Is NAPA RIVER RANCH required to publish a Consumer Confidence Report?

Yes. NAPA RIVER RANCH 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 NAPA RIVER RANCH’s next Consumer Confidence Report due?

NAPA RIVER RANCH’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

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.

NAPA, CA · Napa County

NAPA RIVER RANCH Water System

Consumer Confidence Report status

NAPA RIVER RANCH 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 NAPA RIVER RANCH, alongside 2 other open items.

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): CA2800531
System type: Community Water System
Population served: 70
Service connections: 14
Ownership: privately owned
Water source: groundwater (wells)

NAPA RIVER RANCH is one of 3,951 community water systems in California in the 500 or fewer people size category, serving 70 people from groundwater.

As of August 1, 2026, its federal record holds 21 entries between 1980 and 2025, of which 1 health-based item remains open, alongside 2 other open entries.

Of the 21, 18 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 Lead and Copper Rule, the Total Coliform Rules, and inorganic chemicals.

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2025
Addressed
Monitoring, Regular
—
Nitrate
January 1, 2025 – December 31, 2025
Archived
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2025
Addressed
LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024
Unaddressed
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2023 – April 29, 2024
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
December 1, 2022 – November 30, 2023
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2022 – March 18, 2022
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2021 – December 31, 2021
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2020 – June 22, 2021
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2019 – October 31, 2019
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
July 1, 2019 – July 31, 2019
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2018 – September 30, 2018
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2016 – December 31, 2016
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2011 – December 31, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2001 – January 31, 2001
Resolved
Notification, Public
—
No contaminant on record
September 1, 1984 – September 30, 1984
Archived
Notification, Public
—
No contaminant on record
August 1, 1984 – August 31, 1984
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

Addressed corrective action reported, pending final confirmationArchived closed in EPA's records (typically due to age or a data correction)Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Addressed
January 1, 2025 – December 31, 2025	Monitoring, Regular	Nitrate	—	Archived
January 1, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Addressed
October 17, 2024	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Unaddressed
October 1, 2023 – April 29, 2024	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
December 1, 2022 – November 30, 2023	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2022 – March 18, 2022	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2020 – June 22, 2021	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2019 – October 31, 2019	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2019 – July 31, 2019	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
September 1, 2018 – September 30, 2018	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2016 – December 31, 2016	Monitoring, Regular	Nitrate	—	Resolved
December 1, 2011 – December 31, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2001 – January 31, 2001	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1984 – September 30, 1984	Notification, Public	—	—	Archived
August 1, 1984 – August 31, 1984	Notification, Public	—	—	Archived
October 1, 1981 – September 30, 1982	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
October 30, 1980 – October 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Enforcement actions

March 27, 2026State Administrative/Compliance Order with penalty issued6 linked violations
February 26, 2026State Administrative/Compliance Order with penalty issued5 linked violations
January 30, 2026State Administrative/Compliance Order with penalty issued5 linked violations
November 24, 2025State Administrative/Compliance Order with penalty issued1 linked violation
September 30, 2025State Administrative/Compliance Order with penalty issued1 linked violation
June 30, 2025State Administrative/Compliance Order with penalty issued2 linked violations
February 13, 2025State Administrative/Compliance Order with penalty issued1 linked violation
June 4, 2024State Compliance achieved2 linked violations
November 30, 2023State Compliance achieved5 linked violations
November 29, 2023State Administrative/Compliance Order with penalty issued5 linked violations
September 2, 2022State Compliance achieved2 linked violations
August 3, 2022State Administrative/Compliance Order without penalty issued3 linked violations
March 18, 2022State Compliance achieved2 linked violations
January 28, 2022State Administrative/Compliance Order with penalty issued3 linked violations
February 24, 2021State Administrative/Compliance Order with penalty issued3 linked violations
November 12, 2020State Administrative/Compliance Order without penalty issued2 linked violations
October 31, 2019State Compliance achieved3 linked violations
October 24, 2019State Administrative/Compliance Order with penalty issued5 linked violations
September 25, 2019State Compliance achieved2 linked violations
January 15, 2019State Administrative/Compliance Order without penalty issued1 linked violation
October 15, 2018State Formal Notice of Violation issued2 linked violations
April 30, 2016State Compliance achieved1 linked violation
April 15, 2016State Administrative Penalty assessed1 linked violation
January 30, 2016Federal Compliance achieved5 linked violations
January 31, 2012State Compliance achieved2 linked violations
January 13, 2012State Violation/Reminder Notice1 linked violation
February 28, 2001State Compliance achieved2 linked violations

Common questions

Is NAPA RIVER RANCH required to publish a Consumer Confidence Report?: Yes. NAPA RIVER RANCH 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 NAPA RIVER RANCH’s next Consumer Confidence Report due?: NAPA RIVER RANCH’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does NAPA RIVER RANCH have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 1 open health-based violation for NAPA RIVER RANCH, alongside 2 other open items.
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

GIOVANNONI, DAN

707-333-6596

NAPA, CA 94559