Is ISU required to publish a Consumer Confidence Report?

Yes. ISU 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 ISU’s next Consumer Confidence Report due?

ISU’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.

AMES, IA · Story County

ISU Water System

Consumer Confidence Report status

ISU 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 ISU.

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): IA8503528
System type: Community Water System
Population served: 42,000
Service connections: 103
Ownership: state government
Water source: groundwater (wells)

ISU is among the 13 largest community water systems in Iowa, serving 42,000 people from groundwater.

As of August 1, 2026, its federal record holds 4 entries between 2005 and 2018, all of which EPA lists as closed. Nothing has been added since 2018.

Of the 4, 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 Stage 2 Disinfectants and Disinfection Byproducts Rule, inorganic chemicals, and the Total Coliform Rules.

Violation history

Monitoring, Regular
—
Nitrite
October 1, 2018 – September 30, 2019
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2013 – April 30, 2013
Resolved
Monitoring, Routine (IDSE)
—
TTHM
October 1, 2012 – October 31, 2012
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2005 – July 31, 2005
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2018 – September 30, 2019	Monitoring, Regular	Nitrite	—	Resolved
April 1, 2013 – April 30, 2013	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2012 – October 31, 2012	Monitoring, Routine (IDSE)	TTHM	—	Resolved
July 1, 2005 – July 31, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

November 8, 2023State Compliance achieved2 linked violations
October 19, 2023State Formal Notice of Violation issued2 linked violations
February 5, 2020State Public Notification received1 linked violation
November 6, 2019State Public Notification requested2 linked violations
July 2, 2014State Public Notification received2 linked violations
August 20, 2013State Formal Notice of Violation issued3 linked violations
August 20, 2013State Formal Notice of Violation issued3 linked violations
December 27, 2012State Public Notification requested2 linked violations
January 25, 2006State Compliance achieved10 linked violations
July 29, 2005State Public Notification received9 linked violations
July 8, 2005State Public Notification requested4 linked violations
July 23, 2004State Formal Notice of Violation issued10 linked violations
January 8, 1998State Compliance achieved3 linked violations
December 10, 1987State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 10, 1987State Formal Notice of Violation issued1 linked violation
November 2, 1987State Compliance achieved2 linked violations

Common questions

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

ISU

515-294-3769

AMES, IA 50011