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ORDINANCE NO. 2002-030 (Ord. No. 9046, § 1, 9-11-90) Section 927.12. Determination of proteeted-area Critical Root Zone En3vir-enmental planning staff shall review eaeh appheation, and may inspeet eaeh site, for- the pur-pose of making a deteffmination as to the appr-epfia.te pfeteeted area to be designated for- these preteeted tfees !fee on a given site. The pfeteeted afea shall be established based upen eensider-ation of the speeiesi Felevant er-iter-ia, and shall be established The Critical Root Zone (CRZ) is an area around a tree that is regulated by the Indian River County Land Development Regulations for the purpose of protecting the roots and trunk of a protected tree or a specimen tree, both during and after construction. It is a circular area using a radius measured from the center of the tree. The radius is calculated as one (1) foot of radius for each one (1) inch of diameter at breast height (4.5 feet above grade). For any fraction of a foot over a whole foot, the diameter at breast height will be rounded up to the next whole number. Example: a tree has a diameter at breast height of 211/4 inches; the CRZ is a circle, centered on the center of the tree, with a radius of 22 feet. In no event shall the pr-eteeted area CRZ be less than an area measured five (5) feet radially from the center of the tree at its base unless expressly determined by the environmental planner that a smaller specified CRZ may be established. A tree well design shall be required as appropriate in cases when the placement of fill threatens the viability of a protected tree or specimen tree to be preserved. (Ord. No. 90-16, § 1, 9-11-90) Section 927.13. Local permit not exclusive. It is the intent of this chapter that permits or approval required hereunder shall be in addition to and not in lieu of any federal, state, regional, or other local approvals which may be required for the same or similar activities. In the event this chapter conflicts with any other regulations on this subject matter, the more restrictive shall apply, with the exception that in a municipality, the municipal ordinance shall prevail. Compliance with provisions of this chapter does not excuse any person for noncompliance with other applicable federal, state, regional or local laws. (Ord. No. 90-16, § 1, 9-11-90) Section 927.14. Open burning/air curtain incinerator regulations referenced. The provisions of Chapter 925, Open Burning/Air Curtain Incinerator Regulations, shall apply regarding the burning of debris associated with land clearing and tree removal activities, as applicable. (Ord. No. 90-16, § 1, 9-11-90) Section 927.15. Variances and administrative appeals. A variance from any of the substantive requirements of this chapter or an appeal of any administrative determination made by the environmental planner may be obtained in accordance with the procedures set forth for such relief under the land development regulations of Indian River County; however, the planning and zoning commission of Indian River County shall be the board to which all such Coding: Words in ^`Fithrough are deletions from existing law. Words underlined are additions. 12