Is PRAIRIE CITY required to publish a Consumer Confidence Report?

Yes. PRAIRIE CITY 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 PRAIRIE CITY’s next Consumer Confidence Report due?

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

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.

PRAIRIE CITY, OR · Grant County

PRAIRIE CITY Water System

Consumer Confidence Report status

PRAIRIE CITY 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 PRAIRIE CITY.

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): OR4100673
System type: Community Water System
Population served: 841
Service connections: 443
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

PRAIRIE CITY is one of 203 community water systems in Oregon in the 501 to 3,300 people size category, serving 841 people from surface water.

As of August 1, 2026, its federal record holds 41 entries between 1976 and 2025, all of which EPA lists as closed.

Of the 41, 35 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 the Surface Water Treatment Rules, volatile organic chemicals, and the Total Coliform Rules.

Violation history

Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2025 – December 31, 2025
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2025 – June 30, 2025
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2025 – June 30, 2025
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2025 – June 30, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2024 – July 16, 2024
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2022 – December 31, 2022
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2022 – December 31, 2022
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2022 – December 31, 2022
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2022 – December 31, 2022
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2022 – December 31, 2022
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2022 – December 31, 2022
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2022 – December 31, 2022
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2022 – December 31, 2022
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2022 – December 31, 2022
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
May 1, 2016 – May 31, 2016
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2015 – April 30, 2015
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2015 – April 30, 2015
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2013 – June 30, 2013
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2012 – June 30, 2012
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2012 – June 30, 2012
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
May 1, 2011 – May 31, 2011
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2011 – April 30, 2011
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2010 – September 30, 2010
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2010 – September 30, 2010
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2009 – April 30, 2009
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2009 – April 30, 2009
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 2007 – December 31, 2007
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2007 – June 30, 2007
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2007 – June 30, 2007
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2005 – December 31, 2005
Resolved
Failure to Filter (SWTR)
Health-based
Surface Water Treatment Rule
April 1, 2001 – March 6, 2006
Resolved
OCCT/SOWT Study/Recommendation
Health-based
Lead and Copper Rule
July 1, 2000 – November 14, 2005
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
April 1, 1995 – April 30, 1995
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 1992 – December 31, 1992
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 1992 – December 31, 1992
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1992 – August 31, 1992
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1992 – February 29, 1992
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
November 1, 1991 – November 30, 1991
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
November 1, 1991 – November 30, 1991
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
June 1, 1976 – May 31, 1980
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
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)

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
June 1, 2025 – June 30, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
June 1, 2025 – June 30, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
June 1, 2025 – June 30, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2024 – July 16, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
May 1, 2016 – May 31, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Archived
April 1, 2015 – April 30, 2015	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2015 – April 30, 2015	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2012 – June 30, 2012	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2012 – June 30, 2012	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
May 1, 2011 – May 31, 2011	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
April 1, 2011 – April 30, 2011	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2009 – April 30, 2009	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2009 – April 30, 2009	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
December 1, 2007 – December 31, 2007	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
April 1, 2007 – June 30, 2007	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2007 – June 30, 2007	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2005 – December 31, 2005	Monitoring, Regular	Arsenic	—	Resolved
April 1, 2001 – March 6, 2006	Failure to Filter (SWTR)	Surface Water Treatment Rule	Health-based	Resolved
July 1, 2000 – November 14, 2005	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Health-based	Resolved
April 1, 1995 – April 30, 1995	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
December 1, 1992 – December 31, 1992	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
December 1, 1992 – December 31, 1992	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
August 1, 1992 – August 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 1992 – February 29, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 1991 – November 30, 1991	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
November 1, 1991 – November 30, 1991	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Archived
June 1, 1976 – May 31, 1980	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
June 1, 1976 – May 31, 1980	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

March 31, 2026State Compliance achieved2 linked violations
March 29, 2026State Compliance achieved1 linked violation
August 8, 2025State Compliance achieved3 linked violations
July 16, 2024State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved2 linked violations
July 24, 2023State Compliance achieved2 linked violations
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
July 24, 2023State Compliance achieved1 linked violation
November 26, 2018State Compliance achieved1 linked violation
June 21, 2018State Compliance achieved3 linked violations
May 18, 2018State Compliance achieved2 linked violations
October 6, 2015State Compliance achieved2 linked violations
April 9, 2014State Compliance achieved2 linked violations
September 12, 2013State Compliance achieved3 linked violations
September 29, 2012State Compliance achieved2 linked violations
July 30, 2012State Violation/Reminder Notice3 linked violations
August 10, 2011State Public Notification received2 linked violations
June 28, 2011State Violation/Reminder Notice2 linked violations
June 20, 2011State Public Notification requested2 linked violations
May 23, 2011State Violation/Reminder Notice2 linked violations
December 16, 2010State Compliance achieved3 linked violations
October 26, 2010State Violation/Reminder Notice4 linked violations
December 19, 2007State Administrative/Compliance Order with penalty issued1 linked violation
March 6, 2006State Compliance achieved1 linked violation
March 6, 2006State Administrative/Compliance Order with penalty issued1 linked violation
November 14, 2005State Compliance achieved3 linked violations
March 29, 2004State Public Notification received2 linked violations
November 7, 2001State Bilateral Compliance Agreement signed1 linked violation
February 24, 1998State Public Notification received1 linked violation
January 1, 1998State Compliance achievedgeneral compliance action — not tied to a specific violation on record

Common questions

Is PRAIRIE CITY required to publish a Consumer Confidence Report?: Yes. PRAIRIE CITY 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 PRAIRIE CITY’s next Consumer Confidence Report due?: PRAIRIE CITY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does PRAIRIE CITY have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for PRAIRIE CITY.
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

PRAIRIE CITY

541-820-3636

PRAIRIE CITY, OR 97869