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 |
|---|---|---|---|
| Other | Monitoring | Unaddressed | 2025-07-01 |
| Other | Monitoring | Resolved | 2011-07-01 |
| Other | Monitoring | Resolved | 2011-07-01 |
| Other | Monitoring | Resolved | 2010-10-06 |
| Other | Monitoring | Resolved | 2010-10-06 |
| MR | Monitoring | Archived | 1977-06-30 → 1981-06-29 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 96.2 µg/L 7.4% of the EPA limit 1300 µg/L
worst single sample: 180 µg/L | 40/40 | SYR4 | 2014–2017 |
| Bromodichloromethane | 13.495 µg/L No EPA limit set
worst single sample: 16 µg/L | 30/30 | SYR4 | 2012–2019 |
| Chloroform | 37.18 µg/L No EPA limit set
worst single sample: 46 µg/L | 30/30 | SYR4 | 2012–2019 |
| Dibromochloromethane | 6.27865 µg/L No EPA limit set
worst single sample: 6.4 µg/L | 30/30 | SYR4 | 2012–2019 |
| TTHM | 54.73 µg/L 68% of the EPA limit 80 µg/L
worst single sample: 68 µg/L | 30/30 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 37.94 µg/L 63% of the EPA limit 60 µg/L
worst single sample: 47.5 µg/L | 30/30 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 10.91 µg/L No EPA limit set
worst single sample: 11.7 µg/L | 30/30 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 18.965 µg/L No EPA limit set
worst single sample: 19.5 µg/L | 24/30 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 1.842 µg/L No EPA limit set
worst single sample: 1.91 µg/L | 18/30 | SYR4 | 2012–2019 |
| Lead | 0.0120 mg/L 80% of the EPA limit 0.0150 mg/L | 17/17 | LCR | 2025 |
| Lead | 2.675 µg/L 18% of the EPA limit 15 µg/L
worst single sample: 2.8 µg/L | 6/40 | SYR4 | 2014–2017 |
| Bromoform | 2.4085 µg/L No EPA limit set
worst single sample: 2.41 µg/L | 2/30 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 5.285 µg/L No EPA limit set
worst single sample: 5.32 µg/L | 2/30 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 10.664 µg/L No EPA limit set
worst single sample: 10.7 µg/L | 2/30 | SYR4 | 2012–2019 |
30 contaminants tested, none detected
Utility contact
Frequently asked questions about La Grange Highlands Sanitary District
Is La Grange Highlands Sanitary District tap water safe to drink?
EPA monitoring detected 14 contaminants in La Grange Highlands Sanitary District'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 La Grange Highlands Sanitary District's water?
EPA monitoring detected Copper, Bromodichloromethane, Chloroform, Dibromochloromethane, TTHM, and others. The full list with the level and data source for each is above.
How many people does La Grange Highlands Sanitary District serve?
La Grange Highlands Sanitary District reports serving 6,600 people in Illinois, per its EPA record.
Has La Grange Highlands Sanitary District had any water quality violations?
The EPA has 6 violations on file for La Grange Highlands Sanitary District, of which 0 are health-based (a contaminant limit or required treatment was breached) and 1 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.