Public water system record
San Francisco Regional Water System
On record as serving San Francisco County, CA · Serves 600 people
Federal records show no health-based violations and no monitoring or reporting issues for San Francisco Regional Water System in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- San Francisco Regional Water System draws water from 8 wells, 13 surface water intakes and 1 reservoir (8 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order (no penalty) by California, July 1998.
- Record on file since 1991, with 5 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 92 service lines.
Check whether San Francisco Regional Water System serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016, and no monitoring or reporting violations either.
Full record since 1991
EPA's records for San Francisco Regional Water System go back to 1991. Before October 19, 2016 they list 5 health-based violations (5 resolved) and 2 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 5 | 2 |
Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began June 1998, Resolved.
Show all 5 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1998 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1993 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 1991 | Resolved |
Enforcement actions
California regulators took 3 formal enforcement actions against San Francisco Regional Water System between 1992 and 1998. The most recent was a compliance order (no penalty) in July 1998.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jul 23, 1998 | California | Compliance order (no penalty) | 1 violation (1 health-based): Surface Water Treatment Rule |
| Feb 5, 1996 | California | Compliance order (no penalty) | 1 violation (1 health-based): Surface Water Treatment Rule |
| Mar 5, 1992 | California | Compliance order (no penalty) | 1 violation (1 health-based): Surface Water Treatment Rule |
Where the water comes from
San Francisco Regional Water System draws water from 8 wells, 13 surface water intakes and 1 reservoir (8 of them for emergency, seasonal or other part-time use). 35 other community water systems and 3 smaller public systems such as schools, businesses or campgrounds buy water from San Francisco Regional Water System.
Community systems that buy water from it
- Alameda County Water District Fremont, CA
- California Water Service - Bear Gulch San Jose, CA
- California Water Service - San Carlos San Jose, CA
- California Water Service - San Mateo San Jose, CA
- California Water Service-S San Francisco San Jose, CA
- City of Brisbane Brisbane, CA
- City of Burlingame Burlingame, CA
- City of Daly City Daly City, CA
- City of East Palo Alto East Palo Alto, CA
- City of Hayward Hayward, CA
- City of Millbrae Millbrae, CA
- City of Milpitas Milpitas, CA
- City of Mountain View Mountain View, CA
- City of Palo Alto Palo Alto, CA
- City of Redwood City Redwood City, CA
- City of San Bruno San Bruno, CA
- City of San Jose - NSJ/Alviso San Jose, CA
- City of Santa Clara Santa Clara, CA
- City of Sunnyvale Sunnyvale, CA
- Estero Municipal Improvement District Foster City, CA
- Guadalupe Valley Mid Brisbane, CA
- HHW&P Moccasin Compound-Sfpuc Burlingame, CA
- Menlo Park Municipal Water Menlo Park, CA
- Mid-Peninsula Water District Belmont, CA
- Nasa Ames Research Center Moffett Field, CA
- North Coast County Water Dist Pacifica, CA
- Presidio of San Francisco San Francisco, CA
- Purissima Hills Water District Los Altos Hills, CA
- Santa Clara Valley Water District San Jose, CA
- Sfpuc City Distribution Division Burlingame, CA
- Stanford University Stanford, CA
- Thomas Shaft Wholesale Burlingame, CA
- Town of Hillsborough Hillsborough, CA
- Town of Sunol - Sfpuc Burlingame, CA
- Westborough Water District South San Francisco, CA
Annual water quality report
San Francisco Regional Water System must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by California.
Certified drinking water labs by state EPA guidance for private wells