Drinking Water Compliance OS

PAUMA VALLEY, CA · San Diego County

RANCHO ESTATES MUTUAL WATER CO. 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)
CA3700936
System type
Community Water System
Population served
200
Service connections
92
Ownership
privately owned
Water source
groundwater (wells)

Violation history

  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate-Nitrite

    April 1, 2018 – June 30, 2018

    Resolved
  • Monitoring, Regular

    Combined Uranium

    January 1, 2016 – January 31, 2016

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2016 – January 31, 2016

    Resolved
  • Monitoring, Regular

    Benzene

    January 1, 2016 – January 31, 2016

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    June 1, 2013 – June 30, 2013

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    May 1, 2013 – May 31, 2013

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    April 3, 2013 – December 2, 2014

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    March 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    February 1, 2010 – February 28, 2010

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2008 – December 20, 2008

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 2007 – December 31, 2007

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    October 1, 2007 – October 31, 2007

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    September 1, 2005 – September 30, 2005

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    May 1, 2005 – May 31, 2005

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    February 1, 2005 – February 28, 2005

    Resolved
  • Notification, Public

    No contaminant on record

    November 1, 1982 – November 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

GRAZIANO, BOBBY

760-297-6307

PAUMA VALLEY, CA 92061