The Contractor shall be expected to perform the following types of emergency/on-call work for the University: (1) Evaluate tree health, structural integrity and safety risk; (2) perform tree pruning and removal; (3) remove trees and related debris; (4) perform stump grinding. The Contractor shall provide its rates/pricing information for all work to be performed, as described more fully in the "Scope of Work" and "Additional Job Requirements" sections in this RFQ. Contractor shall refer to the "Proposal Pricing Format" section of the RFQ for further guidance on how to provide information regarding its costs for services. Evaluate Tree Health, Structural Integrity, and Safety Risk (per hour; approximately 40 hours per year) The Contractor shall provide the following tree risk assessment related to storm events: - Tree Evaluation: The Contractor shall provide an ISA certified arborist with a Tree Risk Assessment Qualification (TRAQ) to survey specific areas for any "Imminent Active Emergency" and provide a "Visual Inspection" within 1-business day of the on-call requests by the University. The onsite arborist shall contact the University Representative by phone if an emergency is observed so the University can determine appropriate mitigation. o An "Imminent Active Emergency" includes but is not limited to the following: Shear cracks, trunk splitting, pronounced ribs indicating axial crack Broken, cracked or detached limbs greater than 6" in diameter. Leaning trunks with visible crack or broken roots, soil heavy or movement in the lower 1/3 of the trunk. o The "Visual Inspection" shall be performed in the most efficient manner possible to assess the likelihood of failure for a large population of trees. - Report: The Contractor shall prepare a report after evaluating the tree health, structural integrity, and safety risk, which shall include the following: o GPS coordinates for each tree assessed so the information collected can be linked directly to a GIS program, such as ArcView. Selected vendors will be provided a shape file compatible with ArcView, including the campus tree GPS locations and required physical characteristics. o A description of the tree or part of the tree with active emergency. This description shall include the following: A photo of tree, location of failure in/on tree, and damage to University or private property. Physical characteristics of the tree which shall include at least the Genus, species, diameter and height. Perform Tree Pruning and Removal (per hour; approximately 20 removals per year The Contractor shall prune and remove trees as deemed necessary by UCD for emergency reasons as set forth in this RFQ. Perform Stump Grinding (per unit/diameter; approximately 20 units per year) Stump grinding shall consist of removing the entire stump and the root system. When grinding the existing stump, the Contractor will grind down to a depth of two feet (2'}. The Contractor shall take care to prevent damage to existing hardscape, sidewalk and curb. The Contractor shall comply with all underground service alerts (USA) prior to grinding. No stumps shall remain, including shavings, for period of time greater than five (5) working days. The cavity shall be filled with sandy loam soil back to original grade at the completion of the grinding. The Contractor shall use barriers to contain debris while grinding.
