MAPLETON, IA · Monona County

MAPLETON MUNICIPAL WATER PLANT 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): IA6727028
System type: Community Water System
Population served: 1,124
Service connections: 629
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2015 – November 30, 2015
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
September 1, 2000 – September 30, 2000
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
May 1, 1994 – May 31, 1994
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
February 1, 1994 – February 28, 1994
Resolved
Notification, Public
—
Nitrate
January 1, 1994 – January 31, 1994
Resolved
Monitoring, Regular
—
Antimony, Total
October 1, 1992 – September 30, 1995
Resolved
Monitoring, Check/Repeat/Confirmation
—
Nitrate
January 1, 1991 – March 31, 1991
Resolved
Monitoring, Regular
—
Nitrate
April 1, 1990 – June 30, 1990
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
November 1, 2015 – November 30, 2015	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
September 1, 2000 – September 30, 2000	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Resolved
May 1, 1994 – May 31, 1994	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Resolved
February 1, 1994 – February 28, 1994	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Resolved
January 1, 1994 – January 31, 1994	Notification, Public	Nitrate	—	Resolved
October 1, 1992 – September 30, 1995	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 1991 – March 31, 1991	Monitoring, Check/Repeat/Confirmation	Nitrate	—	Resolved
April 1, 1990 – June 30, 1990	Monitoring, Regular	Nitrate	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

January 30, 2024State Compliance achieved2 linked violations
March 17, 2016State Formal Notice of Violation issued4 linked violations
March 7, 2016State Compliance achieved3 linked violations
December 23, 2015State Public Notification received26 linked violations
December 15, 2015State Public Notification requested1 linked violation
March 13, 2001State Compliance achieved4 linked violations
September 1, 2000State Public Notification received5 linked violations
August 10, 2000State Violation/Reminder Notice5 linked violations
July 14, 1998State Compliance achieved1 linked violation
January 30, 1998State Public Notification received4 linked violations
January 12, 1998State Public Notification requested1 linked violation
January 12, 1998State Formal Notice of Violation issued1 linked violation
September 3, 1997State Compliance achieved3 linked violations
September 3, 1996State Bilateral Compliance Agreement signed3 linked violations
March 25, 1996State Public Notification received3 linked violations
March 25, 1995State Bilateral Compliance Agreement signed2 linked violations
March 22, 1995State Bilateral Compliance Agreement signed8 linked violations
March 22, 1995State Bilateral Compliance Agreement signed8 linked violations
November 15, 1994State Formal Notice of Violation issued3 linked violations
September 20, 1994State Formal Notice of Violation issued5 linked violations
June 21, 1993State Public Notification requested9 linked violations
May 13, 1992State Bilateral Compliance Agreement signed5 linked violations
May 13, 1992State Compliance achieved3 linked violations
May 13, 1992State Bilateral Compliance Agreement signed3 linked violations
May 13, 1992State Compliance achieved11 linked violations
February 28, 1992State Administrative/Compliance Order without penalty issued1 linked violation
February 27, 1992State Formal Notice of Violation issued1 linked violation
January 29, 1992State Public Notification received3 linked violations
January 10, 1992State Public Notification requested2 linked violations
December 12, 1990State Compliance achieved2 linked violations
February 19, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Contact

MAPLETON MUNICIPAL WATER PLANT

712-881-1351

MAPLETON, IA 51034