The Attributes tab allows you to document the physical attributes of the detention basin, such as type, size, and dimensions. You can also record the maximum volume of water that the detention basin will hold, the percentage of area upstream of the structure that is impervious, and the materials used to construct the side and bottom of the basin. In addition, you can record the type of structure/conduit used to drain the basin on a regular basis and the one used to drain the basin during emergencies.