WALNUT, IA · Pottawattamie County
WALNUT MUNICIPAL UTILITIES Water System
Consumer Confidence Report status
WALNUT MUNICIPAL UTILITIES 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 WALNUT MUNICIPAL UTILITIES.
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)
- IA7872062
- System type
- Community Water System
- Population served
- 768
- Service connections
- 420
- Ownership
- local government
- Water source
- groundwater (wells)
WALNUT MUNICIPAL UTILITIES is one of 403 community water systems in Iowa in the 501 to 3,300 people size category, serving 768 people from groundwater.
As of August 1, 2026, its federal record holds 11 entries between 1980 and 2001, all of which EPA lists as closed. Nothing has been added since 2001.
Of the 11, 5 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Radionuclides and Revised Rad Rule, inorganic chemicals, and the Total Coliform Rules.
Violation history
Monitoring, Regular
—Arsenic
July 1, 2001 – June 30, 2002
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
June 1, 2001 – June 30, 2001
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
October 1, 1989 – December 31, 1989
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
April 1, 1985 – March 31, 1989
ArchivedMonitoring, Regular
—Combined Radium (-226 and -228)
April 1, 1985 – March 31, 1989
ArchivedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
October 1, 1984 – September 30, 1985
ArchivedMaximum Contaminant Level Violation, Single Sample
Health-basedFluoride
October 1, 1984 – September 30, 1985
ArchivedMaximum Contaminant Level Violation, Single Sample
Health-basedFluoride
October 1, 1983 – September 30, 1984
ArchivedMaximum Contaminant Level Violation, Single Sample
Health-basedCombined Radium (-226 and -228)
October 1, 1983 – September 30, 1984
ArchivedMaximum Contaminant Level Violation, Average
Health-basedFluoride
May 6, 1980 – May 5, 1981
ArchivedMaximum Contaminant Level Violation, Single Sample
Health-basedCombined 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 |
| October 1, 1989 – December 31, 1989 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| April 1, 1985 – March 31, 1989 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
| April 1, 1985 – March 31, 1989 | Monitoring, Regular | Combined Radium (-226 and -228) | — | 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 |
| October 1, 1983 – September 30, 1984 | Maximum Contaminant Level Violation, Single Sample | Combined Radium (-226 and -228) | 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
- July 31, 2001State Formal Notice of Violation issued5 linked violations
- June 26, 1989State Intentional no-action3 linked violations
- September 30, 1984Federal issued Formal Notice of Violation2 linked violations
- January 15, 1984State Formal Notice of Violation issued1 linked violation
- January 15, 1984State Formal Notice of Violation issued2 linked violations
Common questions
Is WALNUT MUNICIPAL UTILITIES required to publish a Consumer Confidence Report?
- Yes. WALNUT MUNICIPAL UTILITIES 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 WALNUT MUNICIPAL UTILITIES’s next Consumer Confidence Report due?
- WALNUT MUNICIPAL UTILITIES’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does WALNUT MUNICIPAL UTILITIES have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for WALNUT MUNICIPAL UTILITIES.
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
WALNUT MUNICIPAL UTILITIES
712-784-3711
WALNUT, IA 51577