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HomeMy WebLinkAboutExh.14_Arborist_Report_Offsite_Benefit Greenforest Incorporated C o n s u l t i n g A r b o r i s t 4547 South Lucile Street, Seattle, WA 98118 Tel. 206-723-0656 TO: Jordan Salisbury, VP of Acquisitions & Entitlement Blue Fern Development, LLC 11232 120th Ave NE, Ste. 204 Kirkland, WA 98033 REFERENCE: Tree Canopy Cover Analysis PARCEL NUMBER: 3343300861 DATE: November 11, 2019 PREPARED BY: Favero Greenforest, ISA Certified Arborist # PN -0143A ISA Tree Risk Assessment Qualified ASCA Registered Consulting Arborist® #379 You contacted me and contracted my services as a consulting arborist. My assignment is to inspect and inventory trees at the above referenced site. This inventory establishes the existing canopy cover of the regulated trees. You provided me a topographic survey prepared by Core Design, showing locations of the regulated trees, as well as parcel boundaries and delineation of existing wetlands. I visited the site 11/07/19 and inspected the trees. City of Renton Planning Division recommends I create my own criteria and tree attributes to measure for this assignment, and to elaborate on the collected data, site conditions (soil, slopes, topography etc.), tree conditions, tree species, and general site observations. Except for two apples, all the trees are native species, and are typical for this site. The topography has a SW aspect, mostly sloping toward I-405 from Lake Washington Boulevard SE. Two wetlands are delineated on the north half of the parcel, and there is active water flow across the north parcel boundary from an outflow from beneath the abutting right- of-way. EXHIBIT 14 DocuSign Envelope ID: C2073BA0-CA13-4596-8BE6-FB745ABA8D08 Jordan Salisbury, Blue Fern Development, LLC RE: Tree Canopy Cover Analysis, TPN 3343300861 November 11, 2019 Page 2 of 9 Greenforest Registered Consulting Arborist The subject trees are in varying stages of maturity, and include coniferous and broadleaf evergreens and broadleaf deciduous species. Nearly all the inventoried trees are part of a stand (consisting of 5 or more trees). The majority are significant; 4 are landmark. Each of the inventoried trees currently contributes healthy live canopy cover to the site. I anticipate, for each tree, that this benefit will continue, if not increase for the next 2 decades. Additionally, there are many alders on this site that currently contribute canopy cover, though because of their small trunk size are not included here. Dead trees are excluded from this analysis. In addition to the surveyed trees, I identified 10 additional significant trees and they are included in the attached inventory and annotated survey exhibit (#A-J). The following attributes are detailed in the attached inventory. Tree Category Landmark: A tree with a caliper of thirty inches (30") or greater. Significant: A tree with a caliper of at least six inches (6"), or an alder or cottonwood tree with a caliper of at least eight inches (8"). Tree number as shown on tag in the field, and on attached exhibit. DBH diameter of tree at breast height. Tree Species common name. Dripline average branch extension from the trunk as radius in feet. Condition (health, structure and form rating) ‘1’ indicates good to excellent condition; none or negligible visible health-related problems or structural defects, ‘2’ indicates fair condition; minor visible problems or defects, though not sufficient to affect their canopy cover contribution to this site. Comments on Condition that are visible at time of inspection. Tree Type Broad-Leafed - trees with flat leaves, not scaled or needle shaped, which usually lose their foliage at the end of the growing season. Coniferous - any of various mostly needle-leaved or scale-leaved, chiefly evergreen, cone-bearing gymnosperms. Deciduous - trees that shed or otherwise loose their foliage at the end of DocuSign Envelope ID: C2073BA0-CA13-4596-8BE6-FB745ABA8D08 Jordan Salisbury, Blue Fern Development, LLC RE: Tree Canopy Cover Analysis, TPN 3343300861 November 11, 2019 Page 3 of 9 Greenforest Registered Consulting Arborist the growing season. Evergreen - trees that maintain the majority of their foliage each year. Trees showing on the attached exhibit, yet omitted from the inventory are too small and are not regulated. ATTACHMENTS: 1. Assumptions and Limiting Conditions 2. Certification of Performance 3. Significant Tree Inventory 4. Tree Number Exhibit DocuSign Envelope ID: C2073BA0-CA13-4596-8BE6-FB745ABA8D08 Jordan Salisbury, Blue Fern Development, LLC RE: Tree Canopy Cover Analysis, TPN 3343300861 November 11, 2019 Page 4 of 9 Greenforest Registered Consulting Arborist Attachment No. 1 - Assumptions & Limiting Conditions 1. A field examination of the site was made 11/08/2019. My observations and conclusions are as of that date. 2. Unless stated other wise: 1) information contained in this report covers only those trees that were examined and reflects the condition of those trees at the time of inspection; and 2) the inspection is limited to visual examination of the subject trees without dissection, excavation, probing, or coring. There is no warranty or guarantee, expressed or implied that problems or deficiencies of the subject tree may not arise in the future. 3. The consultant/appraiser shall not be required to give testimony or to attend court by reason of this report unless subsequent contractual arrangements are made. 4. Loss or alteration of any part of this report invalidates the entire report. 5. Unless required by law otherwise, possession of this report or a copy thereof does not imply right of publication or use for any purpose by any other than the person to whom it is addressed, without the prior expressed written or verbal consent of the consultant/appraiser. 6. Any legal description provided to the consultant/appraiser is assumed to be correct. Any titles and ownership to any property are assumed to be good and marketable. No responsibility is assumed for matters legal in character. Any and all property is appraised or evaluated as though free and clear, under responsible ownership and competent management. 7. Construction activities can impact trees in unpredictable ways. All retained trees should be inspected at the completion of construction, and regularly thereafter as part of ongoing maintenance. 8. The consultant does not assume any liability for the subject tree and does not represent the transfer of such for any risks associated with the tree from the landowner to the consultant. Risk management is solely the responsibility of the landowner. DocuSign Envelope ID: C2073BA0-CA13-4596-8BE6-FB745ABA8D08 Jordan Salisbury, Blue Fern Development, LLC RE: Tree Canopy Cover Analysis, TPN 3343300861 November 11, 2019 Page 5 of 9 Greenforest Registered Consulting Arborist Attachment No. 2 - Certification of Performance I, Favero Greenforest, certify that: • I have personally inspected the trees and the property referred to in this report and have stated my findings accurately. • I have no current or prospective interest in the vegetation or the property that is the subject of this report and have no personal interest or bias with respect to the parties involved. • The analysis, opinion, and conclusions stated herein are my own and are based on current scientific procedures and facts. • My analysis, opinion, and conclusions were developed and this report has been prepared according to commonly accepted arboricultural practices. • No one provided significant professional assistance to me, except as indicated within the report. • My compensation is not contingent upon the reporting of a predetermined conclusion that favors the cause of the client of any other party nor upon the results of the assessment, the attainment of stipulated results, or the occurrence of any subsequent events. I further certify that I am a member in good standing of International Society of Arboriculture (ISA), and the ISA PNW Chapter, I am an ISA Certified Arborist (#PN- 0143A) and am Tree Risk Assessment Qualified, and am a Registered Consulting Arborist® (#379) with American Society of Consulting Arborists. I have worked as an independent consulting arborist since 1989. Signed: GREENFOREST, Inc. By Favero Greenforest, M. S. Date: November 11, 2019 Favero Greenforest Digitally signed by Favero Greenforest DN: cn=Favero Greenforest, o, ou, email=greenforestinc@mindspring.com, c=US Date: 2019.11.11 11:09:13 -08'00' DocuSign Envelope ID: C2073BA0-CA13-4596-8BE6-FB745ABA8D08 Jordan Salisbury, Blue Fern Development, LLC RE: Tree Canopy Cover Analysis, TPN 3343300861 November 11, 2019 Page 6 of 9 Greenforest Registered Consulting Arborist Attachment No. 3 – Significant Tree Inventory (Boldface type indicates Landmark tree) Tree No. DBH Species Dripline (R’) Condition Comment on Condition Tree Type 8001 8 Bigleaf maple 14 2 Asymmetric canopy B,D 8002 16 Bigleaf maple 14 2 Asymmetric B,D 8003 7 Bigleaf maple 14 2 Asymmetric B,D 8004 6 Bigleaf maple 14 2 Asymmetric B,D 8005 6 Bigleaf maple 10 2 Asymmetric B,D 8006 12 Bigleaf maple 14 2 Asymmetric B,D 8007 8 Red alder 12 1 B,D 8008 13 Bigleaf maple 16 1 B,D 8009 16 Black cottonwood 16 1 B,D 8010 10 Bigleaf maple 12 1 B,D 8011 62 Black cottonwood 40 1 B,D 8012 20 Douglas-fir 16 1 C,E 8013 20 Western red-cedar 14 2 Asymmetric C,E 8014 11 Bigleaf maple 8 2 Asymmetric B,D 8015 12 Bigleaf maple 10 2 Previous branch failure in upper canopy B,D 8016 14 Bigleaf maple 18 1 B,D 8018 12 Bigleaf maple 14 2 Asymmetric B,D 8019 19 Bigleaf maple 16 1 B,D 8020 11 Bigleaf maple 16 2 Asymmetric B,D 8021 27 Douglas-fir 18 1 C,E 8022 8 Pacific yew 14 1 C,E 8023 23 Douglas-fir 16 2 Lean C,E 8026 14 Bigleaf maple 14 2 Asymmetric B,D 8027 22 Western red-cedar 14 1 C,E 8028 29 Douglas-fir 18 1 C,E 8029 28 Douglas-fir 18 1 C,E 8030 25 Western red-cedar 16 1 C,E 8031 23 Black cottonwood 20 1 B,D 8035 13 Red alder 16 1 B,D 8036 9 Red alder 16 1 B,D 8037 9 Red alder 16 1 B,D 8038 9 Red alder 16 1 B,D DocuSign Envelope ID: C2073BA0-CA13-4596-8BE6-FB745ABA8D08 Jordan Salisbury, Blue Fern Development, LLC RE: Tree Canopy Cover Analysis, TPN 3343300861 November 11, 2019 Page 7 of 9 Greenforest Registered Consulting Arborist Tree No. DBH Species Dripline (R’) Condition Comment on Condition Tree Type 8039 8 Red alder 14 1 B,D 8040 8 Bigleaf maple 16 2 Asymmetric B,D 8041 26 Western red-cedar 16 1 C,E 8043 8 Red alder 14 1 B,D 8044 9 Red alder 16 1 B,D 8045 11 Red alder 16 1 B,D 8050 11 Red alder 16 1 B,D 8055 8,18,20 Bigleaf maple 25 2 Previous branch failure B,D 8056 28 Douglas-fir 22 1 C,E 8057 10,12 Bigleaf maple 16 2 Double leader B,D 8059 26 Bigleaf maple 16 2 B,D 8060 12 Bigleaf maple 14 2 Previous branch failure in upper canopy B,D 8061 21 Bigleaf maple 18 1 B,D 8062 9 Bigleaf maple 14 1 B,D 8063 40 Douglas-fir 20 1 C,E 8085 (4) 14-24 Bigleaf maple 30 2 B,D 8087 8 Bigleaf maple 14 1 B,D 8088 10 Bigleaf maple 16 1 B,D 8090 14 Bigleaf maple 16 1 B,D 8091 14 Oregon White ash 16 1 B,D 8092 12 Oregon White ash 16 1 B,D 8093 7,7,8 Oregon White ash 12 2 Diseased B,D 8096 8,8 Oregon White ash 12 1 B,D 8097 10 Oregon White ash 14 1 B,D 8098 8 Red alder 14 1 B,D 8099 9 Red alder 14 1 B,D 8101 10,12 Oregon White ash 16 2 Double leader B,D 8102 8,10,10 Oregon White ash 20 2 Multiple leaders B,D 8110 12,12,12 Bigleaf maple 20 2 Stumpsprout B,D 8113 9 Oregon White ash 14 1 B,D 8114 (4) 12-16 Bigleaf maple 20 2 Stumpsprout B,D 8116 15 Oregon White ash 18 2 Trunk decay B,D DocuSign Envelope ID: C2073BA0-CA13-4596-8BE6-FB745ABA8D08 Jordan Salisbury, Blue Fern Development, LLC RE: Tree Canopy Cover Analysis, TPN 3343300861 November 11, 2019 Page 8 of 9 Greenforest Registered Consulting Arborist Tree No. DBH Species Dripline (R’) Condition Comment on Condition Tree Type 8117 12 Scouler's willow 12 2 Trunk decay B,D 8118 12 Oregon White ash 12 1 B,D 8119 10 Bigleaf maple 14 1 B,D 8120 8,8 Bigleaf maple 14 2 double leader B,D 8123 14 Oregon White ash 14 1 B,D 8124 11 Oregon White ash 14 1 B,D 8125 6 Black cottonwood 8 1 B,D 8126 6,8 Oregon White ash 15 2 Double leader B,D 8127 52 Black cottonwood 30 2 Trunk decay B,D 8128 12 Bigleaf maple 12 2 Trunk decay, asymmetric B,D 8129 31 Douglas-fir 20 1 C,E 8130 19 Black cottonwood 20 1 B,D 8131 10 Red alder 18 1 B,D 8132 10 Red alder 15 1 B,D 8133 (5) 8-24 Pacific madrone 35 2 Multiple leaders B,E 8134 18,24,24 Bigleaf maple 25 2 Multiple leaders B,D 8135 11 Apple 16 2 Diseased, topped B,D 8137 6,7 Scouler's willow 10 1 B,D 8138 9 Scouler's willow 10 1 B,D A 8 Scouler's willow 10 1 B,D B 6 Apple 14 1 B,D C 12 Oregon White ash 14 1 B,D D 28 Douglas-fir 18 1 C,E E 6 Bitter cherry 8 1 B,D F 7 Bigleaf maple 12 1 B,D G 6 Pacific madrone 10 2 Asymmetric B,E H 8 Pacific madrone 10 2 Asymmetric B,E I 18 Black cottonwood 20 1 B,D J 8 Bigleaf maple 14 1 B,D DocuSign Envelope ID: C2073BA0-CA13-4596-8BE6-FB745ABA8D08 LAKE WASHINGTON BLVD NEA B C D E F GH I J PLANNING DIVISION 12/2/2019 MHerrera RECEIVED NON-SURVEYED TREE ADDED AT TIME OF INSPECTION Jordan Salisbury, Blue Fern Development, LLC RE: Tree Canopy Cover Analysis, 3343300861 November 11, 2019 Page 9 of 9 Attachment No. 4 – Tree Number Exhibit DocuSign Envelope ID: C2073BA0-CA13-4596-8BE6-FB745ABA8D08