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combination of trees and shrubs shall meet or exceed the minimum required <br />canopy cover square footage. <br />c. The minimum canopy cover required shall be calculated as follows: <br />1. Determine ratio of impervious area (including stormwater ponds) to entire <br />site. <br />2. Multiply the impervious area/site area ratio by the square footage of the <br />pervious area to calculate the required canopy cover square footage for the <br />project area. <br />3. The following formula shall be utilized to determine the average canopy <br />cover of a species: [(Minimum + Maximum Spread) ± 4]2 x n x (0.65 for <br />preferred species or 0.50 for acceptable species, as identified in the Ramsey <br />Tree Book). <br />d. Minimum size of plantings. Required trees and shrubs shall meet or exceed the <br />following size standards: <br />Plant Type <br />Size <br />Deciduous Tree <br />1 inch caliper <br />Coniferous Tree <br />5 feet in height <br />Ornamental Tree <br />1 inch caliper <br />Deciduous Shrub <br />2 feet in height <br />Evergreen <br />2 feet in height or width, based on growth characteristics <br />(7) <br />Planting Requirements for Business and Employment Districts (B-1, B-2, B-3, <br />Neighborhood Business, H-1, E-1, E-2, and E-3). <br />a. Business Districts (B-1, B-2, B-3, Neighborhood Business, and H-1). The <br />minimum number of trees required are outlined in the table below. These are <br />minimum requirements and can be supplemented with other plantings, as well <br />as flowers and various ground covers that would be appropriate to produce a <br />complete and quality landscabe. <br />Planting Type <br />Required Numbers <br />Deciduous/coniferous trees <br />1 tree per 50 lineal feet of site perimeter, or 1 <br />tree per 1,000 square feet of building footprint, <br />whichever is greater. For building expansions, <br />1 additional tree is required for each 1,000 <br />square feet of new building footprint area. <br />Shrubs <br />1 shrub per 30 lineal feet of site perimeter or 1 <br />shrub per 300 square feet of building footprint <br />area, whichever is greater. <br />b. Employment Districts (E-1, E-2, and E-3). The minimum number of plantings <br />required shall be determined based on canopy cover. To fulfill the planting <br />requirements, a combination of trees and shrubs shall meet or exceed the <br />minimum required canopy cover square footage. The minimum canopy cover <br />required shall be as follows: <br />1. Determine ratio of impervious area (including stormwater ponds below the <br />100 year flood elevation) to entire site. <br />