LAMONI, IA · Decatur County

LAMONI MUNICIPAL UTILITIES 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): IA2740050
System type: Community Water System
Population served: 2,029
Service connections: 913
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
March 1, 2025 – March 31, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine dioxide
August 1, 2023 – August 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
August 1, 2023 – August 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorite
June 1, 2023 – June 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
June 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2018 – March 31, 2018
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2016 – September 30, 2025
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2016 – September 30, 2025
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
November 1, 2015 – November 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2011 – September 30, 2011
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 1999 – August 31, 1999
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
April 1, 1992 – July 1, 1992
Resolved
Monitoring, Regular
—
Arsenic
July 1, 1991 – June 30, 1992
Resolved
Monitoring, Regular
—
Selenium
July 1, 1991 – June 30, 1992
Resolved
Monitoring, Regular
—
Cadmium
July 1, 1991 – June 30, 1992
Resolved
Monitoring, Regular
—
Chromium
July 1, 1991 – June 30, 1992
Resolved
Monitoring, Regular
—
Mercury
July 1, 1991 – June 30, 1992
Resolved
Monitoring, Regular
—
Nitrate
July 1, 1991 – June 30, 1992
Resolved
Monitoring, Regular
—
Barium
July 1, 1991 – June 30, 1992
Resolved

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
March 1, 2025 – March 31, 2025	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
August 1, 2023 – August 31, 2023	Monitoring and Reporting (DBP)	Chlorine dioxide	—	Resolved
August 1, 2023 – August 31, 2023	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
June 1, 2023 – June 30, 2023	Monitoring and Reporting (DBP)	Chlorite	—	Resolved
June 1, 2023 – June 30, 2023	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2018 – March 31, 2018	Monitoring, Regular	Nitrite	—	Resolved
October 1, 2016 – September 30, 2025	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
October 1, 2016 – September 30, 2025	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
November 1, 2015 – November 30, 2015	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
July 1, 2011 – September 30, 2011	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
August 1, 1999 – August 31, 1999	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
April 1, 1992 – July 1, 1992	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 1991 – June 30, 1992	Monitoring, Regular	Arsenic	—	Resolved
July 1, 1991 – June 30, 1992	Monitoring, Regular	Selenium	—	Resolved
July 1, 1991 – June 30, 1992	Monitoring, Regular	Cadmium	—	Resolved
July 1, 1991 – June 30, 1992	Monitoring, Regular	Chromium	—	Resolved
July 1, 1991 – June 30, 1992	Monitoring, Regular	Mercury	—	Resolved
July 1, 1991 – June 30, 1992	Monitoring, Regular	Nitrate	—	Resolved
July 1, 1991 – June 30, 1992	Monitoring, Regular	Barium	—	Resolved

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

Enforcement actions

May 10, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 10, 2025State Compliance achieved1 linked violation
April 17, 2025State Public Notification received1 linked violation
April 11, 2025State Public Notification requested1 linked violation
April 11, 2025State Formal Notice of Violation issued1 linked violation
February 12, 2025State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
May 21, 2024State Public Notification received1 linked violation
May 21, 2024State Public Notification received1 linked violation
January 18, 2024State Public Notification received1 linked violation
January 18, 2024State Public Notification received1 linked violation
October 11, 2023State Formal Notice of Violation issued1 linked violation
October 11, 2023State Public Notification requested1 linked violation
October 11, 2023State Formal Notice of Violation issued1 linked violation
October 11, 2023State Public Notification requested2 linked violations
September 13, 2023State Compliance achieved1 linked violation
September 13, 2023State Compliance achieved1 linked violation
August 15, 2023State Public Notification requested2 linked violations
August 15, 2023State Formal Notice of Violation issued2 linked violations
August 15, 2023State Public Notification requested3 linked violations
January 23, 2023State Public Notification requested3 linked violations
January 23, 2023State Formal Notice of Violation issued8 linked violations
January 11, 2023State Compliance achieved3 linked violations
June 13, 2018State Public Notification received3 linked violations
April 18, 2018State Compliance achieved3 linked violations
February 22, 2016State Public Notification received4 linked violations
August 1, 2012State Compliance achieved5 linked violations
October 9, 1998State Formal Notice of Violation issued1 linked violation
June 5, 1996State Compliance achievedgeneral compliance action — not tied to a specific violation on record
March 24, 1993State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 1, 1992State Public Notification received1 linked violation
September 1, 1992State Public Notification received2 linked violations
August 12, 1992State Formal Notice of Violation issued2 linked violations
August 12, 1992State Formal Notice of Violation issued2 linked violations
August 12, 1992State Public Notification requested2 linked violations
August 12, 1992State Public Notification requested13 linked violations
August 12, 1992State Formal Notice of Violation issued2 linked violations
August 12, 1992State Public Notification requested2 linked violations
August 12, 1992State Formal Notice of Violation issued12 linked violations
July 1, 1992State Compliance achieved2 linked violations
July 1, 1992State Compliance achieved2 linked violations
September 26, 1991State Public Notification received1 linked violation
October 10, 1990State Compliance achieved5 linked violations
January 30, 1989State Formal Notice of Violation issued2 linked violations
January 21, 1982State Unresolved1 linked violation

Contact

LAMONI MUNI UTILITIES

641-784-6911

LAMONI, IA 50140