Drinking Water Compliance OS

Covelo, 09

Round Valley Piner 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)
090605015
System type
Community Water System
Population served
409
Service connections
115
Ownership
Native American tribal
Water source
groundwater (wells)

Violation history

  • Monitoring, Regular

    Nitrate

    January 1, 2025 – December 31, 2025

    Archived
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    December 1, 2023 – January 17, 2024

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    November 1, 2023 – January 17, 2024

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    October 1, 2023 – November 16, 2023

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    August 1, 2023 – October 2, 2023

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    June 1, 2023 – July 18, 2023

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    April 1, 2023 – June 5, 2023

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    February 1, 2023 – March 22, 2023

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Dalapon

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    OXAMYL

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    2,4-D

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Nitrate

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    ETHYLENE DIBROMIDE

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Endothall

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Carbofuran

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Glyphosate

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Diquat

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Picloram

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Dinoseb

    January 1, 2023 – December 31, 2025

    Archived
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    December 1, 2022 – February 3, 2023

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    November 1, 2022 – November 30, 2022

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    October 1, 2022 – October 31, 2022

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2022 – December 31, 2022

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    September 1, 2022 – September 30, 2022

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    September 1, 2022 – October 19, 2022

    Resolved
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    August 31, 2022

    Unaddressed
  • Public Notification Violation for NPDWR Violation

    Public Notice

    August 31, 2022 – June 30, 2023

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    August 1, 2022 – October 19, 2022

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    July 1, 2022 – October 19, 2022

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    May 31, 2022 – June 30, 2023

    Resolved
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    May 31, 2022 – April 11, 2024

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2022 – June 13, 2022

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2022 – December 31, 2022

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2021 – December 1, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    August 1, 2021 – May 25, 2022

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    August 1, 2021 – August 31, 2021

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2021 – September 30, 2021

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    December 1, 2020 – February 11, 2021

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    October 1, 2020 – February 11, 2021

    Resolved
  • Monitoring, Routine (IDSE)

    TTHM

    January 1, 2020 – December 31, 2022

    Resolved
  • Monitoring, Regular

    Dinoseb

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Regular

    Dalapon

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Regular

    Picloram

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Regular

    LASSO

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2020 – December 31, 2020

    Resolved
  • Monitoring, Regular

    Atrazine

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Regular

    2,3,7,8-TCDD

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Regular

    Carbofuran

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Routine (IDSE)

    Total Haloacetic Acids (HAA5)

    January 1, 2020 – December 31, 2022

    Resolved
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Regular

    OXAMYL

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Regular

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Regular

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Regular

    ETHYLENE DIBROMIDE

    January 1, 2020 – December 23, 2022

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

    Lead and Copper Rule

    January 1, 2020 – September 14, 2023

    Resolved
  • Monitoring, Regular

    2,4-D

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Regular

    Simazine

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Regular

    HEXACHLOROBENZENE

    January 1, 2020 – December 23, 2022

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 2014 – November 30, 2014

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2013 – December 31, 2013

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    August 1, 2012 – August 31, 2012

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

    Lead and Copper Rule

    July 1, 2012 – March 21, 2013

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

    Lead and Copper Rule

    January 1, 2012 – March 21, 2013

    Resolved
  • Monitoring, Regular

    Combined Uranium

    April 1, 2011 – June 30, 2011

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    April 1, 2011 – June 30, 2011

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    April 1, 2011 – June 30, 2011

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

    Lead and Copper Rule

    January 1, 2011 – November 21, 2011

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    January 1, 2011 – March 31, 2011

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    January 1, 2011 – March 31, 2011

    Resolved
  • Monitoring, Regular

    Combined Uranium

    January 1, 2011 – March 31, 2011

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    October 1, 2010 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Combined Uranium

    October 1, 2010 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    October 1, 2010 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    July 1, 2010 – September 30, 2010

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

    Lead and Copper Rule

    July 1, 2010 – November 21, 2011

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2010 – August 24, 2011

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    Combined Uranium

    July 1, 2010 – September 30, 2010

    Resolved
  • Monitoring, Regular

    Combined Uranium

    April 1, 2010 – June 30, 2010

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    April 1, 2010 – June 30, 2010

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    April 1, 2010 – June 30, 2010

    Resolved
  • Monitoring, Regular

    Combined Uranium

    January 1, 2010 – March 31, 2010

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

    Lead and Copper Rule

    January 1, 2010 – November 21, 2011

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2010 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    January 1, 2010 – March 31, 2010

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2010 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    January 1, 2010 – March 31, 2010

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2010 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    October 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    October 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    Combined Uranium

    October 1, 2009 – December 31, 2009

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2009 – September 9, 2011

    Resolved
  • Monitoring, Regular

    Combined Uranium

    July 1, 2009 – September 30, 2009

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    July 1, 2009 – September 30, 2009

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

    Lead and Copper Rule

    July 1, 2009 – November 21, 2011

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    July 1, 2009 – September 30, 2009

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    April 1, 2009 – June 30, 2009

    Resolved
  • Monitoring, Regular

    Combined Uranium

    April 1, 2009 – June 30, 2009

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    April 1, 2009 – June 30, 2009

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2009 – December 31, 2009

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    January 1, 2009 – March 31, 2009

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    January 1, 2009 – March 31, 2009

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    Combined Uranium

    January 1, 2009 – March 31, 2009

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    October 1, 2008 – December 31, 2008

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    October 1, 2008 – December 31, 2008

    Resolved
  • Monitoring, Regular

    Combined Uranium

    October 1, 2008 – December 31, 2008

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2008 – August 24, 2011

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    April 1, 2008 – June 30, 2008

    Resolved
  • Monitoring, Regular

    Combined Uranium

    April 1, 2008 – June 30, 2008

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    April 1, 2008 – June 30, 2008

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    DICHLOROMETHANE

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Selenium

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Barium

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Antimony, Total

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Benzene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Toluene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Mercury

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Combined Uranium

    January 1, 2008 – March 31, 2008

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Styrene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Cadmium

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Chromium

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Xylenes, Total

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    January 1, 2008 – March 31, 2008

    Resolved
  • Monitoring, Regular

    Thallium, Total

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    January 1, 2008 – March 31, 2008

    Resolved
  • Monitoring, Regular

    Fluoride

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Beryllium, Total

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    October 1, 2007 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Combined Uranium

    October 1, 2007 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    October 1, 2007 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2007 – December 31, 2007

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 2004 – November 30, 2004

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    October 1, 2004 – October 31, 2004

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    August 1, 2004 – August 31, 2004

    Resolved
  • Monitoring, Regular

    Toluene

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Barium

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Chromium

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    CYANIDE

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Fluoride

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Mercury

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Selenium

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Antimony, Total

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Thallium, Total

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Endrin

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Methoxychlor

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Toxaphene

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Dalapon

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Diquat

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Endothall

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Glyphosate

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) adipate

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    OXAMYL

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Simazine

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Picloram

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Dinoseb

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Carbofuran

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Atrazine

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    LASSO

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    2,3,7,8-TCDD

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Heptachlor

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    2,4-D

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Benzo(a)pyrene

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    ETHYLENE DIBROMIDE

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Xylenes, Total

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Chlordane

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    DICHLOROMETHANE

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Benzene

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Styrene

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    August 1, 2003 – August 31, 2003

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    July 1, 2003 – July 31, 2003

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    February 1, 2003 – February 28, 2003

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2003 – December 31, 2003

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    January 1, 2003 – January 31, 2003

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 2002 – December 31, 2002

    Resolved
  • Monitoring, Repeat Minor (TCR)

    Coliform (TCR)

    November 1, 2002 – November 30, 2002

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2002 – November 17, 2005

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2002 – December 31, 2002

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    December 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    DICHLOROMETHANE

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Chlordane

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Xylenes, Total

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    ETHYLENE DIBROMIDE

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Benzo(a)pyrene

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    HEXACHLOROBENZENE

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    2,4-D

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Barium

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Styrene

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Toluene

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Benzene

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Heptachlor

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    2,3,7,8-TCDD

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    LASSO

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Atrazine

    January 1, 2001 – January 31, 2001

    Resolved
  • Monitoring, Regular

    Carbofuran

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Dinoseb

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Picloram

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Simazine

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    OXAMYL

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) adipate

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Glyphosate

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Endothall

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Diquat

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Dalapon

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Toxaphene

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Methoxychlor

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Endrin

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Thallium, Total

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Beryllium, Total

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Antimony, Total

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Selenium

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Mercury

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Fluoride

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    CYANIDE

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Chromium

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Cadmium

    January 1, 2001 – December 31, 2001

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2000 – November 17, 2005

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    January 1, 2000 – December 31, 2000

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    August 1, 1999 – August 31, 1999

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 1999 – December 31, 1999

    Resolved
  • Initial Tap Sampling for Pb and Cu

    Lead and Copper Rule

    January 1, 1999 – May 14, 2005

    Resolved
  • Monitoring, Regular

    Radium-226

    January 1, 1998 – December 31, 1998

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    September 1, 1996 – September 30, 1996

    Resolved
  • Maximum Contaminant Level Violation, Acute (TCR)

    Health-based

    Coliform (TCR)

    August 1, 1996 – August 31, 1996

    Resolved
  • Monitoring, Repeat Minor (TCR)

    Coliform (TCR)

    August 1, 1996 – August 31, 1996

    Resolved
  • Initial Tap Sampling for Pb and Cu

    Lead and Copper Rule

    July 1, 1996 – February 4, 2005

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    June 1, 1996 – June 30, 1996

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    May 1, 1996 – May 31, 1996

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    February 1, 1996 – February 29, 1996

    Resolved
  • Monitoring, Regular

    Methoxychlor

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    ETHYLENE DIBROMIDE

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Asbestos

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    January 1, 1996 – January 31, 1996

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    2,4-D

    January 1, 1996 – December 31, 1996

    Resolved
  • Initial Tap Sampling for Pb and Cu

    Lead and Copper Rule

    January 1, 1996 – May 14, 2005

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Total Polychlorinated Biphenyls (PCB)

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Atrazine

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Toxaphene

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Carbofuran

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Chlordane

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Heptachlor

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    LASSO

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    July 1, 1992 – July 31, 1992

    Resolved
  • Monitoring, Repeat Minor (TCR)

    Coliform (TCR)

    January 1, 1992 – January 31, 1992

    Resolved
  • Monitoring, Repeat Minor (TCR)

    Coliform (TCR)

    June 1, 1991 – June 30, 1991

    Resolved
  • Maximum Contaminant Level Violation, Acute (TCR)

    Health-based

    Coliform (TCR)

    April 1, 1991 – April 30, 1991

    Resolved
  • Maximum Contaminant Level Violation, Acute (TCR)

    Health-based

    Coliform (TCR)

    March 1, 1991 – March 31, 1991

    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

Contact

Round Valley Tribal Council

7079836126

Covelo, CA 95428