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

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

GRISWOLD 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.

GRISWOLD, IA · Cass County

GRISWOLD WATER SUPPLY Water System

Consumer Confidence Report status

GRISWOLD 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 GRISWOLD 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): IA1528010
System type: Community Water System
Population served: 1,008
Service connections: 543
Ownership: local government
Water source: groundwater (wells)

GRISWOLD WATER SUPPLY is one of 403 community water systems in Iowa in the 501 to 3,300 people size category, serving 1,008 people from groundwater.

As of August 1, 2026, its federal record holds 3 entries between 1988 and 2025, all of which EPA lists as closed.

All 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 and inorganic chemicals.

Violation history

Monitoring and Reporting (DBP)
—
TTHM
July 1, 2025 – July 31, 2025
Archived
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2024 – July 31, 2024
Archived
Monitoring, Check/Repeat/Confirmation
—
Nitrate
October 1, 1988 – December 31, 1988
Archived

Archived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025 – July 31, 2025	Monitoring and Reporting (DBP)	TTHM	—	Archived
July 1, 2024 – July 31, 2024	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
October 1, 1988 – December 31, 1988	Monitoring, Check/Repeat/Confirmation	Nitrate	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

September 22, 2025State Formal Notice of Violation issued1 linked violation
September 22, 2025State Formal Notice of Violation issued1 linked violation
September 22, 2025State Public Notification requested2 linked violations
April 14, 2025State Public Notification received1 linked violation
April 14, 2025State Public Notification received1 linked violation
September 26, 2024State Formal Notice of Violation issued1 linked violation
September 26, 2024State Formal Notice of Violation issued1 linked violation
September 26, 2024State Public Notification requested1 linked violation
September 26, 2024State Public Notification requested1 linked violation
March 15, 1993State Public Notification received25 linked violations
February 3, 1993State Compliance achieved4 linked violations
September 22, 1992State Public Notification received2 linked violations
September 16, 1992State Compliance achieved2 linked violations
September 11, 1992State Formal Notice of Violation issued2 linked violations
September 11, 1992State Public Notification requested2 linked violations
February 27, 1989State Intentional no-action2 linked violations
February 21, 1989State Public Notification requested1 linked violation
December 1, 1986State Compliance achievedgeneral compliance action — not tied to a specific violation on record
March 1, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
February 16, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
February 10, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
January 21, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Common questions

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

GRISWOLD WATER SUPPLY

712-778-2615

GRISWOLD, IA 51535