2_Exhibits A, C & D - Laserfiche WebLink

4112 Foothill Road Tree Assessment Pleasanton, CA October 5,2017 Tree No. Species Trunk Heritage Condition Suitability for Comments Diameter Tree? 1=poor Preservation (in.) 5=excellent 1 Valley oak 44 Yes 3 Low Located at edge of street; large wound on N at base; twig and branch dieback; canopy extends S. 2 Valley oak 49 Yes 3 Low Engulfed in poison oak; history of branch failure at 5' on E, 12' on S 12' on N and 9' on W; multiple trunks arise from 7'. 3 Valley oak 25 Yes 3 Moderate Codominant trunks arise from 5'; twig dieback. 4 Valley oak 31 Yes 3 Moderate Multiple trunks arise from 7'; wide canopy; mistletoe. 5 Valley oak 42 Yes 3 Low Multiple trunks arise from 9'; wide canopy; history of branch failure; mistletoe; wound on middle branch S. d trees Trees preserved at the 4112 Foothill Blvd. site will experience a physical environment different from that pre-development. As a result, tree health and structural stability should be monitored. A Homeowner Guide to Care of Oaks is provided in Exhibits. Occasional pruning, mulch and pest management may be required. In addition, provisions for monitoring both tree health and structural stability following construction must be made a priority. As trees age, the likelihood of branches or entire trees failing will increase. Therefore, annual inspection for hazard potential is recommended. If you have any questions regarding my observations or recommendations, please contact me. HortScience, Inc. 25<-17 Maryellen Bell Horticultural Consultant WE#5643A , 2002)and adhere to the most recent editions of the American National Standard for Tree Care Operations(Z133.1)and Pruning (A300). While in the tree, the Certified Arborist should perform an aerial inspection to identify defects that are not visible from the ground that require treatment. 4. All tree work shall comply with the Migratory Bird Treaty Act as well as California Fish and Wildlife code 3503-3513 to not disturb nesting birds. To the extent feasible tree and pruning and removal should be scheduled outside of the breeding season. Breeding bird surveys should be conducted prior to tree work. Qualified biologists should be involved in establishing work buffers for active nests. 5. Apply and maintain a 4-6"-deep layer of wood chip mulch (gorilla hair mulch is not acceptable)within the TREE PROTECTION ZONE. Keep mulch 24-30"from the trunk. Allow leaf litter to accumulate under the tree. Recommendations for tree protection during construction 1. No demolition, excavation, construction or storage of materials shall occur within the TREE PROTECTION ZONE unless approved and monitored by the Consulting Arborist. No underground services including utilities, sub-drains, water, sewer or irrigation shall be placed in the TREE PROTECTION ZONE unless approved and monitored by the Consulting Arborist. Spoil from trench, footing, utility or other excavation shall not be placed within the TREE PROTECTION ZONE, either temporarily or permanently. Any modifications must be approved and monitored by the Consulting Arborist. 2. All demolition, excavation and construction within the dripline of trees shall be done using the smallest equipment possible. The Consulting Arborist will identify where hand excavation may be required. Motorized equipment shall not be used within the TREE PROTECTION ZONE. 3. Prior to excavation for the demolition and construction the tree may require root pruning outside the TREE PROTECTION ZONE by cutting all roots cleanly to the depth of construction. Roots will be exposed by either: pulling soil away from the tree by digging , normally 54"above grade. A multi-branched tree, which has