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Davey Resource Group, Inc. <br />Tree Inventory Analysis & Maintenance Strategy <br />Page iv <br />Inventory Analysis Summary <br />Inventoried Sites <br />Trees = 4,602 <br />Annual Benefits <br />Avoided Stormwater Runoff = $3,574 <br />Air Pollution Removal = $3,251 <br />Carbon Sequestration = $11,854 <br /> <br />Top 5 Inventoried Species Top 5 Inventoried Genera <br />SPECIES % OF INVENTORIED <br />POPULATION GENUS % OF INVENTORIED <br />POPULATION <br />Green ash 26%* Ash 27%* <br />Boxelder 9% Maple 22%* <br />Sugar maple 8% Elm 11% <br />American elm 6% Spruce 7% <br />American basswood 5% Oak 5% <br />* Exceeds industry guidelines of no more than 10% of <br /> one species in tree population. <br />* Exceeds industry guidelines of no more than 10% of <br /> one species in tree population. <br />Relative Age Distribution <br />The approximate age of a tree can be identified by the tree’s <br />diameter size. Of the inventoried trees: <br />37% were young (0-8”), compared to the 40% industry <br />guidelines. <br />43% were established (9-17”), compared to the 30% <br />industry guidelines. <br />13% were maturing (18-24”), compared to the 20% <br />industry guidelines. <br />7% were mature (>24”), compared to the 10% industry <br />guidelines. <br />Pest Susceptibility <br />76% of inventoried trees are susceptible to one or more <br />pests, including: <br />Emerald ash borer. <br />European spongy moth. <br />Asian longhorned beetle. <br />Condition <br />Of the 4,602inventoried trees, there were: <br />7% in Excellent condition. <br />30% in Good condition. <br />47% in Fair condition. <br />14% in Poor condition. <br />2% were Dead <br />Species Diversity <br />11