INTRODUCTION METHODOLOGY

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2 INTRODUCTION In July of 2010, our office undertook an assessment of the existing trees on the above noted project site with respect to tree preservation. A residential development is proposed for the site (see Site Plan). As a result of the future construction and associated site servicing, it will only be possible to retain trees around the perimeter of the site. The site of the proposed development is a rectangular shaped parcel of land approximately 2.0 hectares in size, located at 663 Commissioners Road West, and an adjacent smaller rectangular parcel roughly of roughly 0.1 hectares fronting on Rosecliffe Terrace. The total site is approximately 2.1 hectares. The site is bound on all sides by Low Density Residential. In terms of topography, the site slopes generally from the south to the north, and is characterized as undulating with a mix of steep slopes and flat plains. Vegetation on the site consists primarily of young to mid-aged trees, with the exception of a mature hedgerow on the east boundary dominated by oak, hickory, ash and basswood. No rare or endangered species were noted on the site. Based on the site layout plans provided by AGM we have determined that all vegetation on the internal portion of the site will be removed as part of significant proposed site work. However, we are confident that a number of trees located around the periphery of the site can be retained. These trees are in fair to good health and will provide a sense of permanence to the development and a buffer to the surrounding residential areas. Trees located on the site are, for the most part, of fair to good quality, with black walnut, scotch pine, and hickory being the dominant species. None of this vegetation is considered significant or unusual. Understory vegetation in this area, which consists of wild raspberry, honeysuckle, buckthorn, and various native and introduced grasses, is considered scrub material and not conducive to residential developments. The proposed development will be developed sensitive to the existing vegetation with the introduction of deep residential lots and a engineering approach which will help to retain as much of the existing vegetation as possible. METHODOLOGY In July of 2010, Ron Koudys Landscape Architects Inc. undertook a detailed site inspection to determine the vegetation types and assess the health of the existing trees. Based on our site inspections, the vegetation was initially identified in terms of "community" using such criteria as dominant vegetation types, vegetation maturity,

3 and topography. In addition to the community assessment, visual and spatial characteristics of the proposed development were analysed with regards to the existing vegetation and the developments effect upon the site and neighbourhood. Special attention was given to addressing the aesthetic value of existing trees and their impact as a neighbourhood feature and potential buffer between the development and adjacent land uses. The purpose of our work was to determine general site characteristics, the suitability of the proposed new site edges, the location of trees to be saved along these edges and the need for any special protective measures. To accomplish these objectives a selective boundary was established identifying trees that would be impacted by construction and trees that could potentially be preserved. Also, those trees whose roots or canopy extend onto this property and would possibly be impacted by the development were surveyed. After a careful review of the proposed project, it was determined that all vegetation on the internal portions of the site would be removed to accommodate the significant amount of site work required. With this in mind, a tree survey was completed for only those areas within 6 metres of the perimeter and 1 metre outside the property boundary. The remainder of the study focuses on those areas of existing trees potentially affected by the proposed development, the size and condition of trees within that zone, and appropriate tree saving techniques. Trees in the survey area were tagged, identified, measured, and located on the site plan with canopies drawn to scale. Trunk and canopy structure, evidence of disease or pests, and overall health were evaluated. These assessment techniques assist in characterizing the vigour of the trees at the time of the assessment and their ability to withstand potential construction impacts. REMOVAL AND PROTECTION OF TREES TO BE RETAINED Trees to be retained and trees to be removed were selected based upon tree vigour data, a detailed site examination, and the requirements of the development (i.e., layout, site services, the site plan supplied by AGM. See T-1 (enclosed) for tree locations. We undertook an extensive review of the preliminary site grading and servicing needs, which included consultations with the project engineer. It was determined that the significant construction impacts would influence the existing trees primarily in the interior of the site, with the possible retention of some trees located around the perimeter of the site as indicated on the Tree Preservation Plan. A Tree Preservation Zone has been established around much of the perimeter of the site (see T-1). The zone establishes the area in which trees located will be preserved (with remedial pruning to enhance tree health) or removed (if they represent a hazardous condition). The tree preservation barrier is to be maintained

4 at the limit of the zone until all site construction has been completed. No construction, stockpiling or heavy equipment will be permitted beyond the construction limit (see Protective Tree Barrier Line / refer to T-1). In this area, trees in poor condition that are to be removed should be felled carefully to minimize the impact to the trees to be retained (refer to Pre-Construction Recommendations). The trees that are to be removed have been indicated by the appropriate symbol (refer to T-1). The successful survival of the trees to be retained is largely dependent on adhering to the recommendations that follow. RECOMMENDATIONS The following practical recommendations are made to enhance the survival potential of the trees to be retained on site. These recommendations apply to all trees within the Tree Preservation Zone. A. Pre Construction Recommendations 1. Prior to tree removal operations, the limit of the clear cut needed for the development will be fenced and clearly marked (i.e. all boundary trees designated for removal to be marked with spray paint). 2. Trees on the site that should be removed for silvicultural, safety and aesthetic reasons should also be marked for cutting. (i.e. spray paint) during the overall tree clearing operation. A light sanitation / improvement cut should be conducted in tree retention areas. Dead, dying and low vigour / high risk trees should be removed to improve growing conditions for the remaining trees and to enhance the stand's visual appearance, as well as to reduce potential safety hazards. This cutting includes interior trees as well as edge trees designated for removal on the Tree Preservation Plan. It may also be prudent to remove certain edge trees initially identified for preservation if their crowns appear unhealthy when their leaves are fully flushed. Any cutting should be encouraged to take place prior to the end of April or after September. All cutting will be done by chain saw. 3. Care should be taken during the felling operation to avoid damaging the branches, stems and roots of the trees to be retained. Where possible all trees are to be felled towards construction to minimize impacts to adjacent vegetation. 4. Stem damage to trees from skidding operations during the removal process should be avoided. Trunks of trees to be retained near the construction zone should be wrapped with three layers of snow fencing to provide protection. 5. Heavy equipment should not be allowed under the drip line (limit of branches) of the trees to be retained. 6. Broken branches on trees to be retained should be cleanly cut by a qualified arborist/horticulturalist as soon as possible after the damage has

5 occurred. 7. Final site grading should ensure that surface water is discharged from the site and the existing soil moisture conditions are maintained. B. Recommendations Related to the Construction Process 1. Snow fencing is to be maintained until all heavy construction work is complete. No movement of equipment or dumping of solvents, gasoline, etc. may occur within this fence line. 2. Where high-quality specimens occur adjacent to areas subjected to intensive construction activity, wooden cribbing (i.e. planks and or plywood construction) should be erected to protect their trunks from damage in the event that heavy equipment breaks down the snow fencing. 3. During the excavation process, roots that are severed and exposed should be hand pruned to leave a clean-cut surface. This will reduce the opportunity for pests or disease to enter through the wounds. 4. If grade changes are required in areas adjacent to trees to be retained, work should be done to minimize impacts to the trees. Tree wells, retaining walls or other site features should be used. 5. Avoid running above ground wires and underground services near trees to be retained. C. Post Construction Recommendations 1. After construction, a qualified arborist / horticulturalist should deep root feed and prune all trees that were retained. 2. Avoid discharging rain water leaders adjacent to retained trees. This may cause an overly moist environment which will cause the tree roots to rot. 3. After all work is completed, snow fences and other barriers should be removed. 4. A final review must be undertaken by a qualified environmental consultant to ensure that all mitigation measures as described above have been met. 5. It is recommended that the existing ground layer vegetation remain intact so as not to disturb the virgin soil around the base of the existing trees. 6. Long-term monitoring of tree health is recommended to identify any problems that may surface following construction operations. SUMMARY These recommendations are designed to enhance the survival of trees to be retained. While it is always positive to retain as many trees as possible on a site, some trees, because they are in poor condition or an undesirable species, cannot be saved for safety, aesthetic, or silvicultural reasons.

6 There is no guarantee that the trees to be retained will not be affected by proposed site construction. Some subsequent tree management may be required to ensure the health of the trees. TREES TO BE REMOVED The following trees are to be removed. This list has been compiled with consideration for the health, location, liability and construction impacts which may occur on the existing trees. Review noted structural issues such as large cavities and conflicts with future building layouts, access driveways and site engineering. TREES TO BE REMOVED ID No. TREE SPECIES DBH CROWN STRUCTURE CANOPY REASON (diameter) 101 Scotch Pine 29 4 forest interior Construction 102 Scotch Pine 29 1 forest interior Construction 103 Scotch Pine 15 1 forest interior Construction 104 Cherry? 11 1 forest interior Construction 105 Pignut Hickory 11 5 forest interior Construction 106 White Ash 14 5 Construction 107 White Ash 17 5 Construction 108 Scotch Pine 28 3 Construction 109 Scotch Pine 15 1 Construction 110 Scotch Pine 21 1 Construction 116 White Ash 14 5 Construction 118 Black Cherry 12 2 MS 2 Construction 120 Scotch Pine 32 1 Construction 121 Black Cherry 13 4 Construction 123 Scotch Pine 22 2 Construction 135 Scotch Pine 15 1 Construction 139 Black Walnut 40 5 Construction 145 White Ash 22 4 Construction 146 Hackberry 12 4 Construction 151 Scotch Pine 21 1 MS 2 Construction 152 Black Walnut 65 5 Construction 155 White Ash 16 5 forest interior Construction 156 White Ash 18 2 Construction 157 White Ash 11 4 forest interior Construction 158 Scotch Pine 23 1 Construction 159 Black Walnut 12 5 forest interior Construction

7 160 Scotch Pine 33 1 Construction 162 Scotch Pine 37 1 Construction 163 Black Walnut 19 3 forest interior Construction 164 Black Walnut 11 3 forest interior Construction 166 Black Walnut 13 5 forest edge Construction 167 Black Walnut 18 2 forest interior Construction 170 Black Walnut 18 2 forest interior Construction 171 Black Walnut 34 4 forest int., MS 2 Construction 172 Black Walnut 21 5 forest interior Construction 180 Black Walnut 23 5 forest edge 5 Construction 181 Black Walnut 12 4 forest interior Construction 182 Black Walnut 26 5 semi open field 8 Construction 183 Black Walnut 19 5 forest edge Construction 184 Black Walnut 24 5 forest edge Construction 185 Black Walnut 25 5 forest edge Construction 186 Black Walnut 25 4 forest edge Construction 187 Black Walnut 26 5 forest edge Construction 188 Green Ash 18 5 forest edge Construction 189 Green Ash 17 5 forest edge Construction 190 Buckthorn 12 5 forest edge Construction 191 Apple 26 4 forest edge Construction 192 Apple 22 3 forest edge Construction 193 Buckthorn 16 5 Construction 194 Green Ash 16 5 Construction 210 Black Cherry 13 5 open grown Construction 232 Scotch Pine 19 1 Construction 233 Cedar 15 4 Construction 239 Pignut Hickory 16 5 Construction 240 Black Cherry 15 5 Construction 241 Black Cherry 11 5 Construction 246 Black Cherry 23 4 Construction 247 Black Cherry 30 5 Construction 248 Black Cherry 21 3 Construction 249 Norway Maple 17 5 Construction 250 Crabapple 35 2 Construction 251 Buckthorn 9 5 Construction 254 Black Cherry 24 1 forest interior Construction 255 Black Cherry 26 1 forest interior Construction 257 Buckthorn 16 5 Construction 258 Scotch Pine 22 3 forest interior Construction 259 Scotch Pine 24 3 forest interior Construction

8 260 Scotch Pine 23 4 forest interior Construction 261 Scotch Pine 27 3 forest interior Construction 262 White Ash 14 5 forest interior Construction 263 Buckthorn 9 2 forest interior Construction 264 Buckthorn 15 5 Construction 265 White Ash Construction 266 White Ash Construction 267 Black Walnut Construction 268 White Ash 8 5 MS2 4 Construction 270 White Ash Construction 271 Scotch Pine 24 1 Construction 272 Scotch Pine 31 1 Construction 273 White Ash Construction 274 White Ash Construction 275 Black Walnut Construction 276 Black Walnut Construction 277 Black Walnut Construction 278 Black Walnut Construction 279 Black Walnut Construction 280 Black Walnut Construction 281 Black Walnut Construction 282 Black Walnut Construction 283 Black Walnut Construction 284 Black Walnut Construction 285 Black Walnut Construction 286 Black Walnut Construction 287 Black Walnut Construction 288 Black Walnut Construction 289 Black Walnut Construction 290 Black Walnut Construction 291 Black Walnut Construction 292 Black Walnut 18 5 MS2 9 Construction 293 Black Walnut Construction 294 Black Walnut Construction 295 Black Walnut Construction 296 Black Walnut Construction 297 Black Walnut Construction 298 Black Walnut Construction 299 Staghorn Sumac Construction 300 Black Walnut Construction 301 Black Walnut Construction

9 302 Black Walnut Construction 5021 Plane Tree Construction

10 FIELD NOTES ID No. TREE SPECIES DBH CROWN STRUCTURE DECLINE COMMENTS CANOPY SYMPT. (diameter) 101 Scotch Pine 29 4 FI 102 Scotch Pine 29 1 FI 103 Scotch Pine 15 1 FI 104 Cherry? 11 1 FI 105 Pignut Hickory 11 5 FI 106 White Ash White Ash Scotch Pine Scotch Pine 15 1 trunk rot 110 Scotch Pine 21 1 dead 111 Scotch Pine Bitternut Hickory 26 5 MS Apple 20 MS 4, L trunk cavity, >45d lean, rust spots 115 Hawthorn 13 2 lean, leaf rust 116 White Ash Scotch Pine Black Cherry 12 2 MS 2 trunk damage 119 Scotch Pine 15 1 Dead 120 Scotch Pine Black Cherry 13 4 C1, C3? leaf discolour, chlorosis? 122 Bitternut Hickory Scotch Pine Buckthorn 11 5 MS Basswood Basswood Basswood 50 3 trunk cut off midway up 128 Basswood Red Oak 60 4 fork 130 Scotch Pine Basswood degree lean 132 Norway Maple Red Oak 81 5 MS 2 weeping at base 134 Black Cherry 40 3 lean S2 significant basal damage, DF 135 Scotch Pine 15 1 cuts to trunk, axe or saw? 136 Elm 31 3 MS 3 trunk cavity, large basal 137 Black Walnut Basswood 48 5 MS 4, 2 10 degree lean 139 Black Walnut Red Oak Red Oak 71 5 Dead fall (M 3) 142 Red Oak 87 5 trunk 2m cavity in trunk, large canker 143 Red Oak 47 4 connected with base Dead falls (S M 4), white irregular small spots leaf infection 144 Scotch Pine White Ash Hackberry 12 4 Leaf insect larvae

11 147 Scotch Pine Scotch Pine Scotch Pine Hawthorn 9 2 MS 3 Rust spot 151 Scotch Pine 21 1 MS 2 Dead 152 Black Walnut Black Walnut 45 4 Small deadfall potential 154 Black Walnut 23 5 FE 155 White Ash 16 5 FI 156 White Ash White Ash 11 4 FI 158 Scotch Pine Black Walnut 12 5 FI 160 Scotch Pine 33 1 Dead 161 White Ash 11 4 FE 162 Scotch Pine 37 1 Dead 163 Black Walnut 19 3 FI MDB 164 Black Walnut 11 3 FI 165 Black Walnut 35 4 FE large rotten limbs 166 Black Walnut 13 5 FE 167 Black Walnut 18 2 FI 168 Black Walnut 20 4 FE, MS 2 rubbing with # Black Walnut 28 4 FE wrapped in H.O.'s wire 170 Black Walnut 18 2 Fi 171 Black Walnut 34 4 FI, MS 2 large rotten limbs, risk? 172 Black Walnut 21 5 FI tiny lean, 5 10 degrees 173 Black Walnut 24 4 FE 174 Black Walnut 18 5 FE 175 Black Walnut 15 5 FE 176 Black Walnut 27 5 FE bent bottom, bad pruning 177 Staghorn sumac 13 2 OG 2 ft. trunk damage, rot 178 Black Walnut 22 4 MS 3 someone pruned 179 Black Walnut 28 5 fork at about BH 180 Black Walnut 23 5 FE Black Walnut 12 4 FI trunk damage 2.5m up 182 Black Walnut 26 5 semi open field Black Walnut 19 5 FE 184 Black Walnut 24 5 FE 185 Black Walnut 25 5 FE 186 Black Walnut 25 4 FE 187 Black Walnut 26 5 FE 188 Green Ash 18 5 FE 189 Green Ash 17 5 FE 190 Buckthorn 12 5 FE 191 Apple 26 4 FE 192 Apple 22 3 FE S2 Lean 193 Buckthorn Green Ash Cedar 12 5 OG 196 Green Ash 51 5 OG 197 Norway Spruce? 20 4 OG 198 White Spruce 20 4 OG 199 White Spruce 25 4 OG 200 White Spruce 17 4 OG

12 201 White Spruce 17 4 OG 202 White Spruce 29 5 OG 203 Cedar 35 5 OG 204 White Spruce 29 4 OG 205 White Spruce 12 2 OG 206 White Spruce 10 2 OG 207 White Spruce 27 4 OG 208 White Spruce 12 4 OG 209 White Spruce 19 4 OG 210 Black Cherry 13 5 OG 211 Pignut Hickory Pignut Hickory Pignut Hickory Pignut Hickory Pignut Hickory Pignut Hickory Pignut Hickory Pignut Hickory Pignut Hickory Buckthorn Pignut Hickory Bitternut Hickory Pignut Hickory Pignut Hickory Pignut Hickory Black Cherry Pignut Hickory Pignut Hickory Black Cherry 12 5 c1 230 Pignut Hickory Black Cherry Scotch Pine Cedar Pignut Hickory Black Cherry Hackberry Red Oak Pignut Hickory Pignut Hickory Black Cherry Black Cherry Black Cherry 20 5 c2 243 Elm Pignut Hickory Pignut Hickory Black Cherry Black Cherry Black Cherry 21 3 lean 249 Norway Maple Crabapple Buckthorn Buckthorn Pignut Hickory 26 2 s2, s4 254 Black Cherry 24 1 FI lean

13 255 Black Cherry 26 1 FI lean 256 Black Cherry Buckthorn Scotch Pine 22 3 FI 259 Scotch Pine 24 3 FI 260 Scotch Pine 23 4 FI 261 Scotch Pine 27 3 FI 262 White Ash 14 5 FI 263 Buckthorn 9 2 FI 264 Buckthorn White Ash White Ash Black Walnut White Ash 8 5 MS White Ash 26 3 C1, C3 (?) Scotch Pine Scotch Pine White Ash White Ash Black Walnut Black Walnut Black Walnut Black Walnut 28 5 S Black Walnut Black Walnut Black Walnut Black Walnut Black Walnut Black Walnut Black Walnut Black Walnut Black Walnut Black Walnut Black Walnut Black Walnut Black Walnut Black Walnut 18 5 MS Black Walnut Black Walnut 17 5 C Black Walnut 9 4 S Black Walnut Black Walnut Black Walnut 13 4 C Staghorn Sumac Black Walnut Black Walnut Black Walnut Plane Tree Norway Maple 26 5 C1 7.5

14 TREE PRESERVATION BARRIER DETAIL

15 TREE INVENTORY CONSTRAINT CODE SYMBOL F L TREE STRUCTURE Significant forking contributing to structural instability Significant lean (>15%) contributing to structural instability CROWN CONDITION 5 Healthy: less than 10% crown decline 4 Slight decline: 11% - 30% crown decline 3 Moderate decline: 31% - 60% crown decline 2 Severe decline: 61% - 90% crown decline 1 Dead CANOPY C1 C2 C3 C4 C5 C6 C7 C8 STEM S1 S2 S3 S4 S5 S6 S7 S8 S9 ROOTS R1 R2 R3 DECLINE SYMPTOMS Leaf discolouration Leaf disfiguration Leaf chlorosis Abnormal leaf shape Abnormal leaf shape Insect infestation Girdling vine Epicormic shoots Extensive cavity Visible basal rot Entry point for insect infestation Fungi/galls/cankers Sun scald Frost cracks Lightning scar Bark stripping Bark girdling Exposed surface roots Severed roots Absence of buttress flare ECO-SETTING Og Open grown Hr Hedgerow Fe Forest edge Fi Forest interior

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