Federal § 319 Grant
Idaho DEQ’s §319 grant funds projects that scientifically reduce nonpoint source pollution and improve water quality in Idaho’s lakes, rivers, streams, and aquifers.
Funder: Idaho Department of Environmental Quality
Due Dates: April 20, 2026 (application period opens) | July 17, 2026 (full application deadline)
Funding Amounts: Up to $250,000 per project (three-year project period) | Minimum 40% local match required
Summary: Supports projects in Idaho that reduce nonpoint source pollution and improve water quality in lakes, rivers, and aquifers.
Key Information: Applications must be submitted via AmpliFund; indirect costs capped at 15% MTDC starting 2026.
Description
This grant, administered by the Idaho Department of Environmental Quality (IDEQ), provides funding for projects that address nonpoint source (NPS) pollution throughout Idaho. Established under the Clean Water Act § 319, the program targets activities that reduce pollutant loads and measurably improve water quality in lakes, streams, rivers, and aquifers. Eligible project types include those addressing agricultural runoff, urban stormwater, transportation, forestry, mining, groundwater, and habitat modification—excluding activities covered by an Idaho Pollutant Discharge Elimination System (IPDES) permit. Projects that are ready to implement, involve multiple partners, leverage additional funding, and target pollutants identified in Total Maximum Daily Loads (TMDLs) are prioritized.
