As used in this chapter:
   (a)   "Caliper; Single Stem" means the thickness of trees measured in inches. A caliper measurement for trees shall be measured twelve inches above the soil line, or across the stump if the tree has been severed at less than twelve inches above the soil line.
   (b)   "City Manager" shall mean the City Manager or his or her authorized representative.
   (c)   "Department" shall mean the Department of Public Works of the City.
   (d)   "Diameter-at-breast-height (DBH)" means the tree trunk diameter measured in inches at a height 4.5 feet above the ground. If a tree forks into multiple trunks below 4.5 feet, the trunk is measured at its most narrow point beneath the forks. Measurements shall be made by use of a circumference to diameter conversion tape.
   (e)   "Dripline" means the vertical line extending from the outermost edge of the tree canopy to the ground.
   (f)   "Hazardous tree" means a tree that is unsafe due to a structural defect and constitutes a threat of injury to persons or damage to property.
   (g)   "Park" shall include all public parks having individual names, and all areas whether or not owned by the City, or to which the public has access as a park.
   (h)   "Prohibited species" shall mean any tree of poplar (Populus Sp.), willow (Salix Sp.), box elder (Acer Negundo), silver maple (Acer Sacchrium), locust (Robina Sp.), tree of heaven (Ailanthus Altissima), catalpa (Catalpa Sp.), mulberry (Morus Sp.), American elm (Ulmus Americana) and Siberian elm (Ulmus pumila).
   (i)   "Pruning" means the cutting or removing any part of the branching structure of a tree in either the crown, trunk or root areas.
   (j)   "Public utility" shall mean any person owning or operating any pole, line, pipe or conduit located in any public street or over or along any public easement or right of way for the transmission of electricity, gas, telephone service or telegraph service.
   (k)   "Street" shall mean all the land lying between property lines on either side of all streets, highways and boulevards in the City.
   (l)   "Topping", also known as stubbing, dehorning or lopping, refers to cutting back of the leader stem or limbs into stubs larger than three inches in diameter within the tree's crown so as to remove the normal canopy and disfigure the tree.
   (m)   "Tree", unless the context clearly indicates otherwise, means trees, shrubs, bushes and all other woody vegetation.
   (n)   "1995 ANSI A300" means pruning standards set forth in the Standard Practices for Trees, Shrubs, and Other Woody Plant Maintenance.
(Ord. 362. Passed 3-1-94.)