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Watersheds are the next level of drainage areas larger than Subwatersheds. They represent the USGS 10 Digit Hydrologic Unit Code (HUC) drainage areas. Watershed boundaries were updated by incorporating SFWMD subject matter experts advice and newer data from business units when available. The HUC code from USGS is not populated for AHED Watersheds because there is not a one to one correspondence between the two datasets. In AHED, topology rules are enforced among the features of Basin, Subbasin, Watershed, SubWatershed and Rainarea feature classes. |