Is LAKE CITY WATER SUPPLY required to publish a Consumer Confidence Report?

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

LAKE CITY 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.

LAKE CITY, IA · Calhoun County

LAKE CITY WATER SUPPLY Water System

Consumer Confidence Report status

LAKE CITY 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 LAKE CITY 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): IA1345043
System type: Community Water System
Population served: 1,731
Service connections: 845
Ownership: local government
Water source: groundwater (wells)

LAKE CITY WATER SUPPLY is one of 403 community water systems in Iowa in the 501 to 3,300 people size category, serving 1,731 people from groundwater.

As of August 1, 2026, its federal record holds 15 entries between 1993 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.

All 15 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 volatile organic chemicals, the Radionuclides and Revised Rad Rule, and the Total Coliform Rules.

Violation history

Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2015 – March 31, 2015
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2002 – June 30, 2002
Resolved
Monitoring, Regular
—
Nitrate
July 1, 2001 – June 30, 2002
Resolved
Monitoring, Regular
—
Nitrite
July 1, 1999 – June 30, 2000
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
Toluene
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
LASSO
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
Atrazine
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
Benzene
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 1993 – August 31, 1993
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2023 – December 31, 2023	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2015 – March 31, 2015	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
June 1, 2002 – June 30, 2002	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2001 – June 30, 2002	Monitoring, Regular	Nitrate	—	Resolved
July 1, 1999 – June 30, 2000	Monitoring, Regular	Nitrite	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	Toluene	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	Vinyl chloride	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	LASSO	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	Atrazine	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	Benzene	—	Resolved
August 1, 1993 – August 31, 1993	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

February 21, 2024State Public Notification requested2 linked violations
February 21, 2024State Public Notification requested2 linked violations
February 7, 2024State Compliance achieved2 linked violations
March 18, 2016State Public Notification received11 linked violations
September 15, 2015State Compliance achieved4 linked violations
September 15, 2015State Compliance achieved31 linked violations
April 24, 2015State Public Notification requested2 linked violations
April 24, 2015State Public Notification requested6 linked violations
August 1, 2002State Compliance achieved3 linked violations
August 1, 2002State Compliance achieved24 linked violations
July 24, 2002State Formal Notice of Violation issued6 linked violations
July 24, 2002State Formal Notice of Violation issued14 linked violations
September 6, 2000State Compliance achieved27 linked violations
September 6, 2000State Compliance achieved2 linked violations
September 6, 2000State Compliance achieved22 linked violations
September 6, 2000State Compliance achieved2 linked violations
September 6, 2000State Compliance achieved2 linked violations
September 6, 2000State Compliance achieved3 linked violations
September 6, 2000State Compliance achieved2 linked violations
September 6, 2000State Compliance achieved29 linked violations
August 21, 2000State Formal Notice of Violation issued3 linked violations
August 21, 2000State Public Notification requested5 linked violations
August 21, 2000State Public Notification requested6 linked violations
August 21, 2000State Public Notification requested6 linked violations
August 21, 2000State Public Notification requested3 linked violations
August 21, 2000State Public Notification requested5 linked violations
August 21, 2000State Public Notification requested3 linked violations
August 21, 2000State Public Notification requested5 linked violations
August 21, 2000State Public Notification requested3 linked violations
August 21, 2000State Public Notification requested4 linked violations
August 21, 2000State Formal Notice of Violation issued6 linked violations
August 21, 2000State Formal Notice of Violation issued5 linked violations
August 21, 2000State Formal Notice of Violation issued4 linked violations
August 21, 2000State Formal Notice of Violation issued2 linked violations
August 21, 2000State Formal Notice of Violation issued3 linked violations
August 21, 2000State Formal Notice of Violation issued2 linked violations
August 21, 2000State Formal Notice of Violation issued3 linked violations
August 21, 2000State Formal Notice of Violation issued2 linked violations
August 21, 2000State Formal Notice of Violation issued2 linked violations
October 20, 1997State Public Notification requested5 linked violations
October 15, 1997State Compliance achieved8 linked violations
August 25, 1997State Public Notification requested1 linked violation
August 25, 1997State Formal Notice of Violation issued1 linked violation
August 12, 1997State Compliance achieved1 linked violation
November 2, 1993State Public Notification received2 linked violations
October 15, 1993State Formal Notice of Violation issued2 linked violations
October 15, 1993State Public Notification requested1 linked violation
October 15, 1993State Formal Notice of Violation issued3 linked violations
January 21, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Common questions

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

LAKE CITY WATER SUPPLY

712-640-6401

LAKE CITY, IA 51449