POSTVILLE, IA · Allamakee County
POSTVILLE WATER DEPARTMENT Water System
Consumer Confidence Report status
POSTVILLE WATER DEPARTMENT 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 POSTVILLE WATER DEPARTMENT.
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)
- IA0375053
- System type
- Community Water System
- Population served
- 2,513
- Service connections
- 862
- Ownership
- local government
- Water source
- groundwater (wells)
POSTVILLE WATER DEPARTMENT is one of 403 community water systems in Iowa in the 501 to 3,300 people size category, serving 2,513 people from groundwater.
As of August 1, 2026, its federal record holds 2 entries between 2018 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.
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 Total Coliform Rules and the Radionuclides and Revised Rad Rule.
Violation history
Monitoring, Routine (RTCR)
—Revised Total Coliform Rule
July 1, 2023 – July 31, 2023
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 2018 – September 30, 2024
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2023 – July 31, 2023 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| October 1, 2018 – September 30, 2024 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- March 3, 2025State Public Notification received2 linked violations
- December 18, 2024State Compliance achieved1 linked violation
- December 5, 2024State Formal Notice of Violation issued3 linked violations
- September 12, 2023State Public Notification received2 linked violations
- August 17, 2023State Formal Notice of Violation issued3 linked violations
- May 14, 1996State Public Notification requested3 linked violations
- May 14, 1996State Public Notification requested4 linked violations
- May 22, 1995State Formal Notice of Violation issued2 linked violations
- May 22, 1995State Public Notification requested2 linked violations
- December 16, 1991State Public Notification received1 linked violation
- November 12, 1991State Public Notification requested4 linked violations
- October 1, 1991State Compliance achieved2 linked violations
Common questions
Is POSTVILLE WATER DEPARTMENT required to publish a Consumer Confidence Report?
- Yes. POSTVILLE WATER DEPARTMENT 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 POSTVILLE WATER DEPARTMENT’s next Consumer Confidence Report due?
- POSTVILLE WATER DEPARTMENT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does POSTVILLE WATER DEPARTMENT have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for POSTVILLE WATER DEPARTMENT.
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
POSTVILLE WATER DEPARTMENT
563-379-9341
POSTVILLE, IA 52162