Drinking Water Compliance OS

RAINIER, OR · Columbia County

WESTERN HILLS MH ESTATES Water System

Current status

2 items on record are open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

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)
OR4101172
System type
Community Water System
Population served
375
Service connections
109
Ownership
privately owned
Water source
groundwater (wells)

Violation history

  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    December 1, 2025 – December 31, 2025

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

    Lead and Copper Rule

    October 1, 2025

    Unaddressed
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    September 1, 2025 – September 30, 2025

    Archived
  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    Groundwater Rule

    June 1, 2025 – June 30, 2025

    Archived
  • Public Notification Violation for NPDWR Violation

    Public Notice

    December 6, 2024 – March 10, 2025

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    October 1, 2024 – November 14, 2024

    Resolved
  • Treatment Technique (SWTR and GWR)

    Health-based

    Groundwater Rule

    September 1, 2024 – September 30, 2024

    Resolved
  • Treatment Technique (SWTR and GWR)

    Health-based

    Groundwater Rule

    January 1, 2024 – January 31, 2024

    Resolved
  • Treatment Technique (SWTR and GWR)

    Health-based

    Groundwater Rule

    July 1, 2023 – July 31, 2023

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    March 5, 2023 – March 21, 2023

    Resolved
  • Failure To Address Contamination

    Health-based

    Groundwater Rule

    October 22, 2022 – May 1, 2023

    Resolved
  • Public Notification Violation without NPDWR Violation

    Public Notice

    July 2, 2022 – March 21, 2023

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    April 18, 2022 – June 20, 2022

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2021 – December 31, 2021

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

    Lead and Copper Rule

    October 1, 2017 – September 25, 2020

    Resolved
  • Failure to Conduct Assessment Monitoring

    COLIPHAGE

    January 1, 2017 – December 31, 2017

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    October 1, 2016 – September 30, 2019

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    October 1, 2016 – September 30, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    January 24, 2016 – December 24, 2015

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    December 16, 2015 – December 24, 2015

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

    Lead and Copper Rule

    October 1, 2014 – January 15, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    October 1, 2014 – October 31, 2014

    Resolved
  • Failure to Conduct Assessment Monitoring

    COLIPHAGE

    January 1, 2013 – December 31, 2013

    Resolved
  • Failure to Conduct Assessment Monitoring

    COLIPHAGE

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2012 – December 31, 2012

    Archived
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    October 1, 2011 – October 31, 2011

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2011 – December 31, 2013

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

    Lead and Copper Rule

    January 1, 2011 – July 7, 2011

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    November 1, 2010

    Unaddressed
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    June 1, 2010 – June 30, 2010

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    September 1, 2009 – September 30, 2009

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 2008 – December 31, 2008

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    October 1, 2008 – October 31, 2008

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2008 – December 31, 2008

    Archived
  • Monitoring, Regular

    Arsenic

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Nitrate

    January 1, 2007 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    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, Regular

    Ethylbenzene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Styrene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Endrin

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Methoxychlor

    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

    Endothall

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Glyphosate

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) adipate

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    OXAMYL

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Simazine

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Picloram

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Dinoseb

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Carbofuran

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Atrazine

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    LASSO

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Heptachlor

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    2,4-D

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    HEXACHLOROBENZENE

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Benzo(a)pyrene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    ETHYLENE DIBROMIDE

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Chlordane

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Xylenes, Total

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    DICHLOROMETHANE

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2002 – December 31, 2002

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2002 – December 31, 2002

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2002 – December 31, 2002

    Resolved
  • Monitoring, Repeat Minor (TCR)

    Coliform (TCR)

    May 1, 2001 – May 31, 2001

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 1995 – September 30, 1995

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    September 1, 1995 – September 30, 1995

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    September 1, 1995 – September 30, 1995

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    August 1, 1995 – August 31, 1995

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    September 1, 1992 – September 30, 1992

    Resolved
  • Monitoring, Repeat Minor (TCR)

    Coliform (TCR)

    April 1, 1992 – April 30, 1992

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 1991 – December 31, 1991

    Archived
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 1991 – November 30, 1991

    Resolved

Archived 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

Enforcement actions

Contact

WESTERN HILLS MH ESTATES

503-410-9372

RAINIER, OR 97048