The Iowa DNR administers the Public Drinking Water Program in Iowa under delegation of authority from the U.S. Environmental Protection Agency (EPA). The mission of the Public Drinking Water Program is to protect and enhance the public health, safety, and quality of life for all persons by ensuring public drinking water is safe to drink. This is accomplished by ensuring drinking water quality is routinely monitored, that public water system supplies are designed, operated, and maintained to minimize the possibility of contamination, and that the public is notified of any violations.
The 1996 reauthorized Safe Drinking Water Act required that states with primary enforcement responsibility for the drinking water program prepare an annual report on violations of national primary drinking water regulations by state public water supply systems, and make the report readily available to EPA and the public. The Iowa Drinking Water Program Annual Compliance Reports fulfill this requirement and are listed below by calendar year. The reports also include a description of the program activities, the public water supply system universe in Iowa, and trends in several key areas.
Public Drinking Water Program Annual Compliance Reports:
2023 Map of Active Public Water Supplies
2023 Map of Systems with Health-based Standard Violations
2023 Map of Systems with Major Monitoring or Reporting Violations
The following links will provide the selected reports, which are archived at the State Library.
2023 Iowa Public Drinking Water Program Annual Compliance Report
2022 Iowa Public Drinking Water Program Annual Compliance Report
2021 Iowa Public Drinking Water Program Annual Compliance Report
2020 Iowa Public Drinking Water Program Annual Compliance Report
2019 Iowa Public Drinking Water Program Annual Compliance Report
2018 Iowa Public Drinking Water Program Annual Compliance Report
2017 Iowa Public Drinking Water Program Annual Compliance Report
2016 Iowa Public Drinking Water Program Annual Compliance Report
2015 Iowa Public Drinking Water Program Annual Compliance Report
2014 Iowa Public Drinking Water Program Annual Compliance Report
2013 Iowa Public Drinking Water Program Annual Compliance Report
2012 Iowa Public Drinking Water Program Annual Compliance Report
2011 Iowa Public Drinking Water Program Annual Compliance Report
2010 Iowa Public Drinking Water Program Annual Compliance Report
2009 Iowa Public Drinking Water Program Annual Compliance Report
2008 Iowa Public Drinking Water Program Annual Compliance Report
2007 Iowa Public Drinking Water Program Annual Compliance Report
2006 Iowa Public Drinking Water Program Annual Compliance Report
2005 Iowa Public Drinking Water Program Annual Compliance Report
2004 Iowa Public Drinking Water Program Annual Compliance Report
2003 Iowa Public Drinking Water Program Annual Compliance Report
2002 Iowa Public Drinking Water Program Annual Compliance Report
2001 Iowa Public Drinking Water Program Annual Compliance Report
2000 Iowa Public Drinking Water Program Annual Compliance Report
1999 Iowa Public Drinking Water Program Annual Compliance Report
1998 Iowa Public Drinking Water Program Annual Compliance Report
1997 Iowa Public Drinking Water Program Annual Compliance Report
1996 Iowa Public Drinking Water Program Annual Compliance Report