ArcSWAT

ArcGIS-ArcView extension and graphical user input interface for SWAT

ArcSWAT 2012.10.14 (updated March 5) 

Please read the FAQ and recommended "Do"s and "Don't"s before sending an error report. 
Remember to uninstall any previous versions of ArcSWAT before installing a new version.

For ArcGIS 10.1 SP1, released January 10, 2014, for SWAT2012

For ArcGIS 10.0 SP5, released January 10, 2014, for SWAT2012

ArcSWAT 2009.10.1 

ArcSWAT 2009.93.7b Release Information