The Groundwater Protection Rule is based on the
The Groundwater Protection Rule is based on the Minnesota Nitrogen Fertilizer Management Plan. The NFMP outlines the state strategy for preventing contamination and responding to elevated nitrate from fertilizer in groundwater. The rule restricts fall application of nitrogen fertilizer in areas vulnerable to contamination and outlines steps to reduce the severity of the problem in areas where nitrate in public water supply wells is already elevated.
