Drinking Water Compliance OS

HERMISTON, OR · Umatilla County

CHART SUBDIVISION Water System

Current status

No open violations on record as of July 4, 2026.

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 Oregon’s official records. Always confirm current status with Oregon before making decisions based on this information.

System facts

System ID (PWSID)
OR4101415
System type
Community Water System
Population served
125
Service connections
33
Ownership
privately owned
Water source
groundwater (wells)

Violation history

  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2024 – July 5, 2024

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    March 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    January 1, 2020 – December 31, 2025

    Archived
  • Monitoring, Regular

    Combined Uranium

    January 1, 2020 – December 31, 2025

    Archived
  • Maximum Contaminant Level Violation, E. coli (RTCR)

    Health-based

    Revised Total Coliform Rule

    November 1, 2017 – November 30, 2017

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    May 1, 2017 – May 31, 2017

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    February 6, 2017 – February 6, 2017

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    January 1, 2017 – December 31, 2025

    Archived
  • Monitoring, Source Water (GWR)

    E. COLI

    December 25, 2016 – February 6, 2017

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    March 1, 2016 – March 31, 2016

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    December 1, 2015 – December 31, 2015

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    November 7, 2014 – December 20, 2014

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    November 1, 2014 – November 30, 2014

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

    Lead and Copper Rule

    January 1, 2011 – September 28, 2012

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2011 – December 31, 2011

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    August 1, 2009 – August 31, 2009

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    June 1, 2007 – June 30, 2007

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    February 1, 2007 – February 28, 2007

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2007 – December 31, 2007

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    August 1, 2006 – August 31, 2006

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    November 1, 2005 – November 30, 2005

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Toxaphene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Dalapon

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Diquat

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Glyphosate

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Dinoseb

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Heptachlor

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    HEXACHLOROBENZENE

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Chlordane

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Benzene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Toluene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    August 1, 2004 – August 31, 2004

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    January 1, 2004 – January 31, 2004

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    October 19, 2003 – March 2, 2004

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    January 1, 2003 – January 31, 2003

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    December 1, 2002 – December 31, 2002

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 2002 – November 30, 2002

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    October 1, 2002 – October 31, 2002

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Benzene

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    DICHLOROMETHANE

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Styrene

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Toluene

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    2,4-D

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    LASSO

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Atrazine

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Benzo(a)pyrene

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Chlordane

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Dalapon

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Diquat

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Endothall

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Endrin

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    ETHYLENE DIBROMIDE

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Glyphosate

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    HEXACHLOROBENZENE

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Methoxychlor

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Picloram

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Toxaphene

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    OXAMYL

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Antimony, Total

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Beryllium, Total

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    CYANIDE

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Thallium, Total

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    July 1, 1997 – July 31, 1997

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    May 1, 1997 – May 31, 1997

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    April 1, 1997 – April 30, 1997

    Resolved
  • Monitoring, Repeat Minor (TCR)

    Coliform (TCR)

    April 1, 1997 – April 30, 1997

    Resolved
  • Initial Tap Sampling for Pb and Cu

    Lead and Copper Rule

    January 1, 1996 – June 12, 2000

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 1995 – December 31, 1995

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    April 1, 1995 – April 30, 1995

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    March 1, 1995 – March 31, 1995

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    January 1, 1995 – January 31, 1995

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 1994 – December 31, 1994

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    August 1, 1994 – August 31, 1994

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    June 1, 1994 – June 30, 1994

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    September 1, 1993 – September 30, 1993

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 1992 – December 31, 1992

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    September 1, 1992 – September 30, 1992

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    June 1, 1992 – June 30, 1992

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    June 1, 1991 – June 30, 1991

    Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Contact

CHART SUBDIVISION

541-567-0163

HERMISTON, OR 97838