Keystone Water Supply
PWSID: IA0640030
System Details
| Population Served | 599 |
| Service Connections | 280 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Keystone |
| Zip Code | 52249 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0128 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0068 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0059 mg/L | 0.015 mg/L | Below Action Level |
Violation History (9 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2021-05-01 | Yes | Returned to Compliance |
| | 2021-04-01 | Yes | Returned to Compliance |
| | 2020-11-01 | Yes | Returned to Compliance |
| | 2018-12-01 | | Returned to Compliance |
| | 2018-09-01 | Yes | Returned to Compliance |
| | 2018-07-01 | Major | Returned to Compliance |
| | 2018-07-01 | Major | Returned to Compliance |
| | 2013-07-20 | | Returned to Compliance |
| | 1990-10-01 | | Returned to Compliance |