DUBUQUE, IA · Dubuque County
DUBUQUE WATER WORKS Water System
Consumer Confidence Report status
DUBUQUE WATER WORKS 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 DUBUQUE WATER WORKS.
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)
- IA3126052
- System type
- Community Water System
- Population served
- 59,667
- Service connections
- 23,954
- Ownership
- local government
- Water source
- groundwater (wells)
DUBUQUE WATER WORKS is among the 10 largest community water systems in Iowa, serving 59,667 people from groundwater.
As of August 1, 2026, its federal record holds 1 entry in 2004, all of which EPA lists as closed. Nothing has been added since 2004.
All 1 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 Stage 1 Disinfectants and Disinfection Byproducts Rule.
Violation history
Monitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
April 1, 2004 – June 30, 2004
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| April 1, 2004 – June 30, 2004 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- November 4, 2004State Public Notification requested8 linked violations
- July 14, 2004State Compliance achieved5 linked violations
- September 12, 1990State Compliance achieved1 linked violation
- August 20, 1990State Public Notification requested2 linked violations
- November 29, 1989State Intentional no-actiongeneral compliance action — not tied to a specific violation on record
- October 5, 1989State Compliance achieved5 linked violations
- August 21, 1989State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
Common questions
Is DUBUQUE WATER WORKS required to publish a Consumer Confidence Report?
- Yes. DUBUQUE WATER WORKS 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 DUBUQUE WATER WORKS’s next Consumer Confidence Report due?
- DUBUQUE WATER WORKS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DUBUQUE WATER WORKS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for DUBUQUE WATER WORKS.
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
DUBUQUE WATER WORKS
563-589-4291
DUBUQUE, IA 52001