SONORA, CA · Tuolumne County
TUD - COLUMBIA WATER SYSTEM Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace California’s official records. Always confirm current status with California before making decisions based on this information.
System facts
- System ID (PWSID)
- CA5510013
- System type
- Community Water System
- Population served
- 5,463
- Service connections
- 2,092
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
No violations on record for this system.
Enforcement actions
No enforcement actions on record for this system.
Contact
HALL, ERIC
209-532-5536
SONORA, CA 95370