Is EARLHAM MUNICIPAL WATERWORKS required to publish a Consumer Confidence Report?

Yes. EARLHAM MUNICIPAL WATERWORKS 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 EARLHAM MUNICIPAL WATERWORKS’s next Consumer Confidence Report due?

EARLHAM MUNICIPAL WATERWORKS’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.

EARLHAM, IA · Madison County

EARLHAM MUNICIPAL WATERWORKS Water System

Consumer Confidence Report status

EARLHAM MUNICIPAL WATERWORKS 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 EARLHAM MUNICIPAL WATERWORKS.

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): IA6115097
System type: Community Water System
Population served: 1,446
Service connections: 520
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

EARLHAM MUNICIPAL WATERWORKS is one of 403 community water systems in Iowa in the 501 to 3,300 people size category, serving 1,446 people from surface water.

As of August 1, 2026, its federal record holds 13 entries between 1979 and 1990, all of which EPA lists as closed. Nothing has been added since 1990.

Of the 13, 7 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, the Radionuclides and Revised Rad Rule, and the Lead and Copper Rule.

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 1990 – December 23, 1991
Resolved
Monitoring, Regular
—
Selenium
April 1, 1988 – March 31, 1991
Resolved
Monitoring, Regular
—
Arsenic
April 1, 1988 – March 31, 1991
Resolved
Monitoring, Regular
—
Barium
April 1, 1988 – March 31, 1991
Resolved
Monitoring, Regular
—
Cadmium
April 1, 1988 – March 31, 1991
Resolved
Monitoring, Regular
—
Chromium
April 1, 1988 – March 31, 1991
Resolved
Monitoring, Regular
—
Fluoride
April 1, 1988 – March 31, 1991
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 1985 – September 30, 1986
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Fluoride
October 1, 1984 – September 30, 1985
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Combined Radium (-226 and -228)
October 1, 1983 – September 30, 1984
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Combined Radium (-226 and -228)
January 1, 1980 – December 31, 1983
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 23, 1979 – January 22, 1980
Archived
Maximum Contaminant Level Violation, Average
Health-based
Fluoride
January 23, 1979 – January 22, 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, 1990 – December 23, 1991	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
April 1, 1988 – March 31, 1991	Monitoring, Regular	Selenium	—	Resolved
April 1, 1988 – March 31, 1991	Monitoring, Regular	Arsenic	—	Resolved
April 1, 1988 – March 31, 1991	Monitoring, Regular	Barium	—	Resolved
April 1, 1988 – March 31, 1991	Monitoring, Regular	Cadmium	—	Resolved
April 1, 1988 – March 31, 1991	Monitoring, Regular	Chromium	—	Resolved
April 1, 1988 – March 31, 1991	Monitoring, Regular	Fluoride	—	Resolved
October 1, 1985 – September 30, 1986	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
October 1, 1984 – September 30, 1985	Maximum Contaminant Level Violation, Single Sample	Fluoride	Health-based	Archived
October 1, 1983 – September 30, 1984	Maximum Contaminant Level Violation, Single Sample	Combined Radium (-226 and -228)	Health-based	Archived
January 1, 1980 – December 31, 1983	Maximum Contaminant Level Violation, Single Sample	Combined Radium (-226 and -228)	Health-based	Resolved
January 23, 1979 – January 22, 1980	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
January 23, 1979 – January 22, 1980	Maximum Contaminant Level Violation, Average	Fluoride	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

February 4, 1992State Public Notification received3 linked violations
February 4, 1992State Public Notification received1 linked violation
February 4, 1992State Public Notification received1 linked violation
February 4, 1992State Public Notification received2 linked violations
February 4, 1992State Public Notification received4 linked violations
February 4, 1992State Public Notification received2 linked violations
January 16, 1992State Administrative/Compliance Order without penalty issued1 linked violation
January 16, 1992State Administrative/Compliance Order without penalty issued1 linked violation
January 16, 1992State Administrative/Compliance Order without penalty issued3 linked violations
January 16, 1992State Administrative/Compliance Order without penalty issued1 linked violation
January 16, 1992State Administrative/Compliance Order without penalty issued2 linked violations
December 23, 1991State Compliance achieved2 linked violations
December 23, 1991State Compliance achieved1 linked violation
December 12, 1991State Formal Notice of Violation issued3 linked violations
December 12, 1991State Formal Notice of Violation issued3 linked violations
December 12, 1991State Public Notification requested2 linked violations
December 12, 1991State Public Notification requested1 linked violation
December 12, 1991State Formal Notice of Violation issued1 linked violation
December 12, 1991State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 12, 1991State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
December 12, 1991State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
March 1, 1987State Public Notification requested1 linked violation
December 15, 1986State Compliance achieved2 linked violations
February 15, 1984State Public Notification requested3 linked violations
February 15, 1984State Formal Notice of Violation issued2 linked violations

Common questions

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

EARLHAM MUNICIPAL WATERWORKS

515-250-9558

EARLHAM, IA 50072