Agmt11 Davey Resource Group- A Division of the Davey Tree Expert Co.

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Once final attributes are determined and the collection specification is finalized, DRG will meet with the City for a pre - project meeting. This meeting will serve a number of purposes. The first priority will be to determine routing of inventory arborists. With the City's assistance, we will map out a logical sequence for moving throughout the City. In addition to determining work sequence, we also meet to create a contact directory for our staff and yours. This will help us to define the best person(s) on Redwood City staff to contact if the need arises. At this point, we also give the City of Redwood City contact information for all DRG managers and field staff assigned to this project. This will give Redwood City a point of contact at any time. At this meeting, we also ask for any parking information or permitting information that might be needed. It is our intent to be well prepared going into the contract so that your staff's day -to -day duties are not interrupted by our presence in the City. Once the project is kicked off, we invite the City of Redwood City to examine and approve of our first days of data collection to look for irregularities that may occur. This type of "pilot project" allows Redwood City to make adjustments to the collection specification as needed once the data is viewed live. This is in addition to our quality control that takes place on a regular basis. Once data collection is begun, we download it weekly into a TreeKeeper site that is accessible by Redwood City staff. Downloading often allows you to see our progress. We also give the City a weekly status report so that you know what areas we are working and how much inventory is left based on your approximate projections of 31,000 trees and vacant sites. Tree Inventory System Software Used The City of Redwood City will be well served by Davey Resource Group's data collection technology and logistical expertise. DRG currently has, and is experienced at operating, all the equipment necessary to provide the project results that Redwood City requires. This equipment includes: • Data Collection Equipment — DRG uses pen tablet computers for GIS field data collection. These computers, installed with Davey's ArcPad tree collection software customized for the City of Redwood City's needs. The data is then uploaded daily into Davey's TreeKeeper 7.7. Davey typically conducts tree data collection and GIS positioning using a combination of i-Blue global positioning system (GPS) receivers with the ortho - rectified aerial photographs already provided by the City and loaded into our WPS software. The aerial photographs have submeter resolution and the inventory arborist utilizes the GPS receiver and aerial photograph to best determine where the data point actually resides. This method is highly accurate and is much more efficient than using a Trimble unit, especially in areas of heavy canopy or canyons where satellite signal is often reduced or obstructed. • Tree Collection Interface (TCI) — Inventory data sets are uploaded into DRG's TCI data management system. TCI works concurrently with DRG's ArcPad collection system to provide real time electronic Quality Assurance of inventory data. After data passes quality control and assurance, it is prepared for uploading into Redwood City's TreeKeeper 7.7 management system. DRG will provide an updated geodatabase that contains an updated and corrected version of the City's street tree inventory in California State Plane Zone 3, NAD 83, Survey feet. Prepared for City of Redwood City, California 12 Prepared by Davey Resource Group