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27 2. An interview was conducted and scoredwith each proposer’s Project Manager using standard 28 questions. 29 3. Pricing was redacted during steps one and two in the process. Following receipt of all written 30 and interview scores, prices were revealed and added into the rubric. 31 Tabulation of the scores showed Tree Trust as the apparent Best Value.(Attachment C). 32 Proposal #1 was from Precision Tree Service and received a score of 69.95 (out of a possible 33 100) and a pre-clarification price of $2,533,672. 34 Proposal # 2 was from Tree Trust and received a score of 100 points (out of a possible 100) 35 and a pre-clarification price of $1,624,956. 36 Following scoring, staff engaged in a clarification phase with Tree Trust,as the apparent Best Value, 37 to clarify the scope and ensure all parties understood the proposed program. 38 After scope confirmationduring clarification, thebaseproposal cost for Tree Trust is$1,409,473 39 over the next three years (2022 through 2024). The difference between the current price and the 40 original proposed cost was the result of a reduction in the number of trees required for removal due 41 to additional removalsdone by the City in 2021 and further refinement of the City’s public ash tree 42 inventory. 43 The Tree Trust proposal calls for the removal of 914 ash trees (80% of the City’s current ash trees) 44 while preserving and treating an estimated 238 ash trees that are currently being treated (20% of the 45 City’s public ash trees). This is a deviation from the City’s original ideaof removing all public ash 46 trees for this program. As an expert vendor, Tree Trust recommended this based on recent research 47 on the environmental benefits of treating some established ash trees as compared to complete 48 removal. 49 The treatment method that Tree Trust is proposing would utilize a low risk, non-neonicotinoid 50 insecticide, consistent with current best management practices, which is injected directly into the 51 tree, in order to preserve the critical ecosystem services provided by our mature ash trees. The 52 preservation of 20% of the City’s ashtrees, if possible,would allow for greater long termdiversity 53 of Roseville’s urban forest, help to maintain tree canopy, and capitalize on the investment that the 54 City has already made into these established trees. 55 With this plan, the City would need to continue to treat these 238 ash trees following the end of this 56 program, at an approximate cost of $15,000 per year in 2022 dollars. However, recent research 57 seems to indicate that reducing the total number of ash treesin the community (and thereby, 58 removing the EAB food source), may allow for a less frequent treatment schedule. 59 In addition to the removal or treatment of all of the City’s public ash trees, the Tree Trust proposal 60 calls for: 61 Planting 1,152 new trees, one for each public ash tree currently inventoried in Roseville. 62 Removal to include stump grinding and restoration. 63 Developing and implementing an ongoingcommunity engagement process. The process shall 64 include a minimum of three meetings per year, door hangers, mailings and content for the 65 City website. Page 2 of 5