YOSEMITE NPS-MARIPOSA GROVE
California — Transient Non-Community — PWSID: CA2010500
System Information
| PWSID | CA2010500 |
| System Name | YOSEMITE NPS-MARIPOSA GROVE |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | California |
| City | YOSEMITE NP |
| ZIP Code | 95389 |
| Address | P.O. BOX 577 |
| Organization | TRUMM, MICHAEL |
| Phone | 209-379-1055 |
Population & Service
| Population Served | 3,500 |
| Service Connections | 3 |
Drinking Water Violations
No violations recorded for this water system in the EPA SDWIS database.
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.