Redwood Valley, 09

Redwood Valley Rancheria Water System

Current status

1 open health-based violation on record as of July 4, 2026. 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 EPA Region 9’s official records. Always confirm current status with EPA Region 9 before making decisions based on this information.

System facts

System ID (PWSID): 090605118
System type: Community Water System
Population served: 152
Service connections: 33
Ownership: Native American tribal
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
December 1, 2025 – December 31, 2025
Archived
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2025 – December 31, 2025
Archived
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2024 – June 30, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2024 – June 30, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2023 – December 31, 2023
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – January 4, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2023 – September 30, 2023
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
May 28, 2023
Unaddressed
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
May 1, 2023 – May 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2023 – June 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2023 – March 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
December 1, 2021 – December 31, 2021
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
January 1, 2017 – January 31, 2017
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2015 – September 30, 2015
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
January 1, 2015 – March 31, 2015
Resolved
Monitoring, Routine (IDSE)
—
TTHM
January 1, 2015 – March 31, 2015
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 2012 – July 31, 2012
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2012 – December 31, 2012
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2011 – July 31, 2011
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
March 1, 2011 – March 31, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2010 – December 31, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2010 – October 31, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2010 – March 31, 2010
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2010 – January 31, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2008 – September 30, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2008 – February 29, 2008
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 2007 – February 27, 2009
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2007 – February 27, 2009
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 2007 – February 27, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2006 – August 31, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – February 27, 2009
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2005 – February 27, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2005 – June 30, 2005
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2004 – January 31, 2004
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2003 – November 30, 2003
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2003 – February 28, 2003
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2001 – March 31, 2001
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2000 – December 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2000 – October 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 1998 – October 31, 1998
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1997 – August 31, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1997 – June 30, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1996 – December 31, 1996
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
November 1, 1996 – November 30, 1996
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 1996 – February 27, 2009
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
May 1, 1996 – May 31, 1996
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
April 1, 1996 – April 30, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 1996 – March 31, 1996
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 1996 – March 23, 2007
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
January 1, 1996 – January 31, 1996
Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Period	Violation	Contaminant / rule	Health-based	Status
December 1, 2025 – December 31, 2025	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Archived
October 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Archived
June 1, 2024 – June 30, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2023 – January 4, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2023 – September 30, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
May 28, 2023	Failure To Address Deficiency	Groundwater Rule	Health-based	Unaddressed
May 1, 2023 – May 31, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2023 – March 31, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
December 1, 2021 – December 31, 2021	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2017 – January 31, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
September 1, 2015 – September 30, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2015 – March 31, 2015	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2015 – March 31, 2015	Monitoring, Routine (IDSE)	TTHM	—	Resolved
July 1, 2012 – July 31, 2012	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2011 – July 31, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 2011 – March 31, 2011	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
December 1, 2010 – December 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2010 – October 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 2010 – March 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2010 – January 31, 2010	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
September 1, 2008 – September 30, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 2008 – February 29, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2007 – February 27, 2009	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
July 1, 2007 – February 27, 2009	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2007 – February 27, 2009	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
August 1, 2006 – August 31, 2006	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2006 – February 27, 2009	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2005 – February 27, 2009	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 1, 2005 – June 30, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2004 – January 31, 2004	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
November 1, 2003 – November 30, 2003	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
February 1, 2003 – February 28, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 2001 – March 31, 2001	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 2000 – December 31, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2000 – October 31, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 1998 – October 31, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 1997 – August 31, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 1997 – June 30, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 1996 – December 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 1996 – November 30, 1996	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1996 – February 27, 2009	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
May 1, 1996 – May 31, 1996	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Resolved
April 1, 1996 – April 30, 1996	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 1996 – March 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1996 – March 23, 2007	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 1996 – January 31, 1996	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Enforcement actions

January 12, 2026Federal Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 1, 2024Federal Compliance achieved2 linked violations
January 25, 2024Federal Compliance achieved1 linked violation
January 4, 2024Federal Compliance achieved1 linked violation
October 16, 2023Federal Compliance achieved1 linked violation
July 24, 2023Federal Compliance achieved3 linked violations
June 29, 2023Federal Compliance achieved1 linked violation
February 10, 2022Federal Compliance achieved1 linked violation
February 18, 2017Federal Compliance achieved1 linked violation
October 31, 2015Federal Compliance achieved1 linked violation
August 25, 2015Federal Compliance achieved1 linked violation
August 25, 2015Federal Compliance achieved1 linked violation
October 29, 2013Federal Compliance achieved1 linked violation
October 29, 2013Federal Compliance achieved1 linked violation
February 26, 2013Federal Compliance achieved1 linked violation
July 12, 2012Federal Compliance achieved1 linked violation
July 12, 2012Federal Compliance achieved1 linked violation
December 2, 2011Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
November 21, 2011Federal Compliance achieved1 linked violation
November 21, 2011Federal Compliance achieved1 linked violation
November 16, 2011Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
August 18, 2011Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
August 15, 2011Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 12, 2011Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
May 11, 2011Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
March 9, 2011Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 9, 2011Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
January 20, 2011Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
January 19, 2011Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
January 4, 2011Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
January 4, 2011Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
November 5, 2010Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
September 30, 2010Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
August 23, 2010Federal Compliance achieved1 linked violation
August 17, 2010Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
August 17, 2010Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
July 7, 2010Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
June 24, 2010Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
May 21, 2010Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 13, 2010Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 6, 2010Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
March 29, 2010Federal Compliance achieved1 linked violation
January 14, 2010Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
January 5, 2010Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
December 18, 2009Federal Compliance achieved1 linked violation
December 18, 2009Federal Compliance achieved1 linked violation
December 3, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
November 30, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
November 6, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
November 3, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
November 3, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
August 25, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
July 28, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
June 25, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
May 20, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
May 14, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
March 31, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
March 19, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
March 18, 2009Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
March 5, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
February 27, 2009Federal Compliance achieved1 linked violation
February 27, 2009Federal Compliance achieved1 linked violation
February 27, 2009Federal Compliance achieved1 linked violation
February 27, 2009Federal Compliance achieved1 linked violation
February 27, 2009Federal Compliance achieved1 linked violation
February 27, 2009Federal Compliance achieved1 linked violation
February 27, 2009Federal Compliance achieved1 linked violation
February 24, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
February 5, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
January 8, 2009Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
December 16, 2008Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
November 4, 2008Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
October 15, 2008Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
July 21, 2008Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
July 1, 2008Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 25, 2008Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
March 12, 2008Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 7, 2008Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 23, 2007Federal Compliance achieved1 linked violation
March 7, 2007Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
February 14, 2007Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
December 15, 2006Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
October 16, 2006Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
September 13, 2006Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 13, 2006Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 11, 2006Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
February 23, 2006Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
February 23, 2006Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
February 23, 2006Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
February 7, 2006Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
January 10, 2006Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
December 20, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
December 6, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
December 2, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
November 16, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
November 15, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
September 8, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
August 11, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
July 20, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
July 20, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
July 12, 2005Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 6, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
July 6, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
June 20, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
May 18, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
May 15, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
May 10, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
April 21, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
April 18, 2005Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record

Contact

Redwood Valley Rancheria

7074850361

Redwood Valley, CA 95470