Ottawa
PWSID: IL0990800
System Details
| Population Served | 18,097 |
| Service Connections | 8,049 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Ottawa |
| Zip Code | 61350 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0178 mg/L | 0.015 mg/L | EXCEEDS Action Level |
| Lead (90th percentile) | 0.0097 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0091 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0075 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0067 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0062 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0061 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0050 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0021 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 |
1 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-02 | | Open |
Violation History (222 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2023-07-01 | Yes | Returned to Compliance |
| | 2023-07-01 | Yes | Returned to Compliance |
| | 2023-07-01 | Yes | Acknowledged |
| | 2023-07-01 | Yes | Returned to Compliance |
| | 2023-07-01 | Yes | Returned to Compliance |
| | 2023-07-01 | Yes | Returned to Compliance |
| | 2023-01-01 | Major | Returned to Compliance |
| | 2023-01-01 | Major | Returned to Compliance |
| | 2023-01-01 | Major | Acknowledged |
| | 2023-01-01 | Major | Acknowledged |
| | 2023-01-01 | Major | Acknowledged |
| | 2023-01-01 | Major | Acknowledged |
| | 2023-01-01 | Major | Returned to Compliance |
| | 2023-01-01 | Major | Returned to Compliance |
| | 2023-01-01 | Major | Acknowledged |
| | 2023-01-01 | Major | Acknowledged |
| | 2023-01-01 | Major | Acknowledged |
| | 2023-01-01 | Major | Acknowledged |
| | 2022-10-01 | Major | Returned to Compliance |
| | 2022-10-01 | Major | Returned to Compliance |
| | 2022-10-01 | Major | Returned to Compliance |
| | 2022-10-01 | Major | Returned to Compliance |
| | 2022-10-01 | Major | Returned to Compliance |
| | 2022-10-01 | Major | Returned to Compliance |
| | 2022-10-01 | Major | Returned to Compliance |
| | 2022-10-01 | Major | Returned to Compliance |
| | 2022-07-01 | Major | Returned to Compliance |
| | 2022-07-01 | Major | Returned to Compliance |
| | 2022-07-01 | Major | Returned to Compliance |
| | 2022-07-01 | Major | Returned to Compliance |
| | 2022-07-01 | Major | Returned to Compliance |
| | 2022-07-01 | Major | Returned to Compliance |
| | 2022-01-01 | Major | Returned to Compliance |
| | 2022-01-01 | Major | Acknowledged |
| | 2022-01-01 | Major | Returned to Compliance |
| | 2022-01-01 | Major | Acknowledged |
| | 2022-01-01 | Major | Acknowledged |
| | 2022-01-01 | Major | Acknowledged |
| | 2022-01-01 | Major | Returned to Compliance |
| | 2022-01-01 | Major | Acknowledged |
| | 2022-01-01 | Major | Returned to Compliance |
| | 2022-01-01 | Major | Acknowledged |
| | 2022-01-01 | Major | Acknowledged |
| | 2022-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
Showing 50 of 221 historical violations.