Is GARNAVILLO WATER SUPPLY required to publish a Consumer Confidence Report?

Yes. GARNAVILLO WATER SUPPLY 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 GARNAVILLO WATER SUPPLY’s next Consumer Confidence Report due?

GARNAVILLO WATER SUPPLY’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.

GARNAVILLO, IA · Clayton County

GARNAVILLO WATER SUPPLY Water System

Consumer Confidence Report status

GARNAVILLO WATER SUPPLY 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 GARNAVILLO WATER SUPPLY.

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): IA2234074
System type: Community Water System
Population served: 763
Service connections: 397
Ownership: local government
Water source: groundwater (wells)

GARNAVILLO WATER SUPPLY is one of 403 community water systems in Iowa in the 501 to 3,300 people size category, serving 763 people from groundwater.

As of August 1, 2026, its federal record holds 1 entry in 1985, all of which EPA lists as closed. Nothing has been added since 1985.

All 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 inorganic chemicals.

Violation history

Monitoring, Regular
—
Nitrate
October 1, 1985 – September 30, 1988
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 1985 – September 30, 1988	Monitoring, Regular	Nitrate	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

July 9, 2021State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 9, 2021State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 9, 2021State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 9, 2021State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 9, 2021State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 16, 2020State Compliance achieved7 linked violations
May 20, 2020State Public Notification requested1 linked violation
May 20, 2020State Public Notification requested2 linked violations
May 9, 2018State Public Notification received12 linked violations
May 9, 2018State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 20, 2017State Compliance achieved2 linked violations
June 20, 2017State Compliance achieved1 linked violation
May 24, 2017State Public Notification requested4 linked violations
May 24, 2017State Formal Notice of Violation issued1 linked violation
September 24, 2012State Public Notification received3 linked violations
March 6, 2012State Compliance achieved1 linked violation
February 21, 1989State Compliance achieved1 linked violation

Common questions

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

GARNAVILLO WATER SUPPLY

563-964-2331

GARNAVILLO, IA 52049