Proper Functioning Condition - Lentic riparian-wetland areas are func-tioning properly when adequate vegetation, landform, or debris is present to:dissipate energies associated with wind action, wave action, and overlandflow from adjacent sites, thereby reducing erosion and improving waterquality; filter sediment and aid floodplain development; improve flood-waterretention and ground-water recharge; develop root masses that stabilizeislands and shoreline features against cutting action; restrict water percola-tion; develop diverse ponding characteristics to provide the habitat and thewater depth, duration, and temperature necessary for fish production, water-bird breeding, and other uses; and support greater biodiversity.