The following terms shall have the meanings indicated for purposes
of this chapter:
APPLICANT
Any person, corporation, partnership, firm or any other entity
making an application pursuant to this chapter.
APPROVAL AUTHORITY
If tree removal relates to an application which, under the
Town Code, is subject to the approval of a Board of the Town, the
Approval Authority is the Board having the final approval over such
application. Otherwise, the Approval Authority is the Forestry Officer,
Commissioner of the Department of Public Works or the Commissioner
of the Department of Parks and Recreation, as designated in this chapter.
CALIPER
The diameter of a tree trunk measured at six inches above
the ground for up to and including four-inch diameter size trees,
and measured at 12 inches above the ground for larger sized trees.
Used for nursery stock and newly planted trees, and not for established
trees.
CANOPY
The foliar cover of trees or groups of trees.
CANOPY TREE
A large or medium tree with a crown size and shape that will
typically provide significant shade and beneficial effects on temperature,
air quality, water quality, and other environmental conditions, at
maturity. Synonymous with "shade tree."
CERTIFIED ARBORIST
An individual who has obtained knowledge and competency through
an accredited body, including, but not limited to, the current International
Society of Arboriculture arborist certification program, or is a member
of the American Society of Consulting Arborists, or a professional
forester in the New York State Cooperating Consultant Forester Program,
or is a member of the New Jersey Society of Certified Tree Experts,
or is a licensed arborist with the State of Connecticut Department
of Energy and Environmental Protection.
CLEAR CUTTING
The injury and/or removal of 33% or more of trees from a
property without the benefit of a current and valid tree removal permit.
For purposes of this calculation, trees located within wetlands, watercourses
or adjacent buffer areas, or located within an excessively steep slope,
which are injured and/or removed, shall be counted double.
COMMERCIAL FACILITY
An office building, retail store, warehouse, storage facility,
shipping facility, theater, restaurant or any establishment which
charges a fee for goods or services.
CONTRACTOR
A person, corporation, partnership, firm or entity in possession
of a valid home improvement license from the County of Westchester
and valid Certificate of Insurance, including proof of liability coverage
for personal and property damage and worker's compensation.
CRITICAL ROOT ZONE (CRZ)
The area containing the minimum root area necessary for maintenance
of tree health and stability. The critical root zone for all trees
other than trees of significance is a circle with a radial distance
of one foot for every one inch DBH with a minimum of eight feet, and
from the surface to a depth of three feet. The critical root zone
for a tree of significance is a circle with a radial distance of 1.5
feet for every one inch DBH, and from the surface to a depth of three
feet. A minimum of 75% of the critical root zone must remain undisturbed
to provide for the health of the tree, except when a higher percentage
is required as determined by a Certified Arborist.
CROWN
The upper portion of a tree which includes the scaffold limbs,
branches, and leaves or needles.
DESIGNATED BUFFER AREA
An area, shown on an approved plan and designated by a Board
of the Town, which is to remain in its natural state and where no
disturbance shall occur.
DESIGNATED TREE
A tree which is specifically required to be planted or preserved
in connection with any permit or other approval issued by the Town
Board, Planning Board, Zoning Board of Appeals, Historic and Landmarks
Preservation Board or any Officer of the Town.
DIAMETER AT BREAST HEIGHT (DBH)
The diameter of the tree trunk or sum of the trunks, measured
at 4.5 feet above natural grade level. The diameter may be calculated
by using the following formula: DBH = circumference at 4.5 feet divided
by 3.142.
DISTURBANCE
For purposes of this chapter, disturbance shall refer to
all of the various activities from construction and development that
cause injury to trees.
DRIP LINE
The outermost limit of the canopy of a tree as delineated
by the perimeter of its branches and which, when extended perpendicularly
to the ground, encloses the tree.
EXCESSIVE PRUNING
Removing 1/4 (25%) or greater, of the functioning leaf, stem
or root area of a tree.
FALL ZONE
The area around a tree based on the topography, site conditions,
wind and other factors that influence the natural direction where
the entire tree or pieces of a tree, would land on a property.
FORESTRY OFFICER
An individual, who is a Certified Arborist that has expertise
regarding trees, tree preservation, tree planting, and tree maintenance,
appointed by the Town of Greenburgh Town Board to administer and enforce
the provisions of this chapter.
GIRDLING
Any activity that injures the bark of a tree trunk, typically
extending around much of the tree's circumference.
GRADING
The alteration of topography through the removal, movement
or addition of soil, fill, or other material.
HAZARDOUS TREE
A tree identified as structurally defective which posed or
poses an imminent risk or increased likelihood that all, or part,
of the tree would fail resulting in a risk of personal injury, death
or property damage in the fall zone.
INJURY
Any act which significantly weakens the tree, or its stems,
trunk or roots, which may also include, but is not limited to, the
following listed acts: excessive pruning; girdling or partial girdling
of the tree trunk; excavation, compaction of the roots and/or raising
or lowering the existing grade within the critical root zone, or poisoning
in any manner (including, but not limited to, the addition of paint,
brine, oil, gasoline, toxins, petroleum products, concrete or stucco
mix, dirty water, etc., to the ground around a tree within the critical
root zone), which list is not exclusive of other acts which may have
deleterious effects.
INVASIVE SPECIES
A nonnative species whose introduction does or is likely
to cause economic or environmental harm, or harm to human, animal,
or plant health.
LARGE CANOPY TREE
A tree expected to grow to a minimum of 50 feet in height
at maturity, with a canopy spread that consists of at least 1,600
square feet, under urban conditions.
LICENSED PROFESSIONAL TREE CARE COMPANY
A business which has a current and valid Westchester County
Home Improvement license, is registered with the Tree Care Industry
Association (TCIA) or the International Society of Arboriculture (ISA)
and employs at least one Certified Arborist, and which carries valid
certificates of insurance, including proof of liability coverage for
personal and property damage and worker's compensation for work
performed.
MEDIUM CANOPY TREE
A tree expected to grow to a maximum height of between 30
and 50 feet at maturity, with a canopy spread that consists of between
900 and 1,600 square feet, under urban conditions.
MID-MATURITY
A small canopy tree at 20 years of age; a medium canopy tree
at 30 years of age; and a large canopy tree at 40 years of age, as
identified within the Town of Greenburgh Official Replacement Planting
List.
NATURAL GRADE LEVEL
The surface of the ground prior to adding or removing soil,
fill or other added material, within the critical root zone.
PERSON
A corporation, partnership, association or other legal entity,
as well as an individual.
PUBLIC/STREET TREE
Any tree growing within the public street right-of-way, outside
of private property, and any tree growing within the limits of a Town
Park or on Town property.
REPLACEMENT PLANTINGS
Trees, shrubs, or other plant material that may be required
by the Approval Authority, to mitigate the removal of a tree or trees
on a site.
ROOT COLLAR
The base of a tree where the main roots and trunk meet. Also
referred to as the root flare.
SCAFFOLD BRANCH
A large main branch that forms the main structure of the
crown.
SITE PLAN
A drawing or set of drawings (e.g., property survey, plot
plan, site plan, grading plan, demolition plan, site improvement plan,
utility plan, landscape plan and/or remediation plan) prepared and
stamped by a landscape architect, professional engineer or land surveyor
licensed in the State of New York, which provides a title, project
name, project address, parcel identification number(s) for the project
site, and shows existing site conditions and proposed landscape improvements,
including trees to be removed (marked with an "X"), relocated and
retained, and which shall include the following minimum information:
surveyed tree location, species, size, tree identification number,
drip line area for all trees on the site (including trees located
on any neighboring property which overhang the project site and all
public/street trees located within 50 feet of the project site); existing
and proposed structures; existing and proposed paving, concrete, trenching
or grade change located within any established critical root zone;
existing and proposed utility pathways, surface and subsurface drainage
and aeration systems, walls, tree wells, retaining walls and grade
change barriers, both temporary and permanent; existing and proposed
irrigation and lighting within the drip line of trees to be retained
and new trees to be planted, including all lines, valves, etc.; location
of all proposed tree plantings and other landscaping; any significant
features (e.g. wetlands, watercourses, rock outcroppings) located
on the project site; details for tree protection and delineation of
trees to be protected; a summary table identifying all new plantings
to be installed, specifying their species (Latin and common name),
caliper size and total quantity.
SMALL CANOPY TREE
A tree expected to grow to a maximum height of 30 feet at
maturity, with a canopy spread that consists of between 400 and 900
square feet, under urban conditions.
TOPPING
The indiscriminate cutting back of tree branches to stubs
or lateral branches that are not large enough to assume the terminal
role, which can lead to branch dieback, decay, and unstable sprout
production from the cut ends, resulting in a potentially hazardous
situation once the sprouts become large and heavy. Other names for
topping include "heading," "tipping," "hat-racking," and "rounding
over."
TOWN OF GREENBURGH OFFICIAL REPLACEMENT PLANTING LIST
A list of trees, shrubs and groundcovers approved and adopted
by the Town Board that includes plant species approved for planting
in the Town of Greenburgh to satisfy the requirements of this chapter
and that which contains information on their characteristics of size,
mid-maturity age, canopy spread, form, habit, and growing requirements.
TOWN TREE FUND
A fund containing surcharges paid and collected pursuant to the provisions of this chapter, which funds shall be used solely as directed by the Town Board, by resolution, to plant trees on public lands or street rights-of-way within the Town under the direction of the Forestry Officer; and defer costs to homeowners in removing diseased trees with spreading organisms pursuant to §
260-5.
TREE
Any self-supporting woody perennial plant of a species, having
a main stem or trunk or multiple trunks with many branches, and at
maturity normally attaining a DBH of three inches or greater (9.5
inches in circumference) and a height of 15 feet or greater.
TREE OF SIGNIFICANCE
A tree with unique or noteworthy characteristics or intrinsic
value, including, but not limited to, species, age, location, historical
significance, ecological value, and/or aesthetics, as determined by
the Approval Authority; or, a large canopy tree with a DBH of 36 inches
(113 inches in circumference) or more, a medium canopy tree with a
DBH of 24 inches (75 inches in circumference) or more, or a small
canopy tree with a DBH of 12 inches (37.5 inches in circumference)
or more.
TREE PROTECTION AND PRESERVATION PLAN
A drawing prepared and stamped by a landscape architect,
professional engineer or land surveyor licensed in the State of New
York, which provides accurate trunk locations, drip line areas, and
critical root zones of all trees or groups of trees to be preserved
on a project site. In addition, the plan must accurately identify
the DBH and correct species of each tree, and clearly indicate the
tree protection zone to be enclosed with the specified tree protection
fencing as a bold dashed line.
TREE PROTECTION ZONE (TPZ)
The area of temporary fenced tree enclosure reserved around
a tree or group of trees in which no disturbance, grading, access,
stockpiling or other deleterious activity shall occur, unless otherwise
approved in writing by the Approval Authority.
TREE PRUNING
The removal or reduction of certain plant parts that are
not required or are no longer effective, in order to retain or improve
the tree's health, natural habit, balance, stature, value and
contribution to the landscape design.
TRUNK
The main stem of a tree, beginning at the root collar and
ending at the lowest main scaffold branch.
UNDEVELOPED FORESTED PROPERTY
A property on which does not presently exist, or has not
existed for any time within the 15 years prior to the submission of
a tree removal permit application, a structure, and, on which there
is a tree canopy coverage of at least 50%.
No owner, lessee or occupant of any land or any part thereof
shall permit or maintain on any such lot or land any trees, shrubs
or bushes or parts thereof which are infected or infested with organisms
which cannot be treated by conventional methods utilized by licensed
professional tree care companies, therein resulting in the death of
such trees, shrubs or bushes, and which organisms are capable of spreading
to other private properties or public lands, resulting in death of
other trees, shrubs or bushes. It shall be the duty of any such owner,
lessee or occupant to destroy and remove all such organisms on written
notice from the Town, within a reasonable period of time, even if
this requires the removal of said trees, shrubs or bushes. In the
event such owner, lessee or occupant does not comply within the time
period provided in the notice, the Town shall have the right to cause
removal of any such infected or infested trees, shrubs or bushes upon
reasonable notice to the owner, and the cost of removal shall be a
tax lien on the owner's property until paid.