Indiana officials have released an updated statewide plan aimed at reducing nutrient pollution in waterways that feed into the Great Lakes and the Gulf of Mexico, highlighting both progress and persistent challenges in improving water quality.
The revised strategy, issued by the Indiana State Department of Agriculture (ISDA) in coordination with the Indiana Department of Environmental Management (IDEM), outlines steps to curb sediment and nutrient runoff from farms, wastewater systems and other sources. Known as the State Nutrient Reduction Strategy, the plan is intended to guide conservation efforts across Indiana while tracking measurable improvements in water health.
State officials said the update reflects years of data collection and on-the-ground conservation work, including increased adoption of soil health practices and edge-of-field measures designed to keep fertilizers and other pollutants out of rivers and streams.
“This updated strategy underscores the important work being done in land stewardship,” said Don Lamb, ISDA Director. “There have been many achievements since the start of the strategy, and updating it will strengthen our ability to reduce excess nutrients in our waterways.”
Excess nutrients such as nitrogen and phosphorus are a major driver of harmful algal blooms and hypoxia — low-oxygen conditions that can devastate aquatic ecosystems. Indiana’s waterways ultimately drain into larger systems, meaning local pollution can contribute to environmental problems far beyond the state’s borders.
Officials emphasized that the plan relies heavily on data to assess water quality trends and guide decision-making. “Indiana has put a premium on data to ensure we have a complete assessment of water health throughout the state,” said Clint Woods, IDEM Commissioner. He described the strategy as a “roadmap” for identifying problem areas and measuring long-term progress.
The updated plan also calls for expanded outreach to farmers, landowners and the public, encouraging voluntary conservation practices through state and federal incentive programs. It highlights the importance of collaboration among agencies and groups such as the Indiana Conservation Partnership, which helped guide the revision.
Among its priorities, the strategy seeks to raise awareness of best management practices on agricultural land, target high-priority watersheds, strengthen monitoring of regulated pollution sources, and improve accountability for conservation investments.
State officials acknowledged that improving impaired waterways remains a complex challenge, particularly as agricultural productivity and environmental concerns must be balanced. Still, they said the updated framework provides a clearer path forward for reducing nutrient loads and protecting Indiana’s water resources over time.
For more information and to view the full strategy, visit www.in.gov/isda/divisions/soil-conservation/indiana-state-nutrient-reduction-strategy/. Comments can be sent to ISDANutrientReduction@isda.in.gov.
