MILLERSYLVANIA STATE PARK
Washington — Transient Non-Community — PWSID: WA53SP530
System Information
| PWSID | WA53SP530 |
| System Name | MILLERSYLVANIA 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 | Olympia |
| ZIP Code | 98512 |
| Address | 11838 Tilley Rd South |
| Organization | MILLERSYLVANIA STATE PARK |
| Phone | — |
Population & Service
| Population Served | 3,456 |
| Service Connections | 72 |
Drinking Water Violations (4)
This water system has 4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2025 | Apr 30, 2025 | MON | No | No | — | — | — | Resolved | Apr 30, 2025 | — | |
| Apr 1, 2019 | Apr 30, 2019 | MON | No | Yes | — | — | — | Resolved | Apr 30, 2019 | — | |
| Jan 1, 2019 | Dec 31, 2019 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Mar 1, 1992 | Mar 31, 1992 | MR | No | No | — | 5% of samples | — | Archived | Mar 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.