Re: 105 Avondale Court and 143 Bluewater Place, Burlington Preliminary Tree Preservation Plan

Transcription

1 Memo Project No To: From: Ron Thomson, First Urban Katharina Richter ate: May 12, 2016 Re: 105 Avondale Court and 143 Bluewater Place, Burlington Preliminary Tree Preservation Plan Natural Resource Solutions Inc. (NRSI) was retained by First Urban to complete several environmental studies for the proposed re of 105 Avondale Court and 143 Bluewater Place in Burlington, Ontario. Memos on a tree inventory and aquatic habitat assessment were submitted in ecember, A pre-consultation meeting took place March 9, 2016, at which time the need for a Tree Preservation Plan (TPP) was identified, as had also been identified in the Tree Inventory Memo (NRSI, ecember 15, 2015). This memo is a preliminary TPP; it will be confirmed and updated where warranted based on the final plan once available, including grading and servicing. This report summarizes the tree retention analysis based on details of the proposed, as well as tree protection measures for trees that are to be retained. Tree removal and retention was based on two considerations: 1) Trees identified as having a high potential for structural failure. The removal of these trees is recommended for safety etc., especially if they are located within striking distance of a component of the proposed, or existing off-site sidewalks, roads, or buildings. For the purpose of this report, trees which fall into this category are identified for removal. 2) Trees that require removal based on the extent of proposed. This was determined by comparing the location of the trees to the location of the components of the proposal. Table 1 provides a summary of all inventoried trees. See Appendix I for a detailed list of individual trees, including location (on-site or off-site), proposed action (retain or remove), and rationale for removal. 225 Labrador rive, Unit 1, Waterloo, Ontario, N2K 4M8 Tel: (519) Web: info@nrsi.on.ca

2 Table 1. Summary of Inventoried Trees Category Number of Trees Overview On-site trees 344 Off-site trees 25 Total trees inventoried 369 High Potential of Structural Failure On-site trees 65 Off-site trees 6 Total trees with a high potential for structural 71 failure Retention/Removal Analysis of On-site Trees Trees to be retained 146 Trees to be removed because of proposed 159 Trees to be removed because they have a high 39 potential for structural failure Total trees to be removed on-site 198 Of the 369 trees inventoried, 347 are within the subject property or on the property boundary. Of these, 159 trees are to be removed because of the proposed, plus an additional 39 trees that have a high degree of structural failure and should be removed for safety reasons. Six trees located outside of the subject property, but in close vicinity, have also been identified as having a high degree of structural failure. However, because they are located outside of the subject property, they have been identified as trees to be retained. Trees to be retained and removed are shown on the attached map. A total of 12 Butternut trees were observed on the subject property or immediately adjacent. Of these, 7 were confirmed to be Butternut Hybrids, which are not afforded protection under the ESA. ue to the crown height of the remaining 5 trees, leaf, bud, and/or twig samples could not be obtained to determine whether they are pure Butternut or Butternut Hybrid trees. However, given that the other trees have been verified as Butternut Hybrids, it is highly likely that all Butternut trees inventoried are hybrid. A Butternut Health Assessment report has been completed and must be submitted to the Ministry of Natural Resources and Forestry (MNRF) at least 30 days prior to registering an eligible activity to kill, harm, or remove a Butternut tree. uring this 30 day period, no Butternut trees (of any category, including hybrid trees) may be killed, harmed, or removed, and MNRF may contact you for an opportunity to examine the trees. Three Butternut trees are proposed for removal based on the proposed ; with an additional 2 proposed for removal on-site based on safety concerns. Trees to be retained are to be fenced off with tree protection fencing as per the City of Burlington Specifications Index for Tree Protection and Preservation (Spec No. SS12A), February 2013, which is attached in Appendix II. The location of the tree protection fencing has been shown on Map 2. There are no compensation requirements for the tree removals on the subject property. The will include some landscape plantings that will, in part, provide some compensation. It is recommended that the plantings be comprised of native species. 2

3 I trust that this information is helpful. If you have any questions, please do not hesitate to contact me. Sincerely, Natural Resource Solutions Inc. Katharina S. Richter, B.E.S Terrestrial & Wetland Biologist 3

4 MAPS

5 Ma p1 LAKESHOR ER AVONALECR T Legend ( ( 105 Avondale Court and 143 Bluewater Place, Burlington Ontario Tree Inventory and Preservation Plan Invento riedtree to b e R eta ined(cro wnto Sc a le) Invento riedtree to b e R em o ved(cro wnto Sc a le) N Co nfirm edbuternuthyb rid Likely ButernutHyb rid White Ceda rhedgero w (46Trees) O P P rim a ry R o a ds Sec o nda ry R o a ds Co nc eptua lsite P la n M BLUEWATER P L Q Co nc eptua lp a rking P la n Wa terb o dy L K BLUEWATER P L E R Ma pp ro duc edb y Na tura lr eso urc e So lutio nsinc.thism a pispro prieta ry a nd c o nfidentia la ndm ustno tb e duplic a tedo rdistrib utedb y a ny m ea nswitho ut expresswritenperm issio no fnr SI.a ta pro videdb y MNR Co pyright: Queen sp rinteronta rio. P ro jec t:1688 a te:ma y 12,2016 NA83-UTM Z o ne 17 Size:24x36" J T S Metres 1:400 I SECOR LANE H C Polygon EE CC AA JJ BB II W V U X Z Y F G B A Lake Ontario KK LL FF GG HH P a th:x :\1688_FirstUrb a nburlingto n\nr SI_1688_Ma p1_treeinvento ry_1k_po ster_2016_05_12_jsf.m xd

6 AVONALE CRT Map 2 LAKESHORE R 105 Avondale Court and 143 Bluewater Place, Burlington Ontario Tree Protection Plan Legend ( Inventoried Tree to be Retained (Crown to Scale) Confirmed Butternut Hybrid Likely Butternut Hybrid White Cedar Hedgerow (46 Trees) Tree Protection Fencing Primary Roads Secondary Roads M BLUE WATER PL Conceptual Site Plan Conceptual Parking Plan Waterbody L K BLUE WATER PL E R Map Produced by Natural Resource Solutions Inc. This map is proprietary and confidential and must not be duplicated or distributed by any means without express written permission of NRSI. ata provided by MNR Copyright: Queen s Printer Ontario. Project: 1688 ate: May 12, 2016 NA83 - UTM Zone 17 Size: 24x36" 1:400 J T S Metres I 770 H C Polygon CC AA JJ BB II W V U Z Y 538 X F G B A SECOR LANE 670 EE Lake Ontario KK LL FF GG HH Path: X:\1688_FirstUrbanBurlington\NRSI_1688_Map2_TPP_1K_poster_2016_05_10_JSF.mxd

7 Natural Resource Solutions Inc. Appendices APPENIX I Tree Inventory ata

8 105 Avondale Court and 143 Bluewater Place, Burlington - Tree Inventory Appendix I: Tree Inventory ata Tree Number Common Name Scientific Name Native/ Nonnative BH (cm) Stem Count Crown Radius (m) Potential for Structural Failure Overall Condition Location Action 501 Butternut Hybrid Juglans X Non-native Low Good On-site Remove 502 Butternut Species * Juglans sp. Native Medium Fair On-site Remove 503 Butternut Species * Juglans sp. Native Medium Fair On-site Remove 504 Scots Pine Pinus sylvestris Non-native Medium Fair On-site Retain Rationale for Removal Comments Unbalanced crown, some defoliation, and dieback, mostly due to competition; otherwise, vigorous. Some dieback, growing on slope, phototrophic lean, history of branch failure, some frass near root flare, some staining (not butternut canker). Not able to positively confirm whether tree is pure or hybrid butternut as lowest portion of crown too high to obtain leaf/twig samples. Likely Butternut hybrid. Some dieback and history of branch failure. Not able to positively confirm whether tree is pure or hybrid butternut as lowest portion of crown too high to obtain leaf/twig samples. Likely Butternut hybrid. Unbalanced crown, stem with "S" bend, sapsucker feeding, vines up stem, competition with adjacent trees. 505 Norway Maple Acer platanoides Non-native Medium Fair On-site Retain Reduced crown due to competition with other trees, some staining, bark split with good compartmentalization, ivy ground around root zone and up stem. 506 Scots Pine Pinus sylvestris Non-native Medium Poor On-site Retain Poor structure, crown thinning and dieback, extensive ivy up stem. 507 Scots Pine Pinus sylvestris Non-native High Very Poor On-site Remove Safety Most of crown dead, extensive ivy up stem. 508 Scots Pine Pinus sylvestris Non-native High ead On-site Remove Safety Located between the fence and watercourse. 509 Butternut Species * Juglans sp. Native Low Fair On-site Retain 510 American Basswood Tilia americana Native Low Fair On-site Retain Minimal evidence of butternut canker, some reduced crown, shade pruning, some dieback due to competition with adjacent trees, otherwise vigorous. Not able to positively confirm whether tree is pure or hybrid butternut as lowest portion of crown too high to obtain leaf/twig samples. Likely Butternut hybrid. Unbalanced crown, defoliation, phototrophic lean, ivy growing around root zone. 511 Norway Maple Acer platanoides Non-native Low Fair On-site Retain Growing on slope, phototrophic lean, unbalanced crown, ivy growing around stem, tar spot. 512 American Basswood Tilia americana Native Medium Fair On-site Retain Growing on slope, strong phototrophic lean away from creek, unbalanced crown. 513 American Basswood Tilia americana Native Medium Fair On-site Retain Strong phototrophic lean, growing on slope, unbalanced crown, ivy growing around base. 514 Norway Maple Acer platanoides Non-native High ead On-site Remove Safety 515 Silver Maple Acer saccharinum Native Medium Fair On-site Retain Growing on slope, crown hanging over both properties, sunken bark, history of branch failure, some dieback. 516 White Ash Fraxinus americana Native Medium Poor On-site Retain ieback, early leaf drop. 517 White Ash Fraxinus americana Native Medium Fair On-site Retain Mostly one sided crown, some dieback. 518 Norway Maple Acer platanoides Non-native High Poor On-site Remove Safety Cavity with carpenter ants and frass, lean, girdled root, staining, exposed root, dieback, and tar spot. 519 Hawthorn Species Crataegus sp. Native Medium Fair On-site Retain Some dieback, but likely some due to shading, seams near root flare from old fused stems, lean, unbalanced crown. 520 Colorado Spruce Picea pungens Non-native Medium Fair On-site Retain One side extensive dieback due to shading, otherwise fair condition. 521 Black Walnut Juglans nigra Native Low Good On-site Retain Minimal dieback and defoliation, otherwise vigorous. 522 Colorado Spruce Picea pungens Non-native Low Fair On-site Retain Unbalanced crown and shade pruning. 523 Serviceberry Species Amelanchier sp. Non-native Medium Fair On-site Retain Bulging root flare, large calloused wound with decay, bark cracks on stem and scaffold branches. 524 Colorado Spruce Picea pungens Non-native Low Good On-site Retain Minimal dieback and thinning, otherwise vigorous. Page 1 of 14

9 105 Avondale Court and 143 Bluewater Place, Burlington - Tree Inventory Appendix I: Tree Inventory ata Tree Number Common Name Scientific Name Native/ Nonnative BH (cm) Stem Count Crown Radius (m) Potential for Structural Failure Overall Condition Location 524 Eastern Cottonwood Populus deltoides Native Medium Fair On-site Retain Action Rationale for Removal Comments Leaning towards water, upper crown broken, potential to prune away broken limb. 526 Norway Spruce Picea abies Non-native Low Good On-site Retain Minor dieback, otherwise vigorous. 527 Norway Spruce Picea abies Non-native Low Good On-site Retain Some crown thinning for lines, but overall vigorous. 528 American Basswood Tilia americana Native Medium Fair On-site Retain Poor leader structure, phototrophic lean, some dieback, unbalanced crown. 529 White Elm Ulmus americana Native High ead On-site Remove Safety Peeling bark, unbalanced crown. 530 Butternut Hybrid Juglans X Non-native Low Good On-site Retain Phototrophic lean, growing on slope. 531 Eastern Hemlock Tsuga canadensis Native Low Good On-site Retain Minor dieback, otherwise vigorous. 532 Balsam Poplar Populus balsamifera Native Medium Poor On-site Retain ieback and history of branch failure, extensive epicormic, spots on leaves, some peeling bark, some sunken bark areas indicative of decay. 533 Norway Spruce Picea abies Non-native Medium Fair On-site Retain Some history of branch failure, crown thinning, sparse sections, some dieback, unbalanced crown. 534 Norway Spruce Picea abies Non-native Medium Poor On-site Retain Reduced crown due to competition with other species. 535 Balsam Poplar Populus balsamifera Native High Poor On-site Remove Safety Large open canker with decay/mushroom, peeling bark on root flare, girdled roots, dieback, history of branch failure, leaf spots, unbalanced crown. 536 Linden Tilia cordata Non-native Medium Fair On-site Retain Lean, foliage feeding, slight unbalanced crown, growing adjacent to rip rap and on slope. 537 White Spruce Picea glauca Native Medium Fair On-site Retain Reduced and unbalanced crown, root flare with exposed large roots on east side. 538 Norway Spruce Picea abies Non-native Medium Fair On-site Retain Some dieback, thinning, history of branch failure, but relatively vigorous, exposed roots on west side. 539 Colorado Spruce Picea pungens Non-native High Poor On-site Remove Safety Very reduced crown, lean, growing on slope, competing with adjacent trees, dieback. 540 Colorado Spruce Picea pungens Non-native High Poor On-site Remove Safety Reduced and unbalanced crown, dieback, competing with adjacent trees. 541 Colorado Spruce Picea pungens Non-native High ead On-site Remove Safety 542 White Birch Betula papyrifera Native Medium Fair On-site Retain Codominant stems with included bark, some dieback and defoliation, history of branch failure, large calloused split, some staining. 543 Ginkgo Ginkgo biloba Non-native Low Good On-site Remove Old wound on main stem healed, healthy crown. 544 Colorado Spruce Picea pungens Non-native High Very Poor On-site Remove Safety Crown extremely sparse, almost bare. 545 White Birch Betula papyrifera Native Medium Fair On-site Retain Codominant stems, large exposed roots, unbalanced crown, some dieback and defoliation. 546 Colorado Spruce Picea pungens Non-native High ead On-site Remove Safety Strong lean. 547 White Mulberry Morus alba Non-native High Poor On-site Remove Safety Large callousing wounds with decay, staining in multiple areas, dieback, spots on leaves. 548 European Larch Larix decidua Non-native Medium Poor On-site Retain ieback and thinning throughout. Page 2 of 14

10 105 Avondale Court and 143 Bluewater Place, Burlington - Tree Inventory Appendix I: Tree Inventory ata Tree Number Common Name Scientific Name Native/ Nonnative BH (cm) Stem Count Crown Radius (m) Potential for Structural Failure Overall Condition Location 549 American Beech Fagus grandifolia Native Medium Poor On-site Retain Action Rationale for Removal Comments Unbalanced crown, some anthracnose on leaves, cavity with carpenter ants and frass. 550 American Beech Fagus grandifolia Native Medium Poor On-site Retain Small cavity with decay, desiccating leaves, deadwood. 551 White Birch Betula papyrifera Native Low Good On-site Retain Codominant stems with included bark, minimal dieback, otherwise vigorous. 552 Eastern Cottonwood Populus deltoides Native Medium Fair On-site Retain One sided crown toward water, growing adjacent to concrete retaining wall. 553 Eastern Cottonwood Populus deltoides Native Low Good On-site Retain Relatively full crown, solid stem. 554 Eastern Cottonwood Populus deltoides Native Low Good On-site Retain Relatively full, vigorous crown, growing close to fence. 555 Manitoba Maple Acer negundo Native High Poor On-site Remove Safety Growing around fence, crown growing on 45 degree angle down towards water. 556 White Cedar Thuja occidentalis Native Medium Fair On-site Retain Crown dieback, one sided crown. 557 Norway Spruce Picea abies Non-native Medium Fair On-site Retain Slight one sided crown, some dieback. 558 Norway Spruce Picea abies Non-native Low Fair On-site Retain Slight one sided crown, some dieback. 559 American Basswood Tilia americana Native Medium Fair On-site Remove 560 Redbud Cercis canadensis Native Low Good On-site Remove 561 European Beech Fagus sylvatica Non-native Low Good On-site Remove 562 European Beech Fagus sylvatica Non-native Low Good On-site Remove 563 Norway Maple Acer platanoides Non-native Medium Fair On-site Remove 564 Norway Maple Acer platanoides Non-native Low Good On-site Remove 565 White Pine Pinus strobus Native Medium Fair On-site Remove 566 English Yew Taxus baccata Non-native Medium Poor On-site Remove 567 Sugar Maple Acer saccharum Native Low Good On-site Remove 568 Eastern Hemlock Tsuga canadensis Native Low Good On-site Remove 569 English Yew Taxus baccata Non-native Medium Poor On-site Remove 570 Norway Maple Acer platanoides Non-native Low Good On-site Remove 571 American Basswood Tilia americana Native Medium Fair On-site Remove 572 Eastern Hemlock Tsuga canadensis Native Low Good On-site Remove Woodpecker damage, some insect feeding. Growing on 10 degree angle toward house, slight one sided crown, otherwise good condition. Full crown, could benefit from light pruning. Full, vigorous crown, growing on slope. Full crown, included bark with minimal staining, exposed root flare, could benefit from scaffold pruning. Slight unbalanced crown due to adjacent tree, growing on slope, solid stem. History of branch failure, some scaffold dieback, main stem relatively solid. One sided crown, crown dieback. Full crown, minimal staining on root flare. Competing with larger adjacent trees, otherwise healthy. Growing on slight angle, crown dieback, some squirrel damage. Relatively full crown, growing on slope. Minimal woodpecker damage, epicormic growth, some crown dieback. Slightly stunted crown due to adjacent tree, otherwise healthy. Page 3 of 14

11 105 Avondale Court and 143 Bluewater Place, Burlington - Tree Inventory Appendix I: Tree Inventory ata Tree Number Common Name Scientific Name Native/ Nonnative BH (cm) Stem Count Crown Radius (m) Potential for Structural Failure Overall Condition Location Action 573 Red Oak Quercus rubra Native Low Good On-site Remove 574 Scots Pine Pinus sylvestris Non-native High ead On-site Remove 575 White Cedar Thuja occidentalis Native Medium Poor On-site Remove 576 Austrian Pine Pinus nigra Non-native High Poor On-site Remove 577 Austrian Pine Pinus nigra Non-native High Poor On-site Remove 578 Red Maple Acer rubrum Native High Poor On-site Remove 579 Austrian Pine Pinus nigra Non-native Medium Fair On-site Remove 580 Horse Chestnut Aesculus hippocastanum Non-native Low Good On-site Remove Rationale for Removal Comments Large, mature tree in good condition, old prune cuts compartmentalizing. Snag on slope adjacent to house. Squirrel damage, crown snapped off, some crown dieback. Relatively extensive crown dieback, stress cracks on main stem, English ivy up main stem. Crown/scaffold dieback, some stress cracks on main stem. Codominant stems, wounds on main stems with evidence of rot, staining, crown still relatively full and vigorous. Some crown dieback, main stem relatively solid. Full, vigorous crown, competing with adjacent tree slightly. 581 Honey Locust Gleditsia triacanthos var. inermis Non-native Medium Fair On-site Remove Some dieback in lower scaffold branches, could benefit from light pruning. 582 White Pine Pinus strobus Native Medium Fair On-site Remove 583 White Cedar Thuja occidentalis Native Medium Fair On-site Remove 584 White Cedar Thuja occidentalis Native Low Good On-site Remove 585 White Spruce Picea glauca Native High Poor On-site Remove 586 White Spruce Picea glauca Native Medium Fair On-site Remove 587 English Yew Taxus baccata Non-native Low Good On-site Retain Minimal dieback, slightly unbalanced crown due to adjacent tree. One stem in poor condition, some crown dieback and bark loss. Minimal dieback. Extensive crown dieback, one sided crown. One sided crown due to adjacent tree, some crown dieback. Along property boundary in hedge of yew. 588 Norway Maple Acer platanoides Non-native Low Fair On-site Retain On property boundary, minimal dieback. 589 White Spruce Picea glauca Native Medium Fair On-site Retain Minimal dieback, competing with adjacent trees. 590 English Yew Taxus baccata Non-native Low Good On-site Retain Minimal dieback due to light competition. 591 White Spruce Picea glauca Native High Very Poor On-site Remove Safety Minimal crown remaining. 592 English Yew Taxus baccata Non-native Low Good On-site Retain On property boundary, minimal dieback. 593 English Yew Taxus baccata Non-native Low Fair On-site Retain Crown dieback due to competition, close to property boundary. 594 English Yew Taxus baccata Non-native Low Excellent On-site Remove 595 Norway Maple Acer platanoides Non-native Medium Fair On-site Remove 596 Austrian Pine Pinus nigra Non-native Medium Fair On-site Remove Full, vigorous, growing adjacent to house. Some included bark in upper scaffold, full vigorous crown, some evidence of rot in small prune cuts. Narrow crown due to adjacent trees, some crown dieback. Page 4 of 14

12 105 Avondale Court and 143 Bluewater Place, Burlington - Tree Inventory Appendix I: Tree Inventory ata Tree Number Common Name Scientific Name Native/ Nonnative BH (cm) Stem Count Crown Radius (m) Potential for Structural Failure Overall Condition Location Action 597 Austrian Pine Pinus nigra Non-native Medium Fair On-site Remove 598 Austrian Pine Pinus nigra Non-native Medium Fair On-site Remove 599 Ginkgo Ginkgo biloba Non-native Low Good On-site Remove 600 Sycamore Platanus occidentalis Native Medium Fair On-site Remove 601 White Mulberry Morus alba Non-native Low Good On-site Remove 602 White Mulberry Morus alba Non-native Low Fair On-site Remove 603 Scots Pine Pinus sylvestris Non-native Medium Poor On-site Remove 604 White Spruce Picea glauca Native Medium Fair On-site Remove 605 White Spruce Picea glauca Native Medium Fair On-site Remove 606 White Spruce Picea glauca Native Low Good On-site Remove 607 English Yew Taxus baccata Non-native Low Good On-site Remove 608 White Spruce Picea glauca Native Medium Fair On-site Remove 609 White Spruce Picea glauca Native Medium Fair On-site Remove 610 Scots Pine Pinus sylvestris Non-native Medium Fair On-site Remove 611 Colorado Spruce Picea pungens Non-native Medium Fair On-site Remove 612 Scots Pine Pinus sylvestris Non-native Medium Fair On-site Remove 613 Colorado Spruce Picea pungens Non-native Medium Fair On-site Remove 614 Colorado Spruce Picea pungens Non-native Medium Fair On-site Remove 615 Colorado Spruce Picea pungens Non-native Medium Fair On-site Remove 616 Norway Spruce Picea abies Non-native Medium Fair On-site Remove Rationale for Removal Comments Insect feeding on main stem, some scaffold dieback. Unbalanced crown due to adjacent trees, some lower scaffold dieback. Slightly one sided crown due to adjacent tree, otherwise healthy. Stress crack up main stem with some compartmentalization, full crown. Unbalanced but full crown, some staining in lower branch union. One sided crown with lean over Lakeshore Rd, remaining crown full, minimal staining in included bark branch union. Sparse, narrow crown, competing with adjacent trees. Some crown dieback, competing with adjacent mulberry. One sided crown, minimal dieback. Relatively solid stem, slightly unbalanced due to adjacent tree, otherwise good condition. Minimal dieback, growing beneath spruce tree. Upper crown sparse, some crown dieback, competing with adjacent trees. Some small limb dieback, crown dieback, stem still relatively solid. Sparse, unbalanced crown, sapsucker feeding, competing with adjacent trees. Large tree with long drooping branches, main stem relatively solid, close to house. One sided crown with lean over road, woodpecker damage, old prune cuts not compartmentalized. Tall, over mature, stem relatively solid, some crown thinning. Tall, over mature, small girdling root. Tall, over mature, slightly unbalanced crown, stem relatively solid. Large, widespread crown, stem relatively solid, some crown thinning. 617 Honey Locust Gleditsia triacanthos var. inermis Non-native Low Good On-site Remove Slightly unbalanced crown, minimal dieback, otherwise relatively solid. 618 Honey Locust Gleditsia triacanthos var. inermis Non-native Low Good On-site Remove Widespread crown, minimal dieback, stem relatively solid. 619 Scots Pine Pinus sylvestris Non-native Medium Fair On-site Remove 620 Colorado Spruce Picea pungens Non-native Low Fair On-site Remove One sided crown, relatively solid stem, full crown, some sapsucker feeding. Some crown dieback, but relatively solid stem. Page 5 of 14

13 105 Avondale Court and 143 Bluewater Place, Burlington - Tree Inventory Appendix I: Tree Inventory ata Tree Number Common Name Scientific Name Native/ Nonnative BH (cm) Stem Count Crown Radius (m) Potential for Structural Failure Overall Condition Location Action 621 Colorado Spruce Picea pungens Non-native Low Fair On-site Remove 622 White Pine Pinus strobus Native Low Good On-site Remove 623 Colorado Spruce Picea pungens Non-native Medium Fair On-site Remove 624 Colorado Spruce Picea pungens Non-native Medium Fair On-site Remove 625 Freeman's Maple Acer X freemanii Native Medium Fair On-site Remove 626 White Cedar Thuja occidentalis Native Low Good On-site Remove Rationale for Removal Comments Slightly unbalanced crown due to competition with adjacent tree, minimal dieback. Large, mature tree leading to failure rating. Solid stem with relatively full crown. Reduced crown due to competition with adjacent trees, heavy seed production, some crown dieback. Heavy seed production, some crown dieback. One large limb with staining, small girdling root, slightly unbalanced crown, some small limb dieback. Hedgerow tree, slightly unbalanced crown, but otherwise good condition. 627 European Larch Larix decidua Non-native High Poor On-site Remove Safety Narrow, one sided crown, limb dieback. 628 European Larch Larix decidua Non-native High Poor On-site Remove Safety Narrow, sparse crown, some staining on main stem. 629 European Larch Larix decidua Non-native High Poor On-site Remove Safety Narrow, sparse crown, no lower growth. 630 Norway Maple Acer platanoides Non-native Medium Fair On-site Remove 631 Serviceberry Species Amelanchier sp. Non-native Medium Fair On-site Remove 632 White Cedar Thuja occidentalis Native Low Good On-site Remove 633 White Cedar Thuja occidentalis Native Low Good On-site Remove 634 White Cedar Thuja occidentalis Native Medium Fair On-site Remove 635 Sugar Maple Acer saccharum Native Medium Fair On-site Remove 636 Freeman's Maple Acer X freemanii Native Medium Fair On-site Remove 637 Sugar Maple Acer saccharum Native Medium Fair On-site Remove 638 Sugar Maple Acer saccharum Native Medium Fair On-site Remove 639 White Spruce Picea glauca Native Medium Fair On-site Remove 640 White Cedar Thuja occidentalis Native Medium Poor On-site Remove 641 Norway Spruce Picea abies Non-native Medium Fair On-site Remove 642 Norway Spruce Picea abies Non-native Medium Poor On-site Remove 643 White Pine Pinus strobus Native Low Good On-site Remove 644 White Pine Pinus strobus Native High Poor On-site Remove Large, widespread crown, growing around wires, some crown dieback, old prune cut healing. Some crown dieback, a few stems with frost cracks and insect feeding. Full crown, minimal dieback. Minimal yellowing, full crown. One sided crown, some crown dieback, growing on 5 degree angle. Some staining on root flare, minimal dieback, scaffold limb could be pruned, slightly unbalanced crown. Some woodpecker damage, crown relatively full, slightly unbalanced crown as there used to be an adjacent tree. Slightly unbalanced crown due to adjacent tree, minimal dieback, relatively solid stem. Slightly unbalanced crown due to adjacent tree, staining under one scaffold branch, relatively healthy crown. Heavy seed production, lower limb dieback. Sparse, narrow crown. Unbalanced crown, somewhat sparse. One sided crown, sparse, missing top. Slightly unbalanced crown due to adjacent tree, otherwise relatively healthy. Previous branch failures, one sided crown, dieback. Page 6 of 14

14 105 Avondale Court and 143 Bluewater Place, Burlington - Tree Inventory Appendix I: Tree Inventory ata Tree Number Common Name Scientific Name Native/ Nonnative BH (cm) Stem Count Crown Radius (m) Potential for Structural Failure Overall Condition Location 645 English Yew Taxus baccata Non-native Medium Fair On-site Retain Action Rationale for Removal Comments Failed branches from pine on top of crown, small stress cracks with staining. 646 Colorado Spruce Picea pungens Non-native High Poor On-site Remove 647 Colorado Spruce Picea pungens Non-native High Very Poor On-site Remove Some staining on root flare, sparse, narrow crown. Sparse crown, lower limb dieback, heavy seed production. 648 Colorado Spruce Picea pungens Non-native High Poor On-site Remove Safety Sparse crown, dieback, yellowing. 649 Colorado Spruce Picea pungens Non-native High Poor On-site Remove Safety Unbalanced crown due to adjacent trees, crown dieback, stress cracks on main stem, evidence of insect feeding. 650 Colorado Spruce Picea pungens Non-native High Poor On-site Remove Safety Narrow, sparse crown, dieback. 651 English Yew Taxus baccata Non-native Low Good On-site Retain Growing under adjacent spruce trees; however, relatively healthy. 652 Colorado Spruce Picea pungens Non-native Medium Fair On-site Remove 653 Colorado Spruce Picea pungens Non-native Medium Fair On-site Remove 654 Colorado Spruce Picea pungens Non-native Medium Fair On-site Remove 655 Colorado Spruce Picea pungens Non-native Medium Fair On-site Retain Slightly narrow crown due to adjacent trees, minimal dieback, relatively solid stem. Some crown dieback, unbalanced crown due to adjacent tree. Light pruning in lower scaffold, stem relatively solid, some crown dieback. One sided crown, crown dieback, lower limb dieback. 656 Colorado Spruce Picea pungens Non-native High Poor On-site Remove Safety Extensive dieback. 657 Colorado Spruce Picea pungens Non-native Medium Fair On-site Retain One sided crown due to adjacent trees, some crown dieback. 658 Colorado Spruce Picea pungens Non-native High Poor On-site Remove Safety Relatively extensive dieback, evidence of woodpecker damage. 659 Colorado Spruce Picea pungens Non-native High Poor On-site Remove Relatively extensive dieback, evidence of insect feeding. 660 Colorado Spruce Picea pungens Non-native High Poor On-site Remove Safety Relatively extensive dieback, girdling root. 661 White Mulberry Morus alba Non-native Medium Fair On-site Retain Poor reception, crown growing around wires, slight lean, one sided crown. 662 Colorado Spruce Picea pungens Non-native High Poor On-site Remove Safety Extensive dieback. 663 Colorado Spruce Picea pungens Non-native High Very Poor On-site Remove Safety Extensive dieback, crown draped in grape. 664 Colorado Spruce Picea pungens Non-native High Very Poor On-site Remove Safety Extensive dieback, draped in grape. 665 Colorado Spruce Picea pungens Non-native High Very Poor On-site Remove Safety Very little crown remaining, almost dead. 666 Colorado Spruce Picea pungens Non-native High Very Poor On-site Remove 667 Colorado Spruce Picea pungens Non-native High Poor On-site Remove Almost dead. Almost dead, draped in grape. 668 Colorado Spruce Picea pungens Non-native High Poor On-site Remove Safety Extensive dieback, draped in grape. Page 7 of 14

15 105 Avondale Court and 143 Bluewater Place, Burlington - Tree Inventory Appendix I: Tree Inventory ata Tree Number Common Name Scientific Name Native/ Nonnative BH (cm) Stem Count Crown Radius (m) Potential for Structural Failure Overall Condition Location Action 669 Norway Spruce Picea abies Non-native Medium Fair On-site Remove 670 Colorado Spruce Picea pungens Non-native Medium Fair On-site Retain Rationale for Removal Comments Some stress cracks on main stem, some dieback in lower scaffold. raped in grape, slightly unbalanced crown due to adjacent tree, some crown dieback. 671 European Beech Fagus sylvatica Non-native Low Good On-site Remove 672 English Yew Taxus baccata Non-native Low Good On-site Retain Full, vigorous crown, small girdling root, main stem relatively solid. Along fence under spruce trees. 673 Austrian Pine Pinus nigra Non-native High Very Poor On-site Remove 674 Colorado Spruce Picea pungens Non-native Medium Poor On-site Remove 675 Austrian Pine Pinus nigra Non-native High Very Poor On-site Remove 676 Colorado Spruce Picea pungens Non-native Medium Poor On-site Remove 677 Colorado Spruce Picea pungens Non-native Medium Poor On-site Remove 678 Black Cherry Prunus serotina Native Low Good On-site Remove 679 Colorado Spruce Picea pungens Non-native Medium Poor On-site Remove 680 Colorado Spruce Picea pungens Non-native Medium Fair On-site Remove 681 Norway Maple Acer platanoides Non-native Medium Fair On-site Remove 682 Norway Maple Acer platanoides Non-native Medium Fair On-site Remove 683 English Yew Taxus baccata Non-native Low Good On-site Remove 684 White Pine Pinus strobus Native Medium Fair On-site Remove 685 White Pine Pinus strobus Native Medium Fair On-site Remove 686 White Pine Pinus strobus Native Medium Fair On-site Remove 687 White Pine Pinus strobus Native Medium Fair On-site Remove 688 White Pine Pinus strobus Native Medium Fair On-site Remove 689 Norway Maple Acer platanoides Non-native Medium Fair On-site Remove 690 Norway Spruce Picea abies Non-native Medium Fair On-site Retain Large limb dieback, crown dieback. One sided crown, some crown dieback. Extensive dieback, woodpecker damage. Lower limb dieback, crown dieback, main stem still relatively solid. Limb and crown dieback, main stem still relatively solid. Slightly narrowed crown due to adjacent trees, otherwise healthy. Sparse, narrow crown, main stem relatively solid. Growing on slight lean, one sided crown, some crown dieback. Main stem declining (on verge of poor condition), with small area of staining, one large scaffold branch in poor condition, tar spot, full crown. Codominant branches with some staining in union, crown growing around wires, minimal dieback. Growing beneath maples, otherwise relatively healthy. Narrow crown limited to top due to adjacent tree, some woodpecker damage. Some yellowing in needles, main stem relatively solid, some fill/yard waste higher on root flare. One sided crown with some dieback. One sided crown due to adjacent trees, main stem relatively solid. One sided crown due to adjacent tree, some previous branch failure, some crown dieback. Relatively solid stem, some crown dieback, history of branch failure. Main stem growing against wires, some limb dieback. 691 warf Lilac Syringa pubescens Non-native Low Good On-site Remove 692 Red Maple Acer rubrum Native Medium Fair On-site Remove Manicured tree in garden, full crown. Some stress cracks on root flare, included bark in scaffold branches. Page 8 of 14

16 105 Avondale Court and 143 Bluewater Place, Burlington - Tree Inventory Appendix I: Tree Inventory ata Tree Number Common Name Scientific Name Native/ Nonnative BH (cm) Stem Count Crown Radius (m) Potential for Structural Failure Overall Condition Location Action 693 ouglas Fir Pseudotsuga menziesii Non-native Medium Fair On-site Remove 694 ouglas Fir Pseudotsuga menziesii Non-native Medium Fair On-site Remove Rationale for Removal Comments Insect feeding on main stem, some crown dieback. Some crown dieback, stress crack on main stem with sap and some compartmentalization. 695 Yellow Cedar Chamaecyparis nootkatensis Non-native Low Fair On-site Remove Competing with adjacent tree, minimal dieback. 696 Serviceberry Species Amelanchier sp. Non-native Low Fair On-site Retain Minimal dieback, crowded out by adjacent trees. 697 Lilac Syringa vulgaris Non-native Medium Poor On-site Retain Over mature, some stems dead and some with rot, growing against fence. 698 Norway Maple Acer platanoides Non-native Low Fair On-site Retain Tar spot, growing on slope. 699 Staghorn Sumac Rhus hirta Native High Very Poor On-site Remove Safety Almost dead, bark cracks and uprooting, minimal crown. 701 English Yew Taxus baccata Non-native Medium Fair On-site Retain Unbalanced crown, poor structure, shrub. 702 Colorado Spruce Picea pungens Non-native Medium Fair On-site Retain Mostly one sided crown, some dieback. 703 Yellow Cedar Chamaecyparis nootkatensis Non-native Low Fair On-site Retain Somewhat sparse, overall fair condition. 704 Horse Chestnut Aesculus hippocastanum Non-native Medium Fair On-site Retain Some dieback, epicormic shoots, some sunken areas. 705 Norway Spruce Picea abies Non-native High Poor On-site Remove Safety Very reduced crown, dieback throughout and yellowing. 706 Norway Spruce Picea abies Non-native High Poor On-site Remove Safety Reduced and unbalanced crown. 707 Norway Spruce Picea abies Non-native Medium Poor On-site Retain Mostly one sided crown and thinning. 708 Norway Spruce Picea abies Non-native Medium Fair On-site Retain Some crown thinning and dieback, unbalanced crown. 709 Red Maple Acer rubrum Native Medium Fair On-site Retain Girdled and exposed roots, some sunken areas. 710 Norway Spruce Picea abies Non-native Medium Fair On-site Retain Unbalanced crown, some dieback and thinning. 711 Norway Spruce Picea abies Non-native Medium Fair On-site Retain Slight unbalanced crown, prioritized upward growth, slightly reduced crown. 712 Norway Spruce Picea abies Non-native Medium Fair On-site Retain Unbalanced and heavy crown, dieback and thinning, overarching branches. 713 Norway Spruce Picea abies Non-native Low Fair On-site Retain Sparse crown and some dieback, slight unbalanced crown. 714 Norway Spruce Picea abies Non-native Medium Fair On-site Retain One sided crown, some dieback. 715 European Spindle Tree Euonymus europaeus Non-native Medium Fair On-site Retain Unbalanced crown, growing on slope, lean, roots girdled with adjacent Juglans X, some dieback. 716 European Beech Fagus sylvatica Non-native Medium Fair On-site Remove 717 European Beech Fagus sylvatica Non-native Medium Fair On-site Remove Unbalanced crown, some dieback. One sided crown, some dieback. Page 9 of 14

17 105 Avondale Court and 143 Bluewater Place, Burlington - Tree Inventory Appendix I: Tree Inventory ata Tree Number Common Name Scientific Name Native/ Nonnative BH (cm) Stem Count Crown Radius (m) Potential for Structural Failure Overall Condition Location Action 718 White Pine Pinus strobus Native High ead On-site Remove 719 White Elm Ulmus americana Native High Very Poor On-site Remove 720 Norway Maple Acer platanoides Non-native Low Fair On-site Remove 721 Norway Maple Acer platanoides Non-native Medium Fair On-site Remove 722 White Pine Pinus strobus Native High Poor On-site Remove 723 European Beech Fagus sylvatica Non-native Medium Fair On-site Remove 724 Norway Maple Acer platanoides Non-native Low Fair On-site Remove 725 American Basswood Tilia americana Native High Poor On-site Remove 726 Norway Maple Acer platanoides Non-native Medium Fair On-site Remove 727 Norway Maple Acer platanoides Non-native High ead On-site Remove 728 Norway Maple Acer platanoides Non-native Medium Fair On-site Remove 729 Eastern Hemlock Tsuga canadensis Native Low Fair On-site Remove 730 Yellow Birch Betula alleghaniensis Native High Poor On-site Remove 731 Eastern Hemlock Tsuga canadensis Native Low Fair On-site Remove 732 Eastern Hemlock Tsuga canadensis Native Low Fair On-site Remove 733 Eastern Hemlock Tsuga canadensis Native Low Fair On-site Remove 734 Norway Spruce Picea abies Non-native Medium Fair On-site Remove 735 Norway Spruce Picea abies Non-native Medium Fair On-site Retain Rationale for Removal Comments Snag, no top. Mostly dead, lean, growing on slope, one stem less than 10cm dbh. Some "S" bend in stem, growing on slope, tar spot. One sided crown, some sunken areas, 1 stem with frass, 2 stems joined at root flare. Bark cracks, large amount of carpenter ant frass/galleries in stem, sunken areas, dieback, yellowing, poor structure. Unbalanced crown, some dieback, some damage to root flare, bark cracks, some decay in knot hole. Growing on slope, unbalanced crown, tar spot. Carpenter ant frass and galleries at root flare opening, bark cracks, dieback, growing out of slope. Growing on slope, leader leaning, poor structure, tar spot. Scaffolds remain. Poor structure, phototrophic lean, exposed roots, growing on slope. Unbalanced crown, growing on slope. Large codominant branches with included bark, frass at base, old branches with decay, poor structure, some dieback, large stem with decay and cavity. Sparse crown due to competing trees. Unbalanced crown, growing on slope, exposed roots. Unbalanced crown, growing into adjacent yellow birch. Reduced and unbalanced crown. Reduced and unbalanced crown. 736 Norway Spruce Picea abies Non-native High Poor On-site Remove Safety Very reduced crown, unbalanced crown, growing on slope. 737 Norway Spruce Picea abies Non-native High Very Poor On-site Remove Safety One sided crown, minimal crown left. 738 Norway Spruce Picea abies Non-native Medium Fair On-site Remove 739 Norway Spruce Picea abies Non-native High Poor On-site Remove 740 Norway Spruce Picea abies Non-native High Poor On-site Remove 741 Norway Spruce Picea abies Non-native High ead On-site Remove Lean, large codominant branches, heavy load, root flare with response growth, growing on slope. One sided, top dead due to competing trees, heavily pruned for wires. One sided, heavily pruned for wires, upper crown in heavy decline. Peeling bark. Page 10 of 14

18 105 Avondale Court and 143 Bluewater Place, Burlington - Tree Inventory Appendix I: Tree Inventory ata Tree Number Common Name Scientific Name Native/ Nonnative BH (cm) Stem Count Crown Radius (m) Potential for Structural Failure Overall Condition Location Action 742 White Pine Pinus strobus Native Medium Fair On-site Remove 743 Norway Spruce Picea abies Non-native High Poor On-site Remove 744 Norway Spruce Picea abies Non-native Medium Fair On-site Remove 745 Norway Spruce Picea abies Non-native Medium Fair On-site Remove 746 Norway Spruce Picea abies Non-native High Poor On-site Remove 747 Norway Spruce Picea abies Non-native Medium Fair On-site Remove 748 Norway Spruce Picea abies Non-native Medium Fair On-site Remove 749 Norway Spruce Picea abies Non-native Medium Fair On-site Remove 750 Norway Spruce Picea abies Non-native Medium Fair On-site Remove 751 English Yew Taxus baccata Non-native Low Fair On-site Remove 752 English Yew Taxus baccata Non-native Low Fair On-site Retain Rationale for Removal Comments One sided crown, growing on slope, some dieback. Very reduced crown, unbalanced crown, some bulges on stem near base. One sided crown, some dieback and yellowing, garden groundcover surrounding root zone. Some thinning in lower crown, some yellowing, vines around base and stem. Very reduced crown, thinning, and dieback. Slight unbalanced crown, thinning, dieback, vines around base and slightly up stem. Unbalanced crown, small girdled roots, some dieback. Large roots extending down slope, unbalanced crown, some thinning and dieback. Large roots extending down slope, some thinning and yellowing. On property line, no leader, some thinning. Just inside property line, poor form. 753 English Yew Taxus baccata Non-native Medium Fair On-site Retain Reduced crown due to tight spacing with other yews. 754 English Yew Taxus baccata Non-native Medium Fair On-site Retain Unbalanced crown, reduced crown due to tight spacing of trees. 755 White Spruce Picea glauca Native Medium Fair On-site Retain Unbalanced crown, some dieback, and yellowing. 756 European Larch Larix decidua Non-native Medium Fair On-site Retain Sparse crown, some dieback, elevated crown. 757 White Mulberry Morus alba Non-native Medium Fair On-site Remove Unbalanced crown, poorly pruned, stem with curve. 758 White Spruce Picea glauca Native High Poor On-site Remove Safety Very reduced crown, sparse throughout due to competing trees. 759 White Spruce Picea glauca Native Medium Fair On-site Retain Extreme one sided crown with heavy load, some dieback, poor shape but in fair condition. 760 White Spruce Picea glauca Native Medium Fair On-site Retain One sided crown, otherwise vigorous. 761 White Spruce Picea glauca Native High Poor On-site Remove Safety Reduced and unbalanced crown. 762 White Spruce Picea glauca Native Medium Fair On-site Retain Unbalanced crown, otherwise vigorous. 763 White Spruce Picea glauca Native High Poor On-site Remove Safety Very reduced crown and thinning. 764 White Spruce Picea glauca Native Medium Fair On-site Retain Reduced crown, but relatively full crown for size. 765 White Spruce Picea glauca Native Medium Fair On-site Remove Unbalanced crown, some thinning, and dieback. Page 11 of 14

19 105 Avondale Court and 143 Bluewater Place, Burlington - Tree Inventory Appendix I: Tree Inventory ata Tree Number Common Name Scientific Name Native/ Nonnative BH (cm) Stem Count Crown Radius (m) Potential for Structural Failure Overall Condition Location 766 White Spruce Picea glauca Native Medium Poor On-site Retain Action Rationale for Removal Comments Unbalanced crown, thinning, and dieback. 767 White Spruce Picea glauca Native Medium Poor On-site Retain Reduced crown, some thinning. 768 White Spruce Picea glauca Native Medium Fair On-site Retain One sided and reduced crown, grape in crown. 769 White Cedar Thuja occidentalis Native Medium Fair On-site Retain Twisted codominant branches with included bark, some yellowing, thinning. 770 English Yew Taxus baccata Non-native Low Fair On-site Retain Grape in crown, some sparseness. 771 Austrian Pine Pinus nigra Non-native Medium Fair On-site Remove 772 Austrian Pine Pinus nigra Non-native Medium Fair On-site Remove 773 Austrian Pine Pinus nigra Non-native High Poor On-site Remove 774 Red Maple Acer rubrum Native Low Fair On-site Retain Unbalanced and reduced crown, some dieback, adjacent to house. One sided crown, some thinning and dieback. Large codominant branches with included bark, vine growing up stem, dieback and yellowing throughout. Codominant branches with included bark, girdled roots, poor form, minimal dieback, gypsy moth egg mass. 775 Red Oak Quercus rubra Native Low Good On-site Retain Minimal dieback, gypsy moth feeding (shot holes) in foliage, otherwise vigorous. 776 Chinese Chestnut Castanea mollissima Non-native Medium Poor On-site Retain Extensive damage to root flare, bark cracks, some dieback, epicormic shoots. 777 Chinese Chestnut Castanea mollissima Non-native Low Fair On-site Retain Some staining at root flare, small decayed branch, some dieback. 778 Yellow Birch Betula alleghaniensis Native Medium Fair On-site Retain Burlington Horticultural Society Honour Roll Plaque posted on tree, large tree with some evidence of decay and history of branch failure, some dieback, located on other side of fence, but on the property. 779 Scots Pine Pinus sylvestris Non-native Medium Fair On-site Remove 780 ouglas Fir Pseudotsuga menziesii Non-native Medium Fair On-site Remove 781 Norway Spruce Picea abies Non-native Low Fair On-site Remove 782 Scots Pine Pinus sylvestris Non-native High Very Poor On-site Remove 783 Norway Spruce Picea abies Non-native Medium Fair On-site Remove 784 White Mulberry Morus alba Non-native Medium Fair On-site Retain Poor form, some dieback, thinning, sapsucker feeding. Mostly one sided with some dieback. Some gaps between branches, otherwise vigorous. Tree mostly dead. Unbalanced crown, some wilting and dieback, some gaps between branches. Unbalanced crown, codominant stems with included bark and some staining, some dieback. 785 White Cedar Thuja occidentalis Native Low Fair On-site Retain Adjacent lilac growing into crown, resulting in some gaps in crown. 786 Staghorn Sumac Rhus hirta Native High Poor On-site Remove Safety Bark cracks, large open wound with poor compartmentalization and decay, dieback, and dead branches. A Black Willow Salix nigra Native High Poor Off-site Retain Mostly full crown, many roots exposed with damage, 45 degree lean, bottom of stem at root flare exposed, epicormic shoots, frass, carpenter ants at root flare. B Butternut Hybrid Juglans X Non-native High Poor On-site Remove Safety Unbalanced crown, top dead, lateral branches with foliage, large wound with decay, peeling bark, off-site. C Butternut Hybrid Juglans X Non-native Low Fair Off-site Retain Growing under lines, many small open cankers cankers with some sooty cankers. Cankers indicate tree is in decline, even though currently contains full crown. Page 12 of 14

20 105 Avondale Court and 143 Bluewater Place, Burlington - Tree Inventory Appendix I: Tree Inventory ata Tree Number Common Name Scientific Name Native/ Nonnative BH (cm) Stem Count Crown Radius (m) Potential for Structural Failure Overall Condition Location Butternut Hybrid Juglans X Non-native High Poor Off-site Retain Action Rationale for Removal Comments Large cavity on stem, girdled roots, frass and carpenter ants, dieback and history of branch failure, butternut canker present, calloused split near fork with staining. E Butternut Hybrid Juglans X Non-native High Poor Off-site Retain Carpenter ants, frass, old large prune cuts with decay/staining, butternut canker present, dieback and history of branch failure, growing under lines. F Butternut Species * Juglans sp. Native High Poor On-site Remove Safety G Norway Maple Acer platanoides Non-native Low Fair Off-site Retain Unbalanced crown, dieback, history of branch failure, phototrophic lean. Not able to positively confirm whether tree is pure or hybrid butternut as lowest portion of crown too high to obtain leaf/twig samples. Likely Butternut hybrid. Phototrophic lean, tar spot, unbalanced crown. H Colorado Spruce Picea pungens Non-native Low Good Off-site Retain Pruned, on private property. I Sugar Maple Acer saccharum Native Medium Fair Off-site Retain Stem relatively solid, elevated pruning for wires, some crown dieback. J Black Walnut Juglans nigra Native Medium Fair Off-site Retain Growing around wires, slight unbalanced crown with some dieback. K Black Walnut Juglans nigra Native Medium Fair Off-site Retain Growing around wires, some crown thinning. L Freeman's Maple Acer X freemanii Native Medium Fair Off-site Retain Growing around wires, codominant branches with included bark, wide spread crown, some dieback. M Japanese Maple Acer palmatum Non-native Low Good Off-site Retain Growing around wires, full wide crown, behind fence. N White Spruce Picea glauca Native Medium Poor On-site Remove O White Spruce Picea glauca Native Medium Fair On-site Remove P White Spruce Picea glauca Native Medium Fair On-site Remove Q White Spruce Picea glauca Native Medium Fair On-site Remove R Ginkgo Ginkgo biloba Non-native Medium Fair On-site Retain Reduced crown due to adjacent trees, sparse crown, behind fence. Some crown dieback, stem relatively solid, behind fence. Some crown thinning, stem relatively solid, behind fence. Heavy seed production, some crown thinning, stem relatively solid. Large codominant stems fused together at breast height, calloused wounds, some canker on scaffold branches, some dieback and reduced leaf size. S Red Maple Acer rubrum Native Medium Fair Off-site Retain In private garden, some dieback, wilting, anthracnose spots, some bark cracks. T Pear Pyrus communis Non-native Medium Fair Off-site Retain Pear scab/rust on leaves, some wilting, vines growing in crown. U Weeping Willow Salix alba var. vitellina Non-native High Poor Off-site Retain Large amount of decay with carpenter ants and frass, dieback and some wilting, epicormic shoots, extensive cankers, large codominant stems with included bark, lean, unbalanced crown. V American Basswood Tilia americana Native Medium Fair Off-site Retain Unbalanced crown, growing through fence, codominant stems with included bark, epicormic shoots, competing with willow, top dead. W Cherry Species Prunus sp. Non-native Medium Fair Off-site Retain Some dieback and defoliation, growing adjacent to fence, calloused bark splits. X Butternut Hybrid Juglans X Non-native Medium Poor On-site Retain Vigorous crown; however, butternut canker present. Y Norway Maple Acer platanoides Non-native Medium Fair Off-site Retain Unbalanced crown, leaning over driveway, history of branch failure, unbalanced crown, tar spot. Z Cherry Species Prunus sp. Non-native High Poor Off-site Retain ieback throughout, unbalanced crown, competing with adjacent Norway maple, blister-like cankers on bark. AA Black Locust Robinia pseudo-acacia Non-native Medium Fair Off-site Retain Off property, some leaf defoliation, crown dieback. Page 13 of 14

21 105 Avondale Court and 143 Bluewater Place, Burlington - Tree Inventory Appendix I: Tree Inventory ata Tree Number Common Name Scientific Name Native/ Nonnative BH (cm) Stem Count Crown Radius (m) Potential for Structural Failure Overall Condition Location BB Trembling Aspen Populus tremuloides Native Medium Fair Off-site Retain Action Rationale for Removal Comments Off property, growing on slope, unbalanced crown, some crown dieback. CC English Yew Taxus baccata Non-native Low Fair Off-site Retain Minimal dieback, just off property. Butternut Species * Juglans sp. Native Medium Fair Off-site Retain Off property, no leaves remaining, appears to have minimal dieback. Not able to positively confirm whether tree is pure or hybrid butternut as lowest portion of crown too high to obtain leaf/twig samples. Likely Butternut hybrid. EE White Mulberry Morus alba Non-native Low Fair Off-site Retain Off property, minimal dieback, competing with adjacent trees. FF Eastern Cottonwood Populus deltoides Native Medium Fair On-site Retain Along break wall, crack on main stem with some compartmentalization. GG Green Ash Fraxinus pennsylvanica Native Medium Fair On-site Retain Growing immediately adjacent to break wall, narrow root flare, crown beneath adjacent tree. HH Eastern Cottonwood Populus deltoides Native Medium Fair On-site Retain Large crack up main stem with some compartmentalization, relatively full crown. II Norway Maple Acer platanoides Non-native Medium Fair Off-site Retain Growing on slope, just outside property line, poor form, unbalanced crown. JJ Black Locust Robinia pseudo-acacia Non-native High Poor Off-site Retain Large amount of decay in root flare, frass, staining, dieback and thinning. KK White Birch Betula papyrifera Native Medium Fair On-site Retain History of branch failure, some dieback and thinning. LL Freeman's Maple Acer X freemanii Native Medium Fair On-site Retain Grape in upper stem, some history of branch failure, and some dieback. Polygon 1 White Cedar Thuja occidentalis Native Medium Fair On-site Retain ensely planted hedge of cedars. The diameter of most trees are within the 12-15cm BH range. * As indicated in the report, these are most likely Butternut hybrids. Page 14 of 14

22 Natural Resource Solutions Inc. Appendices APPENIX II City of Burlington Specifications Index for Tree Protection and Preservation (Spec No. SS12A) February 2013

23 CORPORATION OF THE CITY OF BURLINGTON SPECIFICATIONS INEX FOR Tree Protection and Preservation (SPEC NO. SS12A) Contents 1. Scope efinitions Application of Policy General Policy The Minimum Tree Protection Zone (MTPZ) Tree Protection Barriers Tree Removal and Relocation Site Services or Excavations within the Minimum Tree Protection Zone Tree Repair Securities for Non-Compliance... 5

24 Tree Protection and Preservation Specification No.: SS12A 1. Scope February 2013 This specification describes the measures required to protect trees not designated for removal for all works within the City of Burlington s road right-of-way. 2. efinitions For the purpose of this specification, the following definitions apply: a) Certified Arborist: An arborist certified by the International Society of Arboriculture (ISA) who has a diploma (minimum) in arboriculture or urban forestry. They may be required to provide their ISA Certification number. The arborist must have minimum job experience of at least 6 years in Tree Protection and Mitigation; b) Barrier: A fence placed around a single tree or group of trees to protect them from removal and injury; c) ripline: The location on the ground surface directly beneath the theoretical vertical line from the tips of the outermost branches of the trees. 3. Application of Policy a) Tree protection measures are required for City trees and other trees protected by City Tree by-law as amended and are recommended for all trees which may be impacted by construction activities; b) All trees situated on City property are protected under provisions of the City Tree by-law. Some trees situated on private property are also protected by the City Tree bylaw or as conditions of approvals granted by the City under site plan approval or subdivision agreements; c) Trees protected by the City Tree by-law may not be removed, injured or destroyed in any way without authorization from the City Arborist. Note that the term tree refers to all parts of the tree, including all roots. In certain cases, City Council will be required pursuant to the Tree By-law; d) The specifications set out in this policy shall be the standard specifications for tree protection measures during construction whenever tree protection measures are required by the City and in every instance where construction activities may result in damage to trees; e) Higher standards of tree protection may be imposed where warranted in the opinion of the City Arborist for municipal trees and Project Arborist for private trees with regard to the size, variety, location, and health of the tree and any circumstances surrounding the construction which may pose a particular hazard to the tree; f) Lesser standards of tree protection shall only be permitted on the recommendation of a Certified Arborist (as defined in this policy) and with the written consent of the City Arborist; g) Anyone failing to adhere to the tree protection policies and specifications outlined below will be financially responsible for any resulting damage to trees. 4. General Policy Construction activities near trees may result in injury to the trunk, limbs or roots of trees causing damage or death of the tree. In order to prevent such damage: a) Trees within or adjacent to a construction area must be protected during construction by means of a barrier surrounding the Minimum Tree Protection Zone (MTPZ) as outlined in Sections 5 & 6 of this standard specification; b) Activities which are likely to injure or destroy the tree are not permitted within the MTPZ. Equipment or vehicles shall not be operated, parked, repaired or refueled within the dripline of trees. c) Tree pruning or root cutting of City owned trees is to be done in accordance with Section 8 of this specification. Page 2 February 2013

25 Tree Protection and Preservation Specification No.: SS12A d) No objects may be attached to trees protected by the City Tree by-law without written authorization by the City. Construction material, supplies, or equipment and earth shall not be stockpiled within the dripline of any tree. e) No City tree or tree protected by the City Tree by-law may be removed without the written permission of the City Arborist. f) Exposed roots from excavation must be covered with soil, mulch or burlap and watered within 24 hours of exposure to prevent drying out. 5. The Minimum Tree Protection Zone (MTPZ) The following is a chart showing minimum required distances for determining a Minimum Tree Protection Zone. Some trees and some site conditions may require a larger Minimum Tree Protection Zone at the discretion of the City. Table 1 Minimum Tree Protection Zones NOTES: Trunk iameter (BH) 2 Minimum Tree Protection Zone (MTPZ) istances Required 3 Critical Root Zone (CRZ) istances Required 3&4 < 10 cm 1.8 m 1.8 m cm 2.4 m 4.0 m cm 3.0 m 5.0 m cm 3.6 m 6.0 m cm 4.2 m 7.0 m cm 4.8 m 8.0 m cm 5.4 m 9.0 m cm 6.0 m 10.0 m 1 The roots of a tree can extend from the trunk to approximately 2-3 times the distance of the drip line. 2 iameter at breast height (BH) measurement of tree trunk taken at 1.4 metres above ground. 3 Minimum Tree Protection Zone and Critical Root Zone distances are to be measured from the outside edge of the tree base towards the drip line and may be limited by an existing paved surface, provided the existing paved surface remains intact throughout the construction work and is subject to Section 6 of this specification. 4 Where work is being performed beyond the Minimum Tree Protection Zone but within the Critical Root Zone the works are subject to Section 8 of this specification. 6. Tree Protection Barriers Trees within Minimum Tree Protection Zones shall be protected by means of a tree protection barrier meeting the following specifications: a) The required barrier is a 1.2 metre (4 ft) high orange plastic web snow fencing on 2 x 4 frame. Where orange plastic web snow fencing creates a restriction to sightlines, page wire fencing with reflective tape can be used. b) Tree protection barriers are to be erected prior to the commencement of any construction or grading activities on the site and are to remain in place throughout the entire duration of the project. The barriers shall be maintained erect and in good repair throughout the duration of construction operations with breaks and unsupported sections repaired immediately. Tree protection may be not be removed prior to the completion of construction without written authorization from the City Arborist. c) All supports and bracing used to safely secure the barrier should be located outside the MTPZ. All supports and bracing should minimize damage to roots. d) Where some fill or excavated material must be temporarily located near a MTPZ, a wooden barrier with silt fencing must be used to ensure no material enters the MTPZ. Page 3 February 2013

26 Tree Protection and Preservation Specification No.: SS12A e) No materials or fill may be stored within the MTPZ. f) Equipment or vehicles shall not be operated, parked, repaired, or refueled within the MTPZ. g) No construction activity, grade changes, surface treatment or excavations of any kind is permitted within the MTPZ without written authorization from the City Arborist. h) A laminated Minimum Tree Protection Zone sign (see attached) must be attached to the most visible side of the Tree Protection, where it will be visible by those persons entering the site. Minimum size must be 10 x Tree Removal and Relocation Any requests for removal, cutting, pruning or relocating a tree must be made in writing to the City. If approval is granted for removal of a tree, the contractor will assume all costs involved. In most instances tree replacement or compensation will be required. 8. Site Services or Excavations within the Minimum Tree Protection Zone It is recognized that there are cases where trees are growing overtop existing underground utilities that may require inspection and/or new installation. While the guidelines in this standard specification still apply, in these cases some modification to the Minimum Tree Protection Zone, in addition to pre-construction pruning, may be required where work within or near the MTPZ is approved by the City Arborist. The objective is to avoid severance of anchor roots and or major branches and minimize damage to the tree(s) and to maintain the natural form of the crown. a) Above ground clearance for overhanging branches in the work zone must be anticipated. The contractor is required to have a City approved tree service raise the crown of all branches to provide adequate clearance for construction equipment. The cost of above ground pre-construction pruning is to be borne by the party that requires the work to be completed. b) When excavation is required for inspection (only) of private water and sanitary lateral connections at the property line, are within the limits of the MTPZ and the CRZ and have the potential to damage tree roots, excavation must be completed by a qualified arborist or under an arborist s supervision using a hydro vacuum unit or air powered soil excavation tools in order to preserve the integrity of the tree s roots. When new private water and sanitary lines must be installed, and there is not a suitable location outside of the MTPZ and the CRZ, directional micro tunneling and boring is the preferred option for installation within the MTPZ and CRZ. c) When any site works, are within the limits of the MTPZ and the CRZ and have the potential to damage tree roots, root pruning using a hydro vacuum unit or air powered soil excavation tools is acceptable, provided it is operated by a qualified arborist or under an arborist s supervision, and completed to a depth of 300mm. Roots are to be cut a maximum of 150 mm from the edge of excavation (grading or removals). The limit of excavation, grading or removals is to be minimized to the greatest extent possible and is to include the use of excavation shoring, smaller excavation equipment or rubber tired machines. See etail TP-2 (attached as an appendix) for further information. 9. Tree Repair Trees damaged by construction operations shall be repaired as follows, within five days of the damage: a) Branches 25 mm or greater in diameter that are broken shall be cut back cleanly on the tree side of the break or to within 10 mm of their base, if a substantial portion of the branch is damaged. b) Bark that is damaged shall be neatly trimmed back to the uninjured bark without causing further injury to the tree. c) Root pruning within the Minimum Tree Protection Zone of any tree requires root exploration via supersonic air tool or hydro vacuum unit to first remove the soil and expose the roots. Page 4 February 2013

27 Tree Protection and Preservation Specification No.: SS12A d) Roots under 2 cm in diameter can be pruned using a sharpened tool such as hand pruners or a sharpened spade under the supervision of the Construction Inspector. e) Roots between 2 and 8 cm in diameter can be pruned by the arborist using a sharp tool, such as a handsaw, hand pruner or loppers and under the supervision of the Construction Inspector and the advisement of the Project Arborist. f) All roots over 8 cm in diameter must be assessed by the Project Arborist prior to pruning unless the arborist on-site can confidently assess the effect of the removal of the root as not detrimental to the tree. g) Root pruning within the Critical Root Zone and outside of the MTPZ, typically requires the use of a sharpened garden spade, cutting a line to a depth of about 30 cm by the on-site arborist under the advisement of the Project Arborist if needed. However, the same pruning protocol for the size of roots encountered (in the MTPZ) applies to the roots found within this area. h) The trenches are typically backfilled with the same excavated soil or new topsoil or compost and hoarding should be installed along this trench to project the remaining roots. 10. Securities for Non-Compliance Where a tree has been damaged through non-compliance with the Tree Protection and Preservation Specification, any security provided for tree preservation or replacement may be held by the City for up to three (3) years from the date of the final inspection of the construction project. If the tree dies or needs to be replaced within those three years, the Owner shall pay for replacement planting with nursery stock according to the City of Burlington s Aggregate Caliper Formula. Replacement trees must have a minimum height of 180cm for coniferous trees and 80mm caliper for deciduous replacements. Replacements must be made to the satisfaction of the City Arborist. If the Owner meets their financial obligations and there is no further need to care for the tree, after three (3) years, the City shall return the deposit(s) or the balance of the deposit(s) if the City had to use some of the money for monitoring, preservation or replacement of the tree. If the tree does not recover to the satisfaction of the City Arborist, then the City shall retain the deposit(s) for the continued maintenance, preservation or eventual replacement of the tree. The Owner may be required to post additional securities if, in the opinion of the City Arborist, the saved tree is very damaged and will need on-going monitoring, preservation or replacement that will exceed the cost of the deposit(s) mentioned above. Securities may be released prior to the expiry of the three year period provided the City is satisfied that the tree has not been damaged. Applicants for the early release or reduction of securities shall submit a report from a Certified Arborist certifying that the tree is in a state of vigorous health and has not been injured or destroyed as a result of the construction activities. Page 5 February 2013

28 Tree Protection and Preservation Specification No.: SS12A TREE PROTECTION BARRIER etail TP-1 Tree Protection etail. Trunk iameter (BH) 2 NOTES: Minimum Tree Protection Zone (MTPZ) istances Required 3 Critical Root Zone (CRZ) istances Required 3&4 < 10 cm 1.8 m 1.8 m cm 2.4 m 4.0 m cm 3.0 m 5.0 m cm 3.6 m 6.0 m cm 4.2 m 7.0 m cm 4.8 m 8.0 m cm 5.4 m 9.0 m cm 6.0 m 10.0 m 1 The roots of a tree can extend from the trunk to approximately 2-3 times the distance of the drip line. 2 iameter at breast height (BH) is the measurement of tree trunk taken at 1.4 metres above ground. 3 Minimum Tree Protection Zone and Critical Root Zone distances are to be measured from the outside edge of the tree base towards the drip line and may be limited by an existing paved surface, provided the existing paved surface remains intact throughout the construction work and is subject to Section 6 of this specification. 4 Where work is being performed beyond the Minimum Tree Protection Zone but within the Critical Root Zone the works are subject to Section 8 of this specification. 1. The required barrier is a 1.2 metre (4 ft) high orange plastic web snow fencing on 2 x 4 frame. Where orange plastic web snow fencing creates a restriction to sightlines, page wire fencing with reflective tape can be used. 2. Tree protection barriers are to be erected prior to the commencement of any construction or grading activities on the site and are to remain in place throughout the entire duration of the project. The barriers shall be maintained erect and in good repair throughout the duration of construction operations with breaks and unsupported sections repaired immediately. Tree protection may be not be removed prior to the completion of construction without written authorization from the City Arborist. 3. All supports and bracing used to safely secure the barrier should be located outside the MTPZ. All supports and bracing should minimize damage to roots. 4. Where some fill or excavated material must be temporarily located near a MTPZ, a wooden barrier with silt fencing must be used to ensure no material enters the MTPZ. 5. No materials or fill may be stored within the MTPZ. 6. Equipment or vehicles shall not be operated, parked, repaired, or refueled within the MTPZ. 7. No construction activity, grade changes, surface treatment or excavations of any kind is permitted within the MTPZ without written authorization from the City Arborist. 8. A laminated Minimum Tree Protection Zone sign (See etail TP-3 Minimum Tree Protection Zone Sign) must be attached to the side of the Tree Protection where it will be visible by persons entering the site. Minimum size must be 10 x14. Page 6 February 2013

29 Tree Protection and Preservation Specification No.: SS12A etail TP-2 Root Pruning etail Page 7 February 2013