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

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

CHELSEA 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.

CHELSEA, IA · Tama County

CHELSEA WATER SUPPLY Water System

Consumer Confidence Report status

CHELSEA 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 1 item for CHELSEA WATER SUPPLY that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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): IA8609019
System type: Community Water System
Population served: 229
Service connections: 130
Ownership: local government
Water source: groundwater (wells)

CHELSEA WATER SUPPLY is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 229 people from groundwater.

As of August 1, 2026, its federal record holds 4 entries between 2020 and 2025, of which 1 remains open; none are health-based.

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 Lead and Copper Rule, the Public Notice Rule and Revised PN Rule, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
June 1, 2025
Unaddressed
Public Notification Violation for NPDWR Violation
—
Public Notice
September 14, 2024 – July 10, 2025
Resolved
Monitoring and Reporting (DBP)
—
TTHM
May 1, 2024 – May 31, 2024
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2020 – March 10, 2020
Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
June 1, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
September 14, 2024 – July 10, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
May 1, 2024 – May 31, 2024	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2020 – March 10, 2020	Lead Consumer Notice	Lead and Copper Rule	—	Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Enforcement actions

December 2, 2025State Formal Notice of Violation issued1 linked violation
December 2, 2025State Public Notification requested1 linked violation
July 10, 2025State Compliance achieved2 linked violations
June 25, 2025State Formal Notice of Violation issued1 linked violation
August 14, 2024State Compliance achieved4 linked violations
July 22, 2024State Public Notification requested2 linked violations
July 22, 2024State Formal Notice of Violation issued1 linked violation
July 22, 2024State Formal Notice of Violation issued1 linked violation
July 22, 2024State Public Notification requested1 linked violation
June 10, 2024State Formal Notice of Violation issued1 linked violation
June 10, 2024State Public Notification requested1 linked violation
July 14, 2022State Intentional no-action4 linked violations
July 14, 2022State Violation/Reminder Notice2 linked violations
April 25, 2022State Public Notification received2 linked violations
April 25, 2022State Public Notification received2 linked violations
March 29, 2022State Compliance achieved2 linked violations
March 29, 2022State Compliance achieved2 linked violations
January 19, 2022State Public Notification requested2 linked violations
January 31, 2020State Formal Notice of Violation issued2 linked violations
June 26, 2013State Compliance achieved6 linked violations
June 19, 2013State Public Notification requested3 linked violations
September 24, 1993State Public Notification requested1 linked violation
November 23, 1988State Formal Notice of Violation issued1 linked violation
November 23, 1988State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
October 31, 1988State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
October 11, 1988State Compliance achievedgeneral compliance action — not tied to a specific violation on record
October 11, 1988State Compliance achievedgeneral compliance action — not tied to a specific violation on record
September 30, 1984Federal issued Formal Notice of Violationgeneral 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 Unresolved1 linked violation

Common questions

Is CHELSEA WATER SUPPLY required to publish a Consumer Confidence Report?: Yes. CHELSEA 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 CHELSEA WATER SUPPLY’s next Consumer Confidence Report due?: CHELSEA WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CHELSEA WATER SUPPLY have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 1 item for CHELSEA WATER SUPPLY that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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

CHELSEA WATER SUPPLY

319-231-3577

CHELSEA, IA 52215