MAQUOKETA, IA · Jackson County

MAQUOKETA MUNICIPAL WATER 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): IA4950029
System type: Community Water System
Population served: 6,128
Service connections: 2,477
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Diquat
July 1, 2018 – June 30, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2003 – June 30, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2003 – June 30, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2003 – March 31, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2002 – September 30, 2002
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2002 – June 30, 2002
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Combined Radium (-226 and -228)
October 1, 1983 – September 30, 1984
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
September 19, 1979 – September 18, 1980
Archived

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
July 1, 2018 – June 30, 2024	Monitoring, Regular	Diquat	—	Resolved
April 1, 2003 – June 30, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2003 – June 30, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2003 – March 31, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2002 – September 30, 2002	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2002 – June 30, 2002	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 1983 – September 30, 1984	Maximum Contaminant Level Violation, Single Sample	Combined Radium (-226 and -228)	Health-based	Archived
September 19, 1979 – September 18, 1980	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived

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

Enforcement actions

May 22, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
May 22, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
May 22, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 17, 2024State Compliance achievedgeneral compliance action — not tied to a specific violation on record
September 17, 2024State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 29, 2024State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 29, 2024State Formal Notice of Violation issued1 linked violation
August 29, 2024State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 29, 2024State Public Notification requested2 linked violations
January 9, 2004State Public Notification received30 linked violations
December 17, 2003State Formal Notice of Violation issued3 linked violations
December 17, 2003State Formal Notice of Violation issued2 linked violations
November 20, 2003State Bilateral Compliance Agreement signed4 linked violations
November 10, 2003State Public Notification requested5 linked violations
November 10, 2003State Public Notification requested25 linked violations
May 7, 2003State Bilateral Compliance Agreement signed1 linked violation
April 16, 2003State Formal Notice of Violation issued3 linked violations
April 16, 2003State Public Notification requested3 linked violations
January 15, 2003State Public Notification received5 linked violations
December 30, 2002State Formal Notice of Violation issued1 linked violation
December 30, 2002State Public Notification requested1 linked violation
December 2, 2002State Formal Notice of Violation issued3 linked violations
December 2, 2002State Public Notification requested4 linked violations
June 6, 1996State Compliance achieved1 linked violation
June 6, 1996State Compliance achieved10 linked violations
December 26, 1995State Public Notification received9 linked violations
November 22, 1995State Formal Notice of Violation issued17 linked violations
November 22, 1995State Public Notification requested3 linked violations
November 22, 1995State Formal Notice of Violation issued3 linked violations
November 22, 1995State Formal Notice of Violation issued2 linked violations
November 22, 1995State Public Notification requested6 linked violations
November 13, 1995State Compliance achieved2 linked violations
November 13, 1995State Compliance achieved4 linked violations
November 13, 1995State Compliance achieved3 linked violations
February 18, 1994State Public Notification requested3 linked violations
February 18, 1994State Formal Notice of Violation issued1 linked violation

Contact

MAQUOKETA MUNICIPAL WATER

563-652-7170

MAQUOKETA, IA 52060