MISSOURI VALLEY, IA · Harrison County
MISSOURI VALLEY WATER SUPPLY Water System
Consumer Confidence Report status
MISSOURI VALLEY WATER SUPPLY 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 1 item for MISSOURI VALLEY WATER SUPPLY that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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)
- IA4344088
- System type
- Community Water System
- Population served
- 2,678
- Service connections
- 1,260
- Ownership
- local government
- Water source
- groundwater (wells)
MISSOURI VALLEY WATER SUPPLY is one of 403 community water systems in Iowa in the 501 to 3,300 people size category, serving 2,678 people from groundwater.
As of August 1, 2026, its federal record holds 2 entries between 2006 and 2022, of which 1 remains open; none are health-based.
All 2 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 Groundwater Rule and the Total Coliform Rules.
Violation history
Monitoring, Source Water (GWR)
—E. COLI
December 9, 2022
UnaddressedMonitoring, Routine Major (TCR)
—Coliform (TCR)
July 1, 2006 – July 31, 2006
Resolved
Unaddressed no corrective action on record yetResolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| December 9, 2022 | Monitoring, Source Water (GWR) | E. COLI | — | Unaddressed |
| July 1, 2006 – July 31, 2006 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
Unaddressed no corrective action on record yetResolved addressed and confirmed by the state
Enforcement actions
- May 5, 2025State Public Notification received3 linked violations
- January 18, 2023State Formal Notice of Violation issued7 linked violations
- June 4, 1996State Public Notification received2 linked violations
- April 26, 1996State Formal Notice of Violation issued2 linked violations
- January 21, 1982State Unresolved1 linked violation
Common questions
Is MISSOURI VALLEY WATER SUPPLY required to publish a Consumer Confidence Report?
- Yes. MISSOURI VALLEY WATER SUPPLY 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 MISSOURI VALLEY WATER SUPPLY’s next Consumer Confidence Report due?
- MISSOURI VALLEY WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MISSOURI VALLEY WATER SUPPLY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 1 item for MISSOURI VALLEY WATER SUPPLY that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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
MISSOURI VALLEY WATER SUPPLY
402-669-8373
MISSOURI VALLEY, IA 51555