“Certified arborist” means a person certified by the International Society of Arboriculture as having specialized knowledge, experience, and training related to arboriculture.

“Critical root zone” means the distance extending out from and surrounding a tree trunk. The critical root zone distance is calculated by multiplying the diameter of the tree, in inches, measured at four and one-half feet above the mean ground level, by 18. For example, a tree with a diameter of two inches would have a critical root zone of 36 (2 × 18) inches all around the tree.

“Hazardous or dangerous tree” means a tree that is classified as a hazardous or dangerous tree by a certified arborist.

“Person” means any individual, partnership, copartnership, firm, company, corporation, association, joint stock company, trust, estate, governmental entity, or any other legal entity, or their legal representatives, agents, or assigns.

“Public trees” means trees located on property designated as a public park and trees located in public right-of-way not defined as street right-of-way.

“Remove or removal” means to fell or sever a tree or the intentional use of any procedure, the natural result of which is to cause the death or substantial destruction of the tree. Removal does not in any context include normal pruning of trees.

“Significant tree” means:

“Street trees” means trees located within public rights-of-way within the City.

“Tree” means a self-supporting, perennial woody plant characterized by one main trunk or in some cases multiple trunks, and one main canopy of leaves, usually growing to a height of 15 feet or higher.

“Tree circumference” means the distance measured around the trunk of a tree at four and one-half feet above the mean ground level from the base of the trunk. The circumference of a tree with multiple trunks is determined by adding together the individual trunk circumferences greater than six inches. (Ord. 165, passed 10-8-2019)