Is MARION MUNICIPAL WATER DEPT required to publish a Consumer Confidence Report?

Yes. MARION MUNICIPAL WATER DEPT 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 MARION MUNICIPAL WATER DEPT’s next Consumer Confidence Report due?

MARION MUNICIPAL WATER DEPT’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.

MARION, IA · Linn County

MARION MUNICIPAL WATER DEPT Water System

Consumer Confidence Report status

MARION MUNICIPAL WATER DEPT 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 MARION MUNICIPAL WATER DEPT.

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): IA5751035
System type: Community Water System
Population served: 41,623
Service connections: 15,383
Ownership: local government
Water source: groundwater (wells)

MARION MUNICIPAL WATER DEPT is among the 14 largest community water systems in Iowa, serving 41,623 people from groundwater.

As of August 1, 2026, its federal record holds 5 entries between 1995 and 2015, all of which EPA lists as closed. Nothing has been added since 2015.

Of the 5, 3 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 the Total Coliform Rules, inorganic chemicals, and the Radionuclides and Revised Rad Rule.

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2015 – March 31, 2015
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 2002 – July 31, 2002
Resolved
Monitoring, Regular
—
Nitrate
July 1, 1999 – June 30, 2000
Resolved
Monitoring, Regular
—
Nitrate
July 1, 1999 – June 30, 2000
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1995 – September 30, 1995
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2015 – March 31, 2015	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2002 – July 31, 2002	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 1999 – June 30, 2000	Monitoring, Regular	Nitrate	—	Resolved
July 1, 1999 – June 30, 2000	Monitoring, Regular	Nitrate	—	Resolved
September 1, 1995 – September 30, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

April 11, 2016State Public Notification received2 linked violations
August 19, 2015State Formal Notice of Violation issued3 linked violations
June 4, 2015State Formal Notice of Violation issued4 linked violations
October 9, 2003State Violation/Reminder Notice3 linked violations
October 3, 2003State Public Notification received3 linked violations
August 8, 2000State Public Notification received25 linked violations
July 20, 2000State Formal Notice of Violation issued24 linked violations
May 22, 1990State Compliance achievedgeneral compliance action — not tied to a specific violation on record

Common questions

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

MARION MUNICIPAL WATER DEPT

319-743-6310

MARION, IA 52302