Is DOW CITY WATER WORKS required to publish a Consumer Confidence Report?

Yes. DOW CITY WATER WORKS 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 DOW CITY WATER WORKS’s next Consumer Confidence Report due?

DOW CITY WATER WORKS’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.

DOW CITY, IA · Crawford County

DOW CITY WATER WORKS Water System

Consumer Confidence Report status

DOW CITY WATER WORKS 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 DOW CITY WATER WORKS.

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): IA2427049
System type: Community Water System
Population served: 467
Service connections: 255
Ownership: local government
Water source: groundwater (wells)

DOW CITY WATER WORKS is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 467 people from groundwater.

As of August 1, 2026, its federal record holds 9 entries between 1979 and 2020, all of which EPA lists as closed. Nothing has been added since 2020.

Of the 9, 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 Total Coliform Rules, and synthetic organic chemicals.

Violation history

Monitoring, Regular
—
Nitrate
May 1, 2020 – May 31, 2020
Resolved
Monitoring, Regular
—
Nitrate
November 1, 2019 – November 30, 2019
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2019 – November 30, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
October 1, 1999 – December 31, 1999
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 1995 – January 31, 1995
Resolved
Monitoring, Regular
—
Nitrite
January 1, 1994 – January 31, 1994
Resolved
Monitoring, Regular
—
Antimony, Total
April 1, 1992 – March 31, 1995
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 1991 – March 31, 1995
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Selenium
November 20, 1979 – November 19, 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
May 1, 2020 – May 31, 2020	Monitoring, Regular	Nitrate	—	Resolved
November 1, 2019 – November 30, 2019	Monitoring, Regular	Nitrate	—	Resolved
November 1, 2019 – November 30, 2019	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 1999 – December 31, 1999	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
January 1, 1995 – January 31, 1995	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 1994 – January 31, 1994	Monitoring, Regular	Nitrite	—	Resolved
April 1, 1992 – March 31, 1995	Monitoring, Regular	Antimony, Total	—	Resolved
April 1, 1991 – March 31, 1995	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
November 20, 1979 – November 19, 1980	Maximum Contaminant Level Violation, Average	Selenium	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

August 5, 2020State Public Notification received1 linked violation
June 16, 2020State Formal Notice of Violation issued1 linked violation
June 16, 2020State Public Notification requested1 linked violation
June 9, 2020State Compliance achieved7 linked violations
April 6, 2020State Public Notification received1 linked violation
February 20, 2020State Formal Notice of Violation issued1 linked violation
February 10, 2020State Compliance achieved1 linked violation
December 30, 2019State Formal Notice of Violation issued2 linked violations
December 9, 2019State Compliance achieved3 linked violations
April 6, 2017State Compliance achieved23 linked violations
October 7, 2016State Formal Notice of Violation issued3 linked violations
October 7, 2016State Public Notification requested1 linked violation
January 6, 2005State Public Notification received5 linked violations
December 15, 2004State Public Notification requested8 linked violations
March 2, 1998State Compliance achieved3 linked violations
March 2, 1998State Compliance achieved1 linked violation
September 23, 1996State Compliance achieved6 linked violations
August 19, 1996State Formal Notice of Violation issued8 linked violations
August 5, 1996State Formal Notice of Violation issued2 linked violations
August 5, 1996State Public Notification requested3 linked violations
August 5, 1996State Public Notification requested2 linked violations
August 5, 1996State Formal Notice of Violation issued2 linked violations
August 5, 1996State Bilateral Compliance Agreement signed3 linked violations
August 5, 1996State Public Notification requested2 linked violations
August 5, 1996State Formal Notice of Violation issued2 linked violations
August 5, 1996State Public Notification requested1 linked violation
March 29, 1996State Public Notification requested10 linked violations
June 25, 1990State Compliance achievedgeneral compliance action — not tied to a specific violation on record
June 25, 1990State Compliance achieved1 linked violation
February 16, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Common questions

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

DOW CITY WATER WORKS

712-674-3350

DOW CITY, IA 51528