BRISBANE, CA · San Mateo County
GUADALUPE VALLEY MID 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)
- CA4110005
- System type
- Community Water System
- Population served
- 1,472
- Service connections
- 749
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Follow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
August 1, 2004 – December 24, 2004
ResolvedNotification, Public
—Coliform (TCR)
September 1, 1999 – September 30, 1999
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| August 1, 2004 – December 24, 2004 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| September 1, 1999 – September 30, 1999 | Notification, Public | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- December 24, 2004State Compliance achieved1 linked violation
- October 15, 1999State Violation/Reminder Notice26 linked violations
Contact
BOZORGINIA, MAZ
415-508-2131
BRISBANE, CA 94005