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r <br />I <br />:i ‘ <br />III. Defliiitions. All words in this Policy have their customary dictionary <br />definition except as specifically defined herein. The word "shall" is mandatory and <br />the words "should" and "may" are permissive. Technical terms used in this Policy ^ <br />defined in Appendix A. <br />Ruildable Area: The portion of a lot which is not located within any minimum <br />required yard, landscape strip/area, or buffer; that portion of a lot wherein a principal <br />building may be located, as prescribed by the Orono Zoning Code. <br />DRH (Diameter-at-Brea.st-Height'): A standard measure of tree size, whereby a tree <br />trunk diameter is measured in inches at a height of four and one-half feet (4 1/2) <br />above ground. If a tree splits into multiple trunks below four and one-half feet (4 <br />1/2'), then the trunk is measured at its most narrow point beneath the split. <br />Dripline: A vertical line extending from the outer surface of a tree's branch tips <br />down to the ground. <br />Land Alteration Permit: An official authorization issued by the Zoning <br />Administrator, allowing defoliation or alteration of the site for the commencement <br />of any construction. <br />Perimeter Buffer: (TO BE DEFINED) <br />Prn.ection Zone: All lands that fall outside the buildable area of a parcel. <br />Significant Trees: Any healthy long-lived hardwood deciduous tree measuring eight <br />inches (8") DBH or greater; any healthy softwood deciduous tre. measuring twelve <br />inches (12") DBH or greater; or any healthy coniferous tree measuring eight feet (8') <br />or more in height. Box-elder, cottonwood, and willow trees shall not be considered <br />to be significant trees. <br />Specimen Tree or Stand: Any tree or grouping of trees which has been determined <br />to be of a high value by the Zoning Administrator because of its species, size, age, <br />or other professional criteria. <br />Structure: An>thing which is built, constructed or erected; an edifice or building of <br />any kind or any piece of work artificially built up or composed of parts joined <br />together in some definite manner whether temporary or permanent in character. <br />Tree: Any self supporting woody plant, usually having a single woody trunk, and a <br />potential DBH of two inches (2") or more. <br />Tree Preservation Plan: A plan established in Section IV(B) of this Policy. See <br />Appendices B and C. <br />Znnint; Administrator: The agent of the City of Orono having the primary <br />responsibilities of administration and enforcement of this Policy.