Water Quality: San Francisco, CA
4 water systems • 3,643 people served
Multiple Health Violations197
Total Violations
93
Health-Based Violations
4
Water Systems
3,643
Population Served
Water Quality Summary
San Francisco has 93 health-based violations on record, meaning one or more contaminants were found above EPA-established safe levels. Contaminants involved: Chlorine Dioxide, Fecal Coliform. In total, 197 violations are on record for 4 water systems serving 3,643 people.
Contaminants Found
Chlorine Dioxide
Fecal Coliform
Water Systems Serving San Francisco
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| PRESIDIO OF SAN FRANCISCO | CA3810700 | Surface Water | 3,500 | 0 |
| SIX ACRES WATER COMPANY | CA4900608 | Surface Water | 66 | 113 |
| SONOMA COUNTY MUTUAL WATER COMPANY | CA4900640 | Surface Water | 40 | 83 |
| SUNRISE MOBILEHOME PARK | CA4500104 | Groundwater | 37 | 1 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.