Is DEFIANCE WATER DEPARTMENT required to publish a Consumer Confidence Report?

Yes. DEFIANCE WATER DEPARTMENT 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 DEFIANCE WATER DEPARTMENT’s next Consumer Confidence Report due?

DEFIANCE WATER DEPARTMENT’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.

DEFIANCE, IA · Shelby County

DEFIANCE WATER DEPARTMENT Water System

Consumer Confidence Report status

DEFIANCE WATER DEPARTMENT 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 DEFIANCE WATER DEPARTMENT.

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): IA8315018
System type: Community Water System
Population served: 250
Service connections: 145
Ownership: local government
Water source: groundwater (wells)

DEFIANCE WATER DEPARTMENT is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 250 people from groundwater.

As of August 1, 2026, its federal record holds 17 entries between 2001 and 2024, all of which EPA lists as closed.

Of the 17, 15 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 volatile organic chemicals, synthetic organic chemicals, and the Total Coliform Rules.

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
May 1, 2024 – May 31, 2024
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022 – September 9, 2022
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – October 17, 2013
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2013 – July 31, 2013
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2013 – May 31, 2013
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2009 – April 30, 2009
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
April 1, 2008 – June 30, 2008
Resolved
Monitoring, Regular
—
Carbon tetrachloride
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
2,4,5-TP
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
Ethylbenzene
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
Dalapon
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
October 1, 2001 – September 30, 2007
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
May 1, 2024 – May 31, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2022 – September 9, 2022	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2013 – October 17, 2013	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2013 – July 31, 2013	Monitoring and Reporting (DBP)	TTHM	—	Resolved
May 1, 2013 – May 31, 2013	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2009 – April 30, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2008 – June 30, 2008	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	Carbon tetrachloride	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	2,4,5-TP	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	Dalapon	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

October 24, 2024State Compliance achieved2 linked violations
June 19, 2024State Formal Notice of Violation issued1 linked violation
June 10, 2024State Compliance achieved3 linked violations
February 7, 2024State Compliance achieved2 linked violations
July 26, 2023State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
May 1, 2023State Compliance achieved1 linked violation
September 9, 2022State Compliance achieved3 linked violations
September 9, 2022State Public Notification received1 linked violation
May 10, 2021State Public Notification received3 linked violations
February 17, 2021State Formal Notice of Violation issued1 linked violation
September 30, 2013State Public Notification received2 linked violations
September 19, 2013State Formal Notice of Violation issued2 linked violations
September 19, 2013State Public Notification requested2 linked violations
September 19, 2013State Public Notification requested2 linked violations
June 25, 2013State Formal Notice of Violation issued24 linked violations
January 6, 2003State Public Notification received10 linked violations
December 19, 2002State Formal Notice of Violation issued3 linked violations
December 19, 2002State Public Notification requested1 linked violation
April 23, 1993State Public Notification requested3 linked violations
April 23, 1993State Formal Notice of Violation issued3 linked violations
April 23, 1993State Formal Notice of Violation issued2 linked violations
January 1, 1988State Compliance achievedgeneral compliance action — not tied to a specific violation on record
November 1, 1987State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
November 1, 1987State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
February 19, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
January 26, 1982State Unresolved1 linked violation

Common questions

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

DEFIANCE WATER DEPARTMENT

712-748-3430

DEFIANCE, IA 51527