Drinking Water Compliance OS

STOCKTON, CA · San Joaquin County

SHADOW LAKE MOBILE HOME COMMUN Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of June 9, 2009. 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 San Joaquin 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)
CA3910013
System type
Community Water System
Population served
0
Service connections
256
Ownership
privately owned
Water source
groundwater (wells)

Violation history

  • Notification, Public

    No contaminant on record

    August 1, 1990 – August 31, 1990

    Archived
  • Notification, Public

    No contaminant on record

    January 1, 1990 – January 31, 1990

    Archived
  • Notification, Public

    No contaminant on record

    October 1, 1988 – October 31, 1988

    Archived
  • Monitoring, Regular

    Arsenic

    July 1, 1987 – July 31, 1987

    Archived
  • Monitoring, Regular

    Selenium

    July 1, 1987 – July 31, 1987

    Archived
  • Notification, Public

    No contaminant on record

    July 1, 1987 – July 31, 1987

    Archived
  • Monitoring, Regular

    Nitrate

    July 1, 1987 – July 31, 1987

    Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

No enforcement actions on record for this system.

Last known contact on file (system is inactive)

Not on record

Phone not on record

STOCKTON, CA 95212