KOOSKIA WATER DEPT
Idaho — Community Water System — PWSID: ID2250032
System Information
| PWSID | ID2250032 |
| System Name | KOOSKIA WATER DEPT |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 13, 1980 |
| Last Reported | Dec 19, 2025 |
Location & Contact
| State | Idaho |
| City | KOOSKIA |
| ZIP Code | 83539 |
| Address | PO BOX 126 |
| Organization | MARTINEZ, CARLOS |
| Phone | 208-926-4751 |
Population & Service
| Population Served | 607 |
| Service Connections | 417 |
Drinking Water Violations (5)
This water system has 5 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2016 | Jan 31, 2016 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2016 | Total Coliform Rule |
| Jan 1, 2016 | Jan 31, 2016 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2016 | Total Coliform Rule |
| May 1, 1992 | May 31, 1992 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | May 31, 1992 | Total Coliform Rule |
| May 1, 1991 | May 31, 1991 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | May 31, 1991 | Total Coliform Rule |
| Oct 1, 1979 | Oct 31, 1979 | Gross Alpha, Excl. Radon and U | MR | No | No | — | 15 pCi/L | — | Archived | Oct 31, 1979 | Radionuclides and Revised Rad Rule |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.