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Updated Arborist Report HortScience, Inc. <br /> 4112 Foothill Rd., October 29, 2018 Page 3 <br /> Valley Oak#2 was the second largest tree with a 39"trunk diameter, and was also in fair <br /> condition. The base of the tree was engulfed in poison oak and in the past it had at least one <br /> branch failure on every side of the tree (Photo 3). It had multiple trunks arising at a 6' height. <br /> Valley oak#3 was an off-site tree and had a trunk measuring 25" in diameter, with smaller <br /> codominant trunks arising from a 5' height. It was located east of the proposed building pad and <br /> its canopy extended 28'from the trunk. <br /> • <br /> . t - <br /> al•,y^ar ,' <br /> Sy � A �� <br /> t <br /> w <br /> • <br /> tica r , <br /> : •• <br /> S { <br /> u s .. «•a <br /> � �• a.� �� .'P <br /> ti . <br /> r,' <br /> amoi.�� 4:., '. <br /> 4 ,a� <br /> • <br /> • <br /> Photo 3: Valley oak#2, viewed from the northeast, had a history of several failed branches. <br /> Valley oak#4 had a 31"trunk diameter with multiple trunks arising from a 7' height. It had a wide <br /> canopy filled with mistletoe. <br /> Valley oak#5 was an off-site tree located northeast of the proposed building pad. Its wide <br /> canopy extended 33'to the west. It had a 43"trunk diameter with multiple trunks arising from a 9' <br /> height. The middle stem had a wound on the south. There was mistletoe peppered throughout <br /> the crown. It had a branch failure in the past. <br /> Suitability for Preservation <br /> Before evaluating the impacts that will occur during development, it is important to consider the <br /> quality of the tree resource itself, and the potential for individual trees to function well over an <br /> extended length of time. Trees that are preserved on development sites must be carefully <br /> selected to provide greater assurance they survive development impacts, adapt to a new <br /> environment, and perform well in the landscape. <br /> Coast live oak#1 viewed from the east was a ,,► <br /> massive tree. The base of the tree was f , i • <br /> located on the edge of the pavement to the <br /> north (red circle)and had a large wound. ,_f ltill <br />age <br /> from epicormics; extensive structural defects that cannot be abated. <br /> 5. Rating the suitability for preservation as"high", "moderate"or"low". Suitability for <br /> preservation considers the health, age and structural condition of the tree species, <br /> and its potential to remain an asset to the site. <br /> High: Trees with good health and structural stability that have the potential <br /> for longevity at the site. <br /> Moderate: Trees with somewhat declining health and/or structural defects than <br /> can be abated with treatment. The tree will require more intense <br /> management and monitoring, and may have shorter life span than <br /> those in 'high' category. <br /> Low: Trees in poor health or with significant structural defects that cannot <br /> be mitigated. Tree is expected to continue to decline, regardless of <br /> treatment. The species or individual tree may have characteristics <br /> that are undesirable for landscapes, and generally are unsuited for <br /> use areas. <br />(i.e. root pruning, <br /> trimming, setting up tree protection, etc.). The bond or security may be released early with a <br /> certification letter by the arborist confirming he/she was present during said tree work and work <br /> was performed in accordance with the arborist's recommendations. (PROJECT SPECIFIC <br /> CONDITION) <br /> P18-0109 Planning Commission <br /> Page 12 of 13 <br />ed units. (PROJECT <br /> SPECIFIC CONDITION) <br /> P18-0109 Planning Commission <br /> Page 4 of 13 <br />