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ARBORIST
REPORT AND
TREE
PROTECTION
PLAN10046BianchiWay, CupertinoCA95014July2023
Arborist Report &TreeProtectionPlanfor10046Bianchi WayCupertino, California95014 Preparedfor:
MikeWilsonMKI Builders, [email protected] July 2023
Preparedby:
Davey ResourceGroupADivisionof TheDavey TreeExpert Company1500NorthMantuaStreetKent, OH 44240 Contact:
ElizabethLanhamISAArborist #WE-9234ATRAQQualifiedwww.daveyresourcegroup.com NoticeofDisclaimerInventorydataprovidedbyDaveyResourceGroupisbasedonvisualrecordingatthetimeofinspection.Visualrecordsdonotincludetestingoranalysisanddonotincludeaerialorsubterraneaninspection.DaveyResourcegroupisnotresponsiblefordiscoveryoridentificationofhiddenorotherwisenon-observablerisks.Recordsmaynotremainaccurateafterinspectionduetovariabledeteriorationofinventoriedmaterialandsitedisturbance.DaveyResourceGroupprovidesnowarrantywithrespecttothefitnessoftheurbanforestforanyuseorpurposewhatsoeverorforfutureoutcomesoftheinventoriedtrees.
LeonTownhouses-10046BianchiWay,Cupertino 1 July2023
Contents
Summary 3
Introduction 3Background 3Assignment 3LimitsofAssignment 4PurposeandUseofReport 4 Observations 4Methods 4SiteObservations 4TreeObservations 4 RootZoneCalculations 4
ConclusionandRecommendations 5
AppendixA–LocationMap 7
AppendixB–TreePhotos 8
AppendixC–Tables 19Table1.TreeInventoryandRootZones 19Table2.ConditionAssessmentJune2023 19 LeonTownhouses-10046BianchiWay,Cupertino 2 July2023
Summary
InJune of 2023, Davey Resource Group(DRG)wascontractedbyMikeWilsonofMKI Builderstoconductatreeinventoryanddevelopatreeprotectionplanaswellasplantingrecommendationsforthetreesintheareaofimpactonthepropertyat10046BianchiWayinCupertino,CA.Therequestwasmadetoassessthecurrentconditionofthetreesandestablishaprotectionplanbasedonthefindings,thentodevelopaplantingplanthatwouldenhancethesitewiththetreesthatareappropriateforthespacebutwillprovidethebestvalueovertime.
On July 6, 2023, anInternational Society of Arboriculture (ISA) CertifiedandTRAQQualifiedArborist (ElizabethLanham,WE-#9234A)fromDaveyResourceGroupevaluatedsix(6)treesthatmaybeimpactedbydevelopment.Thetreeswereassessedbytheirlocation, size,currentcondition,health,structure,andform.Thecurrentsiteplanwasusedtoestimate the constructionfootprint inrelationtothecritical rootzones(CRZ)ofthetreestohelpguideconstructionandtoreduce potential impacts onthe trees. Current plans include thedemolitionoftwoexistingmulti-family dwellings for the constructionof seventownhouses, a driveway, andwalkways. Tree informationissummarizedasfollows:
● Eight(8)treeswereassessed,consistingofseven(7)distinctspecies;theseconsistofblackwalnut(Juglansnegra),Coastliveoak(Quercusagrifolia),commonfig(Ficuscarica),glossyprivet(Ligustrumlucidum),Hollywoodjuniper(Juniperuschinensis),Italiancypress(Cupressussempervirens),andMontereycypress(Hesperocyparismacrocarpa-2trees;oneonneighboringproperty).Three(3)treeshadpreviouslybeenremovedandwerereportedasfernpine(Afrocarpusgracilior-2trees),andVictorianbox(Pittosporumundulatum-onetree)● TheinventoryencompassesthetreesthatmaybeimpactedbytheproposedconstructionthatfitCupertinotreeordinancesection14.18-ProtectedTrees● Three(3)treeswereingoodcondition,one(1)infaircondition,andfour(4)treeswereinpoorcondition.● Treeheightapproximationsrangedfrom10to45feet.● Treediametersatfourandahalffeetabovegrade/breastheight(DBH)rangedfrom14inchesonasingle-trunkedMontereycypressto38.5inchesonamulti-trunkedCoast-liveoak.● Seven(7)treesarerecommendedforremovalunderthecurrentplans-trees1,5,6,7,8,9,and10.○ PertheCupertinoprotectedtreeordinancesection14.18.110,trees1,5,6,9,and10requireapermitforremoval.○ BasedontheReplacementTreeGuidelineschartprovidedinsection14.18.160,thereplacementratiowillbeeighteen(18)24”boxtreesboxtreeornine(9)36”boxtrees.Thein-lieufeesfortree#9arebasedonthetreeappraisalvalueusingtheguidelinesinthe10thEditionGuideforPlantAppraisalbytheCouncilofTreeandLandscapeAppraisers○ Duetobothobservationalandscientificevidencethatthesmallesttreeplantedisthemostlikelytobesuccessful,theprojectArboristrecommendsusing24-inchboxtreesonsite.Howeverduetothehigh-densitynatureoftheproject,nomorethantenplantingsofstrategicallyselectedclimate-adapted,drought-compatible,native,andregionallyappropriatetrees○ Plantingrecommendationsareprovidedasanadditionalmap.SeeAppendixBfordetails.○ Thereplacementvaluefortheadditional8-24-inchboxtreesisrecommendedtobe$400atree(followingthevaluesintheMenloParkmunicipalcode,whichprovidesrecommendations)or$3,200.Tree#9’sinlieucalculationwasdeterminedtobe$24,250,foracombinedtotalof$27,450.● TheneighboringMontereypineisrecommendedforretention;treeprotectionmeasuresareprovided.
ThisreportfocusesontreeprotectionrecommendationsfortreepreservationandprovidestheCRZsandSRZsofthesetreesforplanningpurposes. DRGhasprovidedgeneral sitepreservationrecommendationsbasedontheprovidedconstructionplans.Arboristmonitoringofconstructionisrequiredwheneverworkisperformedwithinthedriplineofsignificanttrees.Trenchingmustbedonebyhandorwithpneumaticairspadeexcavationtools.ThetreesidentifiedforpreservationshouldbemonitoredbyaCertifiedArboristattheendofconstructionandongoingasneeded.
LeonTownhouses-10046BianchiWay,Cupertino 3 July2023
Introduction
Background
Current plans fornewconstructionat10046Bianchi WayinCupertinoincludethedemolitionofthetwoexistingmulti-familyhomes, followedbytheconstructionofsevennewtownhouseswithnewlydugfoundations,drivewayaccess,andnewlyinstalledwalkways.Thesitewillcomprisestructuresandmostlyhardscape,witha5-10footgreenbeltaroundthepremises,andsmallfrontyards(approximately6ftatthenarrowestmeasure).Alltreesover4inchesindiameter onthe property andadjacent properties that may be impactedby the proposedconstructionwereassessedandevaluatedforimpactsinaccordancewithCupertinotreeordinancesections14.18.050,060,200,and210.
Assignment
Thearboristvisuallyassessedeachtreeonthesite,andtherequiredtreedatawerecollectedusingaportabletabletdevice.Followingdatacollection,specifictreepreservationplanelementswerecalculatedthatidentifiedeachtree'scritical andstructural rootzones(CRZandSRZ)tobetterensuresurvivabilityduringtheplanneddevelopment.Thisreportestablishestheconditionofthetreesandcanopywithintheprojectarea.Thetreeswerevisuallyassessed,andphoto documented so that changes in condition can be evaluated if needed. Planting recommendations weredevelopedbyreviewingtheproposeddevelopmentplans,CityofCupertinoBMPsandordinances,andindustryBMPsregardingresilienttreespeciesfortheregion.
LimitsoftheAssignment
Many factors canlimitspecificandaccuratedatawhenperformingevaluationsoftrees, theirconditions, andthepotential forfailureorresponsetositedisturbances.Nosoilortissuetestingwasperformed.Allobservationsweremade fromthe groundonJuly 6, 2023, andnosoil excavationtoexposerootswasperformed. Themostrecentdevelopment plans were available to determine potential construction impacts. The determinations andrecommendationspresentedherearebasedoncurrentdataandconditionsthatexistedatthetimeoftheevaluationandcannotbeapredictoroftheultimateoutcomefortheevaluatedtreesinthefuture.Nophysicalinspectionoftheuppercanopy,sounding,resistancedrilling,orothertechnologieswereusedintheevaluationofthetrees.
PurposeandUseofReport
Thepurposeofthisreportistoprovideasummaryinventoryofalltreeswithintheprojectareaofimpact,includinganassessment of the current condition and health, as well as providing a tree protection plan and plantingrecommendationsforall evaluatedtrees/canopiesthatmaybeimpactedbyconstructionplans.Thefindingsinthisreportcanbeusedtomakeinformeddecisionsondesignplanningandguidethetrees'long-termcare.ThisreportanddetailedtreeprotectionplancanalsobesubmittedtotheCityofCupertinoforpermittingpurposes.
Observations
Methods
Avisual inspectionwasusedtodevelopthefindings, conclusions,andrecommendationsfoundinthisreport.Datacollectionincludedmeasuringthediameterofsignificanttreesatapproximately54inchesabovegrade(DBH),heightestimation, a visual assessment of tree condition, structure, and health, and a photographic record. A ratingpercentage(0-100%)wasassignedforeachtree’shealth,structure,andform,andthelowestpercentagewasusedastheoveralltreecondition.
SiteObservationsTheprojectsiteislocatedintheCityofCupertinoonBianchiWay,justSouthofStevensCreekBlvd.Theparcelisaprivatelyownedlotwithtwoexistingmulti-familyhouses, connectedbyanexteriorbreezewaystructure.Thelotis14,975squarefeetandthemaximumallowableis8.57units.Thepropertyisonlevelground.Onlytreesimpactedbytheconstructionthatmetordinancecriteriaforprotectionwereassessed.
LeonTownhouses-10046BianchiWay,Cupertino 4 July2023
TreeObservationsEight(8)treeswereassessed, consistingofseven(7)distinctspecies;theseconsistofblackwalnut(Juglansnegra),Coast live oak (Quercusagrifolia), commonfig(Ficuscarica), glossyprivet(Ligustrumlucidum), Hollywoodjuniper(Juniperuschinensis),Italiancypress(Cupressussempervirens),andMontereycypress(Hesperocyparismacrocarpa-2trees;oneonneighboringproperty).Three(3)treeshadpreviouslybeenremovedandcouldnotbeobservedbythearborist.Thesewerereportedasfernpine(Afrocarpusgracilior-2trees),andVictorianbox(Pittosporumundulatum-onetree), andareonlyincludedaspartofthisreportbecausetheyareonthesurvey.Pleasenotethattheseareincludedinthetreecalculations.
Thetreesaremostlymature,andtreeconditionratingsweregoodforthree(3)trees,fairforone(1)tree,andpoorforfour (4) trees. Tree diameters rangedfrom14 inches for a single-trunkedMontereycypressto38.5inchesforamulti-trunkedCoastliveoakwithanaverageof20.4inches. Treeheightsrangedfrom10feetto45feet, withanaverageheightof27.5feet.
AmapoftreelocationscanbefoundinAppendixA.TreephotographscanbefoundinAppendixCandacompleteTreeInventoryandConditionAssessmentcanbefoundinAppendixD.
Root ZoneCalculations
The trunk diameters of the assessedtrees are oftenusedtodeterminetheCritical RootZone(CRZ). TheCRZisconsideredtheidealpreservationareaforatree.Itcanbecalculatedbyadding1footofradiusforeveryinchoftrunkdiametermeasuredat4.5feetfromgrade/breastheight(DBH). Forexample; atreewithaDBHof10incheshasacalculatedCRZradiusof10feetfromthetrunk.TheCRZrepresentsthetypicalrootingarearequiredfortreehealthandsurvival. AsthisprojectislocatedintheCityofCupertino, CRZwassubstitutedwiththecitystandardofthecircularareaaroundatreewitharadiusmeasuredtothenearestfootofthetree’slongestdriplinetodeterminetheTreeProtectionZone(TPZ)asseeninTable1accordingtoCupertino’sordinance14.18APPENDIXA:STANDARDSFORTHEPROTECTIONOFTREESDURINGGRADINGANDCONSTRUCTIONOPERATIONS.Someimpact(25%orless)withinthiszoneistypicallyacceptableforaveragetogood-conditiontreeswithbasicmitigation/stressreductionmeasures.ConstructionactivitiesshouldnotoccurwithintheTPZofanytreetoberetained.Thisincludesbutisnotlimitedtothestorage of materials, parking of vehicles, contaminatingsoil bywashingoutequipment, (concrete, paint, etc.), orchangingsoilgrade.
The structural root zone was calculated using a commonly accepted method established by Dr. KimCoder inConstructionDamageAssessments: TreesandSites. Inthismethod,therootplatesize(i.e.pedestalroots,zoneof 1 rapidtaper area, androots under compression) andlimit of disruptionbasedupontreeDBHisconsideredasaminimumdistancethatanydisruptionshouldoccurduringconstruction.Asignificantriskofcatastrophictreefailureexistsifstructuralrootswithinthisgivenradiusaredestroyedorseverelydamaged.TheSRZistheareawhereminimalornodisturbanceshouldoccurwithoutarboristsupervision. TheTPZandSRZforthesurveyedtreesarelistedinAppendixB,Table2.
ConclusionandRecommendations
Basedonvisualevaluationsandtheimpactsoftheproposeddevelopment,alltreeshavetheabilitytobeimpacted.Thefollowingrecommendationswillminimizetheimpactsasmuchaspossible. ● Trees1,6,7,8,and9arewithinthefootprintoftheproposedconstructionandwillrequireremoval.● Trees5and10arebothinpoorconditionandtheimpactofthedemolitionandconstructionontheCRZofthetreeswillbetoosignificant,requiringthesetreestoberemovedaswell. 1 Dr.KimD.Coder,UniversityofGeorgiaJune1996
LeonTownhouses-10046BianchiWay,Cupertino 5 July2023
● PertheCupertinoprotectedtreeordinancesection14.18.110, trees1,5,6,9,and10requireapermitforremoval● Tree 11 is ontheneighboringpropertyandwill requiretreeprotectionaswell asamonitoringscheduleduringconstruction.● Tree11TPZfencingshouldbeinstalledtoencompassasmuchoftheTPZthatoverhangsthesubjectproperty.Iftheneighborsagree, itisrecommendedthatTPZfencingfullyencompassthetreeandextendontothepropertywherethetreeislocated.● Arborist monitoring must be performedwhenremoval oftheexistingdrivewayoccurs, aswell asduringexcavation and compaction for the new driveway. All excavationwithinthe CRZ must be hand-dug orperformedbyairspadewiththeprojectarboristonsite,andthearboristmustapprovethepruningofrootsover2inches.Anyrootsuncoveredorprunedmustbewrappedindampburlapthatwillbekeptmoistuntiltherootsareabletobecoveredoverwithsoil.● TPZfencingshouldbe6feetinheightandconstructedofchainlinkfencing.ThefencingmaybemovedwithinthedriplineifdirectedbytheprojectarboristorCityArboristbutcannotbemovedtowithin2feetofthetrunk.Fencepostsshouldbe2-inchindiameterandgalvanized,andinstalled2feetbelowgrade.PostsmaybemovableratherthanbelowgradeifinstructedbytheCityArboristandmaynotbespacedmorethan10feetapart.Signsmustbepostedstating: “TREEPROTECTIONFENCE-DONOTMOVEORREMOVEWITHOUTAPPROVALFROMCITY/PROJECTARBORIST.NOSTORINGOFMATERIALSORMACHINERY.”ThefencemaynotbemovedwithoutauthorizationfromtheprojectarboristorCityArborist.● TPZfencingmustbeinplacebeforeanyequipmentison-siteandmustremaininplacefortheentiretyoftheprojectandonlyberemoved,temporarilyorotherwise,withtheapprovalofaCertifiedArboristwhileactivitiesaredirectlysupervised,andreplacedimmediatelyafter.● MonitoringofthetreeprotectionspecificationsbyanISACertifiedArboristorASCARegisteredConsultingArboristisrequiredatmonthlyintervals.Acorrespondingmonitoringlettershouldbeprovidedtotheprojectconfirmingtheresultsoftheprojectmonitoring.● Nomaterialshallbestored,norconcretebasinswashed,oranychemicalmaterialsorpaintstoredwithintheTPZoftrees,andnoconstructionchemicalsorpaintshouldbereleasedintolandscapedareas,asthesecanbetoxictotreesandcontaminatethesoil.● Afterconstructioniscomplete,thepropertyownershouldmonitorthetreesforatleastoneyearandcontactaCertifiedArboristtoinspectifanylean,limbdie-back,leafdrop,orfoliagediscolorationdevelops.
ConsiderationsforTree#9- TheCoastLiveoak(Quercusagrifolia)Tree9isatthebackpropertyline.Itispushingthegoodneighborfenceandhascauseddamagetotheparkinglotofthechurchontheothersideofthefencefromthesubjectproperty.Duetothelocationofthistreedirectlyonthepropertyline,thistreeappearstobeavolunteerthatwasallowedtomatureovertime.
Theplannedconstructionisscheduledtohaveexcavationwithinlessthan7ftofthistree’strunk,puttingtrenchingrightthroughthemiddleofthe17ftSRZ,whichistheareaoftherootzone,whichcannotbedisturbedduetosevereriskofhealthorstructuralimpacts(seeRootZoneCalculationssectionformoredetails),andwellintothe38.5ftCRZ,whichistheareawhereminimaldisturbanceshouldtakeplace.Quercusagrifoliahasalowtoleranceforrootdamage,andanimpactthissevereislikelytobecatastrophictothehealthand/orstructureofthistree,contributingtoanuntimelydeclineortreefailure. Withoutmakingsignificantplanchanges,whichwillaffectthedensityusageofthisparcel, retainingthistreeisnotadvised. Evenwithdesignchanges, thetreewill needtoundergosignificantrootpruning,whichmaystillaffectthehealthandstructure,butalsoislikelytoresultinreactiongrowthofnewrootsthatwilldamagethehardscapeandfoundationsofthenewhomes,leadingtocostlyrepairsandtheremovalofthistreewithinasfewasfivetotenyears.Removaloftree9isrecommended.
SincetheDBHofthistreeisabove36”,in-lieufeeswillbecalculatedforthistreeusingthetrunkformulamethodasdescribedinthe10theditionoftheGuideforPlantAppraisalbytheCouncilofTreeandLandscapeAppraisers.Thebasicformulaisasfollows:
UnitTreeCostxConditionRating(%) xFunctionalLimitations(%)xExternalLimitations(%) LeonTownhouses-10046BianchiWay,Cupertino 6 July2023
Thebasictreecostisthesumoftheinstalledtreecostandthecostofthedifferencebetweentheadjustedtrunkareaandthereplacementtreesize(appraisedtreesizeincreasemultipliedbyunittreecost).Sizewasmeasuredastrunkcross-sectionalarea(squareinches),calculatedby0.785x(DBH)²;whereacircularcross-sectionwasassumed.
Species size andcost datawereobtainedfromtheISAWesternChapterSpeciesClassificationforLandscapeTreeAppraisal(2004).TheWesternratingwasused.NonurserygroupdatawereusedastheBasicTreeCostwascalculatedusing the above formula(s). Unit tree cost was determinedtobe $175. The conditionratingwasbasedonfieldobservationsalreadydescribed.Thefunctionalandexternallimitationratingswerebasedonfieldandaerialimageryobservations. The basic functional replacement tree cost was then calculated by multiplying the functionalreplacementtreecross-sectionareabytheunittreecost. Thedepreciatedfunctional replacementtree(calculatedusingthebasicfunctionalreplacementcost,theoverallconditionrating(%),thefunctionallimitationsrating(%),andtheexternallimitationsrating(%))isthencalculated,thenroundedtoprovidetheroundedreplacementcost.
Tree#
Botanical Name Condition
ExternalLimitations(%)
FunctionalLimitations(%)
Total AppraisalCost ($)
RoundedTotalAppraisal Cost($)
9 Quercusagrifolia
Good(61-80%) 75% 50% $24,249 $24,250
RecommendedPlantingPaletteAppendixBshowsthelocationandspeciesoftreesrecommendedforplantingaspartofthenewplantingplan.WhileCupertinohasaguidelineofCallerypearsasstreettreesinthisneighborhood,thesetreesarepoorlystructured,susceptibletofireblight,andinsomeregions,areconsideredinvasivespecies.Thisleadstoalengthyandpainstakingmaintenanceprocessthatmayresultinspecimenswithlimbfailures,withpestanddiseaseissues,andthatisnotcontributingtoalong-termresilienturbanforestforCupertino.Forthisreason,theprojectarboristsuggestsusingCornusnutalliixflorida(‘EddiesWhiteWonder’dogwood)asthereplacementstreettreespecies.Thesetreeswillhavebeautifulwhitespringflowers,butareclimateanddrought-adapted,anddonothaveanypervasivepestanddiseaseissues,nordotheyhavesimilarinvasiveproperties.Asanornamentalspecies,Parkinsoniaaculeata(Jerusalemthorn)hasbeenselected.Thisshowyanddrought-toleranttreewillprovidebeautifulcolor,butstayheartyfortheclimateevenifitweretobecome5-10degreesFwarmeronaverage.Finally,Quercusdouglasii(blueoak)wasselectedasthepropertyshadetree.Thesenativeslowgrowerswilldevelopalargecanopyovertimebutwillprovideenoughtimeformaintenancetobeabletotakeplacetotrainthetreesintoanappropriatestructuresothattheywillnotnegativelyimpacttheconditionofthebuildings.Pruningofthesetreescantakeplaceinathoughtful,planned,judiciousmanner,asitwouldlikelybe75ormoreyearsbeforethesetreeswouldbegintodamagethestructuresifleftunmaintained.
Eachtreeshouldhaveadedicatedbubblerforitsestablishmentandshouldreceiveapproximately1.5-2gallonsofwaterperinchoftrunkdiameterperweekbasedonsoilabsorptionlevels.Thisvalueshouldbeadjustedduringtherainyseasonaccordingly.Thesoilshouldbemoistbutshouldnotbemaintainedsoggy,asthesetreesareadaptedfordryerclimates.Careshouldbetakennottooverwatertheoaksduringthesummermonths,astheyareaccustomedtoanaturallyMediterraneanclimateandexpectdryerconditions.Soilmoistureshouldbemaintainedinthebasinsofthenewlyplantedtreeswitha3-4inchlayerofmulch.beingsuretokeepthetrunkflaresclearofmulchforproperairflow,andmulchingtothetrees’driplinewhereverpossible.
Theplantingplanshows10newtreestobeplantedonsite.While36-gallontreeswouldbethequickestwaytoaccomplishtheCity’splantingstandards,theprojectarboristrecommendsplanting24-inchboxtrees.Bothobservational(throughoutthisarborist’s17-yearcareer)andscientific(UniversityofArizona;JimDowner)evidence LeonTownhouses-10046BianchiWay,Cupertino 7 July2023
supportsthatonafive-yearorlesstimeline,nodifferencecanbeobservedbetweena15-gallontreeanda36-inchboxtreeinregardtotheirsize,butthe36-inchboxtreeaddsadditionalcoststotheprojectandoftenhaspoorrootstructurethatcannotberemediedduetobeingineitherits15-galloncontaineror24-inchboxtoolong.Thesmallerthetree,thefasteritwillusuallydevelop,asitisunderlessstressthanalargertransplantedtree. SincetheCitydoesnotoffer15-gallonasareplacementsize,theprojectarboristrecommendsthatthesmallestsizeoptionof24-inchboxesbeallowedforthereplacementtrees.BasedontheReplacementTreeGuidelineschartprovidedinsection14.18.160,thereplacementratiowillbeeighteen(18)24”boxtreesboxtreeornine(9)36”boxtrees.Thein-lieufeesfortree#9arebasedonthetreeappraisalvalueusingtheguidelinesinthe10thEditionGuideforPlantAppraisalbytheCouncilofTreeandLandscapeAppraisers.Thereplacementvaluefortheadditional8-24-inchboxtreesisrecommendedtobe$400atree(followingthevaluesintheMenloParkmunicipalcode,whichprovidesrecommendations)or$3,200.Tree#9’sinlieucalculationwasdeterminedtobe$24,250,foracombinedtotalof$27,450.
LeonTownhouses-10046BianchiWay,Cupertino 8 July2023
AppendixA–LocationMap
LeonTownhouses-10046BianchiWay,Cupertino 9 July2023
AppendixB–PlantingMap
Plantingplanrecommendations
LeonTownhouses-10046BianchiWay,Cupertino 10 July2023
AppendixC–TreePhotos
Sampleset.Additionalphotosareavailableuponrequest.
Photo1.Tree#1isaMontereycypressinpoorconditionthatwillberemovedfortheproject LeonTownhouses-10046BianchiWay,Cupertino 11 July2023
Photo2.Tree#5isinpoorconditionandwillberemovedfortheproject.
LeonTownhouses-10046BianchiWay,Cupertino 12 July2023
Photo3.Tree#6isingoofcondition,butisinthefootprintoftheproposedprojectandwillrequireremoval LeonTownhouses-10046BianchiWay,Cupertino 13 July2023
Photo4.Tree#7isingoodconditionbutisinthefootprintoftheplannedconstructionandwillrequireremoval LeonTownhouses-10046BianchiWay,Cupertino 14 July2023
Photo5.Tree#8isinpoorconditionandwillberemovedaspartoftheproject LeonTownhouses-10046BianchiWay,Cupertino 15 July2023
Photo6.Tree#9,locatedonthepropertyline,willhavesignificantconstructionimpactsandrequiresremoval LeonTownhouses-10046BianchiWay,Cupertino 16 July2023
Photo7.Tree#10isapoor-conditionfigtreeinpartialfailurethatwillberemovedaspartoftheproject LeonTownhouses-10046BianchiWay,Cupertino 17 July2023
Photo8.Tree#11,theneighboringMontereycypressisinfairconditionandwillrequiretreeprotection LeonTownhouses-10046BianchiWay,Cupertino 18 July2023
AppendixD–Tables
Table1.TreeInventoryandRootZones
Tree# Stems
DBH(in.) CommonName BotanicalName Height(ft) Canopy(ft) SRZ(Radiusinft)
CRZ(Radiusinft)
1 1 16 Montereycypress
Hesperocyparismacrocarpa 40 27 7 13.5
2 1 18 Victorianbox
Pittosporumundulatum n/a n/a n/a n/a
3 1 20 Fernpine Afrocarpusgracilior n/a n/a n/a n/a
4 1 18 Fernpine Afrocarpusgracilior n/a n/a n/a n/a
5 3 29.5 Blackwalnut Juglansnegra 30 40 13 20
6 1 19 Italiancypress
Cupressussempervirens 45 12 9 6
7 2 15.5 Hollywoodjuniper Juniperuschinensus 10 18 7 9
8 5 16.5 Glossyprivet Ligustrumlucidium 15 12 7 6
9 2 38.5 Coastliveoak Quercusagrifolia 35 50 17 25
10 1 19 Commonfig Ficuscarica 25 36 9 18
11 1 14 Montereycypress
Hesperocyparismacrocarpa 20 24 6 12
LeonTownhouses-10046BianchiWay,Cupertino 19 July2023
Table2.ConditionAssessmentJune2023
Tree#
CommonName
Health(%)
Structure(%)
Form(%)
OrdinanceSize(Y/N)
RemovalProposed(Y/N) Notes
1 Montereycypress 50% 45% 35% Y Y
GirdlingRoots,RootDamage/Decay,Co-DominantStems,SmallDeadwood(1-2"),LowVigor,Stressed,OverheadUtilities,Drivewaydamage~3inches 2 Victorianbox n/a n/a n/a n/a REMOVED3 Fernpine n/a n/a n/a n/a REMOVED4 Fernpine n/a n/a n/a n/a REMOVED 5 Blackwalnut 45% 35% 35% Y Y
TrunkDecay,Co-DominantStems,SmallDeadwood(1-2"),Stressed,BranchDecay,Gopherissues,cavityatbase 6 Italiancypress 75% 65% 65% Y Y
BuriedRootCollar,IncludedBark/WeakUnion,Co-DominantStems,SmallDeadwood(1-2"),Insect/DiseaseProblem,Sidewalkliftofabout2inches 7 Hollywoodjuniper 75% 75% 75% N Y
Co-DominantStems,SmallDeadwood(1-2")
8 Glossyprivet 35% 45% 40% N Y
BuriedRootCollar,IncludedBark/WeakUnion,Co-DominantStems,LargeDeadwood(3"+),SmallDeadwood(1-2"),SevereDecline,BranchDecay 9 Coastliveoak 80% 65% 70% Y Y
BuriedRootCollar,IncludedBark/WeakUnion,Co-DominantStems,LargeDeadwood(3"+),SmallDeadwood(1-2"),BranchDecay 10 Commonfig 85% 30% 30% Y Y
TrunkDecay,IncludedBark/WeakUnion,Co-DominantStems,BrokenLimbs,Treehasalreadyfailed 11 Montereycypress 80% 60% 60% N N
SmallDeadwood(1-2"),OverheadUtilities
LeonTownhouses-10046BianchiWay,Cupertino 20 July2023
LeonTownhouses-10046BianchiWay,Cupertino 21 July2023