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

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

GRIMES 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.

GRIMES, IA · Polk County

GRIMES WATER SUPPLY Water System

Consumer Confidence Report status

GRIMES 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 GRIMES 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): IA7736011
System type: Community Water System
Population served: 17,809
Service connections: 6,245
Ownership: local government
Water source: groundwater (wells)

GRIMES WATER SUPPLY is one of 50 community water systems in Iowa in the 10,001 to 100,000 people size category, serving 17,809 people from groundwater.

As of August 1, 2026, its federal record holds 8 entries between 1979 and 2011, all of which EPA lists as closed. Nothing has been added since 2011.

Of the 8, 2 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 Radionuclides and Revised Rad Rule, and inorganic chemicals.

Violation history

Operations Report
—
No contaminant on record
October 1, 2011 – October 31, 2011
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
August 1, 2011 – August 31, 2011
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2011 – August 31, 2011
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
April 1, 1997 – June 30, 1997
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1985 – June 30, 1989
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Fluoride
October 1, 1983 – September 30, 1984
Archived
Maximum Contaminant Level Violation, Average
Health-based
Fluoride
September 14, 1979 – September 13, 1980
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 24, 1979 – April 23, 1980
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2011 – October 31, 2011	Operations Report	—	—	Resolved
August 1, 2011 – August 31, 2011	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 2011 – August 31, 2011	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 1997 – June 30, 1997	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
July 1, 1985 – June 30, 1989	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
October 1, 1983 – September 30, 1984	Maximum Contaminant Level Violation, Single Sample	Fluoride	Health-based	Archived
September 14, 1979 – September 13, 1980	Maximum Contaminant Level Violation, Average	Fluoride	Health-based	Archived
April 24, 1979 – April 23, 1980	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

June 17, 2021State Public Notification received2 linked violations
May 18, 2021State Formal Notice of Violation issued2 linked violations
May 18, 2021State Public Notification requested3 linked violations
April 15, 2021State Compliance achieved4 linked violations
November 5, 2011State Compliance achieved2 linked violations
August 14, 1989State Compliance achieved1 linked violation
January 30, 1989State Public Notification requested1 linked violation
February 18, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Common questions

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

GRIMES WATER SUPPLY

515-822-4501

GRIMES, IA 50111