TWAIN HARTE, CA · Tuolumne County
SIERRA VILLAGE MUTUAL WATER CO 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)
- CA5500074
- System type
- Community Water System
- Population served
- 361
- Service connections
- 129
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Notification, Public
—No contaminant on record
July 1, 1983 – July 31, 1983
ArchivedNotification, Public
—No contaminant on record
March 1, 1983 – March 31, 1983
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1981 – September 30, 1982
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 30, 1980 – October 29, 1981
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 1983 – July 31, 1983 | Notification, Public | — | — | Archived |
| March 1, 1983 – March 31, 1983 | Notification, Public | — | — | Archived |
| October 1, 1981 – September 30, 1982 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
| October 30, 1980 – October 29, 1981 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- September 15, 2025State Compliance achieved1 linked violation
- August 27, 2025State Formal Notice of Violation issued1 linked violation
- July 5, 2012State Compliance achieved1 linked violation
- June 4, 2012State Administrative/Compliance Order without penalty issued2 linked violations
- February 20, 2002State Compliance achieved1 linked violation
- February 20, 2002State Violation/Reminder Notice1 linked violation
- February 20, 2002State Public Notification requested6 linked violations
Contact
SANTI, JOE
209-770-1872
TWAIN HARTE, CA 95383