Maps and Geospatial Data
Source Water Protection
Wellhead Protection Maps
| Example of DWSMA Map: | Maps of approved Drinking Water Management Supply Areas (DWSMAs) are available as part of the Source Water Assessments of Public Water Systems for community and nontransient noncommunity public water systems. |
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Nitrate Probability Ranking Maps and Reports
| Example of Nitrate Probability Ranking Map: | The Minnesota Department of Health (MDH) has developed nitrate-nitrogen (nitrate) probability maps to assist in state and local water quality planning efforts. These maps identify areas of a county with relatively high, moderate, and low probability of having elevated nitrate concentrations in ground water. The maps can be found within the reports found at: |
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Geospatial Data Files
| Name | Date | Filetype | Map | Metadata |
| Class V Sensitivity | DEC-20-2005 | Shapefile | Map (PDF: 616KB/1 page) | Metadata |
| Drinking Water Supply Management Areas | FEB-23-2012 | Shapefile | Map (PDF: 345KB/1 page) | Metadata |
| DWSMA for Surface Water | MAY-20-2009 | Shapefile | Map (PDF: 315KB/1 page) | Metadata |
| DWSMA Vulnerability | FEB-23-2012 | Shapefile | Map (PDF: 428KB/1 page) | Metadata |
| Emergency Response Areas | FEB-23-2012 | Shapefile | Map (PDF: 312KB/1 page) | Metadata |
| Source Water Assessment Areas | FEB-23-2012 | Shapefile | Map (PDF: 323KB/1 page) | Metadata |
| Wellhead Protection Areas | FEB-23-2012 | Shapefile | Map (PDF: 347KB/1 page) | Metadata |
| Transient Noncommunity Inner Wellhead Management Zones | FEB-23-2012 | Shapefile | Map (PDF: 392KB/1 page) | Metadata |