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percent of the entire area. <br /> Shallow Marsh Type 3, PEM1C. This community had a vegetative index of moderate and comprised 80 <br /> percent of the entire area. <br /> The highest rated community was the Fresh Wet Meadow community rated at 1. Averaging all the <br /> communities together, the Vegetative Diversity and Integriry of this wetland is Moderate. A more accurate <br /> look uses a weighted average; using this method, this site shows a Moderate Vegetative Diversity and <br /> Integrity. <br /> The weighted average provides the best measure for an entire wetland. Plant communities at this site are, <br /> overall, of average quality. Individual community ratings should be examined to provide a complete picture of <br /> possible high-value communities or smaller-but-poor-quality segments that might degrade the site over time. <br /> Functional Ratinqs <br /> Function Rating Comment <br /> Vegetative Diversity Moderate Moderate-functioning vegetative communities indicate a presence of <br /> native wetland species with substantial non-native or invasive species. <br /> Additionat stormwater Moderate Sediment removal would improve the ability of this site to maintain water <br /> treatment needs quality. <br /> Maintenance of High Due either to careful human management or lack of alteration of the <br /> Hydrologic Regime outlet or watershed conditions, the wetland maintains a hydrologic <br /> regime similar to the original wetland type. This stability supports <br /> characteristic vegetative communities and is closely associated with <br /> flood attenuation, water quality, and groundwater interaction. <br /> Flood/Stormwater/Att High The wetland provides ample flood storage and/or flood wave <br /> enuation attenuation. Outlet configuration is restricted (or unaltered)and <br /> undisturbed wetland soils, and dense emergent vegetation without <br /> channels allow the wetland to retard flood water. A high proportion of <br /> impervious surFaces in the subwatershed, large runoff volumes, clayey <br /> upland soils, and few wetlands present within the subwatershed may <br /> position any wetland to be a good attenuator of excess water. <br /> Downstream Water High This wetland has the ability and opportunity to protect valuable <br /> Quality downstream resources, including recreational waters. A wetland with <br /> significant emergent vegetation and overland flow characteristics <br /> removes sediment from stormwater. A high nutrient removal rating <br /> indicates dense vegetation (to maximize nutrient uptake)and sheet <br /> flow. The wetland may protect a valuable water resource within 0.5 <br /> miles downstream. More (and less-treated) runoff also increase a <br /> wetland's opportunity to rate high for this function. Maintaining wide, <br /> natural buffers and keeping out surges of untreated stormwater will help <br /> maintain this wetland's role as a protector of important resources lower <br /> in the watershed. <br /> Maintenance of Moderate Wetland water qualiry is average. Sediment removal from incoming <br /> Wetland Water water would benefit the site. Also consider reducing the amount of <br /> Quality stormwater directed at the site. Sustaining a diverse wetland may <br /> require additional control over upland land use and the buffer. <br /> Page 2 of 4 <br />