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of removal of invasive species present as weu ss the attempt to avoid any and all <br /> significant trees to the extent possible. When removal of significant trees is deemed <br /> necessary, these trees will be replaced in acoordance with City of Orono requ.irements. <br /> No rare plant communities were observed on site and were not identified on Map 3A-5. <br /> Many areas onsite fringing the wetlands are dominated by invasive species, including <br /> garlic mustard, reed canary grass, and buckthorn While management efforts wiil take <br /> place, due to the low quality nature of these areas, no special protection of these areas are <br /> necessary. <br /> 4. Conservatlon Design�Vlaster Plan <br /> a. The topography of the site is rolling hills with some areas meeting the City of Orono <br /> bluff ordinance criteria, with the highest point located in the central portion of the <br /> property, where the ea�isting residence is situated. Storinwater runoff on ttte southern half <br /> of the property drains southwards in the direction of and into Wetland 5, wliich is <br /> adjacent to Shoreline Drive on site. On the northern portion of the parcel, the majority of <br /> the stormwater runs to the eastern edge of the properry and into Wetland 2 and Tanager <br /> Lake, although stormwater also flows into Wefland 3 along the north edge of the <br /> property, as well as off site to the west. Wetland 2 is a closed, depressional wetland <br /> located in the north central portion of the property and collects stormwater runoff from a <br /> srnall percentage of the property as well. Wedand 4 is also a closed depressional wetland <br /> and most of its water souzce is the driveway and turnaround area for the garage of the <br /> residence to the south of the Heritage Lane cuI de sac. Historic photographs were <br /> reviewed and showed no significant changes from the current property arrangement. <br /> b. The existing drainage patterns have primarily heen maintained. Stormwater on the <br /> southern half of tl�e property wilt continue to drain sauthward into Wetland 5. The <br /> majority of stormwater on the northern portion of the parcel ruris to the eastern edge of <br /> the property into Tanagez Lake and north into Wetland 3. Contours within Lots 1, 2, and <br /> 3 will likely be manipulated to each accommodate a future proposed residence, but will <br /> not significantly re-direct surface water or affect the wetlands or their functions. <br /> � Invasive species were evaluated on Apzi] 27, 2015, and include cornmon buckthorn, <br /> reed cauary grass, garlic mustard, and narrowleaf cattail. Grouped locations can be found <br /> on the attached map. Buckthorn seedlings, saptings and trees run along the north <br /> boundary and east border with Tanager Lake. Reed canary grass is present in isolated <br /> populations within Wetlands 3, 4, 5 and 6. Garlic mustard is located in the adjacent <br /> upland area around Wet�and 5 as we11 as in isolated patches throughout tlze maple <br /> basswood forest. Attached is a vegetation n�anagement plan for the invasive species <br /> observed onsite. <br /> d The t�ees existing on the subject parcel range from paor to good health. Although some <br /> have clied or are dying, the majority appear to be in good health with no signs of disease. <br /> Dead trees will be removed from the lots if they are within grading areas or if they pose a <br /> safety hazard. <br /> There will be 110 trees removed for the construction of the extension of Heritage Lane <br /> and the new cul de sac. <br /> Svoboda Ecological Resources 3 1700 Shoreline Drive <br /> Project No.:2015-004 Irwin 7acobs <br />