DUNLAP, IA · Harrison County
DUNLAP WATER SUPPLY Water System
Consumer Confidence Report status
DUNLAP 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 DUNLAP 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)
- IA4316087
- System type
- Community Water System
- Population served
- 1,035
- Service connections
- 510
- Ownership
- local government
- Water source
- groundwater (wells)
DUNLAP WATER SUPPLY is one of 403 community water systems in Iowa in the 501 to 3,300 people size category, serving 1,035 people from groundwater.
As of August 1, 2026, its federal record holds 7 entries between 1983 and 2025, all of which EPA lists as closed.
Of the 7, 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 Consumer Confidence Rule, the Total Coliform Rules, and inorganic chemicals.
Violation history
Consumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2025 – September 2, 2025
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2023 – September 11, 2025
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2022 – August 23, 2022
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
September 1, 1993 – September 30, 1993
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
June 1, 1993 – June 30, 1993
ResolvedMaximum Contaminant Level Violation, Single Sample
Health-basedNitrate
October 1, 1984 – April 30, 1985
ArchivedMaximum Contaminant Level Violation, Single Sample
Health-basedNitrate
October 1, 1983 – September 30, 1984
Archived
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, 2025 – September 2, 2025 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| October 1, 2023 – September 11, 2025 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| July 1, 2022 – August 23, 2022 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| September 1, 1993 – September 30, 1993 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| June 1, 1993 – June 30, 1993 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| October 1, 1984 – April 30, 1985 | Maximum Contaminant Level Violation, Single Sample | Nitrate | Health-based | Archived |
| October 1, 1983 – September 30, 1984 | Maximum Contaminant Level Violation, Single Sample | Nitrate | Health-based | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- September 11, 2025State Compliance achieved2 linked violations
- August 21, 2025State Formal Notice of Violation issued3 linked violations
- November 8, 2024State Formal Notice of Violation issued2 linked violations
- August 23, 2022State Compliance achieved7 linked violations
- August 18, 2022State Formal Notice of Violation issued25 linked violations
- December 14, 2004State Formal Notice of Violation issued7 linked violations
- December 7, 2004State Compliance achieved1 linked violation
- January 29, 1996State Public Notification requested2 linked violations
- October 6, 1995State Compliance achieved2 linked violations
- September 30, 1994State Formal Notice of Violation issued6 linked violations
- May 20, 1994State Formal Notice of Violation issued2 linked violations
- November 12, 1993State Public Notification received2 linked violations
- October 28, 1993State Formal Notice of Violation issued1 linked violation
Common questions
Is DUNLAP WATER SUPPLY required to publish a Consumer Confidence Report?
- Yes. DUNLAP 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 DUNLAP WATER SUPPLY’s next Consumer Confidence Report due?
- DUNLAP WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DUNLAP WATER SUPPLY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for DUNLAP 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
DUNLAP WATER SUPPLY
712-643-5721
DUNLAP, IA 51529