Is MARQUETTE WATER SUPPLY required to publish a Consumer Confidence Report?

Yes. MARQUETTE WATER SUPPLY 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 MARQUETTE WATER SUPPLY’s next Consumer Confidence Report due?

MARQUETTE WATER SUPPLY’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.

MARQUETTE, IA · Clayton County

MARQUETTE WATER SUPPLY Water System

Consumer Confidence Report status

MARQUETTE WATER SUPPLY 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 MARQUETTE WATER SUPPLY.

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): IA2256041
System type: Community Water System
Population served: 429
Service connections: 300
Ownership: local government
Water source: groundwater (wells)

MARQUETTE WATER SUPPLY is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 429 people from groundwater.

As of August 1, 2026, its federal record holds 3 entries between 1982 and 2016, all of which EPA lists as closed. Nothing has been added since 2016.

None of the 3 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Radionuclides and Revised Rad Rule.

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2016 – March 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2015 – December 31, 2015
Resolved
Notification, Public
—
Combined Radium (-226 and -228)
October 1, 1982 – September 30, 1986
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2016 – March 31, 2016	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 1982 – September 30, 1986	Notification, Public	Combined Radium (-226 and -228)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

June 19, 2017State Administrative/Compliance Order without penalty issued2 linked violations
June 28, 2016State Compliance achieved2 linked violations
March 21, 2016State Formal Notice of Violation issued2 linked violations
March 21, 2016State Public Notification requested2 linked violations
December 10, 2015State Formal Notice of Violation issued2 linked violations
November 6, 2015State Public Notification received3 linked violations
August 20, 1998State Compliance achieved1 linked violation
August 3, 1993State Public Notification requested28 linked violations
August 3, 1993State Public Notification requested7 linked violations
September 15, 1987State Public Notification requested1 linked violation
March 6, 1987State Formal Notice of Violation issued1 linked violation
June 6, 1986State Public Notification requested5 linked violations
March 1, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
February 19, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
February 5, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Common questions

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

MARQUETTE WATER SUPPLY

563-873-3386

MARQUETTE, IA 52158