Is LAMONI MUNICIPAL UTILITIES required to publish a Consumer Confidence Report?

Yes. LAMONI MUNICIPAL UTILITIES 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 LAMONI MUNICIPAL UTILITIES’s next Consumer Confidence Report due?

LAMONI MUNICIPAL UTILITIES’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.

LAMONI, IA · Decatur County

LAMONI MUNICIPAL UTILITIES Water System

Consumer Confidence Report status

LAMONI MUNICIPAL UTILITIES 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 LAMONI MUNICIPAL UTILITIES.

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 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)

LAMONI MUNICIPAL UTILITIES is one of 403 community water systems in Iowa in the 501 to 3,300 people size category, serving 2,029 people from surface water.

As of August 1, 2026, its federal record holds 17 entries between 1991 and 2025, all of which EPA lists as closed.

Of the 17, 14 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 inorganic chemicals, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Surface Water Treatment Rules.

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, Routine (RTCR)
—
Revised Total Coliform Rule
December 1, 2022 – December 31, 2022
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2018 – March 31, 2018
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
—
Nitrate
July 1, 1991 – June 30, 1992
Resolved
Monitoring, Regular
—
Cadmium
July 1, 1991 – June 30, 1992
Resolved
Monitoring, Regular
—
Barium
July 1, 1991 – June 30, 1992
Resolved
Monitoring, Regular
—
Arsenic
July 1, 1991 – June 30, 1992
Resolved
Monitoring, Regular
—
Selenium
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

Resolved addressed and confirmed by the state

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
December 1, 2022 – December 31, 2022	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2018 – March 31, 2018	Monitoring, Regular	Nitrite	—	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	Nitrate	—	Resolved
July 1, 1991 – June 30, 1992	Monitoring, Regular	Cadmium	—	Resolved
July 1, 1991 – June 30, 1992	Monitoring, Regular	Barium	—	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	Chromium	—	Resolved
July 1, 1991 – June 30, 1992	Monitoring, Regular	Mercury	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

January 13, 2026State Public Notification received1 linked violation
November 5, 2025State Compliance achieved1 linked violation
October 22, 2025State Public Notification requested1 linked violation
October 22, 2025State Public Notification requested1 linked violation
October 22, 2025State Formal Notice of Violation issued1 linked violation
October 22, 2025State Formal Notice of Violation issued1 linked violation
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 Formal Notice of Violation issued1 linked violation
April 11, 2025State Public Notification requested1 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 Formal Notice of Violation issued1 linked violation
October 11, 2023State Public Notification requested1 linked violation
September 13, 2023State Compliance achieved1 linked violation
September 13, 2023State Compliance achieved2 linked violations
September 13, 2023State Compliance achieved1 linked violation
August 15, 2023State Formal Notice of Violation issued2 linked violations
August 15, 2023State Formal Notice of Violation issued5 linked violations
August 15, 2023State Public Notification requested2 linked violations
January 27, 2016State Public Notification requested7 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
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 issued2 linked violations
August 12, 1992State Public Notification requested2 linked violations
August 12, 1992State Public Notification requested4 linked violations
August 12, 1992State Formal Notice of Violation issued3 linked violations
August 12, 1992State Formal Notice of Violation issued13 linked violations
November 19, 1990State Compliance achieved3 linked violations
October 10, 1990State Compliance achieved5 linked violations
October 10, 1990State Compliance achievedgeneral compliance action — not tied to a specific violation on record
January 30, 1989State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 30, 1989State Formal Notice of Violation issued2 linked violations

Common questions

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

LAMONI MUNI UTILITIES

641-784-6911

LAMONI, IA 50140