Drinking Water Compliance OS

MORAGA, CA · Contra Costa County

BOLLINGER CANYON Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of February 1, 2003. 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 Contra Costa 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)
CA0707637
System type
Community Water System
Population served
30
Service connections
5
Ownership
not on record
Water source
groundwater (wells)

Violation history

  • Notification, Public

    No contaminant on record

    July 1, 1984 – July 31, 1984

    Archived
  • Notification, Public

    No contaminant on record

    June 1, 1984 – June 30, 1984

    Archived
  • Notification, Public

    No contaminant on record

    November 1, 1983 – November 30, 1983

    Archived
  • Notification, Public

    No contaminant on record

    October 1, 1983 – October 31, 1983

    Archived
  • Notification, Public

    No contaminant on record

    September 1, 1983 – September 30, 1983

    Archived
  • Notification, Public

    No contaminant on record

    May 1, 1983 – May 31, 1983

    Archived
  • Notification, Public

    No contaminant on record

    February 1, 1983 – February 28, 1983

    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

MORAGA, CA 94556