SAINT CHARLES, IA · Madison County

SAINT CHARLES WATER SUPPLY Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of December 20, 2006. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Madison County, IA.

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): IA6161031
System type: Community Water System
Population served: 694
Service connections: 303
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

SAINT CHARLES WATER SUPPLY is one of 403 community water systems in Iowa in the 501 to 3,300 people size category, formerly serving 694 people from surface water.

EPA's federal records list this system as inactive in 2006; the record below is historical.

As of August 1, 2026, its federal record holds 5 entries between 1996 and 2006, all of which EPA lists as closed. Nothing has been added since 2006.

Of the 5, 1 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 Stage 1 Disinfectants and Disinfection Byproducts Rule and the Total Coliform Rules.

Violation history

Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2006 – June 30, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2006 – March 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2005 – September 30, 2005
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1996 – August 31, 1996
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
August 1, 1996 – August 31, 1996
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2006 – June 30, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2006 – March 31, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2005 – September 30, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
August 1, 1996 – August 31, 1996	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 1996 – August 31, 1996	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

December 20, 2006State Compliance achieved4 linked violations
November 22, 2006State Public Notification received1 linked violation
March 27, 2006State Public Notification requested2 linked violations
December 5, 2005State Public Notification requested13 linked violations
December 5, 2005State Formal Notice of Violation issued41 linked violations
March 4, 2005State Public Notification requested5 linked violations
September 23, 1996State Compliance achieved15 linked violations
September 23, 1996State Formal Notice of Violation issued15 linked violations
September 3, 1996State Public Notification requested6 linked violations
February 7, 1989State Compliance achievedgeneral compliance action — not tied to a specific violation on record
February 7, 1989State Compliance achievedgeneral compliance action — not tied to a specific violation on record
January 17, 1989State Formal Notice of Violation issued1 linked violation
January 17, 1989State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
February 19, 1988State Formal Notice of Violation issued1 linked violation
February 19, 1988State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
February 19, 1988State Formal Notice of Violation issued1 linked violation
January 4, 1988State Compliance achieved1 linked violation

Last known contact on file (system is inactive)

ST CHARLES WATER SUPPLY

641-396-2545

SAINT CHARLES, IA 50240