Is DYERSVILLE MUNICIPAL WATER CO required to publish a Consumer Confidence Report?

Yes. DYERSVILLE MUNICIPAL WATER CO 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 DYERSVILLE MUNICIPAL WATER CO’s next Consumer Confidence Report due?

DYERSVILLE MUNICIPAL WATER CO’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

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.

DYERSVILLE, IA · Dubuque County

DYERSVILLE MUNICIPAL WATER CO Water System

Consumer Confidence Report status

DYERSVILLE MUNICIPAL WATER CO 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 DYERSVILLE MUNICIPAL WATER CO.

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): IA3130091
System type: Community Water System
Population served: 4,477
Service connections: 2,085
Ownership: local government
Water source: groundwater (wells)

DYERSVILLE MUNICIPAL WATER CO is one of 91 community water systems in Iowa in the 3,301 to 10,000 people size category, serving 4,477 people from groundwater.

As of August 1, 2026, its federal record holds 12 entries between 1992 and 2016, all of which EPA lists as closed. Nothing has been added since 2016.

Of the 12, 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 Radionuclides and Revised Rad Rule, inorganic chemicals, and volatile organic chemicals.

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2016 – September 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2015 – December 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2015 – September 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2015 – June 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2015 – March 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2012 – March 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2011 – December 31, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2007 – September 30, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2007 – March 31, 2007
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
March 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Xylenes, Total
July 1, 1993 – September 30, 1993
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1992 – March 31, 1992
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2016 – September 30, 2016	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2015 – June 30, 2015	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2015 – March 31, 2015	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2012 – March 31, 2012	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2011 – December 31, 2011	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2007 – September 30, 2007	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
March 1, 1994 – March 31, 1994	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Resolved
July 1, 1993 – September 30, 1993	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	Nitrate	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

May 29, 2024State Compliance achieved3 linked violations
February 20, 2017State Formal Notice of Violation issued3 linked violations
December 5, 2016State Compliance achieved3 linked violations
December 5, 2016State Compliance achieved3 linked violations
December 5, 2016State Compliance achieved35 linked violations
December 5, 2016State Compliance achieved2 linked violations
February 9, 2016State Formal Notice of Violation issued4 linked violations
September 4, 2015State Public Notification requested2 linked violations
March 23, 2015State Public Notification received3 linked violations
September 18, 2014State Public Notification received3 linked violations
August 25, 2014State Formal Notice of Violation issued3 linked violations
March 13, 2014State Administrative/Compliance Order without penalty issued3 linked violations
March 13, 2014State Administrative/Compliance Order without penalty issued3 linked violations
March 13, 2014State Administrative/Compliance Order without penalty issued2 linked violations
February 12, 2014State Public Notification requested2 linked violations
December 12, 2013State Formal Notice of Violation issued4 linked violations
August 1, 2013State Administrative/Compliance Order without penalty issued4 linked violations
August 1, 2013State Administrative/Compliance Order without penalty issued3 linked violations
August 1, 2013State Administrative/Compliance Order without penalty issued3 linked violations
March 9, 2012State Administrative/Compliance Order without penalty issued3 linked violations
January 26, 2012State Public Notification requested4 linked violations
March 14, 2007State Public Notification received4 linked violations
February 22, 2007State Bilateral Compliance Agreement signed3 linked violations
November 18, 1996State Formal Notice of Violation issued1 linked violation
November 18, 1996State Public Notification requested3 linked violations
August 1, 1995State Compliance achieved1 linked violation
August 1, 1995State Compliance achieved4 linked violations
August 1, 1995State Compliance achieved2 linked violations
July 11, 1995State Public Notification requested1 linked violation
June 16, 1995State Formal Notice of Violation issued1 linked violation
June 16, 1995State Public Notification requested1 linked violation
March 23, 1995State Public Notification received4 linked violations
January 20, 1995State Public Notification requested1 linked violation
January 20, 1995State Formal Notice of Violation issued1 linked violation
January 20, 1995State Public Notification requested4 linked violations
June 27, 1994State Bilateral Compliance Agreement signed2 linked violations
June 27, 1994State Compliance achieved2 linked violations
June 27, 1994State Bilateral Compliance Agreement signed3 linked violations
June 27, 1994State Compliance achieved1 linked violation
June 27, 1994State Compliance achieved10 linked violations
June 27, 1994State Compliance achieved6 linked violations
June 27, 1994State Bilateral Compliance Agreement signed13 linked violations
June 21, 1994State Public Notification requested3 linked violations
December 23, 1993State Public Notification received2 linked violations
December 1, 1993State Formal Notice of Violation issued7 linked violations
November 19, 1993State Public Notification requested8 linked violations
November 19, 1993State Formal Notice of Violation issued1 linked violation
November 19, 1993State Public Notification requested1 linked violation
November 19, 1993State Public Notification requested2 linked violations
March 9, 1993State Compliance achieved2 linked violations
March 3, 1993State Public Notification received3 linked violations
June 11, 1992State Compliance achieved1 linked violation
June 10, 1992State Public Notification received1 linked violation
May 19, 1992State Formal Notice of Violation issued3 linked violations
May 19, 1992State Public Notification requested3 linked violations
May 19, 1992State Formal Notice of Violation issued2 linked violations
May 19, 1992State Public Notification requested5 linked violations

Common questions

Is DYERSVILLE MUNICIPAL WATER CO required to publish a Consumer Confidence Report?: Yes. DYERSVILLE MUNICIPAL WATER CO 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 DYERSVILLE MUNICIPAL WATER CO’s next Consumer Confidence Report due?: DYERSVILLE MUNICIPAL WATER CO’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DYERSVILLE MUNICIPAL WATER CO have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for DYERSVILLE MUNICIPAL WATER CO.
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

DYERSVILLE MUNICIPAL WATER CO

563-875-7724

DYERSVILLE, IA 52040