MARQUETTE, IA · Clayton County

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

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2016 – March 31, 2016
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, 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 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 Formal Notice of Violation issued4 linked violations
August 3, 1993State Public Notification requested7 linked violations
October 15, 1987State Compliance achieved1 linked violation
September 15, 1987State Public Notification requested1 linked violation
March 6, 1987State Formal Notice of Violation issued2 linked violations
March 6, 1987State Formal Notice of Violation issued1 linked violation
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

Contact

MARQUETTE WATER SUPPLY

563-873-3386

MARQUETTE, IA 52158