Agricultural Subsurface Drainage Tile Locations by Permits in North Dakota

Dataset contains locations of subsurface drainage tile permits in North Dakota obtained from the North Dakota State Water Commission as of February 2016. This dataset was updated on 4 August 2016 with additional subsurface drainage permits and supersedes the previous version. Date range of permits (Start & End Dates) in this version has changed from previous version because of the following criteria. Permit applications that were marked as "approved" by the State Water Commission were retained in this dataset, all other status types (e.g., pending, denied) were removed. This dataset provides the latitude, longitude, and polygon outline of the location given on the permit, which is not provided by the State Water Commission database. [...]