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Individual Tree Inspection Process During data collection,DRG’s urban foresters walk by each tree and inspect the tree from the ground.Based on the conditions at the time of the inspection,DRG’s staidentify the tree's species and its location,measure tree diameter,and rate its health.DRG’s urban foresters also assess tree risk and suggest the specic maintenance involved in mitigating that risk as well as collecting all other information at this time.When data collection for an individual tree is complete,DRG’s urban foresters walk to the next tree and follow the same steps,in the same order,to ensure consistent data collection. DRG formally routes the collection of inventory data to ensure that stacollect all the sites in the project area in a systematic manner.Throughout the inventory process,DRG maps the streets,parks,and properties inventoried and shares that information with the City.DRG also informs the City of Roseville where sta intend to collect data next.DRG’s urban foresters collect data Monday through Friday and often on weekends with our clients’permission. Data Fields For Roseville’s inventory,DRG will collect the following data elds specied in the City’s Request for Proposal (RFP)as dened in Appendix C of this proposal;: 1.Address (street address and X and Y coordinates) 2.Species 3.Tree size 4.Condition 5.Defects 6.Maintenance needs 7.Plant 8.Tree risk assessment and rating 9.Overhead utilities 10.Date of inventory 11.Multi-stem tree 12.Further inspection The data elds listed above give Roseville ample information to manage their trees,planting sites,and stumps proactively.However,if Roseville has specic needs that the above data elds do not address,such as tree roots lifting sidewalks or clearance concerns,contact DRG to customize the project’s scope of work. Upgrading the Inventory In addition to collecting trees,planting sites,and stumps,DRG can inventory other infrastructure that the City might be managing,such as shrub rows,woodlots,natural or environmentally sensitive areas,irrigation boxes, benches,signage,and turf.DRG’s urban foresters can also take and link pictures to tree records.DRG can upgrade the City’s inventory by changing the current scope of work or by further developing the project to have additional phases.If Roseville is interested in learning more about options for upgrading the inventory,contact DRG for information and fees. Tree Risk Assessment During the inventory,DRG’s urban foresters perform an inspection of each tree that follows the ANSI tree risk assessment (ANSI 2017).For the City’s inventory,DRG will complete a 360-degree ground-based visual inspection of the crown,trunk,trunk are,above-ground roots,and site conditions around the tree in relation to targets.The assessment only includes conditions detected from the ground.Visual inspection does not include aerial or subterranean inspection,testing,or analysis unless stated in the scope of work.DRG is not responsible for the discovery or identication of non-visually observable,latent,dormant,or hidden conditions Davey Resource Group Page 8