SONORA, CA · Tuolumne County
TUD - MONTE GRANDE WATER SYSTEM Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of February 20, 2015. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in Tuolumne County, CA.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
- CA5510030
- System type
- Community Water System
- Population served
- 548
- Service connections
- 232
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
TUD - MONTE GRANDE WATER SYSTEM is one of 728 community water systems in California in the 501 to 3,300 people size category, formerly serving 548 people from surface water.
EPA's federal records list this system as inactive in 2015; the record below is historical.
As of August 1, 2026, EPA's published records contain no violations for this system.
Violation history
No violations on record for this system.
Enforcement actions
- February 20, 1996State Formal Notice of Violation issued6 linked violations
Last known contact on file (system is inactive)
PERKINS, DON
209-532-5536
SONORA, CA 95370