WANAPUM STATE PARK
Washington — Transient Non-Community — PWSID: WA53SP975
System Information
| PWSID | WA53SP975 |
| System Name | WANAPUM STATE PARK |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | State |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 7, 1981 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Washington |
| City | Ellensburg |
| ZIP Code | 98926 |
| Address | PO Box 893 |
| Organization | WANAPUM STATE PARK |
| Phone | — |
Population & Service
| Population Served | 2,263 |
| Service Connections | 61 |
Drinking Water Violations (6)
This water system has 6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov 1, 2022 | Nov 30, 2022 | MCL | Yes | No | — | — | — | Resolved | Nov 30, 2022 | — | |
| Nov 1, 2022 | Nov 30, 2022 | MCL | Yes | No | — | — | — | Resolved | Nov 30, 2022 | — | |
| Jan 1, 2019 | Jan 31, 2019 | MON | No | Yes | — | — | — | Resolved | Jan 31, 2019 | — | |
| Sep 1, 2010 | Sep 30, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2010 | — | |
| Sep 1, 2010 | Sep 30, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2010 | — | |
| May 1, 1992 | May 31, 1992 | MR | No | No | — | 5% of samples | — | Archived | May 31, 1992 | — |
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.