FORT DODGE, IA · Webster County

CALLENDER WATER SUPPLY 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): IA9417063
System type: Community Water System
Population served: 371
Service connections: 188
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Nitrate
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2004 – December 31, 2009
Resolved
Monitoring, Regular
—
Nitrate
July 1, 1996 – June 30, 1997
Resolved
Notification, Public
—
Combined Radium (-226 and -228)
July 1, 1986 – September 30, 1986
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 1985 – September 30, 1986
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 1985 – March 31, 1989
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 1984 – September 30, 1985
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Combined Radium (-226 and -228)
October 1, 1983 – September 30, 1984
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Combined Radium (-226 and -228)
October 1, 1978 – September 30, 1982
Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2014 – December 31, 2014	Monitoring, Regular	Nitrate	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2004 – December 31, 2009	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
July 1, 1996 – June 30, 1997	Monitoring, Regular	Nitrate	—	Resolved
July 1, 1986 – September 30, 1986	Notification, Public	Combined Radium (-226 and -228)	—	Resolved
October 1, 1985 – September 30, 1986	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
April 1, 1985 – March 31, 1989	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
October 1, 1984 – September 30, 1985	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
October 1, 1983 – September 30, 1984	Maximum Contaminant Level Violation, Single Sample	Combined Radium (-226 and -228)	Health-based	Archived
October 1, 1978 – September 30, 1982	Maximum Contaminant Level Violation, Single Sample	Combined Radium (-226 and -228)	Health-based	Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

September 2, 2015State Compliance achieved4 linked violations
August 19, 2015State Formal Notice of Violation issued2 linked violations
January 16, 2015State Formal Notice of Violation issued3 linked violations
January 16, 2015State Public Notification requested4 linked violations
July 15, 2013State Public Notification received2 linked violations
February 26, 2013State Compliance achieved7 linked violations
February 26, 2013State Compliance achieved4 linked violations
December 12, 2012State Public Notification requested4 linked violations
November 20, 2012State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
August 29, 2012State Compliance achieved4 linked violations
February 6, 2012State Compliance achieved1 linked violation
November 17, 1997State Compliance achieved7 linked violations
December 4, 1996State Compliance achieved3 linked violations
August 23, 1993State Public Notification received3 linked violations
July 16, 1993State Public Notification requested2 linked violations
February 20, 1990State Compliance achieved13 linked violations
November 16, 1987State Formal Notice of Violation issued2 linked violations
March 1, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Contact

CALLENDER WATER SUPPLY

515-571-5070

FORT DODGE, IA 50501