Koliganek Water System
PWSID: AK2260040
System Details
| Population Served | 170 |
| Service Connections | 40 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Native American |
| Status | Active |
| City | Koliganek |
| Zip Code | 99576 |
Areas Served
- Koliganek, Dillingham Census Area County
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Copper (90th percentile) | 2.5300 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Copper (90th percentile) | 2.5300 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Copper (90th percentile) | 2.2250 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Copper (90th percentile) | 2.1000 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Copper (90th percentile) | 1.4000 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Lead (90th percentile) | 0.0088 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0065 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0065 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0058 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0051 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0045 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0036 mg/L | 0.015 mg/L | Below Action Level |
1 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2004-03-05 | | Open |
Violation History (75 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2024-03-20 | | Returned to Compliance |
| | 2024-03-20 | | Returned to Compliance |
| | 2024-01-20 | | Returned to Compliance |
| | 2024-01-20 | | Returned to Compliance |
| | 2024-01-01 | Major | Acknowledged |
| | 2024-01-01 | Major | Returned to Compliance |
| | 2023-07-01 | | Returned to Compliance |
| | 2023-07-01 | | Returned to Compliance |
| | 2023-07-01 | | Returned to Compliance |
| | 2022-01-01 | Major | Returned to Compliance |
| | 2022-01-01 | Major | Acknowledged |
| | 2022-01-01 | Major | Returned to Compliance |
| | 2021-10-01 | | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2019-10-01 | | Returned to Compliance |
| | 2019-09-01 | Major | Returned to Compliance |
| | 2018-08-27 | Yes | Returned to Compliance |
| | 2018-08-27 | Yes | Returned to Compliance |
| | 2018-08-27 | Yes | Returned to Compliance |
| | 2018-08-27 | Yes | Returned to Compliance |
| | 2018-08-27 | Yes | Returned to Compliance |
| | 2018-08-27 | Yes | Returned to Compliance |
| | 2018-08-27 | Yes | Returned to Compliance |
| | 2018-08-01 | Major | Returned to Compliance |
| | 2018-07-01 | Major | Returned to Compliance |
| | 2017-09-01 | Major | Returned to Compliance |
| | 2017-07-01 | Major | Returned to Compliance |
| | 2017-01-01 | Major | Returned to Compliance |
| | 2016-07-01 | Major | Returned to Compliance |
| | 2016-01-01 | | Returned to Compliance |
| | 2015-01-01 | Major | Returned to Compliance |
| | 2014-07-02 | | Returned to Compliance |
| | 2014-07-01 | | Returned to Compliance |
| | 2014-06-01 | Yes | Returned to Compliance |
| | 2014-06-01 | Yes | Returned to Compliance |
| | 2014-06-01 | Yes | Returned to Compliance |
| | 2014-06-01 | Yes | Returned to Compliance |
| | 2014-06-01 | Yes | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
| | 2014-01-01 | Major | Returned to Compliance |
Showing 50 of 74 historical violations.