NAPA, CA · Napa County

NAPA RIVER RANCH Water System

Current status

1 open health-based violation on record as of July 4, 2026, alongside 3 other open item(s). See the violation history below for contaminant and status details.

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

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2025
Addressed
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
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – June 4, 2024
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2023 – December 31, 2023
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2021 – June 22, 2021
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2020 – June 22, 2021
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2019
Addressed
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, 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 confirmationUnaddressed 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)

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	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
July 1, 2023 – June 4, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2021 – June 22, 2021	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2020 – June 22, 2021	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2019	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Addressed
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 – 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

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
April 29, 2024State Compliance achieved3 linked violations
April 29, 2024State Administrative/Compliance Order without penalty issued3 linked violations
November 30, 2023State Compliance achieved5 linked violations
November 29, 2023State Administrative/Compliance Order with penalty issued5 linked violations
January 20, 2023State Formal Notice of Violation issued3 linked violations
March 18, 2022State Compliance achieved2 linked violations
January 28, 2022State Administrative/Compliance Order with penalty issued3 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
March 14, 2018State Compliance achieved3 linked violations
April 30, 2016State Compliance achieved1 linked violation
April 15, 2016State Administrative Penalty assessed1 linked violation
January 31, 2012State Compliance achieved2 linked violations
January 13, 2012State Violation/Reminder Notice1 linked violation
February 28, 2001State Compliance achieved2 linked violations

Contact

GIOVANNONI, DAN

707-333-6596

NAPA, CA 94559