Public Water Partners

WARRENTON, OR · Clatsop County

WARRENTON, CITY OF Water System

Consumer Confidence Report status

WARRENTON, CITY OF must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for WARRENTON, CITY OF.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
OR4100932
System type
Community Water System
Population served
9,100
Service connections
3,737
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

WARRENTON, CITY OF is one of 63 community water systems in Oregon in the 3,301 to 10,000 people size category, serving 9,100 people from surface water.

As of August 1, 2026, its federal record holds 55 entries between 1976 and 2025, all of which EPA lists as closed.

Of the 55, 50 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, synthetic organic chemicals, and the Total Coliform Rules.

Violation history

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2025 – July 17, 2025

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Total Haloacetic Acids (HAA5)

    October 1, 2013 – December 31, 2013

    Resolved

  • Monitoring and Reporting (DBP)

    —

    TTHM

    October 1, 2013 – December 31, 2013

    Resolved

  • Monitoring of Treatment (SWTR-Filter)

    —

    Surface Water Treatment Rule

    June 1, 2009 – June 30, 2009

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2008 – December 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2008 – December 31, 2008

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2008 – December 31, 2008

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2008 – December 31, 2008

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2008 – December 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2008 – December 31, 2008

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2008 – December 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 2008 – December 31, 2008

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2008 – December 31, 2008

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2008 – December 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2008 – December 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2008 – December 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 2008 – December 31, 2008

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Total Haloacetic Acids (HAA5)

    July 1, 2007 – September 30, 2007

    Resolved

  • Monitoring and Reporting (DBP)

    —

    TTHM

    July 1, 2007 – September 30, 2007

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    March 1, 2007 – March 31, 2007

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    February 1, 2007 – February 28, 2007

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    November 1, 2006 – November 30, 2006

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    October 1, 2006 – October 31, 2006

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    August 1, 2006 – August 31, 2006

    Resolved

  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    October 1, 2004 – December 31, 2004

    Resolved

  • Monitoring of Treatment (SWTR-Filter)

    —

    Surface Water Treatment Rule

    April 1, 2004 – April 30, 2004

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2004 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2004 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2004 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 2004 – December 31, 2004

    Resolved

  • Consumer Confidence Report Inadequate Reporting

    —

    Consumer Confidence Rule

    October 19, 2003 – November 24, 2004

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2003 – November 18, 2004

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2002 – November 18, 2004

    Resolved

  • Monitoring, Regular

    —

    ETHYLENE DIBROMIDE

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Diquat

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    November 1, 1999 – November 30, 1999

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    September 1, 1999 – September 30, 1999

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 1999 – December 31, 2001

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    September 1, 1998 – September 30, 1998

    Resolved

  • Monitoring of Treatment (SWTR-Filter)

    —

    Surface Water Treatment Rule

    August 1, 1995 – August 31, 1995

    Resolved

  • Monitoring of Treatment (SWTR-Filter)

    —

    Surface Water Treatment Rule

    July 1, 1995 – July 31, 1995

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    September 1, 1994 – September 30, 1994

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    March 1, 1993 – March 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    June 1, 1976 – May 31, 1980

    Archived

  • Monitoring, Regular

    —

    Combined Radium (-226 and -228)

    June 1, 1976 – May 31, 1980

    Archived

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

Enforcement actions

Common questions

Is WARRENTON, CITY OF required to publish a Consumer Confidence Report?

Yes. WARRENTON, CITY OF is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is WARRENTON, CITY OF’s next Consumer Confidence Report due?

WARRENTON, CITY OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does WARRENTON, CITY OF have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for WARRENTON, CITY OF.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

WARRENTON, CITY OF

503-738-7809

WARRENTON, OR 97146