DUNCOMBE, IA · Webster County
DUNCOMBE WATER SUPPLY Water System
Consumer Confidence Report status
DUNCOMBE 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 no open violations for DUNCOMBE WATER SUPPLY.
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)
- IA9427082
- System type
- Community Water System
- Population served
- 384
- Service connections
- 178
- Ownership
- local government
- Water source
- groundwater (wells)
DUNCOMBE WATER SUPPLY is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 384 people from groundwater.
As of August 1, 2026, EPA's published records contain no violations for this system.
Violation history
No violations on record for this system.
Enforcement actions
- March 16, 1990State Compliance achieved2 linked violations
- September 27, 1989State Formal Notice of Violation issued1 linked violation
- September 27, 1989State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- September 27, 1989State Public Notification requested2 linked violations
- September 30, 1984Federal issued Formal Notice of Violationgeneral compliance action — not tied to a specific violation on record
Common questions
Is DUNCOMBE WATER SUPPLY required to publish a Consumer Confidence Report?
- Yes. DUNCOMBE 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 DUNCOMBE WATER SUPPLY’s next Consumer Confidence Report due?
- DUNCOMBE WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DUNCOMBE WATER SUPPLY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for DUNCOMBE WATER SUPPLY.
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
DUNCOMBE WATER SUPPLY
515-351-9689
DUNCOMBE, IA 50532