IONIA, MO · Benton County
IONIA PWS Water System
Consumer Confidence Report status
IONIA PWS 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 IONIA PWS 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 Missouri’s official records. Always confirm current status with Missouri before making decisions based on this information.
System facts
- System ID (PWSID)
- MO3010400
- System type
- Community Water System
- Population served
- 88
- Service connections
- 44
- Ownership
- local government
- Water source
- groundwater (wells)
IONIA PWS is one of 1,412 community water systems in Missouri in the 500 or fewer people size category, serving 88 people from groundwater.
As of August 1, 2026, its federal record holds 3 entries between 1994 and 2025, of which 1 remains open; none are health-based.
All 3 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, the Lead and Copper Rule, and the Total Coliform Rules.
Violation history
Monitoring, Source Water (GWR)
—E. COLI
August 1, 2025 – October 23, 2025
ResolvedLSL Reporting
—LEAD AND COPPER RULE REVISIONS
October 17, 2024
UnaddressedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
December 1, 1994 – December 31, 1994
Archived
Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| August 1, 2025 – October 23, 2025 | Monitoring, Source Water (GWR) | E. COLI | — | Resolved |
| October 17, 2024 | LSL Reporting | LEAD AND COPPER RULE REVISIONS | — | Unaddressed |
| December 1, 1994 – December 31, 1994 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is IONIA PWS required to publish a Consumer Confidence Report?
- Yes. IONIA PWS 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 IONIA PWS’s next Consumer Confidence Report due?
- IONIA PWS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does IONIA PWS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 1 item for IONIA PWS 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
DEMOSS, ARIE
417-399-9108
IONIA, MO 65335-0000