Is AMES WATER TREATMENT PLANT required to publish a Consumer Confidence Report?

Yes. AMES WATER TREATMENT PLANT 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 AMES WATER TREATMENT PLANT’s next Consumer Confidence Report due?

AMES WATER TREATMENT PLANT’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

AMES WATER TREATMENT PLANT Water System

Consumer Confidence Report status

AMES WATER TREATMENT PLANT 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 AMES WATER TREATMENT PLANT.

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): IA8503039
System type: Community Water System
Population served: 55,177
Service connections: 19,337
Ownership: local government
Water source: groundwater (wells)

AMES WATER TREATMENT PLANT is among the 11 largest community water systems in Iowa, serving 55,177 people from groundwater.

As of August 1, 2026, its federal record holds 4 entries between 1987 and 2013, all of which EPA lists as closed. Nothing has been added since 2013.

All 4 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, volatile organic chemicals, and the Total Coliform Rules.

Violation history

Monitoring and Reporting (DBP)
—
TTHM
April 1, 2013 – April 30, 2013
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
October 1, 1994 – September 30, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1993 – July 31, 1993
Resolved
Monitoring, Regular
—
Nitrate
July 1, 1987 – June 30, 1990
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2013 – April 30, 2013	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 1994 – September 30, 1995	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 1993 – July 31, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1987 – June 30, 1990	Monitoring, Regular	Nitrate	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

December 10, 2025State Public Notification received5 linked violations
October 22, 2025State Formal Notice of Violation issued3 linked violations
July 23, 2014State Public Notification received3 linked violations
August 20, 2013State Public Notification requested1 linked violation
August 20, 2013State Formal Notice of Violation issued3 linked violations
August 20, 2013State Formal Notice of Violation issued1 linked violation
August 20, 2013State Public Notification requested1 linked violation
July 11, 2013State Compliance achieved1 linked violation
November 28, 2005State Public Notification requested1 linked violation
November 28, 2005State Formal Notice of Violation issued1 linked violation
August 21, 1998State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 20, 1998State Formal Notice of Violation issued1 linked violation
October 25, 1993State Intentional no-action1 linked violation
October 25, 1993State Compliance achieved2 linked violations
October 25, 1993State Intentional no-action2 linked violations
November 2, 1990State Formal Notice of Violation issued1 linked violation
November 2, 1990State Public Notification requested2 linked violations

Common questions

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

AMES WATER TREATMENT PLANT

515-239-5150

AMES, IA 50010