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TR-2009-10bCITY OF CUPERTINO 10300 Torre Avenue, Cupertino, California 95014, (408) 777-3308 To: Mayor and City Council Members Chairperson and Planning Commissioners From: Aarti Shrivastava, Director of Community Developmen- Prepared by: Aki Honda Snelling, Senior Planner Date: September 10, 2009 Subject: Director's Minor Modification, DIR-2009-16, and Tree Removal Application, TR-2009- 10, for exterior improvements consisting of reconfiguration of the rear parking lot, minor site enhancements, tree removals and landscape replanting on property located at 19333 Vallco Parkway for Apple, Inc. Chapter 19.132 of the Cupertino Municipal Code allows for administrative approval of minor changes in a project. The Director reports her decision to the City Council and Planning Commission in time to allow an appeal of the decision within fourteen calendar days. BACKGROUND: In November 2008, Apple acquired the subject property located at 19333 Vallco Parkway consisting of a 17.53 acre site with three two-story office buildings. The site was previously owned by Hewlett Packard. Apple is currently in the process of conducting interior tenant improvements for the existing buildings in anticipation of its employees occupying the buildings in the fall. The proposed exterior improvements are necessary to update and enhance the site in conjunction with the tenant improvements. DISCUSSION: The Director's Minor Modification application is a request to conduct the following exterior site improvements: • Reconstruction and reconfiguration of the rear parking lot that will result in a total of 1,247 parking stalls, including 1,015 standard uni-size parking stalls, 23 accessible parking stalls, and 209 compact parking stalls. The total existing parking is 1,082 parking stalls. The site is required to have a minimum of 1,028 standard parking stalls (including accessible stalls); therefore, the proposed parking will comply with the parking requirements. Apple is proposing to install the 209 compact parking stalls for daily use by their security vehicles and overflow parking. A condition of approval will ensure that the site maintains the required number of standard and accessible parking stalls at any given time. • Restriping of faded and worn parking stalls along the side and front parking areas. • Landscaped bio-swales in the rear parking lot to function as storm water treatment areas. DIR-2009-16 September 10, 2009 Page 2 • Construction of a new outdoor courtyard area at the rear of Building B to accommodate outdoor eating areas for Apple employees. • Construction of a new sound enclosure for a generator yard in the rear parking lot across from Building A. The enclosure will be 20 feet high of precast concrete panels with finish and color to match the existing buildings. • Landscaping improvements to add new landscape areas and replanting of trees in the rear parking lot and within the new outdoor courtyard area. • Accessibility improvements to meet disabled accessibility requirements per Title 24 building standards, including new accessible parking stalls, wallcways and ramps. • Replacement of exterior metal siding on Building B to replace existing metal siding that has rusted. The proposed exterior and site enhancements are considered minor and will not alter the architectural style, character and land use of the building. The Tree Removal Application consists of: • The removal of a total of 110 parking lot trees on site, and the planting of a total of 190 replacement trees, which exceeds the tree replacement requirements (188 trees) prescribed in the Tree Ordinance. All of the replacement trees will be 24-inch box or larger. • Staff has worked with the applicant to retain as many trees as possible on site due to construction activities. The majority of the trees that are proposed for removal are either in fair or poor condition, or damaging the existing parking lot pavement. None of the proposed trees for removal are specimen trees. A total of 103 trees are being removed due to their location in conflict with the proposed construction activities. The trees along the perimeter of the subject property consisting of redwood, Chinese elm and Monterey pine trees are proposed to remain, except for three trees that have been identified as dead. • Replacement trees will consist primarily of London Plane trees and Deep Coral Crepe Myrtle trees in the rear parking lot. The Santa Clara Valley Water District reviewed and supports these tree choices, given the proximity of the parking lot to the adjacent creek to the east. Additionally, the Public Works Department and the Water District have approved of the ground cover and shrub choices for the bio-swales. Please refer to the attached plan set for the detail planting list. ACTION: The Director of Community Development deems the modifications minor and approves the minor modification application and tree removal application with the following conditions: APPROVED PROTECT The approval is based on Exhibits submitted by Kier & Wright, titled "Apple, Inc., VP2 Director's Minor Modification Package, 19333 Vallco Parkway Cupertino, California," consisting of C0.0 through C5.0, C02.04, C03.01, Courtyard Landscape Plan, L-03.01, L- 03.02, L06.00, A09.01, AB09.00, AB09.01, courtyard site materials and finishes, associated generator information, Tree Replacements table, and Arborist Report prepared by Deborah Ellis dated June 12, 2009, except as may be amended by the conditions in this approval. G:IPlanninglPDREPORTIDirreports120091DIR-2009-16, Final.Doc DIR-2009-16 September 10, 2009 Page 2 2. TREE REPLACEMENTS The applicant shall be required to plant 190 trees as shown in the Tree Replacement table submitted by the applicant in accordance with the City's Protected Trees Ordinance. Any modifications to the approved tree replacements must be approved by the Director of Community Development. 3. IN-LIEU TREE REPLACEMENT FEE In the event a replacement tree cannot be planted on the property as determined by the Director of Community Development, the applicant will be required to pay an in-lieu tree replacement fee based upon the purchase and installation cost of the replacement tree(s) in compliance with the City's Protected Trees ordinance. 4. SITE IMPROVEMENTS Prior to final occupancy, all site improvements/tree replacement work shall be completed to the satisfaction of the Director of Community Development. 5. REQUIRED PARKING The applicant shall be required to maintain the required number of standard uni-size parking stalls and accessible parking stalls as required by the City's Parking Ordinance and Title 24 building standards. Compact parking stalls may not satisfy the required parking for the site. Any modifications to the approved parking plan must be approved by the Director of Community Development. 6. NOTICE OF FEES DEDICATIONS, RESERVATIONS OR OTHER EXACTIONS The Conditions of Project Approval set forth herein may include certain fees, dedication requirements, reservation requirements, and other exactions. Pursuant to Government Code Section 66020(d) (1), these Conditions constitute written notice of a statement of the amount of such fees, and a description of the dedications, reservations, and other exactions. You are hereby further notified that the 90-day approval period in which you may protest these fees, dedications, reservations, and other exactions, pursuant to Government Code Section 66020(a), has begun. If you fail to file a protest within this 90-day period complying with all of the requirements of Section 66020, you will be legally barred from later challenging such exactions. The approval is granted on September 10, 2009. Please note that an appeal of this decision can be made within 14 calendar days from the approval date. The fourteen calendar day appeal period expires on September 24, 2009. If an appeal is filed, a public hearing will be scheduled before the Planning Commission. If no appeal is filed, the director's minor modification and tree removal approvals become effective after September 24, 2009. Enclosures: Attachment A: Plan Set & Arborist Report prepared by Deborah Ellis dated June 12, 2009. G:IPlanninglPDREPORTIDirrepa•ts120091DIR-2009-16, Final.Doc Tree Replacements Trunk Diameter No. of Trees to be Removed Replacement Trees Required per Protected Trees Ordinance No. of Replacement Trees Required Replacement Trees Proposed Replacement Type Proposed Up to 12" 31 (1) 24" Box Tree 31 31 24" Type A, B or C Over 12" to 18" 48 (2) 24" Box Trees 96 96 24" Type A, B or C Over 18" to 36" 30 (2) 24" Box or (1) 36" Box Tree 60 65 24" Type A, B or C Over 36" 1 (1) 36" Box Tree 1 8 36" Type D Totals 110 188 200 Type A: Lagerstroemia indica fauriei 'Tuscarora' 24"Box Type B: Platanus x acerifolia 'Yarwood' 24"Box Type C.' Cercis occidentalis 'Forest Pansy' 24"Box Type D: Ginkgo biloba 'Autumn Gold' 36"Box mvv D '" zmm ~~~ ~ fa m ' ~ " G~ ~~ O G'~ ~ ~ CGe Deborah Ellis, MS Consulting Arborist 8~ Horticulturist AR~o~~ST REPOT Apple Complex at Vallco Parkway, Cupertino, California Prepared for: John Noori, Project Manager Kier 8 Wright Civil Engineers & Surveyors, tnc. 3350 Scott Blvd. #22, Santa Clara, CA 95054 Prepared by: Deborah Ellis, MS. Consulting Arborist & Horticulturist Registered Consulting Arborist #305, American Society of Consulting Arborists Board Certified Master Arborist WE-04576, International Society of Arboriculture Certified Professional Horticulturist #30022, American Society for Horticultural Science JUNE 12, 2009 (REVISED FROM MAY 20, 2009) ~N Service since 1984 uavv zmm -r C 1J m ~ ~ ©Copyright Deborah Ellis, 2009. This report may be reproduced in whole or in part by only the client and the client's authorized representatives and only for use with the subject project and/or property. All other reproduction requires the expressed written or verbal consent of Deborah Ellis prior to reproduction. PO Box 3714, Saratoga, CA 95070. Phone Q Fax: 408-725-1357. Email: decahC~pacbell.net. Web site: http://www.decah.com/ Deborah Ellis, MS Consulting Arborist 8 Horticulturist Table of Contents DIRECTOi~°S APPROVAL DATE: SIGNATURE: COMMUNITY DEV. DIR. Service since 1984 SUMMARY ..............................................................................................................................................................................................................................1 Significant Tree Species on this Site :........................................................................................................................................................................................2 Coast redwoods :....................................................................................................................................................................................................................2 Evergreen Ash :........................................................................................................................................................................................................................3 Monterey pine :........................................................................................................................................................................................................................4 Table 1 Tree Removal Summary :..............................................................................................................................................................................................5 RECOMMENDATIONS ..........................................................................................................................................................................................................11 SUPPORTING INFORMATION ...............................................................................................................................................................................................13 Purpose 8~ Use of Report ..........................................................................................................................................................................................................13 Background Information .........................................................................................................................................................................................................13 Methodology ............................................................................................................................................................................................................................13 Observations .............................................................................................................................................................................................................................14 Site Conditions .......................................................................................................................................................................................................................14 APPENDIX ............................................................................................................................................................................................................................15 Table 2 Complete Tree Table ..............................................................................................................................................................................................15 Glossary ......................................................................................................................................................................................................................................35 Protected Tree Photos .............................................................................................................................................................................................................38 Tree Protection Distances ........................................................................................................................................................................................................39 OTPZ (Optimum Tree Protection Zone) ..............................................................................................................................................................................39 3 to 5 X DBH ............................................................................................................................................................................................................................39 Assumptions 8~ Limitations .......................................................................................................................................................................................................40 All photos in this report were taken by D. Ellis on May 15, 2008. PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decahC~pacbell.net. Web site: http://www.decah.com/ Deborah Ellis, MS e~,~~~ L'Y't %w: ~i~,~A3'i.1~E: CC)[~/f Ni t..t I~ I TY ~ ~~. ~ ~ SUMMARY Consulting Arborist & Horticulturist Service since 1984 Please refer to the enclosed Existing Tree Survey (Progress Print June 11, 2009) by Kier 8~ Wright, which shows the numbers and locations of the existing trees on site that are discussed in this report. • A Tree Removal Summary (Table 11 begins on page 5. 108 trees are scheduled for removal. Four of these trees are dead (#717, 739, 783 and 919) and the remainder are within or too close to proposed construction. Many of the trees scheduled for removal due to construction are in only "Fair" to "Poor" condition. • Complete Tree Information (Table 2j providing all information on all trees on site begins on page 15. This table also lists tree root protection distances, which will be helpful during the ongoing design phase of the project, in determining which trees it will be feasible to save. • General Recommendations are provided on page 11. Tree Protection Specifications (a separate document) has also been prepared for this project and is enclosed for those trees that will be saved. There are 380 existing trees on the project site. Three of these trees are protected trees' in the City of Cupertino. These are: #608 coast live oak (8 and 10 inch trunk diameters), #613 valley oak (13 inch) and #615 coast live oak (18 inch). Photos of these trees are on page 38. None of the protected trees are proposed for removal, although valley oak #613 is in poor condition. Because Apple has indicated that it would like to save as many of the existing trees as possible, I have only recommended removal of those trees which are dead, high risk or are in the path of proposed construction as per the June 11, 2009 Existing Tree Survey. The existing buildings on site are to remain as is, with interior improvements. Outside the buildings the parking lots will be reconfigured to bring them up to the current ADA requirements. The proposed parking lot reconfiguration layout was not included on the Existing Tree Survey Plan at the time that this arborist report was completed. Because of this, the expected impact of proposed construction (with the exception of those trees marked with an ~X' for removal by Kier 8~ Wright on this plan due to parking lot renovation) is not included. The tree information presented in this report should however, assist the project designers in parking lot layout and landscaping to preserve existing trees in good condition when it is possible and desirable to save these trees. ~ A "protected tree" in Cupertino is any oak species (Quercus genus) or California buckeye tree (Aesculus californica) with a trunk DBH (diameter at breast height, 4.5 feet above the ground) of 10 inches or greater, or Atlas or deodar cedar trees (Cedrus atlantica or C. deodara) or bigleaf maple (Acer macrophyllum) with a DBH of 12 inches or greater. This information is from the Cupertino City Ordinance, Chapter 14.18. PO Box 3714, Sarntoga, CA 95070. Phone & Fax: 408-725-1357. Email: decah@pacbell.net. Web site: http://www.decah.com/ Pnge 1 of 40 Deborah Ellis, MS Consulting Arborist 8- Horticulturist D4~S~'~7'~R'S APF~~~VAL DATE: SIGNIFICANT TREE SPECIES ON THIS SITE: ~I~NAT~~E: ~QM~ItJNlTv r~EV. DAR, COAST REDWOODS: Service since 1984 There are approximately 125 coast redwood trees planted along the south perimeter of the project site. These redwoods are numbered 663 - 700, 757 - 836 and 939 - 945. These trees are mostly in poor condition; however they provide screening, shade and noise reduction from the adjacent Freeway 280. I would normally recommend removal of trees in such poor condition, but it is my understanding that Apple would like to preserve as many trees on site as possible at this time. The redwoods adjacent to Highway 280 may not receive any irrigation, and this is probably the main factor leading to their poor condition. The vigor of these trees could be improved with regular irrigation. A caveat to remember however that coast redwood is not well adapted to areas away from their native fogbelt environment; and this tree species generally require large amounts of irrigation to do well in inland areas such as Cupertino. In the long term it may be better to remove the redwoods along Freeway 280 and replace them with a tree or large screen shrub species that is drought tolerant and can exist without irrigation after an initial establishment period of 2 to 3 years. There are also some other redwood trees on site that are not planted along the south perimeter -these trees are generally part of the more well maintained landscaping and do receive irrigation. Most of these other redwoods are in good condition and should remain that way as long as they continue to receive adequate irrigation. Left hoto: south erimeter p P redwoods at left lower ortion of cano ies , P p ever reen ash trees in 9 arkin lot lanters at ri ht. p 9 P 9 Ri ht hoto~ u er cano 9 p Pp pY of some of the south erimeter redwoods p indicates that these trees are not in ood condition. 9 PO Box 3714, Sarntogu, CA 95070. Phone & Fnx: 408-725-1357. ~~ Email: decahC~pncbell.net. Web site: http://www.decah.com/ Page 2 of 40 Deborah Ellis, MS Consulting Arborist & Horticulturist L6'6dy~-~y-~~ Y ~J YA'~ alr~°~4.! Vp7i ~/17 L:. SjG ~'~~~ ~ ~: Service since 1984 EVERGREEN ASH: C~~°~~~~,~~~ITY ~~~~ ~,,~ These trees are located in parking lot planters, and they have also been used as the City street trees along Vallco Parkway. Along the Parkway, these trees (planted in too-small cutout planters in the sidewalk) have caused significant pavement damage with their roots. Normally I would recommend the removal of such trees, but I understand that the sidewalk may be re-configured around them, and that Apple would like to save these trees at this time. Because of this I have only recommended removal one of these trees - #717 which is in very poor condition and is high risk. Some of the trees in parking lot planters have also caused quite a bit of pavement damage. One of the evergreen ash trees along Vallco Parkway, causing quite a bit of pavement damage which has been previously repaired. This particular tree (#717) may be failing at the roots and is recommended for removal becnuse it is high risk. On the positive side, the evergreen nsh trees are fast growing, generally have reached a large size on this site and provide a beautiful green canopy and shade. PO Box 3714, Soratogn, CA 95070. Phone d~ Fax: 408-725-1357. Email: decahC~pncbell.net. Web site: http://www.decah.com/ Page 3 of 40 Deborah Ellis, MS ~~~~C7~R~S APPROVAL D~A~"~: SP~i~~TIJR~: MONTEREY PINE: ~~'~~i~'~~''~`~~" pEV. DfR. Consultin Arborist & Horticulturist 9 Service since 1984 This tree species is not a good selection for the area; however most of the Monterey pines on this site are in fair to good condition. These trees are mainly located in perimeter planting areas and may not be impacted by construction. One Monterey pine that is dead and is recommended for removal; this is tree #739. PO Box 3714, Sarotoga, CA 95070. Phone & Fax: 408-725-1357. Email: decahC~pacbell.net. Web site: http://www.decah.com/ Page 4 of 40 Monterey pine #705 nt left is in better condition than #704 at right. These trees are in front of the building off the main entrance at Vnllco Parkway. Deborah Ellis, MS ~~ ~, Table 1 Tree Removal Summary (continued on the next 5 pages) Consulting Arborist 8 Horticulturist ree ~ Corrttlno~ Narrxe ~ D~tl Preservation ,SuiitgbHtfy3 ~ied Constrvctfon lmp iir;e~on ~~ 636 evergreen ash 18 Fair Severe Construction 637 evergreen ash 17 Fair Severe Construction 638 evergreen ash 18 Fair Severe Construction 639 evergreen ash 18 Fair Severe Construction 640 evergreen ash 16 Fair Severe Construction 641 evergreen ash 20 Fair Severe Construction 642 evergreen ash 23 Fair Severe Construction 643 evergreen ash 14 Fair Severe Construction 644 evergreen ash 14 Fair Severe Construction 645 evergreen ash 23 Fair Severe Construction 646 evergreen ash 17 Fair Severe Construction 647 evergreen ash 23 Fair Severe Construction 648 evergreen ash 17 Poor Severe Construction 649 evergreen ash 23 Fair Severe Construction 650 evergreen ash 21 Fair Severe Construction Service since 1984 2 DBH is tree trunk diameter in inches "at breast height", measured at 4.5 feet above ground level. This is the forestry and arboricultural standard measurement height that is also used in many tree-related calculations. For multi-trunk trees, trunk diameter is measured for the largest trunk and estimated for all smaller trunks. A number in parentheses (3) after the trunk diameters) indicates that it was not possible to measure the trunk at 4.5 feet (due to tree architecture) and so the diameter was measured at this alternate height (in feet), which more accurately reflects true trunk diameter near the desired DBH height. s Preservation Suitability is linked to tree "condition", but is not solely dictated by condition. Preservation suitability takes into account the tree species, age, condition and the present or intended use of the site. On most sites, the distribution of trees into "Poor", "Fair" and "Good" preservation suitability categories tends to resemble abell-shaped curve, with the majority of trees falling into the "Fair" category, and fewer trees rated as either "Poor" and "Good". The "Fair" category tends to include trees with a wider range of condition, while the "Poor" category captures the worst trees on site which should absolutely be removed, and the "Good" category captures the very best of the better trees. See also Fi ure 1 on page 10 for a graphic illustration of this concept. PO Box 3714, Saratoga, CA 95070. Phone & Fnx: 408-725-1357. ~, Email: decah@pacbell.net. Web site: http://www.decah.com/ Page 5 of 40 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Tree ' Common Name Trurt D!BH? Preser~rotfon Su#gbil8ys l~[peCted Conatruction:lmpq~# Re~-n ' 651 evergreen ash 26 Fair Severe Construction 652 evergreen ash 27 Fair Severe Construction 653 evergreen ash 14 Fair Severe Construction 654 evergreen ash 14 Fair Severe Construction 655 evergreen ash 20 Fair Severe Construction 659 evergreen ash 20 Fair Severe Construction 660 evergreen ash 20 Fair Severe Construction 661 evergreen ash 16 Fair Severe Construction 662 evergreen ash 17 Fair Severe Construction 717 evergreen ash 19 Poor High Risk 739 Monterey pine 19 None Dead 751 crape myrtle 3 Good Severe Construction 783 redwood 6 None Dead 829 redwood 5 Fair Severe Construction 837 Chinese elm 13 Good Severe Construction 838 Chinese elm 13 Fair Severe Construction 839 Chinese elm 8 Fair Severe Construction 840 Chinese elm 15 Fair Severe Construction 841 Chinese elm 13 Good Severe Construction 842 evergreen ash 21 Fair Severe Construction 843 evergreen ash 15 Fair Severe Construction 844 evergreen ash 24 Fair Severe Construction 845 evergreen ash 16 Fair Severe Construction 846 evergreen ash 21 Fair Severe Construction 847 evergreen ash 19 Fair Severe Construction 848 evergreen ash 15 Fair Severe Construction 849 evergreen ash 17 Fair Severe Construction Service since 1984 PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decnh@pacbell.net. Web site: http://www.decah.com/ Page 6 of 40 Deborah Ellis, MS r Ai:tS l ~.i _ ~. ~~~~ Consulting Arborist 8 Horticulturist ree ~ _.~ ,~ ~ Common Name ~.~._._.~.~_~.~.~.~ _ --___ r ,.. , ~ DBHz ~~:_':~ ~. esenion <Sui#abllitys ~ --. _ ~ -- ~ ~. '~. ~. GonstruGHort lmpa :..aa. . _ .~.. ~ k~ :,~r~val 850 evergreen ash 20 Fair Severe Construction 851 evergreen ash 18 Fair Severe Construction 852 evergreen ash 8 Fair Severe Construction 853 evergreen ash 17 Fair Severe Construction 854 evergreen ash 22 Fair Severe Construction 855 evergreen ash 15 Fair Severe Construction 856 evergreen ash 14 Poor Severe Construction 857 evergreen ash 17 Fair Severe Construction 858 evergreen ash 19 Fair Severe Construction 859 evergreen ash 12 Fair Severe Construction 860 evergreen ash 22 Fair Severe Construction 861 evergreen ash 14 Fair Severe Construction 862 Chinese pistache 6 Good Severe Construction 863 evergreen ash 20 Fair Severe Construction 864 evergreen ash 20 Fair Severe Construction 865 evergreen ash 23 Fair Severe Construction 866 redwood 18 Good Severe Construction 867 redwood 22 Fair Severe Construction 868 redwood 17 Fair Severe Construction 869 evergreen ash 22 Fair Severe Construction 870 evergreen ash 20 Fair Severe Construction 871 evergreen ash 15 Fair Severe Construction 872 Chinese elm 5 Fair Severe Construction 873 Chinese elm 16 Fair Severe Construction 874 Chinese elm 13 Fair Severe Construction 875 Chinese elm 8 Fair Severe Construction 881 Chinese pistache 6 Good Severe Construction PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decah@pacbell.net. Web site: http://www.decah.com/ Service since 1984 Page 7 of 40 Deborah Ellis, MS DIRECTOR'S A~t~R01/AL C.~fivl" ~IONATURE: COMMUNITY DEV. DIR. Service since 1984 Consulting Arborist 8 Horticulturist ee` ,, ~ ~mm+~n Name run Dbhh Preservafton Sultpai Expe~#~t r ~: Conxtru~fior-.t Ike .. ;- #~ ~. 882 redwood 14 Good Severe Construction 883 Monterey pine 17 Poor Severe Construction 884 redwood 11 Good Severe Construction 885 redwood 12 Good Severe Construction 886 redwood 11 Good Severe Construction 887 redwood 10 Good Severe Construction 888 Idaho locust 8 Fair Severe Construction 897 Chinese elm 9 Poor Severe Construction 898 Chinese elm 9 Poor Severe Construction 899 Chinese elm 8 Fair Severe Construction 900 Chinese elm 8 Fair Severe Construction 912 evergreen pear 16 Good Severe Construction 913 purple hopseed bush 4 (3) Poor Severe Construction 914 redwood 24 Good Severe Construction 915 evergreen pear 14 Good Severe Construction 916 redwood 27 Good Severe Construction 917 redwood 25 Good Severe Construction 918 evergreen pear 8, 7 Fair Severe Construction 919 Idaho locust 6 None Severe Dead, Construction 920 Idaho locust 6 Poor Severe Construction 921 Idaho locust 17 Fair Severe Construction 922 southern magnolia 14 Fair Severe Construction 923 evergreen ash 25 Fair Severe Construction 928 Chinese elm 12 Fair Severe Construction 929 Chinese elm 14 Fair Severe Construction 930 Chinese elm 15 Fair Severe Construction 931 Chinese elm 15 Fair Severe Construction PO Box 3714, Sarntogn, CA 95070. Phone & Fax: 408-725-1357. i~ Email: decnh@pacbell.net. Web site: http://www.decah.com/ Page 8 of 40 Deborah Ellis, MS ~.~~"~; Consulting Arborist 8~ Horticulturist SIC~NATUI~~: ~ CdiVINiUNITY QEV~ ®IRn ~ lr~ '~ ~ txwn N ~; i BH. C F~. e~~~o~ SuitQbi~'- , ~ rb t ~~ },~'~ on~~ ~ .,.y r'' + .Y ~ . y,:. ~ ~''~ ~ ~~ . ~ , i ~., ~:e ~' _x~ .~ 4. r ~. 932 Chinese elm 13 Fair Severe Construction 933 Chinese elm 10 Fair Severe Construction 934 Chinese elm 16 Good Severe Construction 935 Chinese elm 5 Fair Severe Construction 936 Chinese elm 16 Fair Severe Construction 937 Chinese elm 7 Fair Severe Construction 938 Chinese elm 14 Fair Severe Construction 946 Monterey pine 15 Poor Severe Construction 947 Monterey pine 14 Poor Severe Construction 949 Monterey pine 16 Fair Severe Construction 951 Monterey pine 17 Poor Severe Construction 984 evergreen ash 5 Fair Severe Construction 983 evergreen ash 5 Fair Severe Construction 108 Trees Scheduled for Removnl Service since 1984 PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decah@pacbell.net. Web site: http://www.decah.com/ Page 9 of 40 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Service since 1984 DIRECTOR'S APPROi/AL DATE; ~' RECOMMENDATIONS siGrv~TURE: 1) Remove the 108 trees listed in Table 1 (Tree Removal Summary). GQ~P11'~. [~IITY pE9l DID 2) Consider removing those trees scheduled to remain that are listed in "Poor" condition. 3) In general, try to keep improvements (and any additional over-excavation or work area beyond the improvement) as far from the trunks of trees to remain as possible. 3xDBH4 should be considered the minimum distance from any disturbance to the tree trunk on one side of the trunk, for root protection. If there will be disturbances on multiple sides of the trunk, then 5xDBH or greater should be used. 4) I should review any future and revised plans, including site layout, grading, utility, construction details and landscaping. These plans were not reviewed for this project, and these additional improvements can impact trees. Continue to work with me as you refine your plans. 5) General Tree Maintenance: a Remove ivy and/or poison oak from root collars and trunks of trees. Cut stems near ground level and paint cut stem end attached to roots with RoundupT"^ herbicide at high dosage rate (for killing brush), or equivalent brush herbicide. Follow manufacturer's label directions exactly. i) Many of the trees on this property, especially those located on slopes, have soil or vegetation covering their root collar and/or lower trunk. Clear soil and from this area for the trees that you plan to save. After this work has been done call me back and have me re-inspect this previously obstructed area. Clear and keep the root collar area "high, dry and visible". b Do no unnecessary pruning, fertilization or other tree work. Pre-construction pruning should be limited to the absolute minimum required for construction clearance. Additional instructions for pruning are included in the Tree Protection Specifications. In general, trees should be pruned as little as possible. The most important post-construction pruning for this project will be the removal of large dead, cracked or hanging branches over target areas. I will advise you more about pruning when the project is completed. a 3xDBH is explained on page 15 (footnote #8) and page 39. s Root collar: junction between trunk and roots. Also called the root flare or root crown of the tree or shrub. The health of this area is critical to whole-tree health and stability. This area often appears as a slightly flared zone at the base of the trunk that includes the origin of the large buttress (main support) roots of the tree or shrub. PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decahC~pacbell.net. Web site: http://www.decah.com/ Pnge 11 of 40 Deborah Ellis, MS DATE: AL ~ Consulting Arborist ~ Horticulturist SIGNATURE: ~ COMMUNITY DEV. DiR. ~ ******************************* Service since 1984 I certify that the information contained in this report is correct to the best of my knowledge, and that this report was prepared in good faith. Thank you for the opportunity to provide service again. Please call me if you have questions or if I can be of further assistance. Sincerely, ~De6oraFi ECCis Deborah Ellis, MS. Consulting Arborist 8~ Horticulturist Certified Professional Horticulturist #30022 ASCA Registered Consulting Arborist #305 I.S.A. Board Certified Master Arborist WE-457B Enclosures: • Existing Tree Survey Plan. Progress Print. Kier 8~ Wright. Sheet C02.02. June 11, 2009. • Tree Protection Specifications for Apple Complex at Vallco Parkway. D. Ellis, May 20, 2009. PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decah@pncbell.net. Web site: http://www.decah.com/ Page 12 of 40 Deborah Ellis, MS Consulting Arborist & Horticulturist SUPPORTING INFORMATION PURPOSE & USE OF REPORT DiRECT'OR'~ A~'f=~0~'AL DATE: Sf~NATURE: CQMMUNITY ®~~i. QfR Seance since 1984 This survey and report was required by the City of Cupertino as a part of the building permit process for this project. The purpose of the report is to identify and describe the tree species on site - -their size, condition and suitability for preservation. Existing trees with trunk diameters over 4 inches at 4.5 feet above the ground are described in detail in this report, although a few smaller trees have been included as well. The audience for this report is the property owner, developer, project engineers, architects and contractors, and City of Cupertino authorities concerned with tree preservation and tree removal. The goal of this report is to preserve existing trees on site that are in good condition, are good species for the area and will fit in well with the proposed new use of the site. BACKGROUND INFORMATION The site is a former Hewlett-Packard office complex. Apple Computer purchased the property and will be renovating it for their own use. Existing building footprints will remain the same but the parking lot and some of the associated landscaping will be renovated; particularly to bring the property up to current ADA requirements. I completed the original Arborist Report for this project on May 20, 2009. Since that time Kier 8~ Wright has finalized its parking lot layout, and identified which trees are within the zone of construction. My original report was therefore revised to include this additional information. METHODOLOGY I evaluated the subject trees for their structural condition (stability) and general health (vigor) by visual assessment briefly from the ground during the week of May 1 1 - 15, 2009. Tree characteristics such as form, weight distribution, foliage color and density, wounds and indicators of decay were noted. Surrounding site conditions were also observed. Evaluation procedures were taken from: Guide for Plant Appraisal, 9th edition, 2000, authored by the Council of Tree and Landscape Appraisers (CTLA) and published by the International Society of Arboriculture (ISA). Species Classification and Group Assignment published by the Western Chapter of the International Society of Arboriculture (WCISA), 1992. PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decah@pacbell.net. Web site: http://www.decah.com/ Pnge 13 of 40 Deborah Ellis, MS ®1R`~TOR`S- APpROV~L DATE: SIGNATURE: COMMUNITY DEV. DIR. Consulting Arborist 8- Horticulturist Service since 1984 • Tree Hazard Evaluation Form taken from Evaluation of Hazard Trees in Urban Areas, 2~d Ed., Matheny 8~ Clark, International Society of Arboriculture, 1994. The above three references serve as industry professional standards for tree and landscape evaluations. Each of the trees was tagged in the field by Kier 8~ Wright with metal number tags that correspond with the tree numbers referenced in this report and on the Tree Map. I measured the trunk diameter of each tree with a diameter tape at 4.5 feet above the ground (DBH), which is also used for tree protection distance and many other tree-related calculations. Trunk diameter was rounded to the nearest inch. I estimated the tree's height and canopy spread. Tree Condition (structure and vigor) was evaluated and I also recorded additional notes for trees when significant. Tree species and condition considered in combination with the current or (if the site will be developed) the proposed use of the site yields the Tree Preservation Suitability rating. The more significant trees (or groups of trees) were photographed with a digital camera. Some of these photos are included in this report, but all photos are available from me by email if requested. A complete set of construction plans (including proposed new landscaping) were not available at the time that this report was prepared. My evaluation and recommendations therefore, are based upon the site "as is" plus the tree removals required for parking tot construction indicated by Kier 8~ Wright. Review of additional plans such as grading and utilities, site layout, construction and landscaping will likely necessitate the removal of additional trees -and this report should again be revised after I review those plans OBSERVATIONS SITE CONDITIONS There are several existing large office buildings and smaller accessory buildings on site, along with parking lots, a landscaped courtyard and typical office complex landscaping for the area. Site topography is mainly level. Most landscaped areas are irrigated with automatic sprinkler systems. Vegetation is mostly non-native planted landscaping, although there may be a few trees (the "protected trees" native oaks #608, 613 and 615) that existed on the site prior to development and were not planted. Sun exposure for the trees varies from full to partly shaded, depending upon proximity to existing buildings and to other trees. Tree and landscape condition in general is fair to good and was well maintained while the buildings on site were occupied, with the exception of the south perimeter redwoods. PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. I, Email: decnh@pacbell.net. Web site: http://www.decnh.com/ Page 14 of 40 Deborah Ellis, MS Consulting Arborist 8 Horticulturist APPENDIX COMPLETE TREE TABLE y~ ~` ~ r Ct~'1U~MU~6kT~ C~~~. ~~R. Service since 1984 Table 2 (continued on the next several pages) Underlined terms are explained in the Glossary beginning on page 35. * indicates tree species native to the Cupertino area. + indicates "protected tree" T ;a~~ >~ . ~ " ~ TruNc ~ QNRin©N' ~ Pr s~v~i4ra ~ f~cp~+ct ~ _ - T~~ P;,~~t~~ - w* -,~~'~ ~ rte. ~, .. 1 ~ i `~ } , izeb . 1 {a f ~ ons~'u Action ~ season ~ ~ _ : ~ ~ ~- J ... ~ Mme(, .. 1Y ri Mi/jH ~~ _ ~ i. ,a ' 601 Lagerstroemia 3 16x8 70 60 Fair Save 2 1 1 indica, crape myrtle 602 Robinia 8 25x20 40 40 Poor Save 6 3 2 pseudoacacia 'Idahoensis', Idaho locust 603 Pinus radiata, 30 (4) 50x30 80 50 Fair Save 30 12 7 Monterey pine b Size: tree size is height x width in feet, estimated and approximate. Condition Rating: Trees are rated for condition on a scale of zero to 100 with zero being a dead tree and 100 being the most perfect tree imaginable (which rarely exists). Using this scale, 100 =excellent, 80 =good, 60 =fair, 40 =poor, and 20 =unacceptable. There are two components of tree condition - Vigorand Structure. Each of these components is rated separately and then considered relative to the tree species, age and use of the site to obtain the Preservation Suitability Rating (i.e. "Is this tree worth keeping on this site?"). a Tree Protection Zones: (for root system protection). Distances in feet from edge of tree trunk to nearest excavation for an improvement. OTPZ =Optimum Tree Protection Zone (optimum distance, often unachievable). 5 and 3xDBH =Five and Three times DBH. 3xDBH is the minimum distance to any excavation on one side of the tree; 5xDBH is for multiple excavations on more than one side of the tree. See page 39 for a more detailed explanation of these distances and the reasoning behind them. PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decah@pacbell.net. Web site: http://www.decah.com/ Page 15 of 40 Deborah Ellis, MS ~°~~~~°¢~~~~~ ~i~~~~~~`- ~ Consulting Arborist 8~ Horticulturist ~~~}a ~ :.._. .~ ~ ~~~~i~1~ITY D~~l. ®li~. Service since 1984 tie Species ~. Trun~C ~ CONDITION? ts~rv4flon Expect,Qd ,:, . TR~ti ~QI~,C~1Q~N ~ ~° ,~ ~ ,: ~ Camman DBH Size ~ _ . _. _R,..~ t S l# bliitl Cs~nstructio Action Reoz'~ ~~~ _ , u a y ~.~: ~ Ndnte s~tttct.,~re .. _ impact #T~' J ~ . 604 Monterey pine 12, 10 35x18 40 40 Poor Save 13 7 4 605 Monterey pine 20 (4) 40x30 70 60 Fair Save 20 8 5 606 Fraxinus uhdei, 16 50x25 50 50 Poor Save 8 7 4 Pavement damage. evergreen ash Girdlina roots at root collar (cut) 607 evergreen ash 15 35x25 80 70 Good Save 8 6 4 Girdling roots at root collar (cut) 608 Quercus 8, 10 30x20 75 60 Fair Save 7 6 4 Cut girdling root at root agrifolia, collar. coast live oak 609 Monterey pine 23 (3) 30x30 75 70 Fair Save 23 9 6 610 Monterey pine 23 40x30 70 80 Fair Save 23 10 6 611 Monterey pine 13 30x20 60 60 Fair Save 10 5 3 612 Monterey pine 31 (2.5) 45x40 70 50 Fair Save 31 13 8 Near-co-dominant trunks with included bark. Pavement damage. 613 Quercus 13 35x30 50 50 Poor Save 10 5 3 Lots of twig dieback. lobata, valley oak 614 evergreen ash 14 45x30 60 60 Fair Save 7 6 4 615 coast live oak 18 (3) 30x40 60 50 Fair Save 13 7 4 616 evergreen ash 13 30x20 60 50 Fair Save 7 5 3 617 Monterey pine 16 30x25 60 60 Fair Save 12 7 4 Lots of Sequoia pitch moth sap blobs and sap streaming down trunk (looks like pitch canker disease, but is only pitch moth) 618 evergreen ash 14 35x20 50 40 Poor Save 7 6 4 PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decahC~pacbell.net. Web site: http://www.decah.com/ Page 16 of 40 Deborah Ellis, MS C` ~a •,Ta i~ ~ .r..,_ ~eU~iifii~il~~l~ii 9 i !J~ V. D~~. Consulting Arborist 8 Horticulturist Service since 1984 .~r Trunk ~ CON~~I/~f H~ re'~.~i1~il~1J~ } ' ',~ ~~ .~-~~ ~~W~`.~i~ V" i ~.- y'~~ r , ~U11+111a~4~ ' DBH ~iz~~ _;.. .y .~ _ .,. . 4 r.~K~i A~i [ll7fl ~ - _ ma ~~. .,f t ' ~ ~__ _ ~. _ NQ~r1e _ ry- .._ :.. - -- - ._... _. fir., ~~ Impact ~° •~5asA- , ~' ~ ~ ~ti~w_-~3s' 619 evergreen ash 22 50x40 60 50 Fair Save 17 9 6 620 evergreen ash 17 30x30 85 60 Fair Save 9 7 4 621 evergreen 30 50x40 85 50 Fair Save 30 13 8 pear 622 evergreen ash 18 30x20 100 70 Good Save 14 8 5 623 evergreen ash 14 40x25 60 60 Fair Save 7 6 4 624 evergreen ash 1 1 40x25 60 60 Fair Save 6 S 3 625 evergreen ash 1 1 30x20 80 60 Fair Save 6 5 3 626 Monterey pine 24 45x40 50 70 Fair Save 24 10 6 627 Monterey pine 26 60x40 75 75 Fair Save 26 1 1 7 Copious pitch moth pitch exudation 628 Monterey pine 12 35x20 30 20 Poor Save 9 5 3 629 Prunus 9, 6 18x22 90 70 Good Save 12 5 3 cerasifera Krauter Vesuvius', purpleleaf plum 630 Gledifsia 12 28x35 60 60 Fair Save 12 5 3 friacanfhos inermis, Honeylocust 631 purpleleaf 12 (2.5) 25x20 40 40 Poor Save 12 5 3 plum 632 Monterey pine 19 35x30 80 70 Fair Save 14 8 5 633 Aesculus 5 10x18 60 40 Fair Save 4 2 1 Suppressed underneath californica, adjacent Monterey pine Calif. buckeye 634 Sequoia 6, 8 25x15 50 50 Poor Save 6 5 3 8-inch trunk is on the other PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decahC~pacbell.net. Web site: http://www.decah.com/ Page 17 of 40 Deborah Ellis, MS ®IC1T ~ : -- ~- S1Ca6~RT~RE: CG~v1[V4U[~{TY D~~• ®IRe Consulting Arborist 8 Horticulturist Service since 1984 ~r Species >~. ~ommon ~ : 1Ervnk a 8 H lze~ C~NDmoN~ ...~.:..~ ___,_~;. __~ Pr a#to~ e~ , _ S lt :Expected . n uctia - . , Actlpn , _ , Rea#oe~ _ 1'A>kff ~`R4T1•t~N" ~~r~~~ :~- ~r~ ~ .` ~ _,{ x , , , , Name tur o ~ Impact ~, - H~ ~ sempervirens, Coast redwood (redwood) side of the fence (property line) 635 Quercus kelloggii, black oak 4 (4) 16x12 50 40 Poor Save 3 2 1 Suppressed understory tree 636 evergreen ash 18 45x40 90 40 Fair Severe Remove Construction 14 8 5 637 evergreen ash 17 45x30 60 40 Fair Severe Remove Construction 9 7 4 Cracked branch over parking lot. 638 evergreen ash 18 40x40 70 50 Fair Severe Remove Construction 14 8 5 639 evergreen ash 18 45x30 80 60 Fair Severe Remove Construction 14 8 5 640 evergreen ash 16 45x25 50 40 Fair Severe Remove Construction 8 7 4 641 evergreen ash 20 45x40 90 50 Fair Severe Remove Construction 15 8 5 642 evergreen ash 23 45x30 80 50 Fair Severe Remove Construction 17 10 6 643 evergreen ash 14 35x25 60 50 Fair Severe Remove Construction 7 6 4 644 evergreen ash 14 40x30 60 60 Fair Severe Remove Construction 7 6 4 Minor pavement damage. 645 evergreen ash 23 40x30 90 60 Fair Severe Remove Construction 17 10 6 Minor pavement damage. 646 evergreen ash 17 30x25 70 70 Fair Severe Remove Construction 9 7 4 Major pavement damage. 647 evergreen ash 23 35x35 80 50 Fair Severe Remove Construction 17 10 6 Minor pavement damage. 648 evergreen ash 17 25x20 50 50 Poor Severe Remove Construction 9 7 4 Branch dieback. 649 evergreen ash 23 45x30 85 60 Fair Severe Remove Construction 17 10 6 Minor pavement damage. 650 evergreen ash 21 45x40 90 60 Fair Severe Remove Construction 21 9 5 Minor pavement damage. 651 evergreen ash 26 45x35 75 60 Fair Severe Remove Construction 20 11 7 652 evergreen ash 27 50x40 80 60 Fair Severe Remove Construction 27 11 7 Minor pavement damage. 653 evergreen ash 14 22x20 70 50 Fair Severe Remove Construction 7 6 4 654 evergreen ash 14 30x25 85 50 Fair Severe Remove Construction 7 6 4 655 evergreen ash 20 40x30 70 60 Fair Severe Remove Construction 15 8 5 PO Box 3714, Saratoga, CA 95070. Phone & Fnx: 408-725-1357. Email: decah@pacbell.net. Web site: http://www.decah.com/ Page 18 of 40 Deborah Ellis, MS Consulting Arborist 8~ Horticulturist Service since 1984 ETr _ ~~ ~` GomrYw~ Trunk D H She' ~QNDtTiQN' _ eserv+A~#o. Suif+a ' Expected Qnshucfiion Actin lion u ~~ - ~~~ .~ ~ ~ r: ~. } ~ I._- .~~~_ Name ~ _~._ d . _ _ ~1~~1'~ _.._ _. ,~,, -~~ -- impact ~~ _ ~_ _ t.~~ -~. _ w.~; 656 redwood 14 45x20 60 60 Fair Save 7 6 4 657 redwood 18 50x18 60 60 Fair Save 14 8 5 658 redwood 15 40x18 70 70 Good Save 8 6 4 659 evergreen ash 20 50x40 90 50 Fair Severe Remove Construction 15 8 5 660 evergreen ash 20 50x35 90 50 Fair Severe Remove Construction 15 8 5 Moderate pavement damage. 661 evergreen ash 16 40x30 60 40 Fair Severe Remove Construction 8 7 4 662 evergreen ash 17 40x30 75 50 Fair Severe Remove Construction 9 7 4 663 redwood 22 50x20 30 30 Poor Save 17 9 6 Leans to east 664 redwood 19 45x25 40 40 Poor Save 14 8 5 665 redwood 7 25x10. 50 40 Poor Save 4 3 2 666 redwood 14 40x16 30 30 Poor Save 7 6 4 667 redwood 12 35x18 30 30 Poor Save 6 5 3 668 redwood 16 40x18 40 40 Poor Save 8 7 4 669 redwood 11 45x18 50 50 Poor Save 6 5 3 670 redwood 24 60x25 40 40 Poor Save 18 10 6 671 redwood 12 40x18 50 50 Poor Save 6 5 3 672 redwood 19 40x18 60 40 Poor Save 14 8 5 673 redwood 13 40x16 50 50 Poor Save 7 5 3 674 redwood 17 60x20 50 50 Poor Save 9 7 4 675 redwood 22 60x22 30 40 Poor Save 17 9 6 676 redwood 10 25x15 30 30 Poor Save 5 4 3 677 redwood 10 22x15 40 30 Poor Save 5 4 3 678 redwood 21 50x22 50 40 Poor Save 16 9 5 Co-dominant trunk at 15 feet. 679 redwood 20 45x25 60 40 Poor Save 15 8 5 Flat top (lost leader) 680 redwood 10 30x15 50 40 Poor Save 5 4 3 PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decah@pacbell.net. Web site: http://www.decah.com/ Page 19 of 40 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Service since 1984 . ~ . 5pe~cl~s ~ Common TruMc t?Bli S>fzeb C©NDITIQN7 _ _:. ~ . ., , '~~ Expected gnstru4tion Action f~ it~4~'R{3.'I~Q1~ ~ ~ ~~~. ~ r °'~-`~ Ji, , Name y ImpcCt ,r r °'`' 681 redwood 20 60x20 40 50 Poor Save 15 8 5 682 redwood 12 35x12 40 30 Poor Save 6 5 3 683 redwood 6,6,5,4 25x18 50 30 Poor Save 7 6 4 684 redwood 16 45x18 30 40 Poor Save 8 7 4 685 redwood 22 60x20 50 50 Poor Save 17 9 6 686 redwood 15 55x20 40 30 Poor Save 8 6 4 Double trunk at 7 feet. 687 redwood 4 25x12 40 50 Poor Save 2 2 1 688 redwood 8 30x10 30 30 Poor Save 4 3 2 689 redwood 5 30x8 30 30 Poor Save 3 2 1 690 redwood 14 40x18 30 40 Poor Save 7 6 4 691 redwood 10 30x12 50 40 Poor Save 5 4 3 692 redwood 21 50x25 40 30 Poor Save 16 9 5 693 redwood 26 70x25 40 50 Poor Save 20 11 7 694 redwood 18 50x20 60 50 Fair Save 14 8 5 695 redwood 14 35x18 40 20 Poor Save 7 6 4 696 redwood 12, 8 40x20 40 40 Poor Save 8 7 4 Stump sprout with 12 inches between trunks. 697 redwood 18 45x25 60 60 Fair Save 14 8 5 698 redwood 9 30x16 40 40 Poor Save 5 4 2 699 redwood 13 40x20 40 30 Poor Save 7 5 3 Co-dominant trunk at 8 feet. 700 redwood 14 35x18 40 50 Poor Save 7 6 4 701 evergreen ash 23 (4) 40x40 85 70 Good Save 17 10 6 702 evergreen ash 22 (4) 40x30 85 50 Fair Save 22 9 5 Cracked 8-inch diameter over street (remove branch at point of attachment to trunk) PO Box 3714, Snratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decahC~pncbell.net. Web site: http://www.decah.com/ Pnge 20 of 40 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Service since 1984 ~rr~ ~ nn~- •~ ~ ~ ~ ~ f^- Sized eca~om~a>K~ ~r -~ r~ n`_L^~ 7~~~(~]-. ,~IH Ij~ '*~~ ~~}i1y~~/} ~~+~RV?~ iS ~-_ ~~~ ~~ ; .~u` { Q ~,~ax r ~' F ~ ~ i' 1,,. Y~,{ 3` ~~ ~ ~~ 5 r,~ .. ..yam ~~f~"P ..z.. r_:.,. _..L_.. ~.v..,»w._.: ~. _ ~. __~_... _. :~.. _...,.: .. i ",..: _~:. 2 ~ ~_,,: .t[[_...k~~~_ i, a,: ~ ~~l~~L~t ~_: ~.. - . .ice r 'n L' .-.....~G.'i:,"' ~ ~ ~ Y~ L ~}~ - ..~t_n~._._.r.rbtr+fT~ 703 crape myrtle 5 18x12 80 80 Good Save 3 2 1 704 Monterey pine 21 45x35 80 80 Good Save 21 9 5 705 Monterey pine 21 40x25 70 60 Fair Save 21 9 5 706 evergreen ash 18 40x30 75 40 Fair Save 14 8 5 707 Monterey pine 20 50x30 70 50 Fair Save 20 8 5 708 Monterey pine 21 50x40 75 70 Fair Save 21 9 5 709 evergreen ash 18 35x45 80 50 Fair Save 14 8 5 Pavement damage 710 evergreen ash 32 60x45 75 50 Fair Save 24 13 8 Pavement damage 711 evergreen ash 22 50x40 40 40 Poor Save 17 9 6 Pavement damage 712 evergreen ash 14 40x30 60 50 Fair Save 7 6 4 713 evergreen ash 24 50x30 75 40 Fair Save 18 10 6 Pavement damage 714 evergreen ash 19 60x30 75 50 Fair Save 14 8 5 Pavement damage 715 Monterey pine 24 60x40 75 75 Fair Save 24 10 6 716 evergreen ash 16 40x25 50 40 Poor Save 8 7 4 Pavement damage. Significant car crash wound lower trunk. 717 evergreen ash 19 50x30 85 20 Poor Remove High Risk 14 8 5 This tree is causing massive sidewalk upheaving but there is something else to be concerned about -- the entire tree is leaning and the roots appear to have cracked a previously repaired concrete ramp patch. The tree may be failing from the roots. The tree will fall onto the sidewalk/street to the west. 718 Monterey pine 22 50x35 70 50 Fair Save 22 9 6 'i PO Box 3714, Sarntoga, CA 95070. Phone & Fax: 408-725-1357. Email: decah@pacbell.net. Web site: http://www.decah.com/ Pnge 21 of 40 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Service since 1984 Tr Sp~Ci~ ~+~ ilk ~ C4NQI11 ~~ ~tertl ~ ~ ~~,4' I}' ~''~ `f~' ~~ { ~, I ~ :;~. ~ H, ~ r 2 .~~-.~.~, ~' ~~n - Ski _ C.s~nstru,~fion A~ciHan ~ ~ ; z .~ -• ~_]~ .'~._ 11!`.ca 1...`L au.1.Y'1.~~ ~ ~ 5 `rasa [~4 •~ 719 evergreen ash 16 50x30 50 50 Poor Save 8 7 4 Pavement damage 720 Monterey pine 25 50x40 75 60 Fair Save 25 10 6 721 Monterey pine 31 (2) 40x25 70 50 Fair Save 31 13 8 722 evergreen ash 15 50x30 70 40 Fair Save 8 6 4 Pavement damage 723 evergreen ash 16 50x20 70 50 Fair Save 8 7 4 Pavement damage 724 Monterey pine 31 (4) 50x30 70 50 Fair Save 31 13 8 725 redwood 22 45x25 85 80 Good Save 17 9 6 726 redwood 20 45x25 70 75 Good Save 15 8 5 727 purpleleaf 10 (2) 18x18 40 40 Poor Save 10 4 2 plum 728 Pyrus 14 30x40 50 50 Poor Save 14 6 4 kawakami, evergreen pear 729 Acer 4, 4, 3, 3, 2 20x20 80 70 Good Save 5 4 3 Good specimen of palmatum, transplantable size Japanese maple 730 evergreen 9 15x20 60 50 Fair Save 7 4 2 Evergreen pears 730, 731 pear and 732 were planted as "triple", and their root collars are 8 to 12 inches apart. Each tree leans away from the other trees (they were planted this way, as an artistic effect), and so if any one tree is removed the adjacent remaining pear tree(s) are going to look odd and/or PO Box 3714, Snratogn, CA 95070. Phone & Fax: 408-725-1357. Email: decah@pacbell.net. Web site: http://www.decah.com/ Pnge 22 of 40 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Service since 1984 Tree Common Truk Q8H 'S~e~ COND1TlON ~... :, _..~;:.:~~,7y rv o ~ ~ tta S t l onstru~tio Acf~~- Reason 'TiCEE, TEC~#QH ~ ~~3~ ,,,'~`~r ~ ; . ~ ~ Name b ~ u y Im ct r - :, ~ ~[.~t~ ... ~~_ ..:r.:~. may become unstable (edge effect). Save all or none 731 evergreen pear 11 16x25 75 50 Fair Save 8 5 3 Same as pear #730 732 evergreen pear 10 18x25 70 50 Fair Save 8 4 3 Same as pear #730 733 redwood 28 60x25 75 75 Good Save 21 12 7 734 redwood 25 60x30 75 70 Good Save 19 10 6 735 Japanese maple 2,2,2,2,1,1,1,1 1 bxl 8 60 70 Fair Save 4 3 2 736 Idaho locust 7 22x15 50 20 Poor Save 5 3 2 737 purpleleaf plum 8, 6, 5, 4 22x25 50 50 Poor Save 8 3 2 738 purpleleaf plum 6, 8, 4,3, 3 22x25 100 50 Fair Save 16 7 4 739 Monterey pine 19 40x30 0 0 None Remove Dead 19 8 5 740 Monterey pine 10 35x12 60 50 Fair Save 8 4 3 741 Monterey pine 22 60x35 70 75 Fair Save 22 9 6 742 Monterey pine 19 50x20 70 50 Fair Save 19 8 5 Pitch canker strikes 743 Monterey pine 18 50x20 80 60 Fair Save 18 8 5 744 Monterey pine 31 70x50 80 60 Fair Save 31 13 8 745 Monterey pine 19 (4) 30x20 80 50 Fair Save 19 8 5 746 Monterey pine 22 50x40 75 60 Fair Save 22 9 6 747 Monterey pine 21 60x30 75 60 Fair Save 21 9 5 748 Monterey pine 10 22x18 40 50 Poor Save 8 4 3 749 Monterey pine 17 40x18 75 60 Fair Save 13 7 4 750 Monterey pine 13 28x18 60 40 Fair Save 10 5 3 PO Box 3714, Snratogn, CA 95070. Phone & Fax: 408-725-1357. Email: decahC~pacbell.net. Web site: http://www.decah.com/ Page 23 of 40 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Sertnce since 1984 .Tr ~ .. Sp~l~s ~ C.~tmon ~ BH Size+ 7 ~t~NQITI4N ....,.....~ r. L.,.a~...~. _ ~io~t blpt 'Expecfied ~-nstrilctio~ Ac#ion Reason . TIti:E PR4TECT14N , ~, ,: ~~~rb~'cta ~ ..~~., w~,~ ~ ~ °' t ~~ „.,:r _." :Name _ _. __ - _.. _ _ _ . Y ~? y .,_... _ Im ct R~ _~.$~._ ,~ . 1 `~~ 751 crape myrtle 3 15x8 80 70 Good Severe Remove Construction 2 1 1 752 Picea pungens ~Glauca', Colorado blue spruce 7 30x18 80 80 Good Save 5 3 2 753 crape myrtle 2 10x6 70 60 Fair Save 1 1 1 754 crape myrtle 4 16x10 80 60 Fair Save 2 2 1 755 crape myrtle 3 12x5 70 60 Fair Save 2 1 1 756 crape myrtle 3 16x9 70 50 Fair Save 2 1 1 757 redwood 14 40x20 40 30 Poor Save 7 6 4 758 redwood 15 40x18 40 40 Poor Save 8 6 4 759 redwood 12 35x12 30 30 Poor Save 6 5 3 760 redwood 14 45x18 40 40 Poor Save 7 6 4 761 redwood 11 35x16 60 40 Poor Save 6 5 3 762 redwood 18 50x18 60 40 Poor Save 14 8 5 763 redwood 4 15x9 40 40 Poor Save 2 2 1 764 redwood 6 16x9 40 50 Poor Save 3 3 2 765 redwood 15 40x16 40 40 Poor Save 8 6 4 766 redwood 14 40x18 60 50 Fair Save 7 6 4 767 redwood 14 45x18 40 30 Poor Save 7 6 4 768 redwood 15 45x22 50 40 Poor Save 8 6 4 769 redwood 14 35x18 30 30 Poor Save 7 6 4 Co-dominant trunk at 7 ft. with included bark. 770 redwood 13 50x20 30 40 Poor Save 7 5 3 771 redwood 14 40x18 50 40 Poor Save 7 6 4 772 redwood 11 35x18 40 40 Poor Save 6 5 3 PO Box 3714, Saratoga, CA 95070. Phone & Fnx: 408-725-1357. Email: decahC~pacbell.net. Web site: http://www.decah.com/ Page 24 of 40 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Service since 1984 s~~ a Common rrunlr cQNanoN~ - ~ ~~~ I~P~ted Construction - ActiGn Rea~~i litt~r~tl~noN ^ ~ :~~ . ~ - " °= ~ ~' -Name DSH Suit~b ~ Impp et ' $ w,~ ~,~ r 773 redwood 12 20x10 40 40 Poor Save 6 5 3 774 redwood 14 30x15 50 50 Poor Save 7 6 4 775 redwood 13 35x9 50 40 Poor Save 7 5 3 776 redwood 20 45x18 50 40 Poor Save 15 8 5 777 redwood 10 40x15 20 20 Poor Save 5 4 3 778 redwood 24 40x18 40 40 Poor Save 18 10 6 779 redwood 15 20x20 60 50 Fair Save 8 6 4 780 redwood 9 25x12 40 40 Poor Save 5 4 2 781 redwood 8 20x6 50 40 Poor Save 4 3 2 782 redwood 26 45x20 40 50 Poor Save 20 11 7 783 redwood 6 20x10 0 0 None Remove Dead 3 3 2 784 redwood 21 40x18 50 50 Poor Save 16 9 5 785 redwood 12 30x9 50 40 Poor Save 6 5 3 786 redwood 16 25x18 50 40 Poor Save 8 7 4 787 redwood 18 45x20 60 50 Fair Save 14 8 5 788 redwood 3 16x10 70 60 Fair Save 2 1 1 789 redwood 13 25x18 50 40 Poor Save 7 5 3 790 redwood 18 50x18 50 30 Poor Save 14 8 5 791 redwood 18 50x20 50 50 Poor Save 14 8 5 792 redwood 18 30x20 40 30 Poor Save 14 8 5 793 redwood 14 35x16 50 60 Fair Save 7 6 4 794 redwood 15 45x20 50 60 Fair Save 8 6 4 795 redwood 20 35x20 50 20 Poor Save 15 8 5 Suckers obscure lower trunk 796 redwood 8 30x8 20 20 Poor Save 4 3 2 797 redwood 24 50x20 60 60 Fair Save 18 10 6 798 redwood 3, 4, 3, 3 25x15 60 40 Poor Save 5 4 2 Stump sprout PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decah@pacbell.net. Web site: http://www.decnh.com/ Page 25 of 40 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Service since 1984 r Spades ~. Common Trunk B Size-6 CONDITI4N~ _ -- - I?reservq#t~rt ilt bl~t S ', Fxpeeted , Co~sifniction ,Action, ii:~,~n . TREE ~R4t`E~Tt~3t~t ~.~~~_ ~ _ w` ~ ~. ~ `• Name ~ p H ~ y u a impact .~ .r. _: , ~ {:. ,, ... . 799 redwood 18 25x18 50 40 Poor Save 14 8 5 800 redwood 23 60x20 50 40 Poor Save 17 10 6 801 redwood 12 30x12 50 50 Poor Save 6 5 3 802 redwood 5 16x8 50 50 Poor Save 3 2 1 803 redwood 15 35x16 40 40 Poor Save 8 6 4 804 redwood 3 16x8 40 40 Poor Save 2 1 1 805 redwood 30 60x30 50 50 Poor Save 23 13 8 806 redwood 14 40x18 50 50 Poor Save 7 6 4 807 redwood 11 20x9 40 30 Poor Save 6 5 3 808 redwood 15 40x12 40 30 Poor Save 8 6 4 809 redwood 19 40x18 40 30 Poor Save 14 8 5 810 redwood 16 40x12 20 20 Poor Save 8 7 4 811 redwood 15 50x12 20 20 Poor Save 8 6 4 812 redwood 16 50x20 40 40 Poor Save 8 7 4 813 redwood 14 35x15 40 40 Poor Save 7 6 4 814 redwood 20 50x20 50 40 Poor Save 15 8 5 815 redwood 20 60x15 40 40 Poor Save 15 8 5 816 redwood 23 60x18 50 40 Poor Save 17 10 6 817 redwood 22 60x20 40 40 Poor Save 17 9 6 818 redwood 12 40x12 50 50 Poor Save 6 5 3 819 redwood 24 60x20 50 50 Poor Save 18 10 6 820 redwood 25 60x25 40 40 Poor Save 19 10 6 821 redwood 18 50x20 50 40 Poor Save 14 8 5 822 redwood 19 50x16 50 50 Poor Save 14 8 5 823 redwood 20 60x20 60 60 Fair Save 15 8 5 824 redwood 20 55x20 60 60 Fair Save 15 8 5 PO Box 3714, Saratoga, CA 95070. Phone ~ Fax: 408-725-1357. Email: decnhC~pacbell.net. Web site: http://www.decah.com/ Page 26 of 40 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Service since 1984 ~ S ies b ommon B ~' >~e' cowalls~N~ - ~ f ~ blliit cfied - s~nstruotion °- : Actio~t = - ~ Retxson _ TR ~ P~QY~CTtoN _ ~` .~...,.~..; ~s,~ ,-~ ,~~ ` iJ ' ~ ~~' . Name H >~~ u~h~IC Su b X Impact _ ~...~=~~~,~. 825 redwood 16 60x16 50 50 Poor Save 8 7 4 826 redwood 18 60x20 60 60 Fair Save 14 8 5 827 redwood 23 60x20 60 60 Fair Save 17 10 6 828 redwood 20 55x20 60 60 Fair Save 15 8 5 829 redwood 5 20x12 70 50 Fair Severe Remove Construction 3 2 1 830 redwood 34 70x30 60 60 Fair Save 26 14 9 831 redwood 14 50x18 40 50 Poor Save 7 6 4 832 Ulmus parvifolia, Chinese elm 12 40x25 60 40 Fair Save 9 5 3 Leans over fence to North. 833 redwood 14 50x16 40 40 Poor Save 7 6 4 834 redwood 6 25x6 20 20 Poor Save 3 3 2 835 redwood 28 70x25 60 60 Fair Save 21 12 7 836 redwood 19 50x20 70 60 Fair Save 14 8 5 837 Chinese elm 13 40x50 80 70 Good Severe Remove Construction 10 5 3 Leans to south. Grove- affected. 838 Chinese elm 13 45x50 70 70 Fair Severe Remove Construction 10 5 3 839 Chinese elm 8 20x25 60 40 Fair Severe Remove Construction 4 3 2 Grove with 840. 840 Chinese elm 15 35x50 60 60 Fair Severe Remove Construction 11 6 4 841 Chinese elm 13 30x45 85 70 Good Severe Remove Construction 10 5 3 842 evergreen ash 21 50x40 90 60 Fair Severe Remove Construction 16 9 5 843 evergreen ash 15 45x40 60 60 Fair Severe Remove Construction 8 6 4 844 evergreen ash 24 60x50 85 60 Fair Severe Remove Construction 18 10 6 845 evergreen ash 16 50x30 70 50 Fair Severe Remove Construction 8 7 4 846 evergreen ash 21 60x40 80 60 Fair Severe Remove Construction 16 9 5 847 evergreen ash 19 40x35 90 60 Fair Severe Remove Construction 14 8 5 848 evergreen ash 15 40x25 80 50 Fair Severe Remove Construction 8 6 4 Scaffold branch wounds PO Box 3714, Saratogn, CA 95070. Phone & Fax: 408-725-1357. Email: decnh@pacbell.net. Web site: http://www.decah.com/ Page 27 of 40 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Service since 1984 I~r Sptc-es ~ '£ommcn Trunk Slze~ C~NQITIAN7 ,~~.~.:u.; - - Pre t~ ; >:xpected onstructton ' Action 9~n T ~~~TI~Q~V _ ~ . ~L~~~ ~,~ ~~ ,~- '~ ~ Name D>aN Suiitab Impact. ~ j t: (from tall trucks) west side. 849 evergreen ash 17 50x30 70 60 Fair Severe Remove Construction 9 7 4 850 evergreen ash 20 50x30 70 50 Fair Severe Remove Construction 15 8 5 851 evergreen ash 18 45x25 90 60 Fair Severe Remove Construction 14 8 5 852 evergreen ash 8 20x18 70 50 Fair Severe Remove Construction 4 3 2 853 evergreen ash 17 45x30 90 60 Fair Severe Remove Construction 9 7 4 854 evergreen ash 22 50x40 70 50 Fair Severe Remove Construction 17 9 6 Dead branches upper canopy 855 evergreen ash 15 40x30 80 50 Fair Severe Remove Construction 8 6 4 856 evergreen ash 14 40x25 50 50 Poor Severe Remove Construction 7 6 4 Dead branches 857 evergreen ash 17 28x20 75 60 Fair Severe Remove Construction 9 7 4 858 evergreen ash 19 40x30 80 60 Fair Severe Remove Construction 14 8 5 859 evergreen ash 12 22x20 80 60 Fair Severe Remove Construction 6 5 3 860 evergreen ash 22 50x40 80 50 Fair Severe Remove Construction 17 9 6 Moderate pavement damage 861 evergreen ash 14 45x25 70 50 Fair Severe Remove Construction 7 6 4 862 Pistacia chinensis, Chinese pistache 6 18x18.. 80 70 Good Severe Remove Construction 3 3 2 863 evergreen ash 20 45x45 75 50 Fair Severe Remove Construction 15 8 5 864 evergreen ash 20 50x40 70 60 Fair Severe Remove Construction 15 8 5 865 evergreen ash 23 50x40 60 60 Fair Severe Remove Construction 17 10 6 866 redwood 18 45x20 80 80 Good Severe Remove Construction 14 8 5 867 redwood 22 45x20 60 60 Fair Severe Remove Construction 17 9 6 Some dead branches near to p 868 redwood 17 45x20 60 70 Fair Severe Remove Construction 9 7 4 869 evergreen ash 22 45x45 90 60 Fair Severe Remove Construction 17 9 6 Major pavement damage PO Box 3714, Saratogn, CA 95070. Phone ~ Fax: 408-725-1357. Email: decnhC~pacbell.net. Web site: http://www.decah.com/ Page 28 of 40 Deborah Ellis, MS Consulting Arborist 8~ Horticulturist Service since 1984 ~ ....species >~ Common rtmk B ize' ~ _ CQ1+IQt1<lG1N ~.. -...-..:~._W ._ eservpflon t S Expected .... _ onsfivctl;c:tt .c#kut t~eason TRE.~ P~ATECtIIoN ...r~)A~ .~...~ _:: ~~ _~~ _ ~.3 ~ ~ ~~ ~ _ Name _- F~ IU - - _ _. _ __ . ~~~ ue y :::__ .__ r ~ mP~t ~~ ~~° :_1_~ ~~# 870 evergreen ash 20 40x30 60 50 Fair Severe Remove Construction 15 8 5 Moderate pavement damage 871 evergreen ash 15 35x30 80 50 Fair Severe Remove Construction 8 6 4 Strange looking ash; looks kind of like an English walnut. 872 Chinese elm 5 18x16 60 50 Fair Severe Remove Construction 3 2 1 873 Chinese elm 16 45x50 80 60 Fair Severe Remove Construction 12 7 4 874 Chinese elm 13 30x35 70 40 Fair Severe Remove Construction 10 5 3 875 Chinese elm 8 22x20 80 40 Fair Severe Remove Construction 4 3 2 876 Monterey pine 16 35x20 80 60 Fair Save 12 7 4 877 Monterey pine 22 50x30 80 70 Fair Save 22 9 6 878 Monterey pine 18 50x30 70 60 Fair Save 18 8 5 879 Monterey pine 24 50x30 80 50 Fair Save 24 10 6 Large vigorous vertical branch. 881 Chinese pistache 6 20x20 90 60 Good Remove 3 3 2 882 redwood 14 50x20 90 80 Good Remove 7 6 4 883 Monterey pine 17 50x20 10 10 Poor Severe Remove Construction 13 7 4 884 redwood 11 40x16 100 90 Good Severe Remove Construction 6 5 3 885 redwood 12 40x16 100 80 Good Severe Remove Construction 6 5 3 886 redwood 11 40x16 100 80 Good Severe Remove Construction 6 5 3 887 redwood 10 40x16 100 80 Good Severe Remove Construction 5 4 3 888 Idaho locust 8 40x20 80 50 Fair Severe Remove Construction 6 3 2 Bark cracks on trunk 889 Idaho locust 7 40x20 70 20 Poor Save 5 3 2 Split co-dominant crotch 890 Idaho locust 9 40x20 70 40 Fair Save 7 4 2 891 Idaho locust 8 40x20 50 50 Poor Save 6 3 2 Significant trunk cracks. 892 Idaho locust 6 40x18 50 50 Poor Save 5 3 2 Small cracks on trunk. PO Box 3714, Snratogn, CA 95070. Phone & Fax: 408-725-1357. Email: decah@pacbell.net. Web site: http://www.decah.com/ Page 29 of 40 Deborah Ellis, MS Consulting Arborist & Horticulturist Service since 1984 ~Tr ~~ ~ T"rT ~` _Gommcm - ru ~ ~ ~ze4 >~a3~t7rlii N~` Q Pr ,~~ esgrv ii S ~ ~ ec ed Cansttvctlon Action li;e~son ~ .~~T ` ~, ~ ~>y _~ ~ ~ tel.. ~ .~~ ,~~ ~.`'~ ~ , 1 ~ _~..~_ ;Name , _~._. _ _ ._. _. ~ DpH .... ~:_._ _,_~~ ,.. _:_ v. .. ~a u ,:_ ~. _ ,. _ _ Impacf .. .. ,_ ~_,. ~ , X~ ~'` - ~.~ .~: 893 redwood 14 35x18 90 90 Good Save 7 6 4 894 redwood 12 40x18 90 80 Good Save 6 5 3 895 >~ 926 Idaho locust 14 40x35 80 60 Fair Save 14 6 4 2 Tags (895 and 926) 896 Magnolia grandiflora, southern magnolia 10 25x25 60 60 Fair Save 10 4 3 897 Chinese elm 9 20x25 50 50 Poor Severe Remove Construction 5 4 2 Dead branches, chlorotic 898 Chinese elm 9 30x30 50 50 Poor Severe Remove Construction 5 4 2 Dead branches, chlorotic 899 Chinese elm 8 20x25 60 50 Fair Severe Remove Construction 4 3 2 Some dead branches 900 Chinese elm 8 30x25 80 60 Fair Severe Remove Construction 4 3 2 901 redwood 11 35x15 80 80 Good Save 6 5 3 902 redwood 11 35x15 90 90 Good Save 6 5 3 903 redwood 21 50x20 70 80 Good Save 16 9 5 904 redwood 19 50x20 70 70 Good Save 14 8 5 905 redwood 8 35x10 60 60 Fair Save 4 3 2 906 redwood 21 50x20 70 60 Good Save 16 9 5 907 redwood 18 50x20 70 70 Good Save 14 8 5 Animal burrow underneath root collar. 908 redwood 22 50x20 75 75 Good Save 17 9 6 909 evergreen pear 12 20x25 70 70 Fair Save 12 5 3 910 evergreen pear 13 20x30 70 70 Fair Save 13 5 3 911 evergreen pear 8 28x75 50 40 Poor Save 6 3 2 Dead branches PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decnh@pncbell.net. Web site: http://www.decah.com/ Page 30 of 40 Deborah Ellis, MS Consulting Arborist 8~ Horticulturist Service since 1984 T Species a Truk C4NDITIQN' lFacpected " T PRQ7'~:~#Q~t r~~.~~~~' ~~ t,~ Common ~ RBN Stzeb -- _ ...._ ~ Canlstruction Action l~~asorrF Dist ~; - 7 ~` }ad `M . 1 ,, ,~ ~ : Name ~~ impact t~~ ~ -~:~ w, 912 evergreen 16 28x35 80 70 Good Severe Remove Construction 16 7 4 pear 913 Dodonea 4 (3) 20x10 50 40 Poor Severe Remove Construction 5 2 1 Overgrown shrub viscosa ~Purpurea', purple hopseed bush 914 redwood 24 50x20 80 80 Good Severe Remove Construction 18 10 6 915 evergreen 14 35x30 85 70 Good Severe Remove Construction 14 6 4 pear 916 redwood 27 60x30 80 80 Good Severe Remove Construction 20 1 1 7 917 redwood 25 60x30 80 70 Good Severe Remove Construction 19 10 6 918 evergreen 8, 7 20x18 60 50 Fair Severe Remove Construction 9 5 3 Leans pear 919 Idaho locust 6 22x18 0 0 None Severe Remove Dead, 5 3 2 Construction 920 Idaho locust 6 20x18 20 20 Poor Severe Remove Construction 5 3 2 921 Idaho locust 17 50x40 75 60 Fair Severe Remove Construction 17 7 4 922 southern 14 40x40 70 60 Fair Severe Remove Construction 14 6 4 magnolia 923 evergreen ash 25 50x40 90 50 Fair Severe Remove Construction 19 10 6 924 evergreen ash 27 50x50 90 60 Fair Save 20 1 1 7 925 evergreen ash 30 50x40 70 50 Fair Save 23 13 8 926 Idaho locust 14 40x35 80 60 Fair Save 14 6 4 2 Tags (895 and 926) 8~ 895 927 No tree #VALUE! #VALUE! 928 Chinese elm 12 40x30 80 60 Fair Severe Remove Construction 9 5 3 929 Chinese elm 14 40x50 80 60 Fair Severe Remove Construction 11 6 4 PO Box 3714, Saratoga, CA 95070. Phone & Fnx: 408-725-1357. Email: decahC~pncbell.net. Web site: http://www.decnh.com/ Page 31 of 40 Deborah Ellis, MS Consulting Arborist 8- Horticulturist Service since 1984 ~.~ ~A ~ ~omm~ lErunk Stze* coaam4>~l _ -- a~ ..,.... ~ ,. ~ss~rca#lon 4N ~~d CQttstcuECtton , 'A ~~ ~~~~ ~ k r ~ ~' ~~~"` _ ~ _ _ -Name _ - DBH _ . . ---.._ _ _ . fur tY #~ ifrr~pact ~ _ _~~' it r~ . 930 Chinese elm 15 25x40 100 50 Fair Severe Remove Construction 11 6 4 Several dead branches 931 Chinese elm 15 30x45 90 50 Fair Severe Remove Construction 11 6 4 932 Chinese elm 13 30x40 90 60 Fair Severe Remove Construction 10 5 3 933 Chinese elm 10 20x30 70 60 Fair Severe Remove Construction 5 4 3 934 Chinese elm 16 35x50 80 70 Good Severe Remove Construction 12 7 4 935 Chinese elm 5 18x16 70 50 Fair Severe Remove Construction 3 2 1 936 Chinese elm 16 35x45 60 60 Fair Severe Remove Construction 12 7 4 937 Chinese elm 7 20x25 80 50 Fair Severe Remove Construction 4 3 2 938 Chinese elm 14 30x45 50 60 Fair Severe Remove Construction 11 6 4 939 redwood 22 60x25 60 50 Fair Save 17 9 6 940 redwood 10 40x15 50 50 Poor Save 5 4 3 941 redwood 23 60x20 50 50 Poor Save 17 10 6 942 redwood 23 60x20 60 60 Fair Save 17 10 6 943 redwood 28 65x'ZO 60 60 Fair Save 21 12 7 944 redwood 31 60xZ0 60 60 Fair Save 23 13 8 945 redwood 28 60x20 60 60 Fair Save 21 12 7 946 Monterey pine 15 50x20 60 40 Poor Severe Remove Construction 11 6 4 947 Monterey pine 14 50x20 70 40 Poor Severe Remove Construction 11 6 4 948 Monterey pine 13 50x20 50 40 Poor Save 10 5 3 949 Monterey pine 16 50x25 70 60 Fair Severe Remove Construction 12 7 4 950 Chinese elm 10 35x30 80 60 Fair Save 5 4 3 951 Monterey pine 17 60x25 75 40 Poor Severe Remove Construction 13 7 4 952 Chinese elm 2 12x8 50 50 Poor Save 1 1 1 953 Chinese elm 3 18x12 80 50 Fair Save 2 1 1 954 Chinese elm 11 30x30 80 60 Fair Save 6 5 3 955 Monterey pine 24 60x40 75 70 Fair Save 24 10 6 A few dead branches. PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decnhC~pacbell.net. Web site: http://www.decah.com/ Page 32 of 40 Deborah Ellis, MS Consulting Arborist & Horticulturist Service since 1984 `Tr ~ ~ ~cmnmon :Trunk S Tl N7 ~ANQt Q ~ , _.._ . ~ ,~. ~ W~ ,Pte # ~Pected ~~4-n ACtiq~i ~;; `fR1rE PiR4~CTi+fJJN -.:. ~ ~ ~~~ ~ ° ~ ~~ ~r - ~ ~^x~ ~r~~ ~ ~.< DBM uitab~ l~r S r - - - 956 Monterey pine 30 (3) 55x40 60 50 Fair Save 30 12 7 Sap streaming down trunk looks like pitch canker disease trunk canker 957 Chinese elm 11 30x40 90 50 Fair Save 6 5 3 958 Chinese elm 14 40x35 90 50 Fair Save 11 6 4 959 Chinese elm 12 35x40 90 60 Fair Save 9 5 3 960 Chinese elm 12 30x40 90 50 Fair Save 9 5 3 961 Chinese elm 13 40x40 90 60 Fair Save 10 5 3 962 Chinese elm 2 12x10 70 50 Fair Save 1 1 1 963 Chinese elm 10 30x40 90 50 Fair Save 5 4 3 964 Chinese elm 12 30x40 90 60 Fair Save 9 5 3 965 Chinese elm 10 30x40 90 50 Fair Save 5 4 3 966 Chinese elm 11 35x40 90 60 Fair Save 6 5 3 967 Chinese elm 6 20x18 90 50 Fair Save 3 3 2 968 Monterey pine 13 30x20 70 50 Fair Save 10 5 3 Lots of car wounds upper trunk 8~ scaffold to west. 969 Chinese elm 14 40x40 75 60 Fair Save 1 1 6 4 970 Chinese elm 13 40x40 85 60 Fair Save 10 5 3 971 Chinese elm 13 30x35 80 60 Fair Save 10 5 3 972 Chinese elm 13 25x25 80 50 Fair Save 10 5 3 973 Monterey pine 19 50x40 60 50 Fair Save 19 8 5 974 Monterey pine 15 40x25 70 60 Fair Save 11 6 4 975 Chinese elm 8 20x28 40 50 Poor Save 4 3 2 976 Chinese elm 8 (4) 22x28 40 50 Poor Save 4 3 2 977 Chinese elm 3 15x18 75 60 Fair Save 2 1 1 978 Nerium oleander, 5, 4,4,4,2 18x20 90 40 Fair Save 9 5 3 Leaning bush somewhat trained as tree. PO Box 3714, Saratogn, CA 95070. Phone & Fax: 408-725-1357. Email: decnhC~pacbell.net. Web site: http://www.decah.com/ Page 33 of 40 Deborah Ellis, MS Consulting Arborist & Horticulturist Service since 1984 ~1 ~~ ` "'{2'~. ~ ~ ;~ ~ i .s,.~~ ~}. ~ „ v Illt~ S~e~s i~hV~il~~~~1st~ L~~.. :~:., a. R ~ . ~` ~. rr ~ArY .'. Qt~g~ruCiteo~ r` A~iiQtl. J' h -~. ~ } 7~,~„~C~';~`i ,~ ~ tY ~ ~ L.. '[.. _ u~ `~ ~~ ~ . ._ 1 a ~~pQ,~.1 r . ~ .+~ , oleander 979 Callistemon 5 16x10 90 60 Fair Save 5 2 1 citrinus, Lemon bottlebrush (bottlebrush) 980 bottlebrush 5 15x18 90 60 Fair Save 5 2 1 981 bottlebrush 4 (4) 12x10 80 50 Fair Save 4 2 1 Leans 982 bottlebrush 4 16x10 70 60 Fair Save 4 2 1 983 evergreen ash 5 35x15 70 70 Fair Severe Remove 3 2 1 Kier/Wright did not tag in field; DE tagged w/ round tag. 984 evergreen ash 5 30x15 60 60 Fair Severe Remove 3 2 1 Same as above 985 redwood 10 40x12 50 50 Poor Save 5 4 3 Same as above PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decnh@pacbell.net. Web site: http://www.decah.com/ Page 34 of 40 Deborah Ellis, MS Consulting Arborist ~ Horticulturist Service since 1984 GLOSSARY 1) Chlorotic: a plant symptom of discolored (yellowish) plant tissue that should (usually) be green in color. The loss of green color is due to the destruction of the green pigment chlorophyll, which can be due to many causes. 2) Co-dominant refers to two leaders, branches or trunks that arise at the same point on a tree and are about the same diameter. This is an undesirable structural defect that is a weak point in the tree. Co-dominant stems typically lack the overlapping tissue present in a branch or trunk collar, which may be why trees with this defect split so easily. It is best that branches or trunks originate with space between them, or if they arise at the same point that they be of different sizes. Co-dominant leaders can often be corrected (one leader removed) when trees are young. When trees are older it is often better to subdue the smaller or more undesirable member by thinning the terminal'/z of the foliage by 25~ to slow its growth and ultimate size relative to the other member. 3) Dieback: the abnormal and premature death of branches, usually in the upper or more terminal portions of a tree or woody plant. Generally the smaller diameter branches die first, and the dieback may extend downward and/or to larger branches. Branch dieback is generally a symptom of stress some underlying problem with the plant, such as root disease or an unfavorable environment. 4) Girdling roots encircle the trunk of the tree at or close to the ground, and may inhibit the flow of water and nutrients by "choking" vascular elements in the trunk or other roots. Girdling roots can also cause whole-tree failures at the root collar. Circling roots are encircling a portion of a trunk or root, but haven't started to compress it yet. It sometimes takes many years, or even decades for girdling roots to grow to the point where the tree becomes symptomatic or dies. Circling or girdling roots can often be cut and removed when they are small and before they become fused or grafted with the tissues that they are compressing beneath them. When girdling roots become large and fused however, it will often do more damage to the tree to try to remove the root. Fused roots that cannot be removed can sometimes be severed or partially severed to kill them or at least slow their growth. 5) Grove: is a group of trees that located close together that shelter each other from wind and the elements, having "knit" canopies. If of the same species, there is usually root grafting between trees, which lends support from the ground, as well as water and mineral sharing. Removal of one or some grove members could cause remaining members to be unstable due to a reduction of previous shelter. Grove trees often have asymmetrical canopies when viewed as individuals. 6) Included bark is bark sandwiched between adjacent branches, a branch and the trunk, or two or more trunks, often appearing as a seam. In contrast, a normal attachment will have a ridge of bark protruding upwards and a continuous wood connection between adjacent members. As branches or trunks with included bark grow, they expand in diameter, squeezing the bark along the seam. This may kill some portion of the included bark. When this occurs, a wound response is initiated. As a consequence, cracks can be generated, leading to breakage. Such defects can often be completely removed when a tree is young (e.g. the offending members equal or less than 2 inches in diameter). Older, larger cuts (such as 6 inches in diameter or more) could cause decay to spread into the remaining member, which is undesirable. In these cases it may be best to thin one member (usually the smaller member) by 25% to slow its growth and ultimate size. PO Box 3714, Snrntogn, CA 95070. Phone & Fax: 408-725-1357. Email: decnh@pacbell.net. Web site: http://www.decah.com/ Page 35 of 40 Deborah Ellis, MS Consulting Arborist S Horticulturist Service since 1984 7) Leader: the primary terminal shoot or trunk of a tree. On an excurrent (conical-shaped) tree there is normally a single central dominant leader. 8) Pine Pitch Canker is a sometimes lethal airborne fungal disease of primarily Monterey and some other pine species. As of 2008 however, the most susceptible Monterey pines have already been killed in areas where the disease has become established, such as Monterey. In these areas, the more resistant pines remain and many of the infected pines show only scattered branch tip or whole branch dieback. This disease has killed Monterey pine trees throughout much of the state of California, including the pine's preferred habitat of the coastal fogbelt (such as Monterey). Branch and trunk cankers (lesions) produce pitch. Branches and the entire tree can eventually die. No cure at this time although management (primarily resistant cultivars) is being researched. The insect, Sequoia pitch moth produces isolated strikes that exude pitch. This innocuous insect is often confused with Pitch Canker. The symptoms of pitch canker however, are dead branches with clinging needles predominately in the upper 2/3 of the crown and trunk cankers that exude much pitch. Infected branches are girdled at the infection site and the tissues in this area are resin soaked. Branch and twig infections may also be pitchy. The best management at this time is to remove infected branches cutting well below infected area (eradicative pruning is only effective on isolated infections in isolated diseased trees). Disinfect tools with Lysol spray or alcohol. Spores can be spread in pitch. Fungus is spread by insects, particularly cone-boring beetles. Keep trees thrifty to make them less attractive to insects. Do not fertilize trees. Current information on Pitch Canker can be found on the web at: http://frap.cdf.ca.qov//pitch canker/. 9) Scaffold branch: a primary structural branch arising from the trunk of a tree. Usually the largest and often the lowest branches of the tree. 10) Sequoia pitch moth is an insect that is a particular problem on Monterey pines in the San Francisco Bay Area. The larvae of this insect bore a short distance into the wood of the tree, making a small cavity. Resin then leaks out of these wounds. The damage the insect causes is primarily cosmetic (sap blobs), and sometimes a nuisance (dripping sap). Chemical control attempts have not been successful. When practical, pitch masses can be scraped off with a knife, and the larvae beneath can be killed. The moth stage of the insect is particularly attracted to pruning wounds, and likes to lay eggs there. The best control therefore is minimizing wounds, particularly pruning wounds, and restricting pruning from mid-October through January. 11) Stump sprout trees are the result of a tree trunk being cut down to a short stump close to the ground. If the tree survives, it sends out many small shoots (suckers) from around the cut stump. Some of these suckers may survive and grow to become significant trunks. These trunks are spaced very close together and usually have included bark between them, which reduces the strength of their union. Such trunks are prone to failure. Stump sprout trees can be very structurally unsound, particularly as they become large and old. There is often a great deal of decay associated with the mother stump, which can also reduce mechanical stability. 12) Suckers are secondary upright shoots arising from the roots or root collar (junction between roots and trunk) of a tree, or below the graft union. On a grafted tree the suckers (originating from the stock), are often not the same type of plant as the scion (the grafted, desirable aboveground part). Suckers can be a nuisance in landscape situations. In nature however, suckers can serve to keep a tree alive after fire or mechanical damage that kills or removes the aboveground part of the tree. 13) Vigorous vertical branches can obtain large diameter and be prone to failure, or they can compete with the main leader of the tree. This t e of branch is common in atlas, deodar and incense cedars. Vi orous verticals seem to be more common in trees that are PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decahC~pacbell.net. Web site: http://www.decah.com/ Page 36 of 40 Deborah Ellis, MS Consulting Arborist ~ Horticulturist i Service since 1984 overpruned. Vertically oriented branches tend to grow faster than more horizontal branches and they can become too large in diameter for their height in the tree -they can also compete with the main leader of a tree. The reason for this is that vertical branches are by nature more vigorous than horizontal branches. It is often helpful to correct this habit when a tree is young; by removing the vertical branches. When the tree is older and the removal of a large vertical branch is undesirable, it may best to thin it by 25%, primarily at the terminal end, in order to slow its growth and dominance, or subordinate prune the vertical branch by reducing its length, cutting down to a lower lateral branch. Chinese elms along the Northwest perimeter of the site. PO Box 3714, Sorntoga, CA 95070. Phone & Fax: 408-725-1357. Email: decah@pacbell.net. Web site: http://www.decah.com/ Page 37 of 4 Deborah Ellis, MS Consultin Arborist & Horticulturist 9 i Service since 1984 PROTECTED TREE PHOTOS .~~~ . ~`y~ ! f .~, ~', r r + ., ~ . t ~ i, ~x ~ ~ ~}., ~ h : ,~,~. P,~ ;) ~' +~ ~ 4L ~ ~ r -. ; ~,~ a~~n' ~' ~ j:. ~ . .[ 4: ~ "` F t M y ~. ~ r „ , r . tt ~,y :1~p~~ ,.1~ < 9F ~ t ':r t)~t ~~ .j d k, ~~ . %, .~ ~, b t ~1 A~ • X14 1~ Y' ,. ~ j } ~. . ~ ~. ` , `. •rf a ~ ~ f :~~ ~~- ,~ . ~, `r Y ' ~ 'yF~° ea; ~: ~f _`" ~. t~ ~_ e ~~ 1 ~ r ~ µ ,4 L ~f .l. { ~e ` 1 Jlfi. ~1 .~« 1 ~~1~_ A; !¢" ! ~} «,th aai~ a n ~.. k 'A 3 '~ l #608, coast live oak, 8 & 10 inch trunk diameter. These three trees are nll along the enst perimeter of the site, closer to Vallco Parkway. #613, volley onk,13 inch trunk diameter. #615, coast live oak, 18 inch trunk diameter. PO Box 3714, Snrntogu, CA 95070. Phone & Fax: 408-725-1357. Email: decahC~pncbell.net. Web site: http://www.decnh.com/ Page 38 of q Deborah Ellis, MS Consulting Arborist 8 Horticulturis TREE PROTECTION DISTANCES OTPZ (OPTIMUM TREE PROTECTION ZONE) t Sertnce since 1984 OTPZ s the distance in feet from the trunk of the tree, all around the tree, that construction or other disturbance should not encroach within. If this zone is respected, then chances of the tree surviving construction disturbance are very good. Although there are no scientifically based methods to determine the minimum distance for construction (for example, root severance) from trees to assure their survival and stability, there are some guidelines that are often used in the arboricultural industry. The most current guideline comes from the text, Trees & Development, Mitheny et il., International Society of Arboriculture, 1998. The tree protection zone calculation method in this text was used to obtain the OTPZ"s provided in this report. Because it may not be possible to maintain the ORTZ distance recommended for many of the trees, I have also listed alternate distances of 3 and 5X DBH (see paragraph below. 3T05X DBH These are reasonable "'rule of thumb" absolute minimum distances that any excavation should be from the trunk (Smiley, Friedrich, & Hendrickson ZOOZ. Bartlett Tree Research Laboratories. DBH is "diameter at breast height", or 4.5 feet above the ground. I hive found Chit for the urban trees I hive worked with, it tends to correlate reasonably well with the Zone of Rapid Taper, which is the zone in which the large buttress (mien support roots) rapidly decrease in diameter with increasing distance from the trunk. This zone is usually one to three meters from the trunk, but it varies depending upon tree species, age and soil and other environmental conditions. Using the 3X DBH guideline, in excavation should be no closer than 4.5 feet from the trunk of in 18-inch DBH tree. This distance is i guideline only, and should be increased for trees with heavy canopies, decay, structural problems, etc. The 3X DBH may be more of an aid in preserving tree stability and not necessarily long-term tree health, as the roots beyond the zone of rapid taper form in extensive network of long, rope-like roots one to two inches in diameter. These woody perennial roots ire referred to as transport roots because they function primarily to transport water and minerals. Few large literal roots ire found beyond 10 feet of the trunk, in most situations. 5X DBH is the "'preferred" minimum distance which should be strived for however, because even a few feet may mike a big difference in tree survivill PO Box 3714, Saratoga, CA 95070. Phone & Fax: 408-725-1357. Email: decahC~pacbell.net. Web site: http://www.decah.com/ Page 39 of 40 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Service since 1984 ASSUMPTIONS & LIMITATIONS 1) I have reviewed the following plans for this project: i) Existing Tree Survey Plan. Sheets 1, 2, 3 and 4. Kier & Wright, May 2009. ii) Ibid. Sheet C02.02. June 1 1, 2009. 2) Tree locations were provided by Kier 8~ Wright and are shown on the Tree Survey Plan (attachment) for this report. 3) Many trees had their root collars and or lower trunks covered with soil, vegetation or debris and were obstructed from view when I conducted my tree evaluation. The obstructions should be removed and I should then be called back to re-examine these previously covered areas. 4) The measures noted within this report are designed to assist in the protection and preservation of the trees mentioned herein, should some or all of those trees remain, and to help in their short and long term health and longevity. This is not however; a guarantee that any of these trees may not suddenly or eventually decline, fail, or die, for whatever reason. Because a significant portion of a tree's roots are usually far beyond its dri line9, even trees that are well protected during construction often decline, fail or die. Because there may be hidden defects within the root system, trunk or branches of trees, it is possible that trees with no obvious defects can be subject to failure without warning. The current state of arboricultural science does not guarantee the accurate detection and prediction of tree defects and the risks associated with trees. There will always be some level of risk associated with trees, particularly large trees. It is impossible to guarantee the safety of any tree. 5) Unless expressed otherwise: i) Information contained in this report covers only those items that were examined and reflects the condition of those items at the time of inspection ii) The inspection is limited to visual examination of accessible items without dissection, excavation, probing or coring. There is no warranty or guarantee, expressed or implied, that problems or deficiencies of the plants or property in question may not arise in the future. 9 Drigline: the area under the total branch spread of the tree, all around the tree. Although tree roots may extend out 2 to 3 times the radius of the dripline, a great concentration of active roots is often in the soil directly beneath this area. PO Box 3714, Snratogn, CA 95070. Phone & Fax: 408-725-1357. Email: decahC~pacbell.net. Web site: http://www.decah.com/ Page 40 of 40 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Service since 1984 TREE PROTECTION SPECIFICATIONS PROJECT: Apple Complex at Vallco, Cupertino DATE: May 20, 2009 ©Deborah Ellis 2009 Please see the Tree Survey Plan by Kier & Wright for the location of the numbered trees. 1) GENERAL: a For Background Information on the Trees see my Arborist Report of May 20, 2009. b These Tree Protection Specifications Apply To Anv Existing Tree On Site That Will Not Be Removed And Will Be Within Or Near Anv Area Where Demo Or Construction Will Occur. This includes any tree that is not located in an area that is completely fenced off from construction with a perimeter construction fence. If any portion of the canopy of a tree outside the construction zone overhangs a perimeter construction fence, these specifications shall apply to such trees as well. The consulting arborist for this proiect is Deborah Ellis, who wrote these specifications. The proiect consulting arborist (or proiect arborist) for this proiect may be Deborah Ellis or another arborist pre-approved by Deborah Ellis. The project consulting arborist will be in charge of tree protection site inspections and other arborist services on an as needed basis for the duration of the project. The project arborist must be either an International Society of Arboriculture (ISA) Board-Certified Master Arborist or an American Society of Consulting Arborists (ASCA) Registered Consulting Arborist. The general contractor or owner should arrange to hire laborers who's specific iob it will be to carry out the tree protection work; for example installing (and moving if necessary) tree protection fencing, obtaining and spreading mulch, watering trees, etc. Qualified tree services (recommended by the project arborist) can do some of this work such as watering trees (e.g. waterjet irrigation), and other specialized tasks such as pruning. This recommendation is designed to avoid the problem of not having the labor to do tree protection tasks as written in these Specifications and also any additional work requested by the project arborist. e Unexpected conditions occur and changes are necessary on all construction protects. Such situations may necessitate that changes or modifications be made to these Tree Protection Specifications. Any concerns or conflicts with these Specifications should be brought to the attention of the project arborist immediately so that alternate methods may be agreed upon. 2) DESIGN: a Design The Site 8~ Improvements so as to Stay as Far Away From Existing Tree Trunks and Canopies as Possible. Use the least-damaging improvements possible when PO Box 3714, Sarntoga, CA 95050. Phone & Fax: 408-725-1357. Email: decahC~pacbell.net. Web site: http://www.decah.com/ Page 1 of 8 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Service since 1984 working near trees, for example pathways constructed on existing grade with little or no excavation and comprised of porous material such as gold fines or curbs on top of pavement with no additional footing. Alterations of natural grade must ensure that water drains away rather than toward tree trunks. b AnV New Landscaping should be compatible with existing trees. Refrain from rototilling within tree driplines. Any planting within this area should be done by hand. Plants and new irrigation including irrigation trenching are best kept 5 to 10 feet away from the trunks of existing trees (or 3 x DBH, whichever is greater), depending upon the size and type of tree, and the environmental conditions. Farther is better. Some trees should have no planting or irrigation in their vicinity, for example California native oaks. Refrain from making any major changes to the present landscape environment, as large mature trees often cannot adapt so such changes and may decline and die over time because of them. Contact Deborah Ellis for assistance in the landscape design phase if necessary. For this particular project, leaving as much of the existing native vegetation in place is preferable, augmenting only slightly if at all with complimentary native plantings. Underground utilities: Deborah Ellis has not reviewed the utility plans. Every attempt should be made to keep underground utility lines outside tree protection zones. If any utility lines will pass through tree protection zones, Deborah Ellis or the project consulting arborist must review these plans and prescribe any mitigation procedures that will reduce damage to trees such as tunneling below or between roots to remain, air spade' excavation of trenches, hand digging or a combination of such methods. It utilities must pass through tree protection zones, the project arborist must be on site to supervise this work and assist in dealing with roots. Abandoned pipes and utilities should be cut at existing grade and not pulled out, if their removal would damage tree roots. d Construction Vehicle Access: There should be a defined route for construction vehicles and large equipment, in order to reduce damage to trees and other vegetation. Clearly show and label the construction vehicle route on the Tree Protection Plan as well as grading and other applicable construction plans. Preferably there should be one entrance and one exit to the site. e Designated Storage 8~ Parking Areas: There must be designated storage and parking areas on site, away from protected trees. Such areas must be shown on the Tree Protection Plan as well as grading and other applicable construction plans. f The existing trees that will be retained on the proiect site must be shown and numbered (with the tree numbers used in the arborist report for this proiect) on all applicable ' Air spade: a commercial grade, hand-held metal probe attached to a large air compressor by a hose. This equipment is specialized, industrial equipment that is intended for use by trained professionals. Pressurized air is discharged from the tip of the probe. The air is used to excavate soil away from items such as tree roots, or to dig trenches or remove soil with minimal damage to tree roots (compared to traditional soil removal methods). Information for horticultural uses of the air spade is available at on line at: htto://www.air- soade.com/market arboriculture.html. Pre-irrigation to soften the soil a few days before is recommended, and is often done by the company that is providing the service. In addition it is also helpful to use a pickaxe to loosen very hard surface soil before and often during the use of an air spade. Air spade works is somewhat expensive, but it may be economical if a root collar or other excavation is extensive, difficult, the tree species is very sensitive to root damage, if many roots must be exposed, the undersides of roots must be exposed, or multiple excavations will occur. You may contact me for referrals to companies that provide this service. PO Box 3714, Snrntoga, CA 95050. Phone ~ Fax: 408-725-1357. Email: decahC~pacbell.net. Web site: http://www.decah.com/ Page 2 of 8 Deborah Ellis, MS Consulting Arborist ~ Horticulturist Service since 1984 construction plans such as the general site plan, demo plan, grading/drainage/utility plan, landscape and irrigation plans. Tree Protection Fencing locations for the trees must be included and called out on these plans as well. g These specifications must be included in their entirety on a separate, dedicated plan sheet in the general plans. The plan sheet shall be entitled EXISTING TREE PROTECTION PLAN. 3) PRE-DEMOLITION/CONSTRUCTION: a Pre-Demolition/Construction Meeting at the site shall be conducted with the project arborist, the developer, and the general contractor. The general contractor is responsible to see that these tree protection specifications are implemented and that all people working at the site are aware and adhere to these specifications. A copy of these Specifications is to remain and be accessible at the site at all times. Additional meetings on site with workers may be necessary and should be organized with the project arborist. b Irrigation. Make sure that any trees that will be near construction or demo disturbance are well hydrated before any demo or construction work begins. Irrigate the trees if necessary approximately 2 weeks before any work will begin if the soil is not moist to at least 12 inches below the surface. This will help the trees go into the project strong and not drought-stressed, so they will be better able to weather any damage they may experience. The frequency and amount of water will depend upon the weather, the damage to the tree, and the soil moisture status. The project arborist can provide directions for irrigation depending upon tree condition just prior to construction, site conditions, weather and other factors. Be prepared to supply the trees with non- recycled water from a water truck at least several times per week during the normally rainless months, as well as if there is insufficient rain during the normal wet season. c Pruning for Clearance. Pruning prior to construction should be as little as possible, and only what is required for demo and construction clearance. Branches that must be shortened should be cut back to appropriately sized lateral branches whenever possible, and not to stubs. Aesthetic pruning can be done later, if necessary. Use a qualified tree service with an ISA Certified Arborist on staff, in a supervisory position for the work, and pre-approved by the project arborist. The tree pruner shall follow the most current version of the arboriculture industry standards: i) Best Management Practices, Tree Pruning. 2008. International Society of Arboriculture, PO Box 3129, Champaign, IL 61826-3129. 217-355-9411. ii) ANSI 21331 American National Standards for Tree Care Operations. 2006 Edition. Secretariat: National Arborist Association, Inc. American National Standards Institute, 11 West 42nd St., New York, New York, 10036. (Covers safety). iii) ANSI A300 Pruning Standards. 2008 Edition. Ibid. (Covers tree care methodology). If urgent pruning is necessary for immediate construction clearance this may be done by the general or demo contractor. I this case a short stub should be left which can be removed by a qualified tree service at a later time. Please consult with the project arborist prior to such pruning. PO Box 3714, Saratoga, CA 95050. Phone & Fnx: 408-725-1357. Emnil: decahC~pacbell.net. Web site: http://www.decah.com/ Page 3 of 8 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Service since 1984 d Fencing. i) Install Tree Protection Fencing before any demolition or construction begins. The area inside the fencing is termed the TPZ (Tree Protection Zone). In all cases place the fencing as far from protected tree's trunks as possible, in order to provide the maximum amount of protected space for each tree or group of trees as well as future landscape areas in general, while still allowing for site work to progress. The arborist must meet on site with the general and fencing contractors prior to demo, to agree upon fence placement. The arborist must also inspect fence installation prior to the start of demo. The fencing shall not be taken down or moved without the project arborist's permission. The arborist should be on site during demo near the trees and should also supervise any necessary work inside the fencing. ii) Fencing Materials and Installation: The fencing shall be 6-foot high metal cyclone mesh attached securely to 2-inch diameter steel posts driven 18 inches into the ground so that they cannot easily be moved, and spaced no farther than 10 feet apart. Plastic fencing is not acceptable unless the terrain prevents the use of the cyclone fencing. Locations for plastic fencing must be pre-approved by the project consulting arborist. If the fencing must be placed on an impermeable surface, the posts may be inserted into post stands. If the impervious surface is later removed, the posts should then be placed into the ground, as described above. An 18-to 24-inch wide gap should be left in the fencing (bordered by posts on each side) to allow access for tree work and monitoring. iii) If it is not possible to fence off a particular tree, then the trunk of the tree must be wrapped with 2" x 6 -12" vertically stacked lumber from the ground up, with a gap of 1 to 2 inches between boards, fastened to the tree with rope or metal straps at the top, bottom and middle of the of its height. The lumber is then wrapped with 3 layers of orange plastic ski fencing, from ground level up to the lowest accessible branches. Also cover as much as possible of scaffold branches2 with 3 layers of orange plastic fencing. Such trees also require ground protection underneath as much of the dripline as possible as specified in item 4.a. iv) Durable neon-colored flagging tape can be woven through the top of the fence, or about 12 inches of orange plastic ski fencing can be attached to the top of the cyclone fencing to increase visibility to vehicle operators. v) Fencing Phases ~ Locations: vi) Pre-Demo: Install this phase of tree protection fencing before any demolition begins. The fencing shall be installed 1 to 2 feet beyond existing structures or pavement to be removed (or slightly more if necessary to allow for work) required for each improvement. In all cases place the fencing as far from protected tree's trunks as possible, in order to provide the maximum amount of protected space. For this particular project, the easiest thing to do would be to fence off as much of the project from the trees, where this is possible instead of fencing off individual trees from construction. Of course, do fence off individual trees or groups of trees, when necessary to protect them. vii) Post-Demo, Pre-Construction: Move the fencing outward to 1 to 2 feet beyond proposed structures or other improvement (or more if necessary to allow for work) required for each 2 Scaffold branch: a primary structural branch arising from the trunk of a tree. Usually the largest and often the lowest branches of the tree. PO Box 3714, Saratoga, CA 95050. Phone ~ Fax: 408-725-1357. Email: decahC~pacbell.net. Web site: http://www.decah.com/ Pnge 4 of 8 Deborah Ellis, MS Consulting Arborist 8 Horticulturist Service since 1984 improvement, otherwise at or beyond the dripline of the tree (or groups of trees), whichever is greater. In all cases place the fencing as far from protected tree's trunks as possible, in order to provide the maximum amount of protected space the trees as well as any additional future landscaping. As with pre-demo fencing, the fencing should enclose as much of the site outside of the construction zone as possible, not just a small area around the trunk, or the driplines of individual trees. You will need additional fencing for this phase, since the fencing will have to enclose a larger area than for demo. viii) Trees located outside construction zone or on Neighboring Property. If any portion of the canopy of a tree on adjacent property or on jobsite property overhangs the construction zone and/or perimeter construction zone fencing, these specifications shall apply to such trees as well. The portion of the canopy that overhangs the job site must be fenced off at the dripline or as close to this distance as possible while allowing for construction work. ix) Tree Protection Signage shall be posted on the fencing every 25 feet or in each cardinal direction (whichever is less), clearly proclaiming that there is to be no unauthorized work or persons within the tree protection zone, no dumping of chemicals or storage of materials or equipment, and who to contact regarding this. Use the template sign that I have provided. Signs must be either laminated or metal. For more durable and reusable signs, you may send the template and explanatory sheet (also available from me) to a sign company to have the appropriate number of durable aluminum signs made for the project. Signs must be attached to the fencing with plastic wire ties - 1 wire tie at each of the 4 corners. e Mulching. Trees to be removed should be chipped on site, with chips stored in an area designated by the site supervisor and/or within tree protection zones. These chips will be used as mulch for trees to remain. The project consulting arborist will determine which trees shall receive mulch. If mulch is required for trees, it shall be spread 3 to 4-inches deep of within the fenced-off tree protection zone. Keep the mulch 6 to 12 inches away from the root collar (junction between trunk and roots) of the tree. The mulch will help regenerate new fine roots in the soil just beneath the mulch. This can help to compensate for some of the root loss or root damage that trees experience. This simple task is perhaps one of the most effective things that can be done for trees. Existing vegetation (such as lawns) should be left in place and not ripped out. If pavement is removed within the tree protection zone, then mulch must be placed within this area. Wet the soil underneath the previous pavement to a depth of at least 6 inches, spread the mulch, and then wet the mulch throughout its entire depth. 4) DURING DEMO/CONSTRUCTION a Unavoidable Vehicle Traffic within Tree Protection Zones: Where vehicles or equipment must travel within tree protection zones, protection of the soil to reduce compaction must be accomplished through one of the following: i) Apply 6-12 inches of woodchip mulch to the area ii) Lay'/. inch thick plywood or 4 x 4 inch wood beams over a 4+ inch thick layer of wood chip mulch iii) Apply 4 to 6 inches of gravel over a taut, staked geotextile fabric iv) Placing commercial logging or road mats on top of a 4+ inch thick mulch layer PO Box 3714, Snratoga, CA 95050. Phone & Fax: 408-725-1357. Email: decnhC~pacbell.net. Web site: http://www.decnh.com/ Page 5 of 8 Deborah Ellis, MS Consulting Arborist S Horticulturist Service since 1984 Note that stone, geotextile and mulch exceeding 4 inches in depth will need to be removed after work in the area has been completed. b Do Not Dump Cement Tailings, Chemicals or Other Waste Products into any Future Landscape Area, not just within tree protection zones. Preferably, have a designated washout pit far from landscape areas. c Dealing with Roots that must be removed or are damaged: It is strongly recommended that the project arborist (with his/her own root cutting equipment) be on site during these times to assist with root assessment and cutting and to document and make recommendations regarding root damage. i) Methods of root pruning (in descending order of preference): (1) Soil excavation using (1) air spade, (2) pressurized water, (3) hand digging with hand tools. Followed by selective root cutting, and leaving roots intact (digging underneath) when possible. (2) Using a root cutting machine (e.g. DoscoT"" or VermeerT"" Root Pruner) cutting along predetermined line on the soil surface. These machines cut roots cleanly, but indiscriminately. (3) Mechanically excavating (e.g. with trencher or backhoe) and hand pruning what is left of roots. Preferably use backhoe, work slowly and have ground person cleanly cut roots as soon as possible after encountered. ii) The following tools are mandatory: (1) Round-blade shovel (2) Large mattock (3) Tree pruning saws designed for root cutting iii) The following tools are recommended: (1) Hand mattock (2) Pruning toppers with 1-inch diameter capacity (3) Hand trowel shovel (4) Recipro-saw with wood cutting blades (especially pruning blades -have several new blades on hand) (5) Concrete circular saw (rock or root cutting saw, e.g. Stihl TS-400 with a 12-inch blade, preferably carbon-tipped -start with a new blade and have extra blades on hand). (6) Chain saws (for large roots, e.g. over 4 inches in diameter start with a new chain and have extra chains on hand) iv) If heavy equipment is used for grading, a ground person (preferably the project arborist) listens and watches for roots as does the equipment operator. When roots are encountered that must be removed, grading stops and the roots are cut right away rather than tearing them back toward the trunk by continuing to operate the heavy equipment. If hand digging is used for grading the same procedure is followed. Use appropriate tools for the root(s) in question. In order to properly cut roots you may have to carefully dig back into the soil by hand with a shovel, hand trowel or mattock behind the root, so have these tools on hand as well. Digging back behind or underneath roots may be necessary in order to have room to operate the saw and cut the root. v) Roots 2 inches in diameter or greater that must be removed or have been damaged must be cut cleanly near the soil line. Smaller roots may (and are encouraged) to be cut. moots larger tnan 4 mcnes m aiameter may not oe removea w~mout ine aroons~ s approval. PO Box 3714, Saratoga, CA 95050. Phone & Fax: 408-725-1357. Email: decnhC~pacbell.net. Web site: http://www.decah.com/ Page 6 of 8 Deborah Ellis, MS Consulting Arborist ~ Horticulturist Service since 1984 vi) Sometimes less root damage will occur if roots are precut 6 to 12 inches beyond the planned excavation. Specialized root-pruning equipment such as a VermeerTM or DoscoTM root pruner machine can be used. If roots are not precut, then encountered roots that must be removed must be cut cleanly and at a right angle if possible. If you are uncertain about the size or status of roots and what to do about them, contact Deborah Ellis for assistance. vii) Place all cut root sections in a pile near where the roots have been cut, so the consulting arborist can review and document a) When using a backhoe to remove soil near trees: The backhoe or other equipment must sit on existing pavement and work backwards so as to remain on the pavement or otherwise outside tree protection zones, or at least as far away from tree trunks as is possible. Work very slowly with the backhoe, removing soil in no greater than 6 inch lifts, and have 2 workers on the ground with shovels and a large and small mattock (preferably one of the workers is the project arborist) watching for roots. The backhoe operator should "feel" for roots as well. As roots are uncovered and/or contacted the ground workers cut roots cleanly with a saw as directed in item #4.c. above b) Structure demo: structures should be collapsed inward and/or away from adjacent trees. Demo equipment must sit outside tree protection zones. c) Pavement removal: This may be done with a backhoe if done carefully so as not to damage the trunk of the tree, and to disturb the roots of the tree as little as possible. The backhoe or other equipment must sit on existing pavement and work backwards so as to remain on the pavement or otherwise outside tree protection zones. Alternatively, pavement may be broken into manageable pieces (e.g. by hand with jackhammer) and hand placed onto a loader. Where roots larger than 2 inches in diameter have grown into the existing base course material, use the existing material as the new material and do not remove and replace it. d) Trees to be removed: Trees to be removed must be removed without damaging trees that will remain. If trees to be removed are far from any trees to remain, then trees to be removed may be pulled out or pushed over as long as roots or aboveground portions of nearby remaining trees will not be damaged. Alternatively grind the stumps of trees to be removed to 12 inches below grade, again if this grinding will not be near trees that will remain. If trees to be removed to be are close to trees that will remain then do not push or pull over the tree or grind the stump, but rather cut the trunk to a stump that is as flush with the ground as possible. The method of tree removal should be agreed upon at the site on a tree by tree basis between the project arborist, general and demo contractors prior to any tree removals. 5) OTHER: a Herbicides used underneath pavement must be labeled for use around trees. b Moving/Transplanting Trees. Use a qualified tree moving service pre-approved by the project arborist. The tree moving service should irrigate the trees thoroughly 1 to 2 weeks prior to digging, move and replant the trees, construct an 8-inch high water berm 12 inches beyond the edge of the newly planted tree rootballs, irrigate the transplanted trees thoroughly after moving by hand with a PO Box 3714, Snrntogn, CA 95050. Phone ~ Fax: 408-725-1357. Emnil: decahC~pacbell.net. Web site: http://www.decah.com/ Pnge 7 of 8 Deborah Ellis, MS Consulting Arborist & Horticulturist Service since 1984 hose and hose-end watering wand, set up a temporary drip irrigation system for the newly planted trees, install a 4 inch depth of coarse wood chip mulch within the planting hole, and be hired by the general contractor or owner to inspect and maintain the trees during the duration of construction and until landscaping is completed. There must be a designated storage area for the trees on site, where non-recycled water is available (if the trees will be stored in boxes or temporarily in the ground prior to planting in their final locations). If stored, the trees must be fenced off (as a group if necessary or as individual trees) from construction as per the previous fencing directions with the addition that the fencing must be placed outside the dripline of the tree(s). If the trees are planted immediately after digging, then the tree protection fencing must be placed beyond the planting hole and also beyond the canopy of the tree. If possible, it will assist the tree's establishment in its new location to pre-cut roots 6 to 12 inches inside the root ball that will be dug when the tree is planted. Precutting should preferably be done about 6 month prior to digging, but no later than 3 months prior to digging. 6) TREE PROTECTION SUPERVISION a Tree Protection Inspections 8~ Documentation: The project arborist must supervise any work within the tree protection zone, or when roots or branches of the tree are encountered or are expected to be encountered. The arborist will inspect the site for tree protection specification compliance at least monthly from prior to demo until immediately after construction is completed. Immediately after each tree protection inspection an inspection report should be faxed to the project superintendent and the City Planning Department contact for the project. The inspection report shall include the following information: i) Inspector name and contact information ii) Date and time of inspection: iii) Date of last inspection iv) Reason for inspection v) Weather (approximate temperature, any rainfall, etc.) vi) Current demo or construction work on site vii) Additional demo or construction work completed since last inspection viii) Tree protection fencing status (including tree protection signage) ix) Mulching status (if required) x) Tree work done within last inspection period (pruning, irrigation, etc.) xi) Grading, trenching, excavations, cut or exposed roots, root recutting and protection xii) Other 7) ENCLOSURES: a Tree Protection Sign Template b Form letter to order metal signs from a sign company 'i PO Box 3714, Saratoga, CA 95050. Phone & Fax: 408-725-1357. Email: decnhC~pacbell.net. Web site: http://www.decah.com/ Page 8 of 8 Deborah Ellis, MS Consulting Arborist 8 Horticulturist TREE PROTECTION SIGNAGE SPECIFICATIONS ©Deborah Ellis, 2008. (Fax this sign to the companies below, or other sign companies, for bids) Project: Date: Consulting Arborist: Deborah Ellis, MS. Certified Professional Horticulturist #30022, ASCA Registered Consulting Arborist #305, W.C.I.S.A. Board Certified Master Arborist #457 Service since 1984 • Quantity: • Written information on sign: see attached 8 x 1 1.5" template sample • Size of each sign: 9" x 12" x .040 aluminum or corrugated plastic (give separate bid for each) • Painted with red enamel background • White screen print lettering (letter size as per sample sign above) • Helvetica bold fond • Four holes per sign in each corner, large enough so that wire ties can affix signs to cyclone fencing • Aluminum signs should not fade, crack or peel for a period of at least 7 years, corrugated plastic for at least 1 year. • Scale proofs • Price per sign: Sign manufacturing companies: Arne Sign Co. 1701 Lawrence Road Santa Clara, CA 95051 408-249-3838, fax 241-781 1 Sign-A-Rama 3194 De La Cruz Blvd., Suite 19 Santa Clara, CA 95054 408-654-7678 signaramasc@gmail.com www.signarama.com This document was emailed from Deborah Ellis at decahCa~oacbell.net. PO Box 3714, Saratoga, CA 95050. Phone & Fax: 408-725-1357. 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