The storage of water in low areas, such as ponds, and wetlands. Depression storage refers to small low points in undulating terrain that can store precipitation that otherwise would become runoff. The precipitation stored in these depressions is then either removed through infiltration into the ground or by evaporation. Depression storage exists on pervious and impervious surfaces alike; however, depression storage is much greater on undisturbed, pervious surfaces. Standard design and construction practices remove these natural depressions in order to promote drainage, which reduces depression storage. Depression storage is categorized as lesser factors in surging terrain that can prevent runoff through stocking precipitation. precipitation that otherwise would emerge as runoff. The precipitation held in these depression storages are then eliminated via infiltration into the ground or through the assistance of evaporation. Depression storage persists on surfaces that are both impervious and pervious, although the depression storage is much more significant on self-contained, pervious surfaces. Standard layout and creation methods get rid of those organic depressions in order to boost drainage, which decreases depression storage.