Callao Pws
PWSID: MO2010125
System Details
| Population Served | 311 |
| Service Connections | 126 |
| Water Source | Surface Water Purchased |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Callao |
| Zip Code | 63534-0000 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0026 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0012 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0005 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0005 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0005 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0005 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0005 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0005 mg/L | 0.015 mg/L | Below Action Level |
1 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-01 | | Open |
Violation History (35 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-06-01 | Major | Acknowledged |
| | 2025-06-01 | Major | Returned to Compliance |
| | 2024-10-01 | | Returned to Compliance |
| | 2024-03-01 | Major | Returned to Compliance |
| | 2024-03-01 | Major | Returned to Compliance |
| | 2024-03-01 | Major | Acknowledged |
| | 2024-03-01 | Major | Returned to Compliance |
| | 2023-12-14 | | Returned to Compliance |
| | 2023-12-14 | | Returned to Compliance |
| | 2023-10-01 | | Returned to Compliance |
| | 2023-10-01 | | Returned to Compliance |
| | 2023-04-01 | Major | Returned to Compliance |
| | 2023-04-01 | Major | Acknowledged |
| | 2023-04-01 | Major | Returned to Compliance |
| | 2023-04-01 | Major | Returned to Compliance |
| | 2022-08-01 | Major | Returned to Compliance |
| | 2022-08-01 | Major | Returned to Compliance |
| | 2022-08-01 | Major | Returned to Compliance |
| | 2022-07-01 | | Returned to Compliance |
| | 2022-07-01 | | Returned to Compliance |
| | 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 | Acknowledged |
| | 2022-01-01 | Major | Acknowledged |
| | 2021-09-01 | Major | Returned to Compliance |
| | 2015-10-01 | | Returned to Compliance |
| | 2012-07-01 | | Returned to Compliance |
| | 2001-10-01 | | Returned to Compliance |
| | 2000-07-01 | | Returned to Compliance |
| | 1995-01-01 | | Returned to Compliance |