07-31 |
| MR | Monitoring | Archived | 1996-07-01 → 1996-07-31 |
| MR | Monitoring | Archived | 1995-03-01 → 1995-03-31 |
| MR | Monitoring | Archived | 1995-03-01 → 1995-03-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 13.66 µg/L No EPA limit set
worst single sample: 17.1 µg/L | 145/145 | SYR4 | 2012–2019 |
| Chloroform | 30.92 µg/L No EPA limit set
worst single sample: 39 µg/L | 145/145 | SYR4 | 2012–2019 |
| Dibromochloromethane | 7.9 µg/L No EPA limit set
worst single sample: 9.3 µg/L | 145/145 | SYR4 | 2012–2019 |
| TTHM | 52.2 µg/L 65% of the EPA limit 80 µg/L
worst single sample: 59.8 µg/L | 145/145 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 11.27 µg/L No EPA limit set
worst single sample: 12.9 µg/L | 144/145 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 20.925 µg/L 35% of the EPA limit 60 µg/L
worst single sample: 23.2 µg/L | 144/145 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 8.97 µg/L No EPA limit set
worst single sample: 10.3 µg/L | 144/145 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 2.3 µg/L No EPA limit set
worst single sample: 2.6 µg/L | 122/145 | SYR4 | 2012–2019 |
| Copper | 153 µg/L 12% of the EPA limit 1300 µg/L
worst single sample: 557 µg/L | 61/90 | SYR4 | 2012–2018 |
| Monobromoacetic Acid | 1.8 µg/L No EPA limit set
worst single sample: 1.9 µg/L | 33/145 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 17/17 | LCR | 2024 |
| Lead | 11.9 µg/L 79% of the EPA limit 15 µg/L
worst single sample: 14 µg/L | 8/90 | SYR4 | 2012–2018 |
| Bromoform | 2.55 µg/L No EPA limit set
worst single sample: 3 µg/L | 7/145 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 3.84 µg/L No EPA limit set
worst single sample: 3.9 µg/L | 2/145 | SYR4 | 2012–2019 |
30 contaminants tested, none detected
Utility contact
Frequently asked questions about Il American-West Suburban
Is Il American-West Suburban tap water safe to drink?
EPA monitoring detected 14 contaminants in Il American-West 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-West Suburban's water?
EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, TTHM, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.
How many people does Il American-West Suburban serve?
Il American-West Suburban reports serving 73,978 people in Illinois, per its EPA record.
Has Il American-West Suburban had any water quality violations?
The EPA has 13 violations on file for Il American-West Suburban, of which 6 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.