Drinking Water Compliance OS

SAN DIMAS, CA · Los Angeles County

SAN DIMAS CANYON IMPROVMENT ASSOCIATION Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of January 28, 2015. 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 Los Angeles 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)
CA1900064
System type
Community Water System
Population served
125
Service connections
68
Ownership
privately owned
Water source
surface water (rivers, lakes, or reservoirs)

Violation history

  • Notification, Public

    No contaminant on record

    August 1, 1984 – August 31, 1984

    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)

_DANA BROWN, MR

Phone not on record

SAN DIMAS, CA 91773