Crest Hill
PWSID: IL1970250
System Details
| Population Served | 21,169 |
| Service Connections | 6,500 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Crest Hill |
| Zip Code | 60403 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Copper (90th percentile) | 1.6860 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Lead (90th percentile) | 0.0078 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0026 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0024 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0015 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0013 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0013 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0008 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
4 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-12 | | Open |
| | 2025-07-02 | | Open |
| | 2025-07-01 | | Open |
| | 2024-07-01 | | Open |
Violation History (52 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-02-23 | | Returned to Compliance |
| | 2024-07-13 | | Returned to Compliance |
| | 2024-07-13 | | Returned to Compliance |
| | 2024-07-01 | | Returned to Compliance |
| | 2024-01-02 | Yes | Returned to Compliance |
| | 2023-07-01 | | Returned to Compliance |
| | 2023-07-01 | | Returned to Compliance |
| | 2023-07-01 | | Returned to Compliance |
| | 2023-07-01 | | Returned to Compliance |
| | 2023-07-01 | Major | Returned to Compliance |
| | 2023-07-01 | Major | Returned to Compliance |
| | 2023-07-01 | Major | Acknowledged |
| | 2023-07-01 | Major | Returned to Compliance |
| | 2023-07-01 | Major | Returned to Compliance |
| | 2023-07-01 | Major | Returned to Compliance |
| | 2023-07-01 | Major | Acknowledged |
| | 2023-07-01 | Major | Returned to Compliance |
| | 2021-10-01 | | Returned to Compliance |
| | 2021-10-01 | | Returned to Compliance |
| | 2021-10-01 | | Returned to Compliance |
| | 2021-10-01 | Major | Returned to Compliance |
| | 2021-09-01 | | Returned to Compliance |
| | 2021-07-01 | | Returned to Compliance |
| | 2021-07-01 | | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2019-12-01 | | Returned to Compliance |
| | 2019-11-01 | | Returned to Compliance |
| | 2019-10-01 | | Returned to Compliance |
| | 2018-12-01 | | Returned to Compliance |
| | 2018-10-16 | | Returned to Compliance |
| | 2018-10-01 | Major | Returned to Compliance |
| | 2018-07-01 | | Returned to Compliance |
| | 2016-11-01 | Major | Returned to Compliance |
| | 2016-11-01 | Major | Returned to Compliance |
| | 2016-07-01 | | Returned to Compliance |
| | 2016-07-01 | | Returned to Compliance |
| | 2016-06-01 | | Returned to Compliance |
| | 2016-04-01 | | Returned to Compliance |
| | 2013-07-01 | | Returned to Compliance |
| | 2005-10-01 | | Returned to Compliance |
| | 1993-09-02 | Yes | Returned to Compliance |
| | 1993-07-01 | Yes | Returned to Compliance |
| | 1992-10-01 | | Returned to Compliance |