Public Water Partners

NAPA, CA · Napa County

R RANCH AT THE LAKE Water System

Consumer Confidence Report status

R RANCH AT THE LAKE must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show 1 open health-based violation for R RANCH AT THE LAKE, alongside 1 other open item.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
CA2800593
System type
Community Water System
Population served
28
Service connections
16
Ownership
privately owned
Water source
groundwater (wells)

R RANCH AT THE LAKE is one of 3,951 community water systems in California in the 500 or fewer people size category, serving 28 people from groundwater.

As of August 1, 2026, its federal record holds 13 entries between 1980 and 2024, of which 1 health-based item remains open, alongside 1 other open entry.

Of the 13, 10 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules, the Lead and Copper Rule, and the Consumer Confidence Rule.

Violation history

  • LSL Inventory

    Health-based

    LEAD AND COPPER RULE REVISIONS

    October 17, 2024

    Unaddressed
  • LSL Reporting

    LEAD AND COPPER RULE REVISIONS

    October 17, 2024

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

    Lead and Copper Rule

    October 1, 2024 – March 25, 2025

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2017 – December 5, 2017

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 2012 – November 30, 2012

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2012 – March 14, 2018

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    May 1, 2012 – May 31, 2012

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    April 1, 2012 – April 30, 2012

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    July 1, 2011 – July 31, 2011

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    July 1, 2011 – September 30, 2011

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 2006 – December 31, 2006

    Resolved
  • 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

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Common questions

Is R RANCH AT THE LAKE required to publish a Consumer Confidence Report?

Yes. R RANCH AT THE LAKE is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is R RANCH AT THE LAKE’s next Consumer Confidence Report due?

R RANCH AT THE LAKE’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does R RANCH AT THE LAKE have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 1 open health-based violation for R RANCH AT THE LAKE, alongside 1 other open item.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

HANKES, BRANDON

707-252-0140

NAPA, CA 94558