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Home > Ag Chemicals & Fertilizers > Fertilizers > Nutrient Management > 2015 Nitrogen Fertilizer Management Plan > Mitigation > Draft Groundwater Protection Rule > Part 1 of the Rule > Draft Vulnerable Groundwater Area Map

Draft Vulnerable Groundwater Area Map

The application of nitrogen fertilizer in the fall or on frozen soils will be restricted to quarter-sections of land where 50% or more of the quarter-section is in an area with vulnerable groundwater and in DWSMAs that have nitrate-nitrogen concentrations at or in excess of 5.4 mg/L nitrate-nitrogen. An area with vulnerable groundwater is an area where nitrate can move easily through soil and into groundwater, contaminating drinking water sources. Vulnerable areas for Part 1 of the rule are defined as:

An interactive map is currently under construction. Please check back for updates.

Map of Minnesota depicting vulnerable groundwater areas. This is a draft map for the Draft Groundwater Protection Rule. Vulnerable areas are concentrated in southeast MN and throughout central regions of the state.

MDA Contact

Larry Gunderson
Fertilizer Technical Unit Supervisor

Pesticide & Fertilizer Management Division