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

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

MONDAMIN 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.

MARSHALLTOWN, IA · Harrison County

MONDAMIN WATER SUPPLY Water System

Consumer Confidence Report status

MONDAMIN 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 MONDAMIN 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): IA4349094
System type: Community Water System
Population served: 339
Service connections: 185
Ownership: local government
Water source: groundwater (wells)

MONDAMIN WATER SUPPLY is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 339 people from groundwater.

As of August 1, 2026, its federal record holds 11 entries between 2002 and 2017, all of which EPA lists as closed. Nothing has been added since 2017.

All 11 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 synthetic organic chemicals, the Radionuclides and Revised Rad Rule, and the Stage 1 Disinfectants and Disinfection Byproducts Rule.

Violation history

Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 2017 – March 31, 2026
Archived
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2010 – August 8, 2010
Resolved
Monitoring, Regular
—
Simazine
April 1, 2002 – March 31, 2008
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
April 1, 2002 – March 31, 2008
Resolved
Monitoring, Regular
—
Atrazine
April 1, 2002 – March 31, 2008
Resolved
Monitoring, Regular
—
LASSO
April 1, 2002 – March 31, 2008
Resolved
Monitoring, Regular
—
2,4-D
April 1, 2002 – March 31, 2008
Resolved
Monitoring, Regular
—
2,4,5-TP
April 1, 2002 – March 31, 2008
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
April 1, 2002 – March 31, 2008
Resolved
Monitoring, Regular
—
Pentachlorophenol
April 1, 2002 – March 31, 2008
Resolved
Monitoring, Regular
—
Dalapon
April 1, 2002 – March 31, 2008
Resolved

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

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2017 – March 31, 2026	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
July 1, 2010 – August 8, 2010	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2002 – March 31, 2008	Monitoring, Regular	Simazine	—	Resolved
April 1, 2002 – March 31, 2008	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
April 1, 2002 – March 31, 2008	Monitoring, Regular	Atrazine	—	Resolved
April 1, 2002 – March 31, 2008	Monitoring, Regular	LASSO	—	Resolved
April 1, 2002 – March 31, 2008	Monitoring, Regular	2,4-D	—	Resolved
April 1, 2002 – March 31, 2008	Monitoring, Regular	2,4,5-TP	—	Resolved
April 1, 2002 – March 31, 2008	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
April 1, 2002 – March 31, 2008	Monitoring, Regular	Pentachlorophenol	—	Resolved
April 1, 2002 – March 31, 2008	Monitoring, Regular	Dalapon	—	Resolved

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

Enforcement actions

January 15, 2025State Public Notification received1 linked violation
October 28, 2024State Compliance achieved1 linked violation
October 18, 2024State Public Notification requested1 linked violation
October 18, 2024State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
October 18, 2024State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 18, 2024State Formal Notice of Violation issued1 linked violation
March 3, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 3, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 3, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 3, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 3, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 3, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 3, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 3, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 3, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 3, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 3, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 3, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 3, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
October 18, 2022State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
October 18, 2022State Public Notification requested1 linked violation
October 18, 2022State Formal Notice of Violation issued1 linked violation
October 18, 2022State Public Notification requested1 linked violation
May 3, 2019State Public Notification received2 linked violations
November 16, 2018State Formal Notice of Violation issued1 linked violation
June 1, 2015State Compliance achieved3 linked violations
June 30, 2011State Public Notification received3 linked violations
October 19, 2010State Administrative/Compliance Order without penalty issued1 linked violation
June 15, 1998State Formal Notice of Violation issued3 linked violations
August 26, 1996State Public Notification received2 linked violations
July 22, 1996State Public Notification requested1 linked violation
July 22, 1996State Formal Notice of Violation issued2 linked violations
December 30, 1988State Formal Notice of Violation issued1 linked violation
November 23, 1988State 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
November 14, 1988State Compliance achievedgeneral compliance action — not tied to a specific violation on record
November 14, 1988State Compliance achievedgeneral compliance action — not tied to a specific violation on record
November 14, 1988State Compliance achieved9 linked violations
November 3, 1988State Public Notification requested2 linked violations
November 3, 1988State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record

Common questions

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

MONDAMIN WATER SUPPLY

712-420-5313

MARSHALLTOWN, IA 50158