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16491 S. Kennedy Rd - Staff Report Exh.8-10' 00 ~jb Walter Levison r CO NSU LTING ARBORIST &\ .~-::.~~~.,!.~, ASCA Registered Consulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) l iSA Certified Arborist #WC-3172 cell (415) 203-0990 I drtree@sbcglobal.net Site Address: 16491 S. Kennedy Road , Los Gatos. CA Assessment of Protected-Size Trees at 16491 S. Kennedy Road Los Gatos, California Prepared for: Ms . Erin Walters, Associate Planner Town of Los Gatos Community Development Department 11 0 E. Main Street Los Gatos, CA 95030 Field Visit: Walter Levison, Contract Town Arborist (CTA) 2/16/2016 Report by CT A Version: 2/16/2016 1 of34 Registered Member, Ameri can Society of Consulting Arborists and Member of the lnternatiooal Sodety of Arboriculture C> Walter Levison 2015 All Rights Reserved ,1\ ., ..... ~\. s: 0 J.. z~ \tl ~ 0 "I Z II \ G> r oO -(/) \:).~G) " o 2i -t-z O L (/) ;:;:j iJ\ AI co l m -o ;;\j\m ~i < ~10-m C)_f-C Versioo: 2/1612016 ~)J ~~!~~f.N~~~ig~~ ~~- ASCA Registered Consulting Arborist #401 I Tree Ri sk Assessment Qualified (TRAQ) l iSA Certified Arborist #WC-3172 cell (415) 203-0990 I drtree@sbcglobal.net Table of Contents 1.0 Summary 3 2.0 Assignment & Background 4 3.0 Tree Data Table 5 3.1 Tree Data Table Maintenance and Protection Codes 8 4.0 Tree Location & Protection Fence Map 9 5.0 Observations & Discussion 1 0 6.0 Town of Los Gatos-What Trees are Protected? 13 7.0 Recommendations 14 8.0 Tree Protection and Maintenance Directions per Town Code 21 9.0 Tree Replacement Standards-Los Gatos Town Code 25 10.0 Author's Qualifications __ 27 11.0 Assumptions and Limiting Cond itions 28 12.0 Certification 29 13.0 Digital Images 29 S ite Address: 16491 s. Kennedy Road, Los Gatos, CA Registet'ed Membet', American Society of Consulting Arborists and Member of the lntet'national Society of Arboriculture C> Walter Levison 2015 All Rights Reserved 2of34 V ersion : 2/16/2016 ~Jb Walter Levison r CO NSULT ING AR BORI S T ASCA Registered Consulting Arborist #401 I Tree Risk A ssessment Qualified (TRAQ) l iSA Ce rti fied Arborist #WC-3172 1.0 Summary I~ ~~A ·-.... ~-·-···... ·-"--·· cell (4 15) 203-0990 I drtree@sbcglobal.net 1. Protected-size trees (4 inches diameter at 4.5 feet above grade) to be removed due to direct and/or indirect conflicts with proposed work: None (Note however that the CTA has not reviewed any landscape plan or irrigation plan sheets as of the date of writing , and that those plans may or may not conflict with various trees shown on the CTA's tree map markup in this report). 2. Protected-size trees that may be significantly impacted by site plan-related work as currently propo se d . See 'observations and discussion section 5.0' for details of various site work elements and their expected impacts on these trees: a. Xylosma #1 (infiltration trench conflict). b. Coast live oak #2 (infiltration trench conflict). c . Coast live oaks #13 and #14 (root systems may have already been severely compromised on the south side due to recent project grading and excavation along the hill slope). d . Coast live oak #15 (Large Protected Tree Designate) (Proposed retaining wall conflict). An analysis of this tree's stability is included below in the observations and discussion section, and is a subject for further discussion . 3. Protected-size trees that can be retained with no impacts expected , if protective measures are installed per the recommendatio ns below in this report: (Note: landsca pe and irrigation plans not yet assessed by the CTA may significantly impact these trees): Trees #3, 4, 5, 6, 7 , 8, 9 , 10, 11 , 12 , and #16 . 4. Other Notes: • Trunk locations for trees #1 , 2, 3, 4 , 5 , 6, 7, 8 , 9 10 , 11 , and #1 2 were "rough plotted " by the CTA by extending a forester's tape out from the existing re sidence footprint co mer. The CTA suggests that the applicant provide Staff with accurate surveyor-plotted locations for these trees so that impacts to the trees from propo se d si te work ca n be more accurately assessed. • Pruning of oak #15 is advised to reduce endweight in the outermost canopy in order to reduce ri sk of limb or mainstem failure (if tree is reta in ed). • Fertilization of oaks #13, 14, and #15 via soil injection using Greenbelt 22-14-14 soluble tree formula is advised to boost live twig density. • New landsca pe and irrigation plan s, not yet s ubmitted by the applicant, will need to show offsets of at least 1 0 linea r feet between new plantings/new irrigation piping and trunks of existing trees. Site Address: 16491 S. Kenn edy Road, Los Gatos. CA Registered Member. American Society of Consulting Arborists and Member of the International Society of Arboriculture o Walter Levison 2015 All Rights Reserved 3of34 Version: 211612016 ~~ ~~!~~r.N!-~~i~~~ ASCA Registered Consulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) /I SA Certified Arborist #WC-3172 2.0 Assignment & Background Walter Levison, Contract Town Arborist (CTA) was directed to tag with numbered aluminum tags and assess all Protected Size ( 4 inch diameter and greater) trees both on the property proposed for site plan work and adjacent to the site plan area within 10 linear feet of the property lines. Note that "exception " trees not protected under the current Town tree ordinance (e.g. fruit and nut trees <18 inches diameter, and Tasmanian blue gum, red gum, blackwood acacia, tulip tree, tree of heaven , palms (except Phoenix canariensis), and privet <24 inches diameter, etc.) were not tagged or assessed by the CTA. On "Hillside" properties (see Hillside map, this page), all eucalyptus species are considered exception trees, and are not protected by Town ordinance provisions. Large protected tree (LPT) means any oak (Quercus), California buckeye (Aescu/us ca/ifornica), or Pacific madrone (Arbutus menziesii) which has a multi-stem total of 24 inches or greater diameter (75 inch circumference); or any other species of tree with a multi-stem total of 48 inches or greater diameter (150 inch circumference). ~-I I I '--L __ __l__l ~--~-~ '\\. ~}~ "':::.~: ·.:;..·:;.:.·.:...::. cell (415) 203-0990 I drtree@sbcglobal.net I I l-~--.. ·--.. ..... l ___ .,..,.. ....... .................. _.~ ~=--=::..~=· •· 1 o.-.-..:r.!.e::-.::z.. -·-=-_.._ .... .,_ t--. I . -;:,. Side Note : Please view digital versions of this report using Adobe CS , Adobe Pro , or equivalent software programs , since use of a free Adobe acrobat reade r product may cause color-coded items in the author's tree map to disappear from view. Valuation Appraisal and Security Bonding The new 2015 iteration of the Town tree ordinance section 29.10.1000 (c)3 includes wordage that requires that a ll trees being retained on a development site need to be appraised for dollar value at the applicant's expense prior to building or grading permits being issued by the Town. The CTA has therefore included this appraisal information in the following report for use by Town planning division Staff. Part 'f of this same tree ordinance section states that the Town may condition a security bond prior to issuance of a permit, in the sum of $5 ,000 per each tree being preserved, or $25,000, whichever is less. The ordinance does not contain wordage as to whether this includes neighbor-owned trees adjacent to construction. Therefore, the CTA will assume that neighbor-owned trees are included as trees "required to be preserved ". The CTA will determine a security bond amount based on the above wordage and on the appraised values of the trees being retained on and adjacent to the proposed development site. Site Address: 16491 S. Kennedy Road , Los Gatos, CA Registered Member. American Soci ety of Consu lting ArbO<ists a nd Member o f the International Society of Arboriculture Cl Walter Levison 2015 All Righ ts Reserved 4 of 34 Version: 2/1612016 ! E " z ... ~ ! 1- 2 3 4 5 6 7 8 ~J~ Walter Levison CONSULT ING A R BO R IS T ASCA R eg istered Co ns ulting Arbori st #401 I Tree Risk Assessment Qualifi ed (TRAQ) l i SA Ce rtifi ed Arbori st #WC-3 172 3.0 Tree Data Table Genus& Species Xylosma conge slum Quercus agrifolia Quercus agrifolia Sequoia sempeNirens Sequoia sempeNirens Sequoia sempeNirens Sequoia sempeNirens Sequoia sempeNirens Common Name Xylosma Coast live oak Coast live oak Coast redwood Coast redwood C oast redwood Coast redwood Coast redwood ... .. a; !i Q ~ .>< c 2 1- 7 4.1 7.5 13.5 12.5 12.6 11.2 13.2 ... .. a; !i Q s:! c 2 1- 5 ... ~ i Q "' .>< c 2 1- 5 Site Address: 16491 S. Kennedy Road. Los Gatos, CA .>< ~!! =~ <"' -E 0 .. eo :s Vl 20 4.1 7.5 13.5 12.5 12 .6 11.2 13.2 ~~ c-•!!:.. U-a oe• -I! l!c:a. .~Vl J: 25/16 20/9 23/12 35/12 35/8 35112 35/8 35/16 ... ~:c ~· ... -ct:., &.-w ~~ae •=o J:2~ ;;; 85/55 90/60 90/80 75/75 75/75 75/75 75/75 80/80 Overall Condition Rating (0 to 100%) 7 5%Good 7 8%Good 86%Good 75%Good 75%Good 75% Good 75%Good 80%Good 'i ~~ -0 !c--ls~ £~~~ el-i: ... l=':s _3 ~E No No No No No No No No 5of34 Registered Membef. American Society of Consulting Arborists and Member of the International Society of Arboriculture C> Walter Levison 2015 All Rights Reserved I X X X X X X X X '0 •c.>< -~·"' 0 i5.-0 ~1(-;3: 'CW:=-o • f) Cl). ~lle~ VJ•o• ,t.t:ct: Moderate Moderate Negligible Negligible Negligible N eglig ible Negligible Negligible ~-0 c c.S! ·-j~ -a • iic; c:a.c o_ .... E E E ~~\. ~~A ............. ,.,....., .. ,. ' ...... ~ .................... .. ce ll (41 5) 203-09 90 I drtree@sbcglobal.net .. 0 .!! .:..-8 c 5 It: :-::: m .... ~ .E ...... -c'ii ~ 2 -1-(!) E gc It:;~: -ge 'l:U :s Ill '0 ~.;: :: -~ ;;:g ... ~c!.! etc Existing driveway will be demolished southward to near this a rea. Trenching impact likelv. Trenching impact likely. Proposed storm drain trench 10 feet offset. Moderate live twig density. Soil moisture deficit. Moderate live twig density. Soil moisture defteit. Moderate live twig density. Soil moisture deficit. Moderate live twig density. Soil moisture deficit. Good live twig density. Soil moisture deficit. Vl c z~ w o-1--c (1)1-!";<..., wO~ct:oOWw~ oct:l:;u I~ ct:Z lUI o..w u.. 5 feet radius min. Steel radius min. 5 feet radiu s min. 5 feet radius min. Sfeet radius m in. 7 feet radius 7feet radius 7 feet radius w (,J z z 0 ffi~t;~ 1-<l!!o ~ ~(,J ~ 0.. RPZ. TB RPZ, T B RPZ RPZ,W RPZ, W R PZ,W RPZ,W R PZ,W Version: 2/1612016 ~ E ::J z ! ! 1- 9 10 11 12 13 ~)J Walter Levison CONSULT IN G A RB ORIS T ASCA Registered Consulting Arbori st #401 I Tree Risk Assessment Qua lified (TRAQ) liSA Certified Arbori st #WC-3172 Genus& Species Sequoia sempervirens Sequoia sempervirens Quercus agrifo/ia H eterometes arbutifo/ia Quercus agrifo/ia Common Name Coast redwood Coast redwood Coast live oak California toyon Coast live oak ... ~ !i Q :;< c 2 1- 13.1 13.5 13.0 5.1 15.5 ... ~ -~ 0 S:! c ~ 4.6 ... ~ .! 0 ~ c 2 1- Site Address: 16491 S . Kennedy Road. Los Gatos, CA ~ c ::J ~~ ~o! eo ::J II) 13.1 13.5 13.0 9.7 15.5 ~~ c-~;-oe• :c! g/6 ~ 35/15 35/16 20/18 15/1 1 30/30 f:c oe&!:;: .c-w =f!~ :.ao :Z:uo ::s-... -u; 80/80 80/80 80/55 65/50 75/60 Overall Condition Rating (0 to 100%) 80% Good 80% Good 70%Good 59% Fair 67% Fa ir ~ ~! -0 ~('-~~ £!;.! ei-Ni! !" l='::s ii o.. E ..J ..J No N o No No No 6 of34 Registered Member. American Society of Consulting Art>orists and Member of the International Society of Arbaiculture o Walter Levison 2015 All Rights Reserved I X X X X X .., ol£~ b-... ;: ·c:w=-, • • en • !~~i Q.~ II: ..5 Negligible Negligible Neglig ible (Already moderate to severe) >-Q.~ 0 c i! u¥ ~~ ..,"" -• ag .3- s ''-\ ~~~ ............. """ .... ..... -.. " ·-··--... ·· cell (4 15) 203-0990 I drtree@sbcglobal .net • 0 !l .s~ g c s II: •::: Q ~ ¥ .E ~ ... -c'S "E 2 -1-Cl 0 Oc II:J ""o .... 'l:t) ::J CD X ~~: ~~ •ea•z .l!!:!! ... :a;.! a.. ct:5 Good live twig density. Soil moisture deficit. Good live twig density. Soil moisture deficit. Good live twig density. Bark inclusion at fork (two codominant mainstems). Buried root crown. Canopy lopsided south into the project area. Poor to moderate live twig density. Much of the sout h side of the root system may have already been destroyed by excavation and grading work on the hill. i z~ Q- 1-1-9_ ou~..l oww!!: cr'"""u oz IE~ 10feet radius 10 feet ra dius 20 feet radius 10 feet radius 10 feet rad ius w t) z z 0 c(Qj:ln ffizu~ 1-c(~O ~ ~t) ~ II. RPZ,W RPZ.W RPZ RPZ RPZ, W, F Version: 2/16/2016 ! E :l z :il' 1- ~ 1- 14 15 16 ~J1J Walter Levison CO NSULT IN G ARBORIST ASCA Registered Co nsulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) l i SA Certified Arborist #WC-3 172 Genus& Species Quercus agrifolia Quercus agrifolia Pinus radiata Common Nam e Coast live oak Coast l ive oak Monterey pine ... ~ i 0 :;;: c 2 1- 9.8 31.0 14 ... 41 .. E .. 0 ~ c 2 1- 14 ... ~ i 0 ~ c 2 1- ... c ~Y2 :.! c( • .... E 0 .. eo :l VJ 9.8 31.0 48" 10 I total est. ~~ ;~ U-o .., .. -e ~CL ·rcn J: 27/16 35/50 45/25 NOTES ON TREE SURVEY DATA TABLE : ~:c ..,~~ -5-w ·I!~ •.ao l:!o!O e::. u; 75/60 50/25 75 /35 Overall Condition Rating (0 to 100%) 65% Fair 30%Poor 50% Fair 1 ~~ !c--~~ ez~! fl.~N. 41 1-i! "' !=":> ~ :ae No YES No X X X "0 $c.,. .... !!!""' 0 i5.-0 b>ec;~ -cw~-a • .. en • >-j· ~ ~ a; CL U: .5 (Already severe) Minor to Moderate N eg ligible ~c g .2 ~i l:6 ~~ O.c o_ ..J s I~ ~}~ ... _ ............ ,... -·· ·-" ............. .. cell (41 5) 203-0990 I drtree@sbcglobal.net ~ ll c~ 8 -;a u: =~ ga ..J. -~.: ::0 c-o ._ 2 8 1- 0 0 c 11::31 -oo .... ·~o :l Ill "0 c .. ~: ~~ •••z l'l:!! ... .,_ ... cfC~S D. Moderate live twig density. Entire south side of root system may have been destroyed by recent grading and excavation on hill. See section 5.0 of report 'observation & discussion' fo r details Crowded branch structure and crowded codominant mainstem forks with included bark. Species susceptible to pine pitch canker and to bark beetle fee dina 'c z~ l.w,_ ~~-ouu:..: oww!:!; u:l)u ~ u:z Q.W IL 8 feet radius 10 to 15 feet (see map) 10feet radius w z ~ 0 c j::Vl zCu W wzwc 1-C1-0 ~ :i1u ~ D. RPZ, W,F RPZ, W, F R PZ,W 1. On-site survey trees include all existing speci mens of tree species with at least one (1) mainstem measuring greater than or equal to 4 inches diameter at 4.5 feet above grade. 2. Multi-stem tree diameter is equal to the total of all mainstem diameters at 4.5 feet above grade, per the Town tree ordinance definition of "diameter". Diameters were determined using a foreste r's "D-tape" which is wrapped around the c ircumference of the tree, and converts circumference to diameter in ches and tenths of inches. 3 . Heigh ts and canopy spread diameters were estimated vis ually for smaller trees. Site Address: 16491 S. Kennedy Road, Los Gatos. CA Registered Member. American Society of Consulting Arborists and Member of the International Society of Arboriculture C> Walter Levison 2015 All Rights Reserved 7 of34 Version : 2/16/2016 ~Jb Walter Levison r CO N S ULT I NG AR B ORI S T ~\ .. __ ... ~ ... -·· . __ ...__ ... ~ ASCA Registered Consulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) /ISA Certified Arborist #WC-31 72 ce ll ( 415 ) 203-0990 I drtree@sbcgloba l.ne t 4. (If applicable) Trees with thick poison oak surrounding their trunks were avoided . Those specimens were not tagged with numeric tree tags, and trunk diameters in those cases were visually estimated from afar. TD/E = "Current season live twig density and live twig extension" 3.1 Tree Data Table Maintenance and Protection Codes RPZ: Root protection zone fence , chain link , with 2" diameter iron posts driven 24" into the ground, 6 to 8 feet o n center max. spacing . RB: Root buffer consisting of wood chip mulch lain over existing soil as a 12 inch thick layer, overlain with 1 inch or greater plywood strapped together wi th metal plates. This root buffer or soil buffer should be placed over the entire w idth of the construc tion corrido r between tree trun k s and constru ction. RP: Root pruning . Prune woody roots measuring greater than or equal to 1 inch diameter by carefully back-d igging in to the soi l around each ro ot using small hand tools until an area is reached where the root is undamaged. Cleanly cut through the root at right angle to the root growth direction, using professional grade pruning equipment and/or a Sawzall with wood pruning blade. Backfill around the cut root immediately (same day), and th oroughly irrigate the area to saturate the uppermost 24 inches of the soil profile . BDRP: Back-dig root pruning: Hand-dig around the broken root, diggi ng horizontally into the ope n soil root zone until a clean , unbroken, unshattered section of the root is visible. Proceed as per 'root pruning'. TB: Trunk buffer consists of 20-40 wraps of orange plastic snow fencing to create a 2 inch thick buffer over the low est 8 feet of tree trun k (usuall y takes at least an entire roll of orange fencing). Lay 2X4 wood boards vertically, side by side, around the entire ci rcumference of the trun k. Secure buffer using duct tape (n ot wires ). F: Fertilization with slow-release Greenbelt 22-14-14 tree formula, as a soil injection application using a fertilizer injection gun. This brand and formulation is commonly used by reputable tree care companies in the Bay Area . App ly at label rate and inj ection hole spacing. M: 4-inch th ick layer of chipper truck type natural wood chips (example source: Lyngso Garden Supp ly, self pick-up ). Do not use bark chips or shredd ed redwood bark. W: Irrigate using various methods to be determined through discussion w ith General Contractor. Irrigation frequency and duration to be determined through discussion and/or per directions in this report. P: Pruning per specifications noted elsewhere . All pruning must be performed only under direct site supervision of an ISA Certified Arborist , or performed directly by an ISA Certified Arborist , and shall conform to all current ANSI A300 standards. MON : A Project Arborist must be present to monitor specific work as noted for each tree . Site Address: 16491 S. Kennedy Road. Los Gatos. CA Registered Member, American Soci ety of Consulting Arborists and Member of the International Society of Arboriculture C> Walle r Levison 2015 All Ri ghts Reserved 8 of 34 Version: 2/1612016 ~J)J ~~!~~~N ~;~i;~~ ASCA Registered C onsulting Arborist #401 I Tree Risk Ass essment Qualified (TRAQ) l iSA C ertified Arbo rist #W C -3 172 4.0 Tree Location & Protection Fence Map I ~ ~~A ................... ~···. _ ......... ..-....... .. cell (41 5) 203-0990 I drtree@sbcglobal.net ~ , indicated tx. Nti~8C RtNC Tr;['[S TO II:E:lAAI't. I'JftO'T(CT TRCCS TU4T « Wl'THIN JO '"W OIT~. -'J''IIIOI'U .. HI'S. Ofl: ~ S'f" TRa PROTECOON NOTeS ON St i(CT CJ The CTA rough-plotted most of the above tree locations. The CTA therefore suggests having the applicant's survey team verify the locations of trees #1 through #12 so that we know exact distances between tree trunks and proposed work. Site Add ress: 1649 1 S . Kennedy Ro ad, Los Gatos, CA Regstered Me mber, American Society of Consulting Arborists and Member of the International Society of Atboriculture C> Walter Levison 2015 All Rights Reserved 9of34 Version: 2/1612016 ~J1J ~~!~~~"~~~i~~R J ~ ~tl~- ASCA Registered Consulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) l iSA Certified Arborist #WC-3172 cell (415) 203-0990 I drtree@sbcglobal.net 5.0 Observations & Discussion The CTA reviewed the entire set of plans submitted to planning division (received by planning dept. in January 2016). Comments regarding proposed work noted on individual plan sheets are detailed below. a. Landscape and irrigation plan sheets were not available for review by the CTA. These sheets may or may not end up indicating additional impacts to trees that are not known at the time of writing. Given that extensive excavation/grading has occurred to date, it is suggested that certain tree maintenance actions be initiated to optimize survival and vigor of the sixteen survey trees. b. Large protected tree #15 (coast live oak): • Grading issues: Proposed new retaining wall excavation cuts appear to encroach into areas that are likely intact rooting areas extending south and east from the trunk of oak #15. For optimal root zone health, adjustment of the proposed retaining wall system is warranted to avoid damaging existing roots in this steep sloped area. The CT A suggests adjusting the proposed uppermost wall to 13 feet from trunk edge in order to allow fencing protection to be erected at approximately 10 to 11 feet radius out from trunk edge in all directions, or farther in some cases. • Landscaping and irrigation pipe trenching is a concern if work is proposed for the areas between the proposed new retaining walls and the trunk edge of oak #15. Again, these impacts cannot be assessed at the time of writing. • The CT A measures distances as radial feet from trunk edge. Note that the plot point on the applicants sheets is too small to accurate indicate the true dimension of the oak #15 trunk which is 31 inches diameter. Therefore, the CTA increased the diameter of the plot dot on the tree map to more accurately reflect trunk size . • Ants: Carpenter ant colonization of the cavities, an indicator of decay presence, was noted around oak #15. This ant species is known to colonize interior decayed wood areas of trees . Given that there are visible cavities in the tree, we already know that decay is present due to fungal digestion of the interior wood. However, the tree exhibits very good callus I woundwood development along the margins (edges) of the cavities, which indicates that the tree is laying down thick layers of new wood material each year which may or may not be outstripping the decay fungi's ability to digest wood from the inside outward. If new wood layers are thicker each year than the fungi's wood digestion distance each year, then the tree's live wood shell wall thicknesses will increase over time and the tree will theoretically become increasingly stable (assuming that endweights of extended limbs are managed through endweight reduction pruning). If fungi outrun the tree's ability to lay down new wood "year rings ", then the tree will eventually collapse due to loss of structural stability from the ever thinning live wood shell walls in the main stems. • Tree Stability: Tree stability is analyzed through use of certain criteria such as the ratio of remaining live wood wall thickness to total trunk radius . This measured is called "t!R", where "t " is remaining live healthy wood shell wall thickness (after bark and decayed wood are subtracted from the measurement) measured at a known height above grade elevation , and "R" is total trunk radius inches at that same elevation above grade. In the case of oak #15, there are two very large cavities visible: one that extends upward from grade, and another which is visible between 5 and 1 0 feet above grade (see images below in this report). The CT A estimated cavity decay visually. The following estimates of t!R therefore should be verified through use of a RES I advanced decay detection device which gives an arborist consultant an actual graphic readout of wood density as a microdrill travels through the trunk cross section . From density readouts , the consultant can then determine actual thickness of healthy live wood shell walls . Site Address: 16491 S. Kennedy Road. Los Gatos. CA Registered Member. American Society o f Consulting Arborists and Member of the International Society of Arboriculture C> W alter Levison 2015 All Right s Reserved 10of 34 Version: 2/161201 6 ~J~J ~~!~~f,"~~~ig~R ASCA Registered Consulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) l iSA Certified Arbori st #WC-3172 Lower cavity t/R was roughly estimated to be 3" /11" = 27% Upper cavity t/R was roughly estimated to be 4 " /14" = 29% ~~\ ~t~ ...__ . .,.,._,,. ... ,.,. ··~· .. ·-"--··- cell (415) 203-0990 I drtree@sbcglobal .net Industry standard thresholds for outright tree removal (i.e. "unmanageable risk") range from about 20% to 33% t/R for coast live oaks that exhibit a somewhat squat, stubby canopy profile against the wind such as our oak #15 specimen . Given that our subject tree has good trunk taper, and a very wide trunk in relation to its canopy size which does allow load forces to be spread out through a large area as they travel down to the base of the trun k and buttress root system, our threshold for removal would be somewhere in the 25% range for this tree. A taller tree with more w indsail potential due to a higher profile against the wind might have a removal threshold more in the 30 to 33% t/R range. From this initial analysis which is not considered accurate, the CTA would initially recommend retaining the tree and having endweight reduction pruning performed to reduce canopy extension and thereby reduce load forces from canopy limb extensions acting on the lower trunk. However , the numbers shown above were very roughly determined without use of a decay detection tool such as a RESt microdrilling device. Therefore , I consider my analysis to be preliminary only, and suggest that t/R be more accurately determined by the applicant's consulting arborist using a RES I microdrilling device or other similar device with graphic display of wood density. c. Coast redwoods: The coast redwoods along the east boundary of the site exhibit symptoms of soil moisture deficit which is typ ical on s ites that do not have regular heavy irrigation provided via a timer system. The CTA suggests that soaker hoses or emitter lines be installed through the trees' root zones to provide regular supplemental soil moisture year round to trees #4 through #1 0. d . Grading and Drainage: Sheet C-2 dated 1/6/2016 by GreenBiueEarth of San Jose , California . • Infiltration trenches: The applicant's proposed infiltration trench system is located in a rectangu lar position at the base of the hill , between trees #1 a nd #2 (see tree map markup by the CTA in this report). The current proposed positioning of this trench system is such that work will encroach into the root systems of these two trees. I suggest moving the trench system further westward than currently proposed so that the trees can be fenced off at approximately 5 to 8 radial feet from trunk or more, which will more adequately protect the trees from both root zone damage and above ground trun k and canopy damages. • Storm drain pipe: The proposed storm drain pipe alignment is located such that damages to survey trees #1 through #16 appear to be insignificant. • Demolition of existing driveway north section: The existing driveway extends northward into the area just west of trees 1 2 , 3 , 4 , 5, and #6 . The proposed new driveway will end at a location just west of tree #1, with the existing driveway section west of trees #2 , 3 , 4 , 5, and #6 proposed to be demolished and assumedly landscaped with plant materials and irrigation (not verified ). It is impossible to determine impacts to trees from proposed work without having reviewed a proposed landscape and irrigation plan. • Proposed Retaining Walls: Retaining walls south and east of oak #15: As described above in section 5.0 (b), the existing root system of oak #15 may extend as far as 10 or 11 feet from the trunk edge, which puts them in the area proposed for new retain ing wall dev elopment. I suggest assuming that roots extend to this distance, and planning for new retaining wall development at a distance of approximately 13 feet , so that protec tive fencing can be erected at 10 feet from trunk edge of oak #15. The two to three foot offset between proposed wall work and protective fencing will allow work to proceed without causing conflicts between the excavation machinery bucket teeth and the chain link protective fencing material. Site Address : 16491 S. Kennedy Road, Los Gatos, CA Registered Member. American Society of Consulting Artlorists and Member of the International Sodety of Arboriculture C> Walter Levison 2015 All Rights Reserved 11 of34 Version: 2/161201 6 ~)~ ~~!~7f..H~ig~~ AS CA Registered Consulting Amorist #401 I Tree Risk Assessment Qualified (TRAQ) l iSA Certified Amorist #WC-3172 I~ ~}).. .......................... ._ ... ·-···-· ... ·--···· cell (415) 203-0990 I drtree@sbcglobal.net • Grading to Date Near Oaks #13 and #14: Grading and/or excavation that has occurred recently just south of the trunks of oaks #13 and #14 was estimated to be severe in terms of its impacts on the roots zones of these two native coast live oak specimens . Actual root loss from the south sides of the trees' root zones was difficult or impo~sible to accurately determine, since the area is covered with erosion control matting which hides all evidence of grading and excavation work through this open soil zone. The slope here is very steep. It is not clear if the trees ' structural stability has been compromised or not. For the purposes of this report, the author assumed that severe grading occurred a long the south sides of the trees, causing extensive loss of rooting area for these two oaks being retained . The work appears to have been performed as preparation for installation of the proposed new cabana structure which sits against this newly graded hillside (see applicant's submittal set of sheets). e . Removal Fees and/or Mitigation: No protected size trees are proposed to be removed . Therefore, there are no mitigation fees or removal fees required to be paid to the Town. f . Appraised Values and Security Bonding : The following are trunk formula method determined dollar values for the sixteen ( 16) survey trees: Tree Tag Number Appraised Value (Trunk (Retention Trees Formula Method) Only) 1 $1670. 2 $370. 3 $1190. 4 $1970. 5 $1690. 6 $1720. 7 $1370 . 8 $2010. 9 $1980. 10 $2100. 11 $2900 . 12 $870. 13 $4200 . 14 $1680. 15 $10900. 16 $1400 . TOTAL VALUE : $38,020. ·-- Site Address: 16491 S . Kennedy Road. Los Gatos. CA Registered Member, American Society of Coosuttins Artlorists and Member of the I nternational Society of Arboriculture C> Walter Levison 2015 Al1 Rights Reserved 12of 34 Version: 2/1612016 ~Jb Walter Levison r CO NSULTING ARBORIST A\_ ~}A .......................... .. -... _ ..... ___ .. ASCA Registered Consulting Arborist #401/ Tree Risk Assessment Qualified (TRAQ) /ISA Certified Arborist #WC-31 72 cell (415 ) 203-oggo I drtree@sbcglobal.net Security Bond : The Town tree ordinance contains wordage that allows for the Town to condition that applicants post a tree bond with the Town in the amount of $5,000 per each tree required to be retained , or $25,000, whichever is less. In this case, the min imum required tree bond will be $25,000. 6.0 Town of Los Gatos -What Trees are Protected? Per the 2015 iteration of the Town of Los Gatos tree ordinance (Town Code Chapter 29-Zoning Regulations , Art icle 1 ), the fo ll owing regulations apply to all trees within the Town 's jurisdiction (wordage adjusted): 1. All trees with at least a single mainstem measuring four (4) inches diameter or greater at 4.5 feet above grade are conside red "Protected Trees" whe n removal relates to any development review. 2. 12 inch diameter (18 inch multistem total) trees on developed residential property not currently subject to development review. 3. 8 inch diameter (8 inch multistem total) blue oak (Quercus douglasii), black oak (Quercus kellogit), California buckeye (Aesculus californica), and Pacific madrone (Arbutus menziesit) on developed residential lots not currently subject to development re view. 4. 8 inch diameter (8 inch multistem total) trees on developed res idential property not currently subject to development review, on lots in the designated Hillside Area per the official Town map. 5. All trees with a single mainstem or sum of multiple mainstems totaling 48 inches diameter or greater at 4.5 feet above grade are considered "Large Protected Trees" (LPT). 6. All oak species (Que rcus spp.), California buckeye (Aescu/us californica), and Pacific madrone (Arbutus menziesit) with one or more mainstems totaling 24 inches diameter or more at 4.5 feet above grade are considered "Large Protected Trees" (LPT). 7. Section 29.10.0965. Prohibitions: A permit is required to prune, trim , cut off, or perform any work, on a sing le occasion or c umulatively, over a three- year period , affecting 25% or more of any Protected Tree (including below ground root system). 8. Section 29.10.0965. Prohibitions: A permit is required to prune, trim, or cut any branch or root greater than four (4) inches in diameter of a Large Protected Tree. 9. Section 29.10.0965. Prohibitions: A permit is required to conduct severe pruning on any protected tree . Severe pruni ng is defined in sectio n 29 .10.0955 as "topping or removal of foliage or significant scaffold limbs or la rg e diameter branches so as to cause permanent damage and/or disfigurement of a tree , and/or which does not meet specific pruning goals and objectives as set forth in the current version of the International Society of Arboriculture Best Management Practices-Tree Pruning and ANSI A300-Part 1 Tree, Shrub, and Other Woody Plant Management-Standard Practices , (Pruning)." 10. Exceptions: Severe Pruning Exception in Town Code section 29.10.101 0(3) " ..... except for pollarding of fruitless mulberry (Morus alba) or other species approved by the Town Arborist. ... ". Site Address: 16491 S. Kennedy Road. Los Gatos. CA Registered Member. American Society of Consulting Arborists and Member of the International Society of Arboriculture C> Walter Levison 2015 All Rights Reserved 13 o f34 Version: 2/1612016 ~J~ ~~!~~f."H~i~~~ I~ .11;~:. ASCA Registered Consulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) liSA Certified Arborist fN/C-3172 cell (415) 203-0990 I drtree@sbcglobal.net Protected Tree Exceptions: a. Edible fruit or nut bearing trees less than 18 inches diameter (multistem total or single stem) b. Acacia melanoxylon (blackwood acacia) less than 24 inches (multistem total or single stem) c . Liriodendron tulipifera (tulip tree) less than 24 inches (multistem total or single stem) d. Ailanthus altissima (tree of heaven) less than 24 inches (multistem total or single stem) e . Eucalyptus globulus (Tasmanian blue gum) less than 24 inches (multistem total or single stem) f . Eucalyptus camaldulensis (River red gum) less than 24 inches (multistem total or single stem) g. Other eucalyptus species (E. spp .) not noted above, less than 24 inches (multistem total or single stem) (REMOVAL O.K. ONLY AT HILLSIDE AREA LOCATIONS PER OFFICIAL TOWN MAP): www.losgatosca.gov/documentcenter/view/176 h. All palm species (except Phoenix canariensis) less than 24 inches (multistem total or single stem) i. Ligustrum lucidum (glossy privet) less than 24 inches (multistem total or single stem) 7.0 Recommendations 1. Project Arborist ("PA"): It is suggested that a third party ASCA registered consulting arborist or ISA Certified Arborist with good experience with tree protection during construction be retained by the applicant, to provide pre-project verification that tree protection and maintenance measures outlined in this section of the arborist report are adhered to. Periodic (e.g. monthly) inspections and summary reporting , if required as a project condition of approval, are suggested in order to verify contractor compliance with tree protection throughout the site plan project. This person will be referred to as the project arborist ("PA"). The PA should monitor soil moisture within the root protection zones of trees being retained, using a Lincoln soil moisture probe/meter or equivalent. If required, inspection reports shall be sent to Ms. Erin Walters, Associate Planner, at ewalters@losgatosca.gov Sample wordage for a condition of approval regarding monitoring of tree protection and tree condition : "The required protective fencing shall remain in place until final landscaping and inspection of the project. Project arborist approval must be obtained and documented in a monthly site activity report sent to the Town. A mandatory Monthly Tree Activity Report shall be sent at least once monthly to the Town planner associated with this project (ewalters@losgatosca.gov ) beginning with the initial tree protection verification approval letter". 2 . Special Project Arborist Activities: It is suggested that the PA perform the following pre-construction and during-construction actions: a . Pre-Project t/R Determination : Determine accurate t/R ratios for both the lower cavity and upper cavity areas on the mainstems of oak #15 using a RESI microdrilling device (or equivalent "advanced decay detection device" as defined in the ANSI A300 standards for tree risk assessment), and make recommendations for maintenance or removal based on analysis of the tree using criteria such as but not limited to tree species, trunk diameter, trunk taper, callus/woundwood development, buttress rooting, canopy vigor, canopy width and profile against prevailing wind directions, and t/R ratios at various elevations. S ite Add ress: 16491 S. Kennedy Road, los Gatos. CA Registered Member. American Society of Consulting Arborists and Member of the International Society of Arboriculture C> Walter Levison 2015 All Rig hts Reserved 14 of 34 Version: 2/16/201 6 ~jb Walter Levison r CO NSULT ING ARBORIS T ASCA Reg istered Consulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) l iSA Ce rti fie d A rborist #WC-3172 b. Pre-Project: Verify protective chain link fencing erection at locations shown on the CTA's tree map . I~ .1.3~~- cell (4 15) 203-0990 I drtree@sbcglobal.net c . Pre or During-Project: Monitor endweight reduction pruning on the south side of oak #15 (if the tree is to be retained). 3. Project Team Actions or Clarifications Requested : a. Tree Plot Survey: Project team shall have the project surveyor accurately plot trunk locations for trees #1 through #12 on the plan sheets for further review by Town planning division Staff and the Contract Town Arborist. Trees #13 through #16 have already been accurately plotted. b. Site Plan Design Adjustments (after accurate tree plot survey is completed by applicant's surveyor): i. Infiltration Trench : Proposed infiltration trench area shall be adjusted westward to achieve an offset that will allow for fencing erection at 5 to 7 feet offset from the trunks of trees #1 and #2. ii. Landscape and Irrigation Plans : Proposed irrigation plan and proposed landscape plan (both currently unavailable for review as of the date of writing) shall be designed such that no work will be performed within 10 linear feet of any tree being retained. Irrigation spray shall be directed in a manner that maintains dry conditions within 10 feet of trees #11, 12, 13, 14, and #15. iii. Retaining Walls: Adjust the proposed uppermost wall location such that it is placed at least 13 linear feet from the trunk edge of oak #15 , so that root zone protection chain link fencing can be erected at 10 to 11 feet from trunk edge. This will provide an offset of two feet which will help avoid excavator bucket tooth tagging of the fence material during work. 4. Tree Valuation (Appraisal) and Tree Security Bond Posting: The values of all trees on and adjacent to the site being retained were determined by the CTA using the trunk formula method as outlin ed in the gth edition of the Guide for Plant Appraisal. Trunk cross sectional area for each tree with multiple main ste ms was ca lculated by totaling th e sum of the cro ss sectional areas of the mainstem s, and entering that number into the trunk formula . Tree Tag Number (Retention Tree s Only) 1 2 3 4 5 6 7 8 9 Site Address: 16491 S. Kennedy Roa d . Los Gatos. CA Registered Member. American Society of Consulting Arb orists and Member of the International Society of Arboriculture Q W alter Levison 2015 All Rights Reserved Appraised Value (Trunk Formula Method) 1 $1670 . $370 . $1190. $1970 . $1690 . $1720. $1370. $2010. $1980. 15of34 Version: 2116f2016 ~J~ ~~!~~f.N!-~~j~~~ A~ ~}~ ":';..":: .·.:. ... ..: .. :.:;..;."-,. ASCA Registered Consulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) l iSA Certified Arborist #WC-3172 cell ( 415 ) 203-0990 I drtree@sbcglobal.net 10 $2100. 11 $2900 . 12 $870. 13 $4200. 14 $1680. 15 $10900. 16 $1400. TOTAL VALUE: $38,020. The CTA suggests that , based on the above appraised dollar values of the trees be ing retained as determined by the CTA, a standard tree security bond be posted by the applicant with the City in the amount of $25,000, wh ich is significantly less than the total appraised value of the sixteen (16) trees noted above as being retained on and adjacent to the site. The Town code provides a mechanism that can requ ire bond posting by a project applicant in the amount of $5,000 per tree being retained, or $25,000, whichever is less . 5. Trunk Buffer Type Ill Protection: Install a trunk buffer around the lowermost 8 to 10 feet of the trunks of the following on-site trees that are to be retained in very close proximity to construction (trees #1 and #2). Wrap approximately 20 wraps of orange plastic snow fencing around the trunk between grade and 8 feet above grade to create a padding at least 1 to 2 inches thickness . Stand 2x4 wood boards upright, side by side, around the entire circumference of the trunk . Affix using duct tape {do not use wires or ropes). See spec image above right. 6. Chain Link Fencing Type I and/or Type II Protection: Erect five-foot tall chain link fence on seven-foot long, two-inch diameter iron tube posts pounded 24 inches into the ground (see sample image at right). Pre-construction fence: Per the red dashed lines on the tree map in the CT A's arborist report, around root zones of all trees being retained. Site Address: 16491 S. Kennedy Road. Los Gatos. CA Registered Member, American Society of Consulting Arborists and Member of the International Society of Arboriculture C Walter Levison 2015 All Rights Reserved 16of 34 Version: 2/16/2016 ~J)J ~~!~~~N ~~~ig!?~ ASCA Reg istered Consulting Amorist #40 1 / Tree Risk Assessment Qualified (TRAQ) /I SA Certified Amorist #WC-31 72 Approximate distances from fence to trunk: Tree Tag Distance from trunk edge to chain link root protection Number zone fence 1 5 to 7 feet 2 5 to 7 feet 3 5 to 7 feet 4 5 to 7 feet 5 5 to 7 feet 6 7 feet 7 7 feet 8 7 feet 9 10 feet 10 10 feet 11 20 feet 12 10 feet 13 10 feet 14 8 feet 15 1 0 to 15 feet (see tree map in CT A report) 16 10 feet This fencing must be erected prior to any heavy machinery traffic or construction material arrival on site. The protective fencing must not be temporarily moved during construction. No materials , tools, excavated soil, liquids , substances, etc. are to be placed or dumped, even temporarily, inside the root protection zone or "RPZ". No storage. staging , work. or other activities will be allowed inside the RPZ (such as storm drain pipe strapping) except with PA monitoring. For the areas uphill from trees #1 through #1 0. silt fence shall be installed per package directions tucked under the soil on the uphill side of the fence. with a straw wattle pinned down over the bottom of the silt fence edge as additional protection against soil flows and soil slu mping into the root protection zone area (see images at right): Signage: The RPZ fencing shall have one sign affixed with UV-stabilized zip ties to the chain link at eye level for every 20 -linear feet of fencing, minimum 8 "X11 " size each , plastic laminated , with wordage that includes the Town Site Address: 16491 S. Kennedy Road. Los Gatos. CA Registered Member. American Society of Consulting Arborists and Member of the International Society of Alboriculture C> Walter Levison 2015 All Rights Reserved I '~ ~~~ '"--~ ........... . -··· ·-· .. --... . cell (415) 203-0990 I drtree@sbcgloba l.net Version: 2/16/2016 ~Jb Walter Levison r CONSUL T ING A RB O R IST '\\. Gil~_ ASCA Registered Consulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) l iSA Certified Arbori st #WC-3172 cell (415) 203-0990 I drtree@sbcglobal.net Code section that refers to tree fence protection requirements (wordage can be adjusted): TREE PROTECTION ZON E FENC E ZONA DE PROTECCION PARA ARBOLES -NO ENTRE SIN PERMISO- ·LLAME EL ARBOLISTA- REMOVAL OF THIS FENCE IS SUBJECT TO PENAL TV ACCORDING TO LOS GATOS TOWN CODE 29.10.1025 PROJECT ARBORIST: TELEFONO CELL: Site Address: 16491 S. Kennedy Road, Los Gatos. CA Registered Member, American Socie ty of Consulting Arbolists and Member of the International Society of Arboriculture C> Walter Levison 2015 All Rights Reserved EMAIL: 18of34 Version: 2/1612016 ~)J ~~!~~;,"H~ig~R ASCA Regist ered Consulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) l iSA Certified Arborist #WC-31 72 7. Irrigation Temporary During Construction : ~~ ~~~ .. _ .............. .------· cell (415) 203-0990 I drtree@sbcglobal.net Apply temporary irrigation to trees being retained , at a frequency and duration or total output specified in the following matrix: Tree Tag Number Species Distance from Trunk to Irrigation Frequency Volume per Irrigation Event Irrigate (rough approx.) 4 Coast redwood Zero to 1 0 feet 1 x/week heavv 30 to 50 qallons 5 Coast redwood Zero to 1 0 feet 1 x/week heavv 30 to 50 qallons 6 Coast redwood Zero to 1 0 feet 1 x/week heavv 30 to 50 qallons 7 Coast redwood Zero to 1 0 feet 1 x/week heavv 30 to 50 qallons 8 Coast redwood Zero to 1 0 feet 1 x/week heavv 30 to 50 qallons 9 Coast redwood Zero to 1 0 feet 1 x/week heavv 30 to 50 qallons 10 Coast redwood Zero to 1 0 feet 1 x/week heavv 30 to 50 qallons 13 Coast live oak 5 to 15 feet 1 x/month heavv 100 qallons 14 Coast live oak 5 to 15 feet 1 x/month heavv 100 qallons 15 Coast live oak 10 to 20 feet 1 x/month heavv 250 oallons 1_6 ____ -~ _ Mont~~y pine __ Zero to 20 feet -~ 1 x/week heavy 60 gallons --------------- Method of water delivery can be soaker hose, emitter line, garden hose trickle, water truck, tow-behind water tank with spray apparatus , etc. 8. Pruning & Fertilization: The project arborist (PA) s hall monitor pruning work by a qualified tre e care company performing branch endweight reduction pruning to reduce lengths of southward lopsided sections of the canopy of oak #15. The goal is to reduce load forces acting on the open cavity areas of the main stems by removing the outermost section s of the canopy to s horten the extension of the canopy, focusing on the area that currently extends southward. All pruning shall be performed only by, o r under direct full time supervi s ion of an ISA Certified Arbori st , and shall conform to the mos t current iteration of the American National Standard Institute pruning guidelines and accompanying ISA Best Management Practices Pruning booklet: • ANSI A 300 (Part 1) tree, shrub, and other wood plant maintenan ce I standard practices (pruning). 2001 . Site Address: 1649 1 S . Kennedy Road . Los Gatos, CA Registered Member, American Sodety of Consu lting Arborists and Member of the Intern ational Society of Arboriculture C> W alter Levison 2015 All Rights Reserved 19of 34 Version : 2/1612016 ~~ ~~!~~f,N ~~~i~~~ '\\ ~~~ ... _, .. , ............... . _ ....... -... -...... .. ASCA Registered Consult ing Arborist #401 I T ree Ris k Assessment Qualified (TRAQ) l i SA Certified Arborist #WC-3172 cell (415) 203-0990 I drtree@sbcglo ba l.net • Best Management Practices I Tree Pruning : companion publ ication to the ANSI A300 Part 1: tree, shrub , and other wood plant maintenance I standard practices (pruning). International Society of Arboriculture . 2002 . Oaks #13, 14, and #15 shall rece ive soil injection fertilization using Greenbelt 22-14-14 throughout their entire rooting areas, at label mix rate, and industry standard injection hole spacing and application volume. See ANSI A300 standards for fertilization for more information. 9 . Root Pruning : If woody roots measuring greater than 1-inch in diameter are encountered within 20 -feet of any tree bei ng retained during site work , contractors shall immediately alert the project arborist, and shall pro ceed to sever roots at right angles to the direction of root growth using sharp hand tools such as professional grade loppers , hand shears, chain saw, NC sawzall , or other tools only under his/he r direct supervision . See spec images at right. Woody roots shall not be shattered or broken in any way as a result of site a ctivities. Shattered or broken areas shall be hand dug back into clear healthy root tissue and re-severed at right angles to root growth direction under the dire ct supervision of the proj ect arborist (PA ). 10. Water Spray: Spray off foliage of all trees with in 30 feet of construction activity using a very high power garden hose or a pres sure washer system set on low pres sure to wash both the upper and lower surfaces of foliage . This he lps keep the gas portals (stomata) un clogged for better gas exchange which is cru cial for normal tree function (see image at right in wh ich a fire hose system was used to wash appro ximately 50 redwood tree specimens in Sunnyvale during a one year long demolitio n period ). Spray should be applied approximately once monthly, or when ambient airborne dust concentration is unusually high. Site Address: 16491 S. Kennedy Road, Los Gatos, CA Registered Membe r, American Society of Consulting Arborists and Member of the International Sooety of Arboriculture C> Walter Levison 2015 All Rights Reserved 20 of 34 V ersi on: 2/1612016 ~jb Walter Levison r CONSU LT IN G ARBORIST ASCA Registered Consulting Arborist #401 I Tree Risk Assessment Qualified (T RAQ) liSA Certified Arborist #WC-3172 11 . Landscape Plan Notes: General "Best Management Practice " specification for new tree installations: • Remove all girdling roots and circling roots and scarify the rootball prior to installation . • Elevation of the top of rootball should be approximately 1 to 2 inches above surrounding grade at sites with heavy clay soil. • Ensure that the trunk flares (woody buttress root flares) are present and exposed at the base of trunk . Perform cursory root crown excavation to expose the flares if they are not visible. • Double 2-inch diameter stakes. • Cinch-tie ™ rubber tree ties , in double figure eight format ion . • Cut stakes down to just above the Cinch tie elevation to avoi d wind sway damage to tree. • Two (2) high volume output professional grade flood bubblers placed directly over the rootball. • Soil berm built over the edge of the rootball so that irrigation water is forced to percolate directly downward into the rootball via gravity. • Mulch covering the berm and surrounding soil. • Leave some or all temporary branches as-is at low elevations until tree is established 12 to 24 months post-planting. • Remove stakes and ties after tree is established, approxi mately 12 to 24 months post- planting . 8.0 Tree Protection and Maintenance Directions per Town Code I~ ~~~ "::.;:·:-:..~.:..·.: .. ::~~ cell (4 15) 203-0990 I drtree@sbcglobal.net The following is excerpted directly from the 2015 iteration of the Town of Los Gatos tree ord inance sections which provide specific tree protection directions and limitations on root pruning and above-ground pruning : Sec. 29.10.1000. New property development. (a) A tree survey shall be conducted prior to submittal of any development application proposing the removal of or impact to one or more protected trees. The development application shall include a Tree Survey Plan and Tree Preservation Report based on this survey. The tree survey inventory numbers shall correspond to a numbered metal tag placed on each tree on site during the tree survey. The tree survey p lan shall be prepared by a certified or co nsulting arborist , and shall include the following information: (1) Location of all existing trees on the property as described in secti on 29.1 0.0995 ; (2) Identify all trees that could potentially be affected by the proj ect (directly or indirectly-immedia tely or in long term ), such as upslope grading or compaction outside of the dripline ; (3) Notation of all trees classified as protected trees; Site Address: 16491 S. Kennedy Road. Los Gatos, CA Registered Member. American Society of Consulting Alborists and Member of the International Society of Arboricultu re 0 Walter Levison 2015 All Rights Reserved 21 of 34 Version: 2/1612016 ~J~ ~~!t~~N~~~;,i~2~ ASCA Registered Consulting Arborist #401 / Tree Risk Assessment Qualified (TRAQ) /ISA Certified Arborist #WC-3172 ·~ ~}A "':::.:: ·.::.'".;""..:.·:..::: .. cell (4 15) 203-0990 I drtree@sbcglobal.net (4) In addition, for trees four (4) inches in diameter or larger, the plan shall specify the precise location of the trunk and crown spread , and the species, size (diameter, height, crown spread) and condition of the tree . (b) The tree survey plan shall be reviewed by the Town 's consulting arborist who shall, after making a field visit to the property, indicate in writing or as shown on approved plans , which trees are recommended for preservation (based on a retention rating of high/moderate/low) using, as a minimum , the Standards of Review set forth in section 29 .10.0990. This plan shall be made part of the staff report to the Town reviewing body upon its consideration of the application for new property development; (c) When development impacts are within the dripline of or will affect any protected tree, the applicant shall provide a tree preservation report prepared by a certified or consulting arborist. The report , based on the findings of the tree survey plan and other relevant information , shall be used to determine the health and structure of existing trees, the effects of the proposed development and vegetation removal upon the trees, recommendations for specific precautions necessary for their preservation during all phases of development (demolition , grading, during construction , landscaping); and shall also indicate which trees are proposed for removal. The tree preservation report shall stipulate a required tree protection zone (TPZ) for trees to be retained, including street trees , protected trees and trees whose canopies are hanging over the project site from adjacent properties. The TPZ shall be fenced as specified in section 29.10.1005 : (1) The final approved tree preservation report shall be included in the building permit set of development plans and printed on a sheet titled : Tree Preservation Instructions (Sheet T -1 ). Sheet T -1 shall be referenced on all relevant sheets (civil , demolition , utility, landscape , irrigation) where tree impacts from improvements may be shown to occur; (2) The Town reviewing body through its site and design plan review shall endeavor to protect all trees recommended for preservation by the Town 's consulting arborist. The Town reviewing body may determine if any of the trees recommended for preservation should be removed , if based upon the evidence submitted the reviewing body determines that due to special site grading or other unusual characteristics associated with the property, the preservation of the tree(s) would significantly preclude feasible development of the property as described in section 29.1 0.0990 ; (3) Approval of final site or landscape plans by the appropriate Town reviewing body shall comply with the following requirements and conditions of approval : a. The applicant shall, within ninety (90) days of final approval or prior to issuance of a grading or building permit, whichever occurs first , secure an appraisal of the condition and value of all trees included in the tree report affected by the development that are required to remain within the development using the Tree Value Standard methodology as set forth in this Chapter. The appraisal of ea ch tree shall recognize the location of the tree in the proposed development. The appraisal shall be performed in accordance with the current edition of the Guide for Plant Appraisal published by the Council of Tree and Landscape Appraisers (CTLA) and the Species and Group Classification Guide published by the Western Chapter of the International Society of Arboriculture . The appraisal shall be performed at the applicant's expense , and the apprai sa l shall be subject to the Director's approval. b. The site or landscape plans shall indicate whic h trees are to be removed . However, the plans do not constitute approval to remove a tree until a separate permit is granted. The property owner or applicant shall obtain a protected tree removal permit, as outlined in section 29.10.0980 , for each tree to be removed to satisfy the purpose of this divi sion. (d) Prior to acceptance of proposed development or subdivis ion improvements, the developer shall submit to the Director a f inal tree preservation report prepared by a certified or consulting arborist. This report shall consider all trees that were to remain within the development. The report shall note the trees' health in relation to the initially reported condition of the trees and shall note any changes in the trees' numbers or physical conditions. The applicant will then be responsible for the loss of any tree not previously approved for removal. For protected trees, which were removed , the Site Address: 16491 S. Kennedy Road. Los Gatos. CA Registered Member. American Society of Consulting Arborists and Member of the International Society of Arboriculture C Walter Levison 2015 All Rights Reserved .u.of 34 Version: 2/1612016 ~J)J ~~!~~~N~~~i~2~ ASCA Registered Consulting Arborist #401 / Tree Risk Assessment Qualified (TRAQ) /ISA Certified Arborist #WC-3172 I~ ~}A ...__ .... _ ........... ~ .. .............. , ............ . cell (415) 203-0990 I drtree@sbcglobal.net developer shall pay a penalty in the amount of the appraised value of such tree in addition to rep lacement requirements contained in section 29.10.0985 of this Code. The applicant shall remain responsible for the health and survival of all trees within the development for a period of five (5 ) years following acceptance of the public improvements of the development or certificate of occupancy. (e) Prior to issuance of any demolition , grading or building permit, the applicant or contractor shall submit to the Building Department a written statement and photographs verifying that the required tree protection fence is installed around street trees and protected trees in accordance with the tree preservation report. (f) If required by the Director and conditioned as part of a discretionary approval, a security guarantee shall be provided to the Town. Prior to the issuance of any permit allowing construction to begin , the applicant shall post cash , bond or other security satisfactory to the Director, in the penal sum of five thousand dollars ($5,000.00) for each tree required to be preserved, or twenty-five thousand dollars ($25,000.00), wh ichever is less. The cash , bond or other security shall be retained for a period of one (1) year following acceptance of the public improvements for the development and sha ll be forfeited in an amount equal to five thousand dollars ($5,000.00) per tree as a ci vil penalty in the event that a tree or trees required to be preserved are removed, destroyed or severely damaged . (g) An applicant with a proposed development which requires underground utilities shall avoid the installation of said utilities within the dripline of existing trees whenever possible. In the event that this is unavoidable, all trenching shall be done us ing directional boring , air-spade excavation or by hand , taking extreme caution to avoid damage to the root structure. Work within the dripline of existing trees shall be supervised at all times by a certified or consulting arborist. (h) It shall be a violation of this division for any property owner or agent of the owner to fail to comply with any development approval condition concerning preservation, protection, and maintenance of any protected tree. (Ord . No. 2114, §§I, II, 8-4-03) Sec. 29.10.1 005. Protection of trees during construction. (a) Protective tree fencing shall specify the following: (1) Size and materials. Six (6) foot high chain link fencing, mounted on two-inch diameter galvanized iron posts , shall be driven into the ground to a depth of at least two (2) feet at no more than 1 0-foot spacing. For paving area that will not be demoli shed and when stipulated in a tree preservation plan, posts may be supported by a concrete base . (2) Area type to be fenced. Type 1: Enclosure with chain link fencing of either the entire dripline area or at the tree protection zone (TPZ), when specified by a certified or consulting arborist. Type II: Enclosure for street trees located in a planter strip: chain link fence around the entire planter strip to the outer branches. Type Ill : Protection for a tree located in a small planter cutout only (such as downtown): orange plastic fencing shall be wrapped around the trunk from the ground to the first branch with 2-inch wooden boards bound securely on the outside . Caution shall be used to avoid damaging any bark or branches. (3) Duration of Type I, II, Ill fencing . Fencing shall be erected before demolition, grading or construction permits are issued and remain in place until the work is completed. Contractor shall first obtain the approval of the project arborist on record prior to removing a tree protectio n fence . (4) Warning sign. Each tree fence shall have prominently displayed an 8.5 x 11-inch sign stating : 'Warning-Tree Protection Zone-this fence shall Site Add ress: 16491 S. Kennedy Ro ad , los Ga tos, CA Registered Member, American Soci ety of Consulting Arborists and Member of the In ternational Society of Arboriculture 0 Walter Lellison 2015 All Rights Reserved 23of 34 Version : 2/16/2016 ~J~ ~~!~~U:~~i;~~ ASCA Registered Consulting Arborist #401 / Tree Risk Assessment Qualified (TRAQ) /ISA Certified Arborist #WC-3172 not be removed and is subject to penaltyaccordingtoTownCode29.10.1025". (b) All persons , shall comply with the following precautions : ~~ ~IA .. _ .................. . ........... . , __ .... ____ , cell (415) 203-0990 I drtree@sbcglobal.net (1) Prior to the commencement of construction , install the fence at the dripline, or tree protection zone (TPZ) when specified in an approved arborist report, around any tree and/or vegetation to be retained which could be affected by the construction and prohibit any storage of construction materials or other materials, equipment cleaning, or parking of vehicles within the TPZ. The dripline shall not be altered in any way so as to increase the encroachment of the construction. (2) Prohibit all construction activities within the TPZ, including but not limited to: excavation, grading, drainage and leveling within the dripline of the tree unless approved by the Director. (3) Prohibit disposal or depositing of oil , gasoline, chemicals or other harmful materials within the dripline of or in drainage channels , swales or areas that may lead to the dripline of a protected tree. (4) Prohibit the attachment of wires , signs or ropes to any protected tree. (5) Design utility services and irrigation lines to be located outside of the dripline when feasible. (6) Retain the services of a certified or consulting arborist who shall serve as the project arborist for periodic monitoring of the project site and the health of those trees to be preserved. The project arborist shall be present whenever activities occur which may pose a potential threat to the health of the trees to be preserved and shall document all site visits. (7) The Director and project arborist shall be notified of any damage that occurs to a protected tree during construction so that proper treatment may be administered . (Ord . No. 2114, §§ I, II , 8-4-03) Sec. 29.10.101 0. Pruning and maintenance. All pruning shall be in accordance with the c urrent version of the International Society of Arboriculture Be st Management Practice s-Tree Pruning and ANSI A300-Part 1 Tree, Shrub and Other Woody Plant Management-Standard Prac tices, (Pruning) and any special conditions as determined by the Director. For developments, which require a tree preservation report, a certified or consulting arborist shall be in rea sonable charge of all activities involving protected trees , including pruning , cabling and any other work if specified . (1) Any public utility installing or maintaining any overhead wires or underground pipes or conduits in the vicinity of a protected tree shall obtain permission from the Director before performing any work, including pruning, which may cause injury to a protected tree. (e.g. cable TV/fiber optic trenching, gas, water, sewer trench, etc.). (2) Pruning for clearance of utility lines and en ergized condu ctors shall be perform ed in compliance with the current version of the American National Standards Institute (ANSI) A300 (Part 1 )-Pruning, Section 5.9 Utility Pruning . Using spikes or gaffs when pruning , except where no other alternative is available , is prohibited . (3) No person shall prune , trim, cut off, or perform any work , on a single oc casion or cumulatively, over a three-year p eriod , affecting twenty-five percent or more of the crown of any protected tree without first obtaining a permit pursuant to thi s division except for pollarding of fruitle ss mulberry trees (Morus alba) or other species approved by the Town Arborist. Applic ations for a pruning permit shall include photographs indicating S it e Address: t 6491 S. Kennedy Road. Los Gatos. C A Registered Member. American Society of Consulting Arborisls and Member of the In ternational Society of Arboriculture ~Wa lter Levison 2015 All Ri ghts Reserved 24 of34 Version: 2/1612016 ~)~J ~~!~~r,N~~~j~~~ ''-\ ~}A ......... ~ ....... IOH o•a _ ...... __ .. __ , ..... ASCA Reg istered Consulting Arborist #401 I T ree Risk Assessment Qua lified (TRAQ) l iSA Certified Arborist #WC-3172 cell (415) 203-0990 I drtree@sbcglobal.net where pruning is proposed. (4} No person shall remove any Heritage tree or large protected tree branch or root through pruning or other method greater than four (4} inches in diameter (12.5" in circumference} without first obtaining a permit pursuant to this division. (Ord. No. 2114, §§I, II , 8-4-03} 9.0 Tree Replacement Standards -Los Gatos Town Code (Excerpted from Town Code 29.10 .0985 and 29.1 0.0987) (1} Two (2} or more replacement trees , of a species and size designated by the Director, shall be planted on the subject private property. Table 3-1 The Tree Canopy-Replacement Standard shall be used as a basis for this requirement. The person requesting the permit shall pay the cost of purchasing and planting the replacement trees. (2} If a tree or trees cannot be reasonably planted on the subject property, an in-lieu payment in an amount set forth by the Town Council by reso lu tion shall be paid to the Town Tree Replacement Fund to: a. Add or replace trees on public property in the vicinity of the subject property; or b. Add or replace trees or landscaping on other Town property; or c. Support the Town 's urban forestry management program . (Ord . No. 2114, §§ I, II , 8-4-03} Table 3-1 -Tree Canopy-Replacement Standard ,--· ,---· ----- Replacement J Single Family ~~uire~~nt2,4 -----___ ::;~:::::;~nt -···-·--·······------- Canopy Size of Removed Tree 1 1 0 feet or less Two 24 inch box trees Two 15 gallon trees ------------·------- More than 10 feet to 25 fe et I Three 24 inch box trees Three 15 gallon trees --------t;-~~-r -24-inc~-b-o~~es·· or____ ----------------------- More than 25 feet to 40 f_eet I T~o 36 inch bo x trees ' Four 1 ~-=-allo~-trees _________ _ I Six 24 inch box trees; 1· More than 40 feet to 55 feet :or !hree 36 inch b_ox -----Not ~vaila~~:_ ___________ _ iTen 24 inch box trees; or T . I Greater than 55 feet I Five 36 i nch box trees I Not Available J ----' __________________ ) ____________________________ _ Site Address: 16491 S. Kennedy Road , Los Gatos. CA Registered Member. American Society of Consulting Arborists and Member of the International Society of Arboriculture C> Walter Levison 2015 All Rights Reserved 25 of34 Version: 2/1612016 ~b Walter Levison r CO NSULT I NG ARBORIST '\\ ~~A ~::::: ·.::.;.: .. :.·..:..:: .. ASCA Registered Consulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) l iSA Certified Arborist #WC-3172 cell (415) 203-0990 I drtree@sbcglobal.net Notes 1To measure an asymmetrical canopy of a tree, the widest measurement shall be used to determine canopy size . 2often, it is not possible to replace a single large, older tree with an equivalent tree(s). In this case , the tree may be replaced with a combination of both the Tree Canopy Replacement Standard and in-lieu payment in an amount set forth by Town Council resolution paid to the Town Tree Replacement Fund . 3single Family Residential Replacement Option is available for developed single family residential lots under 10,000 square feet that are not subject to the Town's Hillside Development Standards and Guidelines . All 15-gallon trees must be planted on-site. Any in-lieu fees for single family residential shall be based on 24" box tree rates as adopted by Town Council. 4 Replacement Trees shall be approved by the Town Arborist and shall be of a species suited to the available planting location , proxi mity to structures, overhead clearances, soil type , compatibility with surrounding canopy and other relevant factors . Replacement with native species shall be strongly encouraged. Replacement requirements in the Hillsides shall comply with the Hillside Development Standards and Guidelines Appendix A and Section 29.10 .0987 Special Provisions--Hillsides. Sec. 29.10.0987. Special Provisions-Hillsides The Town of Los Gatos recognizes its hillsides as an important natural resource and sensitive habitat which is also a key component of the Town's identity, character and charm. In order to maintain and encourage restoration of the hillside environment to its natural state, the Town has established the following special provisions for tree removal and replacement in the hillsides: (1) All protected trees located 30 or more feet from the primary residence that are removed shall be replaced with native trees listed in Appendix A Recommended Native Trees for Hillside Areas of the Town of Los Gatos Hillside Development Standards and Guidelines (HDS&G). (2) All protected trees located within 30 feet of the primary residence that are removed shall be replaced as follows : (a) If the removed tree is a native tree listed in Appendix A of the HDS&G, it shall only be replaced with a native tree listed in Appendix A of the HDS&G . (b) If the removed tree is not listed in Appendix A, it may be replaced with a tree listed in Appendix A, or replaced with another species of tree as approved by the Director. (c) Replacement trees listed in Appendix A may be planted anywhere on the property. (d) Replacement trees not listed in Append ix A may only be planted within 30 feet of the primary residence. (3) Replacement requirements shall comply with the requirements in Table 3-1 Tree Canopy Replacement Standard of this Code . (4) Property owners should be encouraged to retain dead or declining trees where they do not pose a safety or fire hazard, in order to foster wildlife habitat and the natural renewal of the hillside environment. Site Address: 16491 S . Kennedy Road, Los Gatos. CA Registered Member. American Society of Consulting Arborists and Member of the International Society of Arboriculture c Walter Levison 201 5 All Rights Reserved 26 of34 Version: 2/16120 16 ~J)J ~~!t~;,N ~~~.i;~~ I~ .~t~. ASCA Regi stered Consulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) l iSA Certified Arbo rist #WC-3172 cell (415) 203-0990 I drtree@sbcglobal.net 10.0 Author's Qualifications • Continued education through The American Society of Consulting Arborists , The Internationa l Society of Arboriculture (Western Chapter ), and various governmental and non-governmental entities. • Contract Town Arborist , Town of Los Gatos , California Community Development Department I Planning Division 2015-present • Tree Risk Assessment Qualified (ISA TRAQ Course Graduate, Palo A lto, Cal iforn ia ) • Millbrae Community Preservation Commission (Tree Board) 2001-2006 • ASCA Registered Consulting Arborist #401 • ASCA Arboriculture Consulting Academy graduate, class of 2000 • Associate Consulting Arborist Barrie D. Coate and Associates 4/99-8/99 • Contract City Arborist, City of Belmont, California Planning and Community Development Department 5/99-present • ISA Certified Arborist #WC-3 172 • Peace Corps Soil and Water Conservation Extension Agent Chiangmai Province , Thailand 1991 -1993 • B.A. Environmental Stud ies/Soil and Water Resources UC Santa Cruz, Santa Cruz, California 1990 (My full curriculum vitae is available upon request) Site Address: 16491 S. Kennedy Road, Los Gatos, C A Registered Member, American Society of Consulting Art>orists and Me mber of the Internationa l Society of Arboriculture C> W alter Levison 20t 5 All Ri ghts Reserved 27 of 34 Version: 2/16120 16 ~J)J Walter Levison CO NSULTING AR B OR IS T ASCA Registered Consulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) l iSA Certified Arborist #WC-3172 11.0 Assumptions and Limiting Conditions ~\ ·--· .. ~-... -___ ,._.. __ ... cell (415) 203-0990 I drtree@sbcglobal.net Any legal description provided to the consultant/appraiser is assumed to be correct. An y titles and ownership to any property are assumed to be good and marketable. No responsibility is assumed for matters legal in character. Any and all property is appraised and evaluated as through free and clean , under responsible ownership and competent management. It is assumed that any property is not in violation of any applicable codes, ordinance , statutes , or other government regu la tions. Care has been taken to obtain all information from reliable sources. All data has been verified ins ofar as possible ; however, the consultant/appraiser can neither guarantee nor be responsible fo r the accuracy of information provided by others. The consultant/appraiser shall not be required to give testimony or to attend court by re ason of th is report unless subsequent contractual arrangements are made, including payment of an additional fee for such services as described in the fee schedule and contract of engagement. Unless required by law otherwise , the possession of this report or a copy thereof does not imply right of publication or use fo r any other purpose by any other than the person to whom it is addressed , without the prior expressed written or ve rbal consent of the consultant/appraiser. Unless required by law otherwise , neither all nor any part of the contents of this report, nor copy thereof, shall be conveyed by anyone , including the client, to the publi c through advertising , publ ic relations, news , sales , or other media, without the prior expressed conclusions , identity of the consultant/appraiser, or any reference to any professional society or institute or to an y initiated designation conferred upon the consultant/appraiser as stated in his qualifications. This report and any values expressed herein represent the opinion of the consultant/appraiser, and the consultant'sl appraiser's fee is in no way contingent upon the reporting of a specified value , a stipulated result, the occurrence of a subsequent event, nor upon any finding to be reported . Sketches , drawings, and photographs in this report, being intended for visual aids, are not necessarily to scale and should not be construed as engineeri ng or architectural reports or surveys unless expressed otherwise. The reproduction of any information generated by engineers, architects, or other con su ltants on any sketches , drawing s , or photographs is fo r the express purpose of coordination and ease of reference only. Inclusion of said information on any drawings or other documents does not constitute a representation by Walter Levison to the sufficiency or accuracy of said information. Unless expressed otherwise : a . information contained in this report covers only those item s that were examined and reflects the conditions of those items at the time of inspe ction ; and b . the inspection is limited to vis ual 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 . Loss or alteration of any part of this report invalidates the entire report. Arborist Disclosure Statement A rborists are tree specialists who use their education, knowledge, training , and experience to examine trees , recommend measures to enhance the beauty and hea lth of trees , and attempt to reduce the risk of living near trees. Clients may choose to accept or disregard the recommendations of the arborist , or to s eek additional advice . Arborists cannot detect every condition that could possibly lead to the structural failure of a tree. Tree are living organisms that fail in ways we do not fully understand . Cond itions are often hidden within trees and below ground . Arborist cannot guarantee that a tree will be healthy or safe under all circumstances, or for a specified period of time. Li kewise, remedial treatm ent s, like any medicine, cannot be guaranteed. Treatment , pruning , and removal of trees may involve considerations beyond the scope of the arborist's services such as property boundaries , property ownership, site lines, disputes betwee n neighbors , and other issues . Arborists cannot take such considerations into account un less complete and accu rate information is disclosed to the arborist. An arborist should then be expected to reasonably rely upon the completeness and accuracy of the information provided. Trees can be managed , but they cannot be controlled . To live near trees is to accept some degree of risk. The only way to eliminate all risk associated with trees is to e liminate th e trees. Site Address: 16491 S . Kennedy Road. Los Gatos, CA Registet'ed Membet', America n Society of Consulting Arborists and Member of the lntet'national Society of Arboriculture C> Walter Levison 2015 All Rights Reserved 28 of34 Version: 211612016 ~J~ Walter Levison CONSU LT ING A RB O RI ST ~~\ ~fA ---==: ~.::.·_., ... :.:.:.:..:. ... AS CA Regi stered Consulting Arborist #401 I Tree Risk Assessment Qual ified (TRAQ) l iSA Certified Arborist #WC-3172 cell (415) 203-0990 I drtree @sbcglobal.net 12.0 Certification I hereby certify that all the statements of fact in this report are true, complete, and correct to th e be st of my knowledge and belief, and are made in good faith. Signature of Consultant 13.0 Digital Images WLCA archived images of survey trees on 2/16/2016 1 Site Address: 16491 S . Kennedy Road , Los Gatos, CA Registered Membe<, American Society of Consulting Arborists and Member of the lnternafi onal Society of Arboriculture Cl Walter Levison 2015 All Rights Reserved 2 is obscured 29 of 34 Version: 2/1612016 ~~J Walter Levison CO N SU LTING ARBORIST ASCA Registered Consu lting Arborist #401 / Tree Risk Assessment Qualified (TRAQ) /ISA Certified Arborist #WC-3172 3 5 Site Address: 16491 S. Kennedy Road, Los Gatos. CA Registered Member, American Society of Consulting Arborists and Merrber of the International Society of Arboriculture C> Walter Levison 2015 All Rights Reserved 4 6 30 of34 A~ cell (415) 203-0990 I drtree@sbcglobal.net Version: 2/1612016 ~J~ Walter Levison CO NSULTING AABORIST ASCA Registered Consulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) l iSA Certified Arborist #WC-3172 7 9 Site Address : 16491 S. Kennedy Road , Los Gatos, CA Registered Member, American Society of Consulting Artlorists and Member of the International Society of Arboriculture C> Walter Levison 2015 All Rights Reserved 8 10 31 of34 ~~ ....... _ ....... ~ ....... -·····-·--·- cell (4 15) 203-0990 I drtree@sbcgloba l.net Version: 2/1612016 ~J~ Walter Levison CONSULTING ARBORIST ASCA Registered Consulting A rborist #401 I Tree Risk Assessment Qualified (TRAQ) liSA Certified Arborist fi\NC-3172 11 13 Site Address: 16491 S. Kennedy Road , Los Gatos , CA Registered Member, American Society of Consulting Arborists and Member of the International Society of Arboricutture C> Waller Levison 2015 All Rights Reserved 12 14 32 of34 '~ ~}A .... _ .. , •• , ... ., .. h.-0 ................. ..,_,_ ... cell (415) 203-0990 I drtree@sbcglobal.net V ersion: 2/1612016 ~J)J Walter Levison CO N SUL TING ARBORIST ASCA Registered Consulti ng Arborist #401 I Tree Risk Assessment Qualified (TRAQ ) liSA Certified Arborist #WC-3172 R to L 4 , 5, 6, 7 ,8 15 Site Address: 16491 S. Kennedy Road . Los Gatos. CA Registered Member, American Sodety of Consulting Atborisls and Member of the International Sodety of Arboriculture C> Walter Levison 2015 All Rights Reserved 33of34 R to L 6 , 7 , 8 , 9 , 10 15 I ~ .~t£f.~:. cell (415) 203-0990 I drtree@sbcglobal.net Version: 2/16/2016 ~J~ Walter Levison CONSULTING ARBORIST ASCA Registered Consulting Arborist #401 I Tree Risk Assessment Qualified (TRAQ) l iSA Certified Arborist #WC-3172 15 15 view Site Address: 16491 S. Kennedy Road, Los Gatos, CA Registered Member. American Society of Consulting ArbOiists and Member of the International Society of Arboriculture C Walter Levison 2015 All Rights Reserved 16 34of34 ,~ -~t~. cell (415) 203·0990 I drtree@sbcglobal.net Version: 2/16/2016 CQG CANNON DESIGN GROUP October 20, 2015 Ms. Erin Walters Community Development Department Town of Los Gatos 110 E. Main Street L os Gatos, CA 95031 RE: 16491 South Kennedy Road D ear Erin: ARCHITECTURE PLA NNING URBAN DESIGN RECEIVED OCT 2 0 ZO L ?-II?-0-I -I TOWN OF LOS G ATOS PLANNING DIVISION I reviewed the drawings, and examined the site context via Google Earth and Streetview. My comments and recommen- dations are as follows: Neighborhood Context The site i s very large and is located in an area characterized by large lots and large one and two story homes. 700 LAR KSPU R LAN DI NG CI RCL E . SUI TE 199 . LA RK SPUR. CA. 94939 EXHIBIT 9 TE L: 41 5 .3 31 .3 795 CDGPLAN@Pt\C BE I L.NET 16491 Sou th Kennedy Road Design Review Commems Oct ober 20, 2015 Page 2 The project consist s of changing the architectural style of the existing house from Tudor to Mediterranean Style without add- ing size or bulk to the home. The existing house and its surro unding context is shown in the photo below. CANNON DE SIGN GROUP 7 0 0 LA RK SPU R LANDING CI RC LE . SUITE 19 9 . LAR KSPUR . CA . 94 939 Issues and Recommendations 16491 South Kennedy Road Design Revi ew Comments October 20, 20 15 Page 3 Since the changes to the existing house appear to be cosmetic only, I fou n d only one issue. T h e new stone base is limited to three sides of th e house which is not consistent with Residential Design Guid eline 3.2.2 which calls for materials to be carried around all sides of the house and Residential Design Guideline 3.8.4 which calls for materia l changes to be made at interior corners. Recommendauo n : Carry the stone ba se a round a ll s1des of the house. Stone base ends at an outside corner EAST ELEVATION WEST ELEVATION Erin, p lease let me know if you have any questions, or if there are other iss ues th at I did n ot address. Sincerely, CANNON DESIGN G ROUP Larry L. Cannon CANNON DESIGN GROUP 700 LARKSPUR LANDING CIRCLE . SUI TE 199 . LARKSPUR. CA. 94939 This Page I ntentional{v Left Blank RECEIVED ~ --II? -oLf Lf- JAN 0 b 2016 TOWN OF LOS GATOS PLANNING DI V ISION This Page Intentionally Left Blank