After more than a decade, the Indiana Department of Environmental Management (IDEM) published a comprehensive annual report detailing the agency’s key performance indicators and highlights from 2025. This report is a high level summary of all the work and technical data reported by IDEM throughout the year and is available in an accessible narrative style format.
For those unfamiliar with IDEM, the report provides good insight into each of the offices within IDEM – air, land, and water as well as the program support available to Hoosier businesses and individuals.
IDEM Commissioner Clint Woods commented on the release of this report, published near Earth Day: “Our environment is a shared resource, and Hoosiers deserve transparency into the work being done to protect it. This report reflects the dedication of our almost 800 employees and the measurable progress Indiana continues to make in air quality, clean water, land protection, and environmental stewardship.”
Among the highlights related to water in the report, Indiana has:
- More than 32,000 miles of rivers and streams sampled, making Indiana a national leader in surface water monitoring coverage.
- Over 4,000 public water systems with 98.9% of Hoosiers who receive “Excellent” drinking water
- Reduced combined sewer overflow events by 71.3% since 2005, keeping our waterways clear of approximately 24.8 billion gallons of untreated sewage.
- Begun to implement new water cybersecurity requirements under a 2025 section of the Indiana Code.
Additionally, the report provides a nice summary of 2025 legislative activity that pertains to the agency and details how funding is obtained and allocated.
Be sure to check out the full report for more information on land and air activities and how IDEM can bring environmental outreach programs to your home, school or business!
