Is SAINT MARYS WATER CORPORATION required to publish a Consumer Confidence Report?

Yes. SAINT MARYS WATER CORPORATION 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 SAINT MARYS WATER CORPORATION’s next Consumer Confidence Report due?

SAINT MARYS WATER CORPORATION’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.

SAINT CHARLES, IA · Warren County

SAINT MARYS WATER CORPORATION Water System

Consumer Confidence Report status

SAINT MARYS WATER CORPORATION 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 SAINT MARYS WATER CORPORATION.

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): IA9176019
System type: Community Water System
Population served: 121
Service connections: 69
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

SAINT MARYS WATER CORPORATION is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 121 people from surface water.

As of August 1, 2026, its federal record holds 10 entries between 1991 and 2018, all of which EPA lists as closed. Nothing has been added since 2018.

Of the 10, 3 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 Total Coliform Rules, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Consumer Confidence Rule.

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
December 1, 2018 – December 31, 2018
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
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
October 19, 1999 – November 30, 1999
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1997 – December 31, 1997
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
February 1, 1995 – February 28, 1995
Resolved
Monitoring, Regular
—
Carbon tetrachloride
October 1, 1993 – December 31, 1993
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1991 – August 31, 1991
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1991 – July 31, 1991
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
March 1, 1991 – March 31, 1991
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
December 1, 2018 – December 31, 2018	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	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
October 19, 1999 – November 30, 1999	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
December 1, 1997 – December 31, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 1995 – February 28, 1995	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Resolved
October 1, 1993 – December 31, 1993	Monitoring, Regular	Carbon tetrachloride	—	Resolved
August 1, 1991 – August 31, 1991	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 1991 – July 31, 1991	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
March 1, 1991 – March 31, 1991	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

May 16, 2019State Public Notification received1 linked violation
January 24, 2019State Compliance achieved2 linked violations
January 24, 2019State Compliance achieved1 linked violation
January 17, 2019State Public Notification requested1 linked violation
January 17, 2019State Formal Notice of Violation issued2 linked violations
September 26, 2007State Compliance achieved3 linked violations
September 26, 2007State Compliance achieved3 linked violations
April 11, 2006State Public Notification requested1 linked violation
March 6, 2006State Public Notification received3 linked violations
January 18, 2006State Public Notification requested2 linked violations
January 18, 2006State Formal Notice of Violation issued2 linked violations
September 30, 2005State Public Notification requested23 linked violations
February 23, 2000State Public Notification requested2 linked violations
February 23, 2000State Formal Notice of Violation issued1 linked violation
December 29, 1999State Formal Notice of Violation issued1 linked violation
November 30, 1999State Compliance achieved1 linked violation
June 5, 1996State Compliance achieved1 linked violation
May 16, 1996State Compliance achieved4 linked violations
March 26, 1996State Intentional no-action16 linked violations
February 15, 1996State Public Notification received15 linked violations
February 5, 1996State Public Notification requested5 linked violations
October 10, 1995State Public Notification received1 linked violation
September 22, 1995State Formal Notice of Violation issued1 linked violation
September 22, 1995State Public Notification requested1 linked violation
August 14, 1995State Compliance achieved1 linked violation
June 19, 1995State Public Notification requested4 linked violations
May 12, 1995State Public Notification received1 linked violation
April 28, 1995State Public Notification requested2 linked violations
April 28, 1995State Formal Notice of Violation issued1 linked violation
November 16, 1994State Public Notification received7 linked violations
September 30, 1994State Formal Notice of Violation issued3 linked violations
September 30, 1994State Formal Notice of Violation issued2 linked violations
November 29, 1991State Bilateral Compliance Agreement signed3 linked violations
September 25, 1991State Compliance achieved2 linked violations
March 21, 1991State Public Notification requested3 linked violations
February 28, 1991State Compliance achieved2 linked violations
January 29, 1991State Public Notification received3 linked violations

Common questions

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

SAINT MARYS WATER CORPORATION

515-442-3834

SAINT CHARLES, IA 50240