Drinking Water Compliance OS

SAN BERNARDINO, CA · San Bernardino County

CSA 70 W-4 PIONEERTOWN 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)
CA3600196
System type
Community Water System
Population served
470
Service connections
127
Ownership
local government
Water source
groundwater (wells)

Violation history

  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2018 – December 31, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Fluoride

    October 1, 2018 – December 31, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2017 – December 31, 2017

    Resolved
  • Notification, Public

    No contaminant on record

    December 1, 1982 – December 31, 1982

    Archived
  • Notification, Public

    No contaminant on record

    November 1, 1982 – November 30, 1982

    Archived
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    October 1, 1981 – September 30, 1982

    Archived
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    October 30, 1980 – October 29, 1981

    Archived
  • Notification, Public

    No contaminant on record

    July 30, 1980 – October 29, 1980

    Archived
  • Notification, Public

    No contaminant on record

    February 28, 1980 – April 27, 1980

    Archived
  • Notification, Public

    No contaminant on record

    November 30, 1979 – January 29, 1980

    Archived

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

Enforcement actions

Contact

BEYELER, JARED

760-962-1505

SAN BERNARDINO, CA 92415-0450