Agenda - Environmental Policy Board - 04/17/2023

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(e) Tree preservation plan required. To minimize tree loss and to mitigate tree removal on wooded lots or parcels containing trees,a tree preservation plan shall be submitted with all site plan,preliminary plat and lot division applications. The plan shall be approved by the city. (f) Tree preservation plan content. The content of all tree preservation plans submitted shall, for purposes of city staff review, include the following: (1) A tree inventory indicating size, species,location,and condition of all significant trees(six-inch DBH or greater)and clumps of nonsignificant trees within the site limits; (2) Identification of trees to be protected, preserved,or undisturbed and to be removed; (3) Areas proposed to be designated as natural preserves where all natural vegetation will be protected and preserved; (4) Proposed disturbance zones; (5) Location and dimensions of building pads, construction zone for each lot and grading contours of the site; (6) Locations and details of tree protection fencing to be installed for all trees to be preserved; and (7) Calculation of significant tree inches removed on the site. (g) Tree preservation barriers. (1) There shall be no movement, clearing,or storage of equipment within a designated tree protection area. No person shall permit the placement of construction materials, debris,soil deposits, or fill within the canopy of any protected tree areas. (2) Before any construction or grading takes place,snow fencing or erosion control fencing shall be installed around the borders of wooded areas at the drip-line of outer trees. If less protection is necessary due to the proximity of building structures or infrastructure,such reduced protection shall require approval by the city prior to any construction activity taking place. (3) No construction work shall begin until the protective fencing is installed and inspected by the city. (4) Silt barriers or similar effective erosion control barriers shall be required in any area where erosion or siltation may cause damage to protected trees. (5) All protective fencing and erosion control barriers must be maintained throughout the land disturbance and construction process. (6) The mowing, clearing,and grubbing of brush or debris located within or under the drip-line of existing trees may be allowed; provided such mowing, clearing,or grubbing is accomplished by hand or by mowers. The use of heavy equipment for this purpose is not allowed. (h) Standards of preservation during subdivision. (1) Developments in residential districts may remove or disturb up to 50 percent of the total inches of significant trees.Any removal or disturbance beyond this threshold shall require reforestation or restitution. (2) Developments in nonresidential districts may remove or disturb up to 60 percent of the total inches of significant trees.Any removal or disturbance beyond this threshold shall require reforestation or restitution. (3) Tree inches of significant trees to be removed for water quality treatment ponds and rights-of-way for arterial and major collector roadways shall be exempt from the calculation of total significant tree inches on a development site. Created: 2023-02-13 14:08:08 [EST] (Supp. No. 11) Page 2 of 4