WALNUT, IA · Pottawattamie County

WALNUT MUNICIPAL UTILITIES 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): IA7872062
System type: Community Water System
Population served: 768
Service connections: 420
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Arsenic
July 1, 2001 – June 30, 2002
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2001 – June 30, 2001
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
April 1, 1985 – March 31, 1989
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 1985 – March 31, 1989
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 1984 – September 30, 1985
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Fluoride
October 1, 1984 – September 30, 1985
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Fluoride
October 1, 1983 – September 30, 1984
Archived
Maximum Contaminant Level Violation, Average
Health-based
Fluoride
May 6, 1980 – May 5, 1981
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Combined Radium (-226 and -228)
January 1, 1980 – December 31, 1983
Resolved

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, 2001 – June 30, 2002	Monitoring, Regular	Arsenic	—	Resolved
June 1, 2001 – June 30, 2001	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 1985 – March 31, 1989	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
April 1, 1985 – March 31, 1989	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
October 1, 1984 – September 30, 1985	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
October 1, 1984 – September 30, 1985	Maximum Contaminant Level Violation, Single Sample	Fluoride	Health-based	Archived
October 1, 1983 – September 30, 1984	Maximum Contaminant Level Violation, Single Sample	Fluoride	Health-based	Archived
May 6, 1980 – May 5, 1981	Maximum Contaminant Level Violation, Average	Fluoride	Health-based	Archived
January 1, 1980 – December 31, 1983	Maximum Contaminant Level Violation, Single Sample	Combined Radium (-226 and -228)	Health-based	Resolved

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

Enforcement actions

June 26, 1989State Intentional no-action3 linked violations
September 30, 1984Federal issued Formal Notice of Violation2 linked violations

Contact

WALNUT MUNICIPAL UTILITIES

712-784-3711

WALNUT, IA 51577