CLAREMONT, CA · Los Angeles County
THREE VALLEYS MWD 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)
- CA1910041
- System type
- Community Water System
- Population served
- 0
- Service connections
- 15
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Operations Report
—No contaminant on record
November 1, 2003 – November 24, 2003
ResolvedNotification, Public
—No contaminant on record
November 1, 1988 – November 30, 1988
ArchivedNotification, Public
—No contaminant on record
June 1, 1988 – June 30, 1988
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| November 1, 2003 – November 24, 2003 | Operations Report | — | — | Resolved |
| November 1, 1988 – November 30, 1988 | Notification, Public | — | — | Archived |
| June 1, 1988 – June 30, 1988 | Notification, Public | — | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- November 24, 2003State Compliance achieved4 linked violations
Contact
LANG, STEPHEN
909-293-7034
CLAREMONT, CA 91711