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Arborist Report—Gudaitis Residence, Pleasanton Page 12 <br /> January 19, 2021 <br /> Maintenance of impacted trees <br /> Preserved trees will experience a physical environment different from that pre-development. As a <br /> result, tree health and structural stability should be monitored. Occasional pruning, fertilization, <br /> mulch, pest management, replanting and irrigation may be required. In addition, provisions for <br /> monitoring both tree health and structural stability following construction must be made a priority. <br /> Inspect trees annually and following major storms to identify conditions requiring treatment to <br /> manage risk associated with tree failure. <br /> Our procedures included assessing trees for observable defects in structure. This is not to say <br /> that trees without significant defects will not fail. Failure of apparently defect-free trees does <br /> occur, especially during storm events. Wind forces, for example, can exceed the strength of <br /> defect-free wood causing branches and trunks to break. Wind forces coupled with rain can <br /> saturate soils, reducing their ability to hold roots, and blow over defect-free trees. Although we <br /> cannot predict all failures, identifying those trees with observable defects is a critical component of <br /> enhancing public safety. <br /> Furthermore, trees change over time. Our inspections represent the condition of the tree at the <br /> time of inspection. As trees age, the likelihood of failure of branches or entire trees increases. <br /> Annual tree inspections are recommended to identify changes to tree health and structure. In <br /> addition, trees should be inspected after storms of unusual severity to evaluate damage and <br /> structural changes. Initiating these inspections is the responsibility of the client and/or tree owner. <br /> If you have any questions about my observations or recommendations, please contact me. <br /> HortScience I Bartlett Consulting <br /> 106.4 <br /> Pam Nagle <br /> Consulting Arborist and Urban Forester <br /> Certified Arborist#WE-9617A <br /> ISA Tree Risk Assessment Qualified <br /> HortScience I Bartlett Consulting. Divisions of The F.A. Bartlett Tree Expert Company <br />ay from TREE PROTECTION ZONE and avoid <br /> pulling and breaking of roots of trees to remain. If roots are entwined, the Consulting Arborist <br /> may require first severing the major woody root mass before extracting the trees, or grinding <br /> the stump below ground. <br /> 9. All trees shall be irrigated on a schedule to be determined by the Consulting Arborist(every 3 <br /> to 6 weeks is typical). Each irrigation shall wet the soil within the TREE PROTECTION ZONE to a <br /> depth of 30". <br /> 10. If injury should occur to any tree during construction, it should be evaluated as soon as <br /> possible by the Consulting Arborist so that appropriate treatments can be applied. <br /> 11. No excess soil, chemicals, debris, equipment or other materials shall be dumped or stored <br /> within the TREE PROTECTION ZONE. <br /> 12. Any additional tree pruning needed for clearance during construction must be performed by a <br /> Certified Arborist and not by construction personnel. <br /> HortScrence 1 Bartlett Consulting. Divisions of The F.A. Bartlett Tree Expert Company <br />e chipped and spread beneath <br /> the trees within the TREE PROTECTION ZONE <br /> 10. Structures and underground features to be removed within the TREE PROTECTION ZONE shall <br /> use equipment that will minimize damage to trees above and below ground, and operate from <br /> outside the TREE PROTECTION ZONE. Tie back branches and wrap trunks with protective <br /> materials to protect from injury as directed by the Project arborist. The Project arborist shall be <br /> on-site during all operations within the TREE PROTECTION ZONE to monitor demolition activity. <br />,,t1:,. -4, ' '?r!'• '. .#e di •uj' 1; 0:11 11 <br /> tr... za. cli• ,.,... . 126* e:t4,104.,- z FM ,::2.510 6.K.44ve ..r• „n•et.' .r---3 7- <br /> A. <br /> L.0 16.o6• • <br /> "- ,...iaraf--LEL. I i-LI.ZliCe ottD•14' '.:01$01"- <br /> •* fl <br /> "Z S A f 3 . OMOM4 44 <br /> CD <br /> . . <br /> i <br /> Ser <br /> . V <br /> •C 4- . ... . <br /> 41,*-ni t 1101 1444 t ts k t rii -' .c:;.0 PAR C E i 7 ; _1 <br /> 4..'• <br /> PARCEL P.1 <br /> I Cr.510 ... <br /> k W4 ill <br /> •f: <br /> y Its <br /> PM <br /> Ii; 1 <br /> rA RiIi_ E3 1j 1. ..),, -"TT.)"NI ;:.'.f7.•![....? o , 1 i.1 .. .. 5 <br /> t V Vi <br /> • ) <br /> RECOrIDERS MEMO ---.} <br /> LENBILITY FOR NICPORt,ING MD <br /> CPPY1')G tifh•APSFACrOry Pi .1 POHTION <br /> nt 71.IC I 1-.. t III. 1,1 ll' ,, ..• ",-,-,...•... ft <br />