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Appendix C:Inventory Data Fields <br />1.Address/Location—DRG identies the location of each tree,planting site,and stump by the <br />following attributes. <br />a.Address.House address. <br />b.On Street.The street the tree is physically found. <br />c.Side.The side of the house on which the tree stands in relation to the physical address. <br />d.X and Y coordinates in the desired format. <br />e.Park Name.The name of the park. <br />2.Species—DRG names trees by genus and species using both botanical and common names,and by <br />cultivars where appropriate. <br />3.Tree Size—DRG’s urban foresters measure the diameter to the nearest inch in 1-inch size classes at 4½ <br />feet above the ground,or diameter at breast height (DBH). <br />4.Condition—Staconsider signs of stress,poor structure,mechanical damage,soil and root problems, <br />disease,and pests in the assessment of tree condition. <br />a.Good.A good tree shows no signicant problems. <br />b.Fair.A fair tree has minor problems that may be corrected with time or corrective action. <br />c.Poor.A poor tree has signicant problems that are irrecoverable. <br />d.Dead.A dead tree shows no sign of life. <br />5.Primary Maintenance—DRG assigns one of the following maintenance needs: <br />a.Remove.Trees recommended for removal have defects that cannot be practically or <br />cost-eectively treated.Most trees in this category have a sizable percentage of dead crown. <br />b.Prune.Removal of one or more limbs to reduce risk,provide clearance,and restore the tree. <br />c.Train.Pruning of young or medium-aged trees to improve tree and branch architecture. <br />d.Discretionary.Roseville may opt to prune or manage the trees for health or aesthetic appearance. <br />e.Palm Prune.Removal of fronds,fruit,or loose petioles when palm parts create a dangerous <br />condition. <br />f.Stump Removal.A stump is present and recommended to be removed. <br />g.Plant.During the inventory,vacant planting sites are identied as Vacant Site Small,Vacant Site <br />Medium,and Vacant Site Large (implying mature tree size),depending on the growing space <br />available and the presence of overhead wires.Lacking local code denitions,planting sites are <br />determined based on standard specications included in accepted technical journals and by the <br />arboriculture industry. <br />6.Defects—DRG identies the conditions which indicate the presence of structural defects recording <br />only the most signicant condition and limit conditions to the following: <br />a.Dead and dying branches. <br />b.Broken and/or hanging branches. <br />c.Branch attachment (adventitious,codominant,multiple,overextended). <br />d.Trunk condition (canker,bulges,ridges). <br />e.Cracks. <br />f.Decay or cavity (large trunk wound). <br />g.Tree architecture (lean,bows,taper,live crown ratio). <br />h.Root problem (dead,decayed,missing,abnormal,girdling,lack of are). <br />7.Risk Rating—DRG evaluates risk and assigns a risk rating based on an assessment of the failure mode <br />(i.e.,branch,whole tree,codominant stem)with the most signicant risk.The specied period for the <br />risk assessment is one year.The risk part of this inventory and evaluation is to maintain compliance with <br />the most recent standards and practices in the arboricultural industry.It is important to note that our <br />inspections are “rapid assessments”and are meant to show a need for further study,and thus are not <br />legally binding in any litigation. <br />Davey Resource Group <br />Page 21