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(1) If there is existing, healthy, natural vegetation in the area of a required buffer, it <br />must be preserved. If the vegetation is removed for any reason, other than in <br />accordance with an approved landscape and tree preservation plan, the <br />dimensions of the buffer shall be increased 50% and the number of required <br />plantings shall be increased 50%. <br />(2) The critical root zones of trees within the buffer must be protected if the applicant <br />seeks credit for preservation of existing trees. For example, if a required buffer <br />has a dimensional width of 30 feet, and the critical root zone extends beyond the <br />30 feet, the buffer will be extended to the edge of the critical root zone in the area <br />around the tree. <br />(3) If necessary, a natural buffer will be supplemented with additional plantings in <br />order to meet the Constructed Buffers standards established herein. <br />(F) Constructed Buffers <br />(1) If existing plantings are not sufficient to meet the buffer standards established in <br />this Section, additional plantings shall be installed. <br />(2) The plant units listed below will be considered comparable, and therefore <br />interchangeable, as set forth below. <br />(3) Option 2, Deciduous, shall not be permitted when the proposed use is non- <br />residential and is proposed next to a residential district or use, unless employed <br />with a wall, as set forth herein. <br />TABLE 6.8.6.F: BUFFER TYPES <br />BUFFER <br />TYPE <br />MINIMUM <br />WIDTH <br />OPTION 1 <br />MIXED <br />OPTION 2 <br />DECIDUOUS <br />OPTION 3 <br />EVERGREEN <br />OPTION 4 <br /> OVERHEAD UTILITY <br />Plant Material Required Per 100 Linear Feet <br />A 20 <br />1 Canopy Tree <br />0 Evergreen Tree <br />1 Deciduous <br />Understory <br />2 Evergreen <br />Understory <br />13 Shrubs Tree <br />2 Canopy Tree <br />0 Evergreen Tree <br />2 Deciduous <br />Understory <br />0 Evergreen <br />Understory <br />12 Shrubs Tree <br />0 Canopy Tree <br />2 Evergreen Tree <br />0 Deciduous <br />Understory <br />3 Evergreen <br />Understory <br />13 Shrubs Tree <br />0 Canopy Tree <br />0 Evergreen Tree <br />3 Deciduous <br />Understory <br />2 Evergreen <br />Understory <br />10 Shrubs Tree <br />B 30 <br />1 Canopy Tree <br />0 Evergreen Tree <br />1 Deciduous <br />Understory <br />2 Evergreen <br />Understory <br />13 Shrubs Tree <br />2 Canopy Tree <br />0 Evergreen Tree <br />2 Deciduous <br />Understory <br />0 Evergreen <br />Understory <br />12 Shrubs Tree <br />0 Canopy Tree <br />2 Evergreen Tree <br />0 Deciduous <br />Understory <br />3 Evergreen <br />Understory <br />13 Shrubs Tree <br />0 Canopy Tree <br />0 Evergreen Tree <br />3 Deciduous <br />Understory <br />2 Evergreen <br />Understory <br />10 Shrubs Tree <br />C 40 <br />3 Canopy Tree <br />1 Evergreen Tree <br />2 Deciduous <br />Understory <br />5 Evergreen <br />Understory <br />40 Shrubs Tree <br />3 Canopy Tree <br />1 Evergreen Tree <br />2 Deciduous <br />Understory <br />5 Evergreen <br />Understory <br />40 Shrubs Tree <br />0 Canopy Tree <br />4Evergreen Tree <br />0 Deciduous <br />Understory <br />9 Evergreen <br />Understory <br />38 Shrubs Tree <br />0 Canopy Tree <br />0 Evergreen Tree <br />7 Deciduous <br />Understory <br />5 Evergreen <br />Understory <br />30 Shrubs Tree <br />D 50 <br />6 Canopy Tree <br />1 Evergreen Tree <br />4 Deciduous <br />Understory <br />9 Evergreen <br />Understory <br />70 Shrubs Tree <br />7 Canopy Tree <br />0 Evergreen Tree <br />10 Deciduous <br />Understory <br />0 Evergreen <br />Understory <br />67 Shrubs Tree <br />0 Canopy Tree <br />7 Evergreen Tree <br />0 Deciduous <br />Understory <br />16 Evergreen <br />Understory <br />68 Shrubs Tree <br />0 Canopy Tree <br />0 Evergreen Tree <br />12 Deciduous <br />Understory <br />9 Evergreen <br />Understory <br />53 Shrubs Tree <br />91