As used in this chapter:
"Certified arborist"means an individual:
1. With related training and three years of experience to demonstrate competency in arboriculture; and
2. Who holds one of the following credentials:
a. American Society of Consulting Arborists (ASCA) Registered Consulting Arborist; or
b. International Society of Arboriculture (ISA) Certified Arborist with:
i. An associate degree; and/or
ii. A minimum of two years of college-level credit; and/or
iii. One hundred twenty continuing education units.
"Coppicing"is a tree management technique that encourages growth or re-sprouting from the roots or stump and requires repeatedly cutting stems to near ground level once they have reached the desired size.
"Critical root zone"means the area around a tree requiring protection, as determined by an arborist; generally, the area surrounding a tree trunk at a distance equal to one foot for every inch of tree diameter.
"Developed lot, tract or parcel"means any share, portion, or division of real property, whether developed or partially developed with a structure requiring a building permit.
"Diameter"means a straight line passing through the center of a tree from side to side measured at four and one-half feet above grade (DBH). The methodology to compute the diameter shall be the circumference of the tree at that point divided by 3.1416.
"Director"means the Public Works Director, or his or her designee.
"Emergency hazard tree removal"means removal of a tree with a structural defect and/or disease that creates an imminent likelihood of failure as defined in the ISA Basic Tree Risk Assessment, as determined by the Director. Proximity to a target is not necessary when determining whether a tree is a hazard tree.
"Exceptional tree"means a tree that has been determined by the Director to be worthy of long-term retention because of its unique combination of size, species, age, location, and health. All trees, except red alder or species listed as exempt in Section
16.12.050, with a diameter of thirty inches or greater are exceptional trees.
"Hazard tree"means a tree with a structural defect and/or disease that creates a probable or imminent likelihood of failure as defined in the ISA Basic Tree Risk Assessment, as determined by the Director. Proximity to a target is not necessary when determining whether a tree is a hazard tree.
"Hedge tree"means a tree in a group or row of similar tree type that has been maintained to a maximum height of thirty feet.
"Land development activity"means any activity requiring permits or other approvals for the purposes of land clearing, grading/land modification, subdivisions or short subdivisions, an increase in lot coverage, or the construction or alteration of any building, utility, or improvement.
"Permit"shall mean, unless otherwise noted, the tree permit or tree management permit; see "tree permit" and "tree management permit."
"Pollarding"is a specialty pruning technique in which a tree with a large-maturing form is kept relatively short. Normally starting on a young tree, internodal cuts are made at a chosen height, resulting in the development of callus knobs at the cut height. Requires regular (usually every one to three years) removal of the sprouts arising from the callus knobs.
"Pruning"is the targeted removal of diseased, damaged, dead, nonproductive, structurally unsound, or otherwise unwanted tissue from a tree to support tree health, public health and safety, and view protection. Pruning may include techniques identified in and implemented consistent with the most recent version of the International Society of Arboriculture's Best Management Practices.
"Replacement tree"means any tree that is planted that meets the criteria in:
3. An approved resolution by agreement or tree management plan.
"Resolution by agreement"is an agreement between the Town and the applicant for the short-term maintenance, management, preservation, replacement, and/or enhancement of trees. A resolution by agreement is administered through an approved tree permit pursuant to Section
16.12.180.
"Routine property maintenance"means any work on a developed lot, tract or parcel that results in the loss of a tree but is not associated with any other permit application.
"Routine tree maintenance"shall mean keeping a tree healthy, clean, and safe using hand labor and light equipment to prune trees by a person in connection with the normal maintenance and repair of property.
1. This definition also includes removal of the following trees:
a. English laurel (Prunus laurocerasus) and other laurel species;
b. English holly (Ilex aquifolium);
c. Leyland cypress (Cuprocyparis leylandii); and
d. Nonnative cultivated fruit trees including, but not limited to, apple (Malus sp.), pear (Pyrus sp.), cherry (Prunus sp.), plum (Prunus sp.), peach (Prunus sp.), apricot (Prunus sp.), and nectarine (Prunus sp.).
2. This definition does not include work associated with a larger common plan of development that, if combined with the routine maintenance, would require a permit.
"Topping"means removing no more than thirty percent of the total height of a tree. Removal of suckers and broken, split, dead or diseased tops or branches is not considered tree removal or topping.
"Tree"means a tree with a trunk of eight inches or more in diameter.
"Tree management plan"is an agreement between the Town and the applicant for the long-term maintenance, management, preservation, replacement, and/or enhancement of trees and tree communities.
"Tree permit"means the permit granted by the Town to remove or top a tree(s).
"Tree removal"means the removal of a tree, through direct or indirect actions, including, but not limited to:
2. Cutting or pruning that causes irreversible damage to roots or trunks;
4. Destroying structural integrity;
5. Filling, excavation, grading, or trenching in the critical root zone of a tree that has the potential to cause irreversible damage to the tree; and/or
6. Removing more than thirty percent of the total height of the tree.
"Undeveloped lot, tract or parcel"means any share, portion, or division of real estate on which no structure requiring a building permit exists and which may be further developed or subdivided in accordance with the Town's zoning regulations. For the purposes of this chapter, lots, tracts, or parcels that are in the process of being developed with an approved development permit are considered undeveloped.
"Year"means a twelve-month period beginning on the day a tree permit is issued by the Town.
(Ord. 20-611 § 4 (Exh. D (part)), 2020)