Drinking Water Compliance OS

HOLLISTER, CA · San Benito County

VALENZUELA WATER SYSTEM 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)
CA3500527
System type
Community Water System
Population served
55
Service connections
17
Ownership
privately owned
Water source
groundwater (wells)

Violation history

  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2009 – August 9, 2010

    Resolved
  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate

    July 1, 2007 – September 30, 2007

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2002 – May 12, 2003

    Resolved
  • Monitoring, Regular

    Asbestos

    October 1, 2000 – October 31, 2000

    Resolved
  • Monitoring, Regular

    Benzene

    October 1, 2000 – October 31, 2000

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Nitrate

    January 1, 2000 – January 31, 2001

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    August 1, 1996 – August 31, 1996

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    July 1, 1996 – July 31, 1996

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    May 1, 1996 – May 31, 1996

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    March 1, 1995 – March 31, 1995

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Nitrate

    May 1, 1991 – May 20, 1991

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    October 1, 1981 – September 30, 1982

    Archived

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

Enforcement actions

Contact

RIOS, CARMELITA

831-524-8811

HOLLISTER, CA 95024