MASSENA, IA · Cass County

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

System facts

System ID (PWSID): IA1558055
System type: Community Water System
Population served: 364
Service connections: 200
Ownership: local government
Water source: groundwater (wells)

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
March 13, 2025
Unaddressed
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2024 – September 30, 2024
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
August 27, 2024 – August 27, 2024
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2024 – July 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2024 – July 31, 2024
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2024 – March 31, 2024
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 6, 2023
Unaddressed
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
May 1, 2022 – May 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2020 – July 31, 2020
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2020 – July 31, 2020
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2019 – July 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2019 – July 31, 2019
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
June 20, 2015 – February 1, 2018
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
June 20, 2015 – February 1, 2018
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 1995 – March 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1995 – February 28, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1995 – January 31, 1995
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
April 1, 1988 – October 25, 1988
Resolved
Monitoring, Regular
—
Mercury
July 1, 1985 – June 30, 1988
Resolved
Monitoring, Regular
—
Selenium
July 1, 1985 – June 30, 1988
Resolved
Monitoring, Regular
—
Chromium
July 1, 1985 – June 30, 1988
Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
March 13, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
September 1, 2024 – September 30, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
August 27, 2024 – August 27, 2024	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
July 1, 2024 – July 31, 2024	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2024 – July 31, 2024	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	Arsenic	—	Resolved
October 6, 2023	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
May 1, 2022 – May 31, 2022	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
July 1, 2020 – July 31, 2020	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2020 – July 31, 2020	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2019 – July 31, 2019	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2019 – July 31, 2019	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
June 20, 2015 – February 1, 2018	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
June 20, 2015 – February 1, 2018	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
March 1, 1995 – March 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 1995 – February 28, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1995 – January 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 1988 – October 25, 1988	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 1985 – June 30, 1988	Monitoring, Regular	Mercury	—	Resolved
July 1, 1985 – June 30, 1988	Monitoring, Regular	Selenium	—	Resolved
July 1, 1985 – June 30, 1988	Monitoring, Regular	Chromium	—	Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Enforcement actions

July 22, 2025State Compliance achieved1 linked violation
July 22, 2025State Compliance achieved1 linked violation
June 25, 2025State Intentional no-action1 linked violation
June 25, 2025State Intentional no-action1 linked violation
June 25, 2025State Formal Notice of Violation issued1 linked violation
June 25, 2025State Violation/Reminder Notice1 linked violation
June 25, 2025State Formal Notice of Violation issued1 linked violation
June 25, 2025State Violation/Reminder Notice1 linked violation
March 11, 2025State Public Notification received1 linked violation
March 11, 2025State Public Notification received1 linked violation
December 18, 2024State Compliance achieved1 linked violation
December 9, 2024State Public Notification requested1 linked violation
December 9, 2024State Public Notification requested1 linked violation
December 9, 2024State Formal Notice of Violation issued1 linked violation
December 9, 2024State Public Notification requested2 linked violations
December 9, 2024State Formal Notice of Violation issued1 linked violation
December 9, 2024State Formal Notice of Violation issued1 linked violation
November 25, 2024State Compliance achieved1 linked violation
November 25, 2024State Compliance achieved1 linked violation
September 26, 2024State Public Notification requested2 linked violations
September 26, 2024State Formal Notice of Violation issued1 linked violation
September 26, 2024State Public Notification requested1 linked violation
September 26, 2024State Formal Notice of Violation issued1 linked violation
September 26, 2024State Public Notification requested2 linked violations
August 27, 2024State Compliance achieved1 linked violation
June 30, 2024State Compliance achieved1 linked violation
June 30, 2024State Public Notification issued1 linked violation
June 4, 2024State Public Notification requested1 linked violation
June 4, 2024State Formal Notice of Violation issued1 linked violation
June 4, 2024State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
June 4, 2024State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
May 28, 2024State Compliance achieved1 linked violation
May 28, 2024State Compliance achievedgeneral compliance action — not tied to a specific violation on record
March 11, 2024State Public Notification received1 linked violation
March 11, 2024State Public Notification received1 linked violation
March 11, 2024State Public Notification received1 linked violation
March 10, 2024State Compliance achievedgeneral compliance action — not tied to a specific violation on record
January 23, 2024State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 18, 2023State Formal Notice of Violation issued1 linked violation
December 18, 2023State Violation/Reminder Notice1 linked violation
December 18, 2023State Formal Notice of Violation issued1 linked violation
December 18, 2023State Intentional no-action1 linked violation
December 18, 2023State Violation/Reminder Notice1 linked violation
December 18, 2023State Intentional no-action1 linked violation
October 4, 2023State Formal Notice of Violation issued1 linked violation
October 4, 2023State Public Notification requested1 linked violation
July 15, 2022State Compliance achieved1 linked violation
May 19, 2022State Formal Notice of Violation issued9 linked violations
July 19, 2021State Compliance achieved2 linked violations
July 19, 2021State Compliance achieved1 linked violation
July 19, 2021State Compliance achieved2 linked violations
June 24, 2021State Public Notification received2 linked violations
October 2, 2020State Public Notification requested3 linked violations
September 18, 2019State Formal Notice of Violation issued3 linked violations
February 16, 2018State Public Notification requested4 linked violations
January 19, 2016State Formal Notice of Violation issued3 linked violations
January 19, 2016State Violation/Reminder Notice9 linked violations
January 19, 2016State Violation/Reminder Notice2 linked violations
March 17, 2015State Compliance achieved3 linked violations
March 17, 2015State Compliance achieved2 linked violations
March 16, 2015State Public Notification requested2 linked violations
March 24, 1998State Public Notification received3 linked violations
February 23, 1998State Public Notification requested3 linked violations
September 24, 1997State Compliance achieved3 linked violations
August 27, 1996State Public Notification received5 linked violations
April 28, 1995State Formal Notice of Violation issued1 linked violation
April 28, 1995State Public Notification requested1 linked violation
April 1, 1995State Compliance achieved1 linked violation
April 1, 1995State Compliance achieved6 linked violations
April 1, 1995State Compliance achieved7 linked violations
November 23, 1988State Administrative/Compliance Order without penalty issued2 linked violations
November 23, 1988State Administrative/Compliance Order without penalty issued1 linked violation
November 23, 1988State Administrative/Compliance Order without penalty issued3 linked violations
November 23, 1988State Administrative/Compliance Order without penalty issued1 linked violation
October 25, 1988State Compliance achieved2 linked violations
October 25, 1988State Compliance achieved1 linked violation
October 25, 1988State Compliance achieved1 linked violation
October 25, 1988State Compliance achievedgeneral compliance action — not tied to a specific violation on record
February 18, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
January 21, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Contact

MASSENA WATER SUPPLY

712-779-2047

MASSENA, IA 50853