REMSEN, IA · Plymouth County

OYENS WATER SUPPLY 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 Iowa’s official records. Always confirm current status with Iowa before making decisions based on this information.

System facts

System ID (PWSID): IA7561021
System type: Community Water System
Population served: 92
Service connections: 64
Ownership: local government
Water source: groundwater (wells)

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – August 31, 2023
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2011 – September 30, 2011
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2010 – September 30, 2010
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2008 – October 31, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2004 – August 31, 2004
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2001 – June 21, 2002
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 1988 – July 24, 1989
Resolved
Monitoring, Regular
—
Arsenic
April 1, 1986 – March 31, 1989
Resolved
Monitoring, Regular
—
Nitrate
April 1, 1986 – March 31, 1989
Resolved
Monitoring, Regular
—
Selenium
April 1, 1986 – March 31, 1989
Resolved
Monitoring, Regular
—
Mercury
April 1, 1986 – March 31, 1989
Resolved
Monitoring, Regular
—
Fluoride
April 1, 1986 – March 31, 1989
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2023 – August 31, 2023	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
September 1, 2011 – September 30, 2011	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2010 – September 30, 2010	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2008 – October 31, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 2004 – August 31, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2001 – June 21, 2002	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 1988 – July 24, 1989	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
April 1, 1986 – March 31, 1989	Monitoring, Regular	Arsenic	—	Resolved
April 1, 1986 – March 31, 1989	Monitoring, Regular	Nitrate	—	Resolved
April 1, 1986 – March 31, 1989	Monitoring, Regular	Selenium	—	Resolved
April 1, 1986 – March 31, 1989	Monitoring, Regular	Mercury	—	Resolved
April 1, 1986 – March 31, 1989	Monitoring, Regular	Fluoride	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

August 31, 2023State Public Notification received1 linked violation
August 31, 2023State Compliance achieved1 linked violation
August 15, 2023State Formal Notice of Violation issued1 linked violation
November 12, 2012State Compliance achieved1 linked violation
November 12, 2012State Compliance achieved1 linked violation
October 15, 2012State Public Notification received1 linked violation
October 15, 2012State Public Notification received1 linked violation
October 8, 2012State Public Notification requested4 linked violations
October 5, 2012State Violation/Reminder Notice1 linked violation
August 23, 2007State Public Notification received5 linked violations
August 13, 2007State Public Notification requested2 linked violations
August 12, 2007State Boil Water Order2 linked violations
October 15, 2004State Public Notification received2 linked violations
September 22, 2004State Public Notification requested3 linked violations
September 7, 2004State Compliance achieved2 linked violations
January 25, 2003State Compliance achieved2 linked violations
January 25, 2003State Compliance achieved3 linked violations
August 27, 2001State Public Notification requested22 linked violations
August 30, 1999State Public Notification received3 linked violations
July 2, 1999State Public Notification requested2 linked violations
December 8, 1995State Public Notification received2 linked violations
November 22, 1995State Formal Notice of Violation issued3 linked violations
July 24, 1989State Compliance achieved2 linked violations
July 24, 1989State Compliance achieved2 linked violations
July 24, 1989State Compliance achievedgeneral compliance action — not tied to a specific violation on record

Contact

OYENS WATER SUPPLY

712-540-4171

REMSEN, IA 51050