Drinking Water Compliance OS

SAN JOSE, CA · San Mateo County

CALIFORNIA WATER SERVICE-S SAN FRANCISCO 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)
CA4110009
System type
Community Water System
Population served
64,146
Service connections
16,449
Ownership
privately owned
Water source
surface water (rivers, lakes, or reservoirs)

Violation history

No violations on record for this system.

Enforcement actions

No enforcement actions on record for this system.

Contact

JAMES, SOPHIE

408-367-8593

SAN JOSE, CA 95112