Is CASTANA MUNICIPAL WATER SUPPLY required to publish a Consumer Confidence Report?

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

CASTANA MUNICIPAL 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.

CASTANA, IA · Monona County

CASTANA MUNICIPAL WATER SUPPLY Water System

Consumer Confidence Report status

CASTANA MUNICIPAL 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 CASTANA MUNICIPAL 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): IA6715083
System type: Community Water System
Population served: 103
Service connections: 85
Ownership: local government
Water source: groundwater (wells)

CASTANA MUNICIPAL WATER SUPPLY is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 103 people from groundwater.

As of August 1, 2026, its federal record holds 36 entries between 1986 and 2021, all of which EPA lists as closed. Nothing has been added since 2021.

Of the 36, 30 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 Total Coliform Rules, synthetic organic chemicals, and inorganic chemicals.

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2021 – September 16, 2021
Resolved
Failure to Conduct Assessment Monitoring
—
E. COLI
August 1, 2020 – August 31, 2020
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
August 1, 2020 – August 31, 2020
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2020 – July 31, 2020
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2020 – July 31, 2020
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
July 1, 2020 – July 31, 2020
Resolved
Monitoring, Regular
—
Nitrate
July 1, 2020 – July 31, 2020
Resolved
Failure to Conduct Assessment Monitoring
—
E. COLI
July 1, 2020 – July 31, 2020
Resolved
Failure to Conduct Assessment Monitoring
—
E. COLI
January 1, 2020 – January 31, 2020
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
April 1, 2019 – April 30, 2019
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
June 1, 2017 – September 18, 2018
Resolved
Monitoring, Regular
—
Nitrate
March 1, 2015 – March 31, 2015
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2015 – March 31, 2015
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
September 1, 2013 – September 30, 2013
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2013 – September 30, 2013
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2013 – December 31, 2015
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2013 – December 31, 2015
Resolved
Monitoring, Regular
—
Simazine
January 1, 2013 – December 31, 2015
Resolved
Monitoring, Regular
—
Picloram
January 1, 2013 – December 31, 2015
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2013 – December 31, 2015
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2013 – December 31, 2015
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2013 – December 31, 2015
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2013 – December 31, 2015
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2013 – December 31, 2015
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2012 – January 31, 2012
Resolved
Monitoring, Regular
—
Nitrate
July 1, 2006 – July 31, 2006
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1999 – May 31, 1999
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
September 1, 1997 – September 30, 1997
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 1997 – January 31, 1997
Resolved
Monitoring, Regular
—
Nitrate
May 1, 1995 – May 31, 1995
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
October 1, 1994 – October 31, 1994
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1993 – March 31, 1993
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1992 – August 31, 1992
Resolved
Monitoring, Regular
—
Nitrate
September 1, 1989 – September 30, 1989
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 1988 – September 30, 1992
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
April 1, 1986 – March 31, 1989
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2021 – September 16, 2021	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
August 1, 2020 – August 31, 2020	Failure to Conduct Assessment Monitoring	E. COLI	—	Resolved
August 1, 2020 – August 31, 2020	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2020 – July 31, 2020	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2020 – July 31, 2020	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2020 – July 31, 2020	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2020 – July 31, 2020	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2020 – July 31, 2020	Failure to Conduct Assessment Monitoring	E. COLI	—	Resolved
January 1, 2020 – January 31, 2020	Failure to Conduct Assessment Monitoring	E. COLI	—	Resolved
April 1, 2019 – April 30, 2019	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
June 1, 2017 – September 18, 2018	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
March 1, 2015 – March 31, 2015	Monitoring, Regular	Nitrate	—	Resolved
March 1, 2015 – March 31, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 2013 – September 30, 2013	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2013 – September 30, 2013	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2013 – December 31, 2015	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2013 – December 31, 2015	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2013 – December 31, 2015	Monitoring, Regular	Simazine	—	Resolved
January 1, 2013 – December 31, 2015	Monitoring, Regular	Picloram	—	Resolved
January 1, 2013 – December 31, 2015	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2013 – December 31, 2015	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2013 – December 31, 2015	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2013 – December 31, 2015	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2013 – December 31, 2015	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2012 – January 31, 2012	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2006 – July 31, 2006	Monitoring, Regular	Nitrate	—	Resolved
May 1, 1999 – May 31, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1997 – September 30, 1997	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 1997 – January 31, 1997	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
May 1, 1995 – May 31, 1995	Monitoring, Regular	Nitrate	—	Resolved
October 1, 1994 – October 31, 1994	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Resolved
January 1, 1993 – March 31, 1993	Monitoring, Regular	Carbon tetrachloride	—	Resolved
August 1, 1992 – August 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1989 – September 30, 1989	Monitoring, Regular	Nitrate	—	Resolved
October 1, 1988 – September 30, 1992	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
April 1, 1986 – March 31, 1989	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

October 29, 2021State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 16, 2021State Public Notification received1 linked violation
September 16, 2021State Public Notification received1 linked violation
September 16, 2021State Compliance achieved1 linked violation
August 26, 2021State Formal Notice of Violation issued1 linked violation
July 21, 2021State Compliance achieved1 linked violation
July 21, 2021State Compliance achieved1 linked violation
February 11, 2021State Compliance achievedgeneral compliance action — not tied to a specific violation on record
February 11, 2021State Compliance achievedgeneral compliance action — not tied to a specific violation on record
January 19, 2021State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 2, 2020State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
December 2, 2020State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
November 4, 2020State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
October 31, 2020State Public Notification received1 linked violation
October 31, 2020State Public Notification received1 linked violation
October 31, 2020State Public Notification received1 linked violation
October 31, 2020State Compliance achieved1 linked violation
October 31, 2020State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
October 31, 2020State Public Notification received1 linked violation
October 31, 2020State Public Notification received1 linked violation
October 31, 2020State Public Notification received1 linked violation
October 31, 2020State Public Notification received17 linked violations
October 31, 2020State Public Notification received1 linked violation
October 31, 2020State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
October 29, 2020State Compliance achieved1 linked violation
October 29, 2020State Compliance achieved1 linked violation
October 29, 2020State Compliance achieved1 linked violation
October 28, 2020State Compliance achieved1 linked violation
October 28, 2020State Compliance achieved1 linked violation
October 28, 2020State Compliance achieved1 linked violation
October 27, 2020State Formal Notice of Violation issued1 linked violation
October 27, 2020State Public Notification requested1 linked violation
October 27, 2020State Public Notification requested1 linked violation
October 27, 2020State Formal Notice of Violation issued1 linked violation
October 27, 2020State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 27, 2020State Formal Notice of Violation issued1 linked violation
October 27, 2020State Public Notification requested1 linked violation
October 27, 2020State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
October 26, 2020State Compliance achieved1 linked violation
October 26, 2020State Compliance achievedgeneral compliance action — not tied to a specific violation on record
October 26, 2020State Compliance achievedgeneral compliance action — not tied to a specific violation on record
October 26, 2020State Compliance achievedgeneral compliance action — not tied to a specific violation on record
October 26, 2020State Compliance achieved2 linked violations
September 17, 2020State Formal Notice of Violation issued1 linked violation
September 17, 2020State Formal Notice of Violation issued1 linked violation
September 17, 2020State Public Notification requested1 linked violation
September 17, 2020State Public Notification requested1 linked violation
September 17, 2020State Public Notification requested1 linked violation
September 17, 2020State Formal Notice of Violation issued1 linked violation
September 17, 2020State Public Notification requested1 linked violation
September 17, 2020State Formal Notice of Violation issued1 linked violation
September 17, 2020State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
September 17, 2020State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 17, 2020State Formal Notice of Violation issued1 linked violation
September 17, 2020State Public Notification requested2 linked violations
September 10, 2020State Formal Notice of Violation issued1 linked violation
August 25, 2020State Public Notification requested3 linked violations
August 25, 2020State Formal Notice of Violation issued4 linked violations
August 25, 2020State Formal Notice of Violation issued4 linked violations
March 5, 2020State Public Notification received1 linked violation
March 5, 2020State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
February 25, 2020State Compliance achieved1 linked violation
February 20, 2020State Formal Notice of Violation issued1 linked violation
February 20, 2020State Formal Notice of Violation issued2 linked violations
February 20, 2020State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
February 20, 2020State Public Notification requested1 linked violation
June 26, 2019State Public Notification received1 linked violation
May 17, 2019State Public Notification requested2 linked violations
May 17, 2019State Formal Notice of Violation issued1 linked violation
September 18, 2018State Compliance achieved1 linked violation
July 12, 2018State Public Notification received1 linked violation
March 8, 2018State Compliance achieved2 linked violations
March 8, 2018State Compliance achieved1 linked violation
February 19, 2018State Formal Notice of Violation issued1 linked violation
February 19, 2018State Violation/Reminder Notice1 linked violation
January 12, 2018State Administrative/Compliance Order without penalty issued1 linked violation
November 17, 2017State Public Notification requested1 linked violation
November 17, 2017State Formal Notice of Violation issued1 linked violation
October 30, 2017State Compliance achieved1 linked violation
October 18, 2017State Public Notification requested1 linked violation
October 18, 2017State Formal Notice of Violation issued1 linked violation
April 20, 2017State Public Notification received1 linked violation
April 20, 2017State Public Notification received1 linked violation
April 20, 2017State Public Notification received1 linked violation
April 20, 2017State Public Notification received1 linked violation
April 20, 2017State Public Notification received1 linked violation
April 20, 2017State Public Notification received1 linked violation
April 20, 2017State Public Notification received1 linked violation
April 20, 2017State Public Notification received1 linked violation
April 20, 2017State Public Notification received1 linked violation
April 20, 2017State Public Notification received1 linked violation
April 20, 2017State Public Notification received1 linked violation
April 20, 2017State Public Notification received1 linked violation
March 21, 2016State Compliance achieved1 linked violation
March 21, 2016State Compliance achieved1 linked violation
March 21, 2016State Compliance achieved1 linked violation
March 21, 2016State Compliance achieved1 linked violation
March 21, 2016State Compliance achieved1 linked violation
March 21, 2016State Compliance achieved1 linked violation
March 21, 2016State Compliance achieved1 linked violation
March 21, 2016State Compliance achieved1 linked violation
March 21, 2016State Compliance achieved1 linked violation
March 21, 2016State Compliance achieved1 linked violation
March 21, 2016State Compliance achieved1 linked violation
March 21, 2016State Compliance achieved1 linked violation
February 23, 2016State Public Notification requested1 linked violation
February 23, 2016State Formal Notice of Violation issued1 linked violation
February 23, 2016State Public Notification requested1 linked violation
February 23, 2016State Public Notification requested1 linked violation
February 23, 2016State Formal Notice of Violation issued1 linked violation
February 23, 2016State Formal Notice of Violation issued1 linked violation
February 23, 2016State Public Notification requested1 linked violation
February 23, 2016State Public Notification requested1 linked violation
February 23, 2016State Formal Notice of Violation issued1 linked violation
February 23, 2016State Public Notification requested1 linked violation
February 23, 2016State Formal Notice of Violation issued1 linked violation
February 23, 2016State Formal Notice of Violation issued1 linked violation
February 23, 2016State Public Notification requested1 linked violation
February 23, 2016State Public Notification requested1 linked violation
February 23, 2016State Formal Notice of Violation issued1 linked violation
February 23, 2016State Public Notification requested1 linked violation
February 23, 2016State Formal Notice of Violation issued1 linked violation
February 23, 2016State Public Notification requested1 linked violation
February 23, 2016State Formal Notice of Violation issued1 linked violation
February 23, 2016State Public Notification requested1 linked violation
February 23, 2016State Formal Notice of Violation issued1 linked violation
February 23, 2016State Formal Notice of Violation issued1 linked violation
February 23, 2016State Public Notification requested1 linked violation
February 23, 2016State Formal Notice of Violation issued1 linked violation
August 19, 2015State Public Notification received1 linked violation
August 19, 2015State Public Notification received1 linked violation
April 20, 2015State Compliance achieved1 linked violation
April 20, 2015State Compliance achieved1 linked violation
April 16, 2015State Formal Notice of Violation issued1 linked violation
April 16, 2015State Public Notification requested1 linked violation
April 16, 2015State Formal Notice of Violation issued1 linked violation
April 16, 2015State Public Notification requested1 linked violation
October 29, 2013State Compliance achieved1 linked violation
October 29, 2013State Compliance achieved1 linked violation
October 1, 2013State Public Notification received1 linked violation
September 30, 2013State Formal Notice of Violation issued2 linked violations
September 30, 2013State Public Notification requested2 linked violations
September 26, 2013State Violation/Reminder Notice1 linked violation
August 27, 2013State Compliance achieved2 linked violations
July 5, 2012State Formal Notice of Violation issued9 linked violations
February 27, 2012State Compliance achieved2 linked violations
September 10, 2007State Compliance achieved4 linked violations
September 10, 2007State Compliance achieved3 linked violations
August 18, 2006State Formal Notice of Violation issued2 linked violations
August 18, 2006State Public Notification requested1 linked violation
July 16, 2003State Public Notification requested3 linked violations
March 13, 2003State Public Notification received2 linked violations
February 24, 2003State Formal Notice of Violation issued2 linked violations
January 23, 2003State Formal Notice of Violation issued3 linked violations
January 23, 2003State Public Notification requested2 linked violations
January 23, 2003State Public Notification requested2 linked violations
January 14, 2003State Compliance achieved1 linked violation
November 18, 2002State Formal Notice of Violation issued3 linked violations
July 8, 1997State Compliance achieved5 linked violations
February 12, 1997State Public Notification received5 linked violations
January 28, 1997State Public Notification requested3 linked violations
August 18, 1995State Public Notification requested3 linked violations
July 28, 1995State Public Notification requested1 linked violation
July 28, 1995State Formal Notice of Violation issued1 linked violation
June 12, 1995State Compliance achieved1 linked violation
November 19, 1993State Formal Notice of Violation issued5 linked violations
November 19, 1993State Public Notification requested2 linked violations
November 19, 1993State Public Notification requested5 linked violations
October 28, 1993State Compliance achieved2 linked violations
October 28, 1993State Formal Notice of Violation issued8 linked violations
October 28, 1993State Formal Notice of Violation issued3 linked violations
October 28, 1993State Public Notification requested9 linked violations
October 28, 1993State Compliance achieved8 linked violations
October 25, 1993State Intentional no-action5 linked violations
May 14, 1993State Formal Notice of Violation issued4 linked violations
November 13, 1992State Public Notification requested3 linked violations
November 13, 1992State Public Notification requested2 linked violations
October 21, 1992State Public Notification received2 linked violations
October 19, 1992State Compliance achieved3 linked violations
October 19, 1992State Formal Notice of Violation issued3 linked violations
October 19, 1992State Public Notification requested2 linked violations
October 19, 1992State Formal Notice of Violation issued1 linked violation
October 6, 1992State Public Notification received6 linked violations
September 17, 1992State Compliance achieved1 linked violation
September 17, 1992State Compliance achieved4 linked violations
September 11, 1992State Public Notification requested2 linked violations
August 12, 1992State Compliance achieved4 linked violations
March 5, 1991State Public Notification received1 linked violation
March 5, 1991State Public Notification received3 linked violations
March 5, 1991State Public Notification received1 linked violation
August 30, 1990State Administrative/Compliance Order without penalty issued1 linked violation
August 29, 1990State Public Notification requested1 linked violation
March 27, 1990State Formal Notice of Violation issued1 linked violation
February 27, 1990State Compliance achievedgeneral compliance action — not tied to a specific violation on record
February 26, 1990State Compliance achievedgeneral compliance action — not tied to a specific violation on record
February 12, 1990State Formal Notice of Violation issued1 linked violation
February 12, 1990State Formal Notice of Violation issued2 linked violations
January 31, 1990State Compliance achieved2 linked violations
January 31, 1990State Compliance achieved1 linked violation
November 29, 1989State Formal Notice of Violation issued1 linked violation
August 4, 1989State Administrative/Compliance Order without penalty issued2 linked violations
June 19, 1989State Formal Notice of Violation issued2 linked violations
June 19, 1989State Public Notification requested3 linked violations
September 15, 1987State Compliance achievedgeneral compliance action — not tied to a specific violation on record

Common questions

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

CASTANA MUNICIPAL WATER SUPPLY

712-420-0529

CASTANA, IA 51010