BURLINGAME, CA · San Francisco County
SAN FRANCISCO REGIONAL WATER SYSTEM Water System
Consumer Confidence Report status
SAN FRANCISCO REGIONAL WATER SYSTEM must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for SAN FRANCISCO REGIONAL WATER SYSTEM.
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)
- CA3810001
- System type
- Community Water System
- Population served
- 600
- Service connections
- 256
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
SAN FRANCISCO REGIONAL WATER SYSTEM is one of 728 community water systems in California in the 501 to 3,300 people size category, serving 600 people from surface water.
As of August 1, 2026, its federal record holds 1 entry in 1991, all of which EPA lists as closed. Nothing has been added since 1991.
None of the 1 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Total Coliform Rules.
Violation history
Maximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
April 1, 1991 – April 30, 1991
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| April 1, 1991 – April 30, 1991 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- July 23, 1998State Compliance achieved4 linked violations
- February 5, 1996State Administrative/Compliance Order without penalty issued1 linked violation
- September 1, 1995State Compliance achieved4 linked violations
- April 5, 1991State Violation/Reminder Notice2 linked violations
Common questions
Is SAN FRANCISCO REGIONAL WATER SYSTEM required to publish a Consumer Confidence Report?
- Yes. SAN FRANCISCO REGIONAL WATER SYSTEM is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is SAN FRANCISCO REGIONAL WATER SYSTEM’s next Consumer Confidence Report due?
- SAN FRANCISCO REGIONAL WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SAN FRANCISCO REGIONAL WATER SYSTEM have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for SAN FRANCISCO REGIONAL WATER SYSTEM.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
DEGRACA, ANDREW
650-652-3100
BURLINGAME, CA 94010-2301