Middletown Rancheria Community Water System
California - Community Water System - PWSID: 090600141
System Information
| PWSID | 090600141 |
| System Name | Middletown Rancheria Community Water System |
| System Type | Community Water System |
| Water Source | Ground Water Purchased |
| Activity Status | Active |
| Owner Type | Native American |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 2, 1984 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | California |
| City | Middletown |
| ZIP Code | 95461 |
| Address | PO Box1035 |
| Organization | Middletown Rancheria of Pomo Indians of California |
| Phone | - |
Population & Service
| Population Served | 487 |
| Service Connections | 48 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| May 17, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| May 17, 2025 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Feb 1, 2024 | - | RPT | No | No | - | - | - | Resolved | Mar 21, 2024 | - |
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.