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r � <br /> AD ENVIRONMENTAL CONSULTING <br /> Smaller buckthorn (3' in height or less) will be treated with a foliar spray or pulled by <br /> hand. <br /> Much of the existing herbaceous vegeta.tion was dominated by reed canary grass <br /> (Phalaris arundinacea); AEC proposes spraying the reed canary grass with Rodeo (an <br /> aqua.tic safe version of glyphosate). Once the buckthom and reed canary grass is <br /> eli.minated the area should be lightly tilled and re-seeded with a native seed mix (mesic <br /> short-grass/forb mu�). The approximate area to be restored will be along the 974' contour <br /> (in the SE portion of the site) and below. <br /> The buffer will be maintained with standard practices such as occasional mowing and <br /> herbicide treatment. A full management plan will be developed by the seeding <br /> contractor. <br /> Along the eastem properiy line a number of native trees have been planted and the <br /> surrounding area mulched (much of the buckthorn has already been removed). AEC <br /> suggests insta.11ing na.tive plugs thought the mulched area to add some diversity. A list of <br /> proposed species is included at the end of this letter. <br /> Rainwater Garden � <br /> To compensate for the additional run-off into the existing wetland, the City of Orono <br /> suggested a sma11 rainwater garden directly south of the proposed garage addition. The <br /> rainwater garden will be approximately 5' wide and span the width of the garage <br /> (approximately 30' in width east to west). The rainwater garden will be constructed to <br /> catch the run-off from the garage area and filter the water as it infiltrates into the ground; <br /> native species will be planted within the garden. <br /> Summary <br /> Total impacts to the buffer area are 425 ft2 for the proposed garage addition. The <br /> proposed restoration of the buffer area and rainwater garden should filter all run-off from <br /> the properiy and likely improve the water quality entering the existing wetland area. <br /> If you have any questions regarding this project, or need additional information, please <br /> do not hesitate to call me at 612-237-5996. <br /> Thank you, <br /> Ben Carlson <br /> Ben Carlson,WDC <br /> Ecologist/Owner <br /> Arrowhead Environmental Consulting <br /> t�RROWHEAD ENVIRONMENTAL CONSULTING �tECEIVED <br /> 2909 MEADOW LANE <br /> MOUND,MN 55364 q <br /> 612-237-5996 AUG �� L O�� <br /> - www.azrowheadec.com � . <br /> f'+ITV AC A�'/�1�� <br />