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Revised Arborist Report, 481 Sycamore Road January 7, 2019 <br /> hardscape. The city requested it be saved, so Traverso Tree staff dug an exploratory trench <br /> along the proposed hardscape to locate and assess roots. Few significant roots were <br /> encountered—one 1.5" root was found to the south, but all other roots were 1" or smaller <br /> (Figure 3). Since encroachment is low, the pool and cabana design can be constructed as <br /> designed. Roots were pruned prior to trench backfilling. (revised 1/7/19) <br /> The retained trees shall be protected by temporary protection fencing. The ideal type of fencing <br /> is 6' chain-link, as it is difficult to encroach, but alternative types may be approved by the City. <br /> Any type of fencing shall not be adjusted or removed without consulting the arborist. <br /> In summary, it is my opinion that twenty-eight (28) trees will need to be removed, eighteen (18) <br /> of which are dead. The remaining twenty-eight (28) trees can be retained given that the <br /> protection measures within this report are followed. (revised 1/7/19) <br /> Assumptions & Limitations - , 4 <br /> This report is based on my site visit on 4/26/18, • r`. .r,-r <br /> grading & drainage plan by Alexander &Associates, x z , ''s <br /> Inc. (dated 7/18/18), and the landscape plan by f- , 4' 41?. ...r4 <br /> Environmental Foresight, Inc. (dated 10/17/18). It �� ,;, <br /> was assumed that the proposed improvements and :' �." , ,�, °'„+ <br /> 8 . . <br /> trees were accurately surveyed. �* . th <br /> . • <br /> The health and structure of the trees were assessed = <br /> , <br /> visually from ground level. No drilling, root ,- ..- <br /> excavation, or aerial inspections were performed ' <br /> except for oak#23. Internal or non-detectable ,, ,, '',, <br /> defects may exist and could lead to part or whole '? ,4 <br /> tree failures. Due to the dynamic nature of trees and ':. ' .;r' <br /> their environment, it is not possible for arborists to ' ." • "- <br /> guarantee that trees will not fail in the future. . 0.4 <br /> ' <br /> �, <br /> ;�� �' , <br /> ^`,`' ,. _ <br /> IIIIIII <br /> IIIIII <br /> " Figure 3. Exploratory trench by <br /> ,.* tree#23 was dug by hand with air <br /> z . i ; spade assistance. Largest root <br /> .,,a.- measured 1.5" in diameter(above); <br /> _, / all other roots were 1"or smaller. <br /> ;�.;.. i Roots were cleanly pruned before <br /> I _A trench was backfilled. <br /> i • r' <br /> � <br /> Jennifer Tso, Certified Arborist 3 <br />