WHITTEMORE, IA · Humboldt County

OTTOSEN 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): IA4652011
System type: Community Water System
Population served: 41
Service connections: 31
Ownership: local government
Water source: groundwater (wells)

Violation history

Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1998 – September 30, 1998
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
December 1, 1992 – December 31, 1992
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
September 1, 1998 – September 30, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
December 1, 1992 – December 31, 1992	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

January 21, 2022State Public Notification received1 linked violation
November 30, 2021State Compliance achieved1 linked violation
October 19, 2021State Public Notification requested1 linked violation
April 16, 2021State Public Notification received2 linked violations
December 16, 2020State Public Notification requested2 linked violations
December 9, 2020State Compliance achieved4 linked violations
November 18, 2020State Public Notification requested1 linked violation
November 18, 2020State Formal Notice of Violation issued1 linked violation
September 25, 1998State Public Notification received1 linked violation
March 14, 1994State Compliance achieved4 linked violations
May 14, 1993State Public Notification requested7 linked violations
May 14, 1993State Public Notification requested3 linked violations
February 19, 1993State Public Notification requested3 linked violations
April 18, 1989State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
January 30, 1989State Administrative/Compliance Order without penalty issued2 linked violations
January 30, 1989State Administrative/Compliance Order without penalty issued1 linked violation
January 25, 1989State Compliance achieved1 linked violation
January 25, 1989State Compliance achieved1 linked violation
February 18, 1982State Unresolved1 linked violation

Contact

OTTOSEN WATER SUPPLY

515-320-1122

WHITTEMORE, IA 50598