09-19-2016 Planning Commission Packet

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Orono, lVlN Code of Ordi.nances Page 11 of 19 In instances where healthy plant materials of acceptable species exist on a site prfor to its development,the application of the standards in subsection (14)b of this section may be adjusted by the city to allow credit for such material, pravided that such adjustment is consistent with the intent of this division. 2. A reasonable attempt shall be made to preserve as many existing trees as is practicable and to incorporate them into the site plan. 3. All new overstory trees shall be balled and burlapped or moved from the growing site by tree spade. Deciduous trees shall have a minimum caliper of 21� inches. Coniferous trees shall be a minimum o#six feet in height. Ornamental trees shall have a mfnimum caliper of 1Yz inches. 4. AI1 site areas not covered by buildings, sidewalks, parking lots, driveways,trails, patios, or similar hardcover shall be covered with sod or an equivalent ground tover approved by the city. This requirement shall not apply to site areas retained in a natural state. 5. In order to pravide for adequate maintenance of landscaped areas, an undergraund sprinkler system shall be provided as part of each new development, excepC one- and tw�- family dwellings and additions to existing structures which do not at least equal the floor area of the existing structure.A sprinkier system shall be provided for all lancfscaped areas, except areas to be preserved in a natural state. 6. Not more than 50 percenC of the required number of trees shall be composed of one species. The city shal! maintain a list of prohibited 5pecies, which shall not be used for landscaping. c. lnterior parking/ot landscaping. 1. A[I parking lots containing Qver 100 stalls shall be designed to incorporate unpaved, landscaped islands in number and dimension as required by the city. All landscape islands shall contain a minimum of 180 square feet. Islands which are necessary to promote the safe and efficient flow of traffic shall not be subject to the 100-stall standard and shall be required by the city when warranted. 2. Parking lot landscape areas, including landscape islands, shall be reasonabfy distributed throughout the parking lot area so as to break up expanses of paved areas. Parking lat landscape areas shall be provided with deciduous shade trees, ornamental or evergreen trees, plus ground cover, mulch and/or shrubbery as determined appropriate by the planning commission. Parking lot landscape trees shall be provided at the rate of one tree ..L_._�.L�.._,r oii c��n��