DENISON, IA · Crawford County
DENISON WATER SUPPLY Water System
Consumer Confidence Report status
DENISON 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 DENISON 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)
- IA2424027
- System type
- Community Water System
- Population served
- 9,381
- Service connections
- 2,930
- Ownership
- local government
- Water source
- groundwater (wells)
DENISON WATER SUPPLY is one of 91 community water systems in Iowa in the 3,301 to 10,000 people size category, serving 9,381 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
- December 11, 2001State Compliance achieved3 linked violations
- November 14, 2001State Public Notification requested2 linked violations
- November 14, 2001State Formal Notice of Violation issued2 linked violations
- June 5, 1991State Compliance achieved1 linked violation
- May 3, 1991State Public Notification received1 linked violation
Common questions
Is DENISON WATER SUPPLY required to publish a Consumer Confidence Report?
- Yes. DENISON 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 DENISON WATER SUPPLY’s next Consumer Confidence Report due?
- DENISON WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DENISON WATER SUPPLY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for DENISON 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
DENISON WATER SUPPLY
712-263-4458
DENISON, IA 51442