DEFIANCE, IA · Shelby County

DEFIANCE WATER DEPARTMENT Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022 – September 9, 2022
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
January 1, 2021 – January 31, 2021
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2013 – July 31, 2013
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – October 17, 2013
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
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
—
Dalapon
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
Ethylbenzene
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
Dinoseb
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
Carbon tetrachloride
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
October 1, 2001 – September 30, 2007
Resolved
Monitoring, Regular
—
Toluene
October 1, 2001 – September 30, 2007
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2022 – September 9, 2022	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2021 – January 31, 2021	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2013 – July 31, 2013	Monitoring and Reporting (DBP)	TTHM	—	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)	Total Haloacetic Acids (HAA5)	—	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	Dalapon	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	Dinoseb	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	Carbon tetrachloride	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
October 1, 2001 – September 30, 2007	Monitoring, Regular	Toluene	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

October 24, 2024State Compliance achieved1 linked violation
June 19, 2024State Public Notification requested2 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 achieved2 linked violations
September 9, 2022State Public Notification received1 linked violation
May 10, 2021State Public Notification received2 linked violations
February 17, 2021State Formal Notice of Violation issued1 linked violation
February 1, 2021State Compliance achieved2 linked violations
July 13, 2015State Compliance achieved2 linked violations
July 13, 2015State Public Notification received2 linked violations
September 15, 2014State Formal Notice of Violation issued2 linked violations
July 7, 2014State Compliance achieved2 linked violations
September 19, 2013State Formal Notice of Violation issued2 linked violations
September 19, 2013State Formal Notice of Violation issued2 linked violations
September 19, 2013State Public Notification requested2 linked violations
September 3, 2013State Formal Notice of Violation issued3 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 issued2 linked violations
December 19, 2002State Public Notification requested1 linked violation
April 23, 1993State Public Notification requested3 linked violations
March 9, 1993State Compliance achieved3 linked violations
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

Contact

DEFIANCE WATER DEPARTMENT

712-748-3430

DEFIANCE, IA 51527