MONMOUTH, OR · Polk County

MONMOUTH, CITY OF 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): OR4100537
System type: Community Water System
Population served: 11,651
Service connections: 3,027
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2023 – March 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2023 – March 31, 2023
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
August 1, 2021 – August 31, 2021
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
August 1, 2021 – August 31, 2021
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2021 – August 31, 2021
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2021 – October 7, 2021
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
April 1, 2020 – April 30, 2020
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2020 – April 30, 2020
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
January 1, 2020 – June 1, 2020
Resolved
Failure to Filter (SWTR)
Health-based
Surface Water Treatment Rule
November 2, 2015 – February 22, 2019
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
February 1, 2014 – February 28, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2014 – September 30, 2014
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2014 – September 30, 2014
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
January 1, 2013 – January 31, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
January 1, 2000 – December 31, 2000
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 1998 – December 31, 1998
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)

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2023 – March 31, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2023 – March 31, 2023	Monitoring and Reporting (DBP)	TTHM	—	Resolved
August 1, 2021 – August 31, 2021	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
August 1, 2021 – August 31, 2021	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
August 1, 2021 – August 31, 2021	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2021 – October 7, 2021	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
April 1, 2020 – April 30, 2020	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Resolved
April 1, 2020 – April 30, 2020	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2020 – June 1, 2020	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
November 2, 2015 – February 22, 2019	Failure to Filter (SWTR)	Surface Water Treatment Rule	Health-based	Resolved
February 1, 2014 – February 28, 2014	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
January 1, 2014 – September 30, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2014 – September 30, 2014	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2013 – January 31, 2013	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
January 1, 2000 – December 31, 2000	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
December 1, 1998 – December 31, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
June 1, 1976 – May 31, 1980	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
June 1, 1976 – May 31, 1980	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived

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

Enforcement actions

June 5, 2023State Compliance achieved2 linked violations
October 7, 2021State Compliance achieved2 linked violations
October 7, 2021State Compliance achieved1 linked violation
September 15, 2021State Compliance achieved1 linked violation
June 1, 2020State Compliance achieved2 linked violations
June 1, 2020State Compliance achieved1 linked violation
February 22, 2019State Compliance achieved1 linked violation
April 4, 2018State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 7, 2017State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
January 18, 2017State Bilateral Compliance Agreement signed1 linked violation
January 3, 2017State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
October 3, 2016State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
August 12, 2016State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 4, 2015State Compliance achieved2 linked violations
April 2, 2014State Compliance achieved1 linked violation
March 5, 2013State Compliance achieved1 linked violation
February 26, 2013State Violation/Reminder Notice1 linked violation
October 26, 2007State Compliance achieved1 linked violation
March 28, 2001State Compliance achievedgeneral compliance action — not tied to a specific violation on record
February 25, 2000State Public Notification received1 linked violation

Contact

MONMOUTH, CITY OF

503-838-2173

MONMOUTH, OR 97361