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Home My WebLink AboutRS_Pruning_Arborist_Report_2000_Lake_Washington_02_25_221 ARBORIST REPORT for - 2000 Lake Washington Apartments - Security Properties Parcel: 3344500315 1300 N 20th Street, Renton, WA 98056 Friday, February 24th, 2022 Site plan on ﬁnal page of report By Izzy Nosan | ISA Certiﬁed Arborist WE-11653A | TRAQ Certiﬁed | izzy@aplustree.com 985 Walnut Avenue, Vallejo, CA 94592 | (206) 550-6679 | www.aplustree.com 2 Background Information This report was prepared on behalf of 2000 Lake Washington Apartments regarding recommended 2022 general tree care on site, located at 1300 N 20th Street, Renton, WA 98056. The apartment complex parcel is located within several critical areas. This report was created to describe recommended pruning and mitigation within these areas. 44 trees are included on this report. The trees are located sporadically around community. Please see attached Site Plan and corresponding pin numbers for approximate locations. The tree assessment was performed on September 15th, 2021. The tree assessment was regarding the present conditions, integrity, and future expectations of the trees. The trees were assessed with speciﬁc focus on the potential risk to the property, residents, and visitors. Assignment (and any limiting factors) The assignment was a Level 2 Basic Risk Assessment of the trees within the parcel. This limited visual assessment was performed solely from ground grade and was completed to provide recommendations for future action. A Plus was requested to assess all trees on site. A report was created regarding recommendations for safety concerns, potential impact to the property, and to distinguish if the trees pose future risks. 2000 Lake Washington management intends to reduce the risk of future tree failures and/or structural damage on site by acquiring arborist services for mitigation of trees. 2000 Lake Washington management intends to plant replacement trees according to the City of Renton's regulations for tree retentions standards following mitigatory tree care. There were no limitations to assessment. Report continues on following page 3 Observations At the time of the assessment, the following was observed: (Please refer to the associated photos in the Attachments at the end of report.) 1)1 12-18” DBH quaking aspen, (Populus tremuloides) •Approximate height: 45 feet •A Plus Tree ID# 997302 •Tree Pin #1 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 2)1 6-12” DBH purple leaf plum, (Prunus cerasifera) •Approximate height: 35 feet •A Plus Tree ID# 997282 •Tree Pin #2 a.This tree is contacting the adjacent building and has overextended limbs. b.This tree is being recommended for a crown reduction in order to reduce the potential for limb failure and to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 3)1 6-12” DBH purple leaf plum, (Prunus cerasifera) •Approximate height: 35 feet •A Plus Tree ID# 997283 •Tree Pin #3 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. Report continues on following page 4 4)1 12-18” DBH red maple, (Acer rubrum) •Approximate height: 45 feet •A Plus Tree ID# 997286 •Tree Pin #4 a.This tree has a large, heavy limb overhanging the adjacent building. b.This tree is being recommended for end-weight reduction pruning in order to reduce the likelihood of limb failure. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 5)1 12-18” DBH quaking aspen, (Populus tremuloides) •Approximate height: 55 feet •A Plus Tree ID# 997287 •Tree Pin #5 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 6)1 18-24” DBH red maple, (Acer rubrum) •Approximate height: 45 feet •A Plus Tree ID# 1000430814 •Tree Pin #6 a.This tree has low hanging limbs likely to contact vehicles in the road. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting vehicles. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. Report continues on following page 5 7)1 18-24” DBH red maple, (Acer rubrum) •Approximate height: 55 feet •A Plus Tree ID# 997572 •Tree Pin #7 a.This tree is contacting the adjacent building and has low hanging limbs likely to contact vehicles in the road. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting buildings and vehicles. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations 8)1 6-12” DBH ﬂowering cherry, (Prunus serrulata) •Approximate height: 25 feet •A Plus Tree ID# 997293 •Tree Pin #8 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 9)1 6-12” DBH ﬂowering cherry, (Prunus serrulata) •Approximate height: 25 feet •A Plus Tree ID# 997297 •Tree Pin #9 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. Report continues on following page 6 10)1 6-12” DBH purple leaf plum, (Prunus cerasifera) •Approximate height: 30 feet •A Plus Tree ID# 997575 •Tree Pin #10 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 11)1 12-18” DBH red maple, (Acer rubrum) •Approximate height: 55 feet •A Plus Tree ID# 997593 •Tree Pin #11 a.This tree has low hanging limbs likely to contact large vehicles in the road. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting vehicles. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 12)1 18-24” DBH red maple, (Acer rubrum) •Approximate height: 60 feet •A Plus Tree ID# 997567 •Tree Pin #12 a.This tree has limbs contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. Report continues on following page 7 13)1 12-18” DBH red maple, (Acer rubrum) •Approximate height: 60 feet •A Plus Tree ID# 997599 •Tree Pin #13 a.This tree has limbs contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 14)1 12-18” DBH red maple, (Acer rubrum) •Approximate height: 55 feet •A Plus Tree ID# 997589 •Tree Pin #14 a.This tree has limbs contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 15)1 12-18” DBH shore pine, (Pinus contorta) •Approximate height: 45 feet •A Plus Tree ID# 997565 •Tree Pin #15 a.This tree has limbs contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. This tree also possess codominant structure with included bark between the leaders. This type of structure is viewed as a defect. Static steel cabling is being recommended to be installed between the 2 leaders in order to reduce the likelihood of a splitting failure. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. Report continues on following page 8 16)1 6-12” DBH white pine, (Pinus strobus) •Approximate height: 35 feet •A Plus Tree ID# 1000430949 •Tree Pin #16 a.This tree has limbs contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 17)1 12-18” DBH red maple, (Acer rubrum) •Approximate height: 55 feet •A Plus Tree ID# 997300 •Tree Pin #17 a.This tree has limbs contacting the adjacent building and growing near the chimney. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 18)1 6-12” DBH quaking aspen, (Populus tremuloides) •Approximate height: 45 feet •A Plus Tree ID# 997301 •Tree Pin #18 a.This tree possesses codominant structure with included bark between the leaders. This type of structure is viewed as a defect. Static steel cabling is being recommended to be installed between the 3 leaders in order to reduce the likelihood of a splitting failure. b.Decay was viewed between the leaders, and is expected to fail if not mitigated. c.Cabling shall abide by ANSI 300 Standards. Report continues on following page 9 19)1 3-6” DBH quaking aspen, (Populus tremuloides) •Approximate height: 30 feet •A Plus Tree ID# 997281 •Tree Pin #19 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 20)1 12-18” DBH red maple, (Acer rubrum) •Approximate height: 40 feet •A Plus Tree ID# 997280 •Tree Pin #20 a.This tree has low hanging limbs likely to contact large vehicles in the road. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting vehicles. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 21)1 12-18” DBH big leaf maple, (Acer macrophyllum) •Approximate height: 45 feet •A Plus Tree ID# 997692 •Tree Pin #21 a.This tree has low hanging limbs likely to contact large vehicles in the road. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting vehicles. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. Report continues on following page 10 22)1 18-24” DBH big leaf maple, (Acer macrophyllum) •Approximate height: 55 feet •A Plus Tree ID# 1000430408 •Tree Pin #22 a.This tree has low hanging limbs likely to contact large vehicles in the road. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting vehicles. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 23)1 6-12” DBH quaking aspen, (Populus tremuloides) •Approximate height: 35 feet •A Plus Tree ID# 997279 •Tree Pin #23 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 24)1 3-6” DBH big leaf maple, (Acer macrophyllum) •Approximate height: 30 feet •A Plus Tree ID# 997291 •Tree Pin #25 a.This tree has low hanging limbs likely to contact large vehicles in the road. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting vehicles. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. Report continues on following page 11 25)1 6-12” DBH purple leaf plum, (Prunus cerasifera) •Approximate height: 30 feet •A Plus Tree ID# 997581 •Tree Pin #26 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 26)1 12–18” DBH quaking aspen, (Populus tremuloides) •Approximate height: 45 feet •A Plus Tree ID# 997577 •Tree Pin #27 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 27)1 12-18” DBH quaking aspen, (Populus tremuloides) •Approximate height: 55 feet •A Plus Tree ID# 1000430813 •Tree Pin #28 a.This tree is contacting the adjacent building and has an excessive amount of weight in the top of the tree, and weak attachments (codominant leaders). b.This tree is being recommended for a crown reduction in order to reduce the potential for top failure and to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. Report continues on following page 12 28)1 18-24” DBH red maple, (Acer rubrum) •Approximate height: 50 feet •A Plus Tree ID# 1001431724 •Tree Pin #29 a.This tree has a large, heavy limb overhanging the adjacent carport and road. b.This tree is being recommended for end-weight reduction pruning in order to reduce the likelihood of limb failure. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 29)1 6-12” DBH ﬂowering cherry, (Prunus serrulata) •Approximate height: 25 feet •A Plus Tree ID# 997620 •Tree Pin #30 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 30)1 12-18” DBH red maple, (Acer rubrum) •Approximate height: 40 feet •A Plus Tree ID# 997619 •Tree Pin #31 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. Report continues on following page 13 31)1 6-12” DBH ﬂowering cherry, (Prunus serrulata) •Approximate height: 20 feet •A Plus Tree ID# 997617 •Tree Pin #32 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 32)1 6-12” DBH Deodar cedar, (Cedrus deodara) •Approximate height: 35 feet •A Plus Tree ID# 997616 •Tree Pin #33 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 33)1 6-12” DBH ﬂowering cherry, (Prunus serrulata) •Approximate height: 25 feet •A Plus Tree ID# 997615 •Tree Pin #34 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. Report continues on following page 14 34)1 18-24” DBH red maple, (Acer rubrum) •Approximate height: 50 feet •A Plus Tree ID# 997614 •Tree Pin #35 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 35)1 12-18” DBH quaking aspen, (Populus tremuloides) •Approximate height: 40 feet •A Plus Tree ID# 997604 •Tree Pin #36 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 36)1 12-18” DBH red maple, (Acer rubrum) •Approximate height: 45 feet •A Plus Tree ID# 1000430424 •Tree Pin #37 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. Report continues on following page 15 37)1 12-18” DBH sweetgum, (Liquidambar styraciﬂua) •Approximate height: 55 feet •A Plus Tree ID# 997606 •Tree Pin #38 a.This tree has an excessive amount of weight in the top of the tree, and is weak wooded/species characteristics of failure at this size . b.This tree is being recommended for a crown reduction in order to reduce the potential for top failure. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 38)1 6-12” DBH quaking aspen, (Populus tremuloides) •Approximate height: 45 feet •A Plus Tree ID# 997695 •Tree Pin #39 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 39)1 12-18” DBH red maple, (Acer rubrum) •Approximate height: 45 feet •A Plus Tree ID# 997705 •Tree Pin #40 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. Report continues on following page 16 40)1 18-24” DBH red maple, (Acer rubrum) •Approximate height: 45 feet •A Plus Tree ID# 997702 •Tree Pin #41 a.This tree is almost contacting the chimney. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the chimney. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 41)1 18-24” DBH red maple, (Acer rubrum) •Approximate height: 45 feet •A Plus Tree ID# 997700 •Tree Pin #42 a.This tree is contacting the building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. 42)1 3-6” DBH Japanese maple, (Acer palmatum) •Approximate height: 20 feet •A Plus Tree ID# 997698 •Tree Pin #43 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. Report continues on following page 17 43)1 12-18” DBH quaking aspen, (Populus tremuloides) •Approximate height: 45 feet •A Plus Tree ID# 997699 •Tree Pin #44 a.This tree is contacting the adjacent building. b.This tree is being recommended for clearance pruning in order to clear any tree material from contacting the building. c.The smallest-diameter cuts will be utilized to achieve the intended results. All pruning shall abide by ANSI 300 Standards. d.Crew will utilize reduction cuts when possible in order to retain existing limbs unless no viable laterals exist, where the branch will be removed to a branch collar. e.No more than 20% of live canopy will be removed from the tree during pruning operations. Testing / Analysis No soil assessment or advanced testing procedures were conducted. Report continues on following page 18 Discussion and recommendations The majority of recommended tree care is for clearance pruning. Many trees on site are contacting the buildings, almost contacting the buildings, or possess limbs likely to be contacted by passing vehicles. Clearance pruning will utilize minimal pruning practices to clear the aforementioned items. For all trees, cuts are not expected to exceed 3 inches in diameter. Clearance pruning is important tree maintenance to upkeep in order for properties to be in compliance with local ﬁre codes and to reduce the likelihood of property damage, insect infestation, or rodent infestation. Crown reductions are being recommended for select trees. The trees included on this report for crown reductions have become large for their species and are expected to experience failures if retained as is. Trees of the included species can be prone to splitting failures at their respective sizes. The trees will be reduced back to a point where the likelihood of future failure will be reduced. Crown reductions remove weight from the ends of branches back to a healthy, growing lateral branch, which will form a new crown. The process reduces long, heavy, or overextended branches, as well as removing any branches with signiﬁcant defects. Reduction cuts are not expected to exceed 4 inches in diameter. Weight reduction pruning is being recommended for select trees possessing heavy limbs expected to fail in a heavy loading event or under normal circumstances. Reducing weight at the ends of these limbs will reduce the likelihood of them failing. Static steel cable installation is being recommended for select trees to prevent a future splitting failure and to encourage future integrity.. The purpose of this is to support weak crotches/codominant leaders with included bark. (This type of structure is viewed as a defect as it an increase the likelihood of splitting failures along the included bark union). Upon visual inspection of the trees included on this report, they were recommended for the aforementioned pruning and arborist services. These recommendations were given with focus on reducing the likelihood of property damage and/or personal harm to residents/visitors. 2000 Lake Washington management intends to plant replacement trees according to the City of Renton’s standard, following mitigatory tree care. Report continues on following page 19 Site Map