2002 Draft Natural Resources Management

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We�land Na#ural Community Descript�ons and Management Recommendations A groundwater discharge area in the north part of the park has a si�nificant influence these wetlands. Historically W 1, which has the discharge az-ea, �vas tiled and the tiles can siill be seen today. The current system of wetlands follows a historic swale that once e�rained the northern area towards the south into McCarrons Lake. Hydrology also comes from starmwater inlets into W2 and W3. Purplc loosestrife has not established a major population in the park yet. Locations of the improvements discussec� in the following paragraphs are shown in £igure 6.10 Community VL-`V1 Shallovv Marsh/Lowland Hardwood Forest Qualitative Rank: Medium Area: 3.4 a�res This basin receives hydrology from a groundwater discharge point near the edge of a yard in the northwestern portion of the park. At least two ditches provide drainage to this groundwater fed wetland. �ne of the ditches alon� the southern end of the wetland has ceramic tiles discharging into ihe ditch. The subsurface ceramic tiles appear to extend into the wetland from the northeast to the southeast. Three tiles were field located. Tiles are old ceramic tife and do not function as wel] as they use to as is apparent from the deveJopment of obligate �vetland vegetatifln upstream of the tile. There was however flows coming from the tiles found. The ditch flows into a sinkhoEe (likely tile outlet) that flows into W3 under the trail. Ditch blocks would eliminate effectiveness of tile by inundation. The ditch blocks would also serve to reduce the scope and effect of the ditch on the adjacent wetland. The outlet of ihis ditch will likely need to be improved at some point. A riser could be placed on the outlet and a flexible, soiid drain tile could be potentially installed within the existing tile to allow flows to reach the iake �vithout further erosion and potential threat oF the trail. ern� o��x�s�ti��rre �=�6 Pa�ks Naticrrrl Resoirl•ce Managel�ie�zt