Drinking Water Compliance OS

SAN JUAN CAPISTRANO, CA · Siskiyou County

SHADOW MOUNTAIN MHP 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)
CA4700803
System type
Community Water System
Population served
126
Service connections
73
Ownership
privately owned
Water source
groundwater (wells)

Violation history

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    October 1, 1993 – November 30, 1993

    Resolved
  • Notification, Public

    No contaminant on record

    August 1, 1984 – August 31, 1984

    Archived
  • Notification, Public

    No contaminant on record

    July 1, 1984 – July 31, 1984

    Archived
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    October 30, 1980 – October 29, 1981

    Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

No enforcement actions on record for this system.

Contact

HATHAWAY, STEVE

949-388-8191

SAN JUAN CAPISTRANO, CA 92693