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<br />- -- -- -- -------- -------~----, <br /> <br />,,' .. <br /> <br />Retention_Svstems <br />-werponCls <br /> <br />Description (continued) <br /> <br />Establishing Aquatic Vegetation <br /> <br />Vegetative buffers around the perimeter of the wet pond are recommended for erosion control and additional <br />sediment and nutrient removal. Establishing wetland vegetation on the aquatic bench will enhance removal of <br />soluble nutrients, enhance sediment trapping, prevent sediment resuspension, provide wildlife and waterfowl habitat <br />and conceal trash and debris that may accumulate near the outlet. Shallow depths near the inlet will concentrate <br />sediment deposition in a smaller, more accessible area. <br /> <br />Advantages <br />. Capable of removing both solid and soluble pollutants. <br />Depending on design, wet ponds can be an aesthetically pleasing BMP . <br />. Wildlife habitat is created when ponds are properly planted and maintained. <br /> <br /> <br />Principal Release Pipe <br />Set on Negative Slope <br />to Prevent Clogging <br /> <br />Conerele <br />Sase <br /> <br />Low Flow Drain for Pond Maintenance <br />(should be designed 10 proYlde easy access and 10 <br />avoid clogglng by trapped sedlments.) <br /> <br />Figure 1: Typical Wet Pond Design <br />Source: Maryland Department of the Environment, 1986 <br /> <br />3-254 <br /> <br />Minnesota Urban Small Sites BMP Manual <br /> <br />l_ _ _ __ _ <br />