Drinking Water Compliance OS

SAN JOSE, CA · Kern County

CWS MTN. SHADOWS WATER SYSTEM Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of October 18, 2010. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Kern County, CA.

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)
CA1500438
System type
Community Water System
Population served
162
Service connections
58
Ownership
privately owned
Water source
groundwater (wells)

Violation history

No violations on record for this system.

Enforcement actions

No enforcement actions on record for this system.

Last known contact on file (system is inactive)

CALIFORNIA WATER SERVICE CO.

6618582161

SAN JOSE, CA 95112