2.0 project description - california public utilities commission project... · 1 2.0 project...

SANTA BARBARA COUNTY RELIABILITY PROJECT

2.0 PROJECT DESCRIPTION

MAY 2015 2‐1 FINAL EIR

2.0 Project Description 12SouthernCaliforniaEdisonCompany(SCE,ortheapplicant)proposestoconstructtheSanta3BarbaraCountyReliabilityProject(proposedproject)betweentheCityofVentura,inVentura4County,andtheCityofCarpinteria,inSantaBarbaraCounty.Theproposedprojectcomprisesthe5following:67

Removaland/orreplacementofexisting66‐kilovolt(kV)subtransmissionstructures8facilities,primarilywithinexistingutilityrights‐of‐way(ROWs)betweentheexistingSanta9ClaraSubstationinVenturaCountyandtheexistingCarpinteriaSubstationinSantaBarbara10County.11

Installationofmarkerballsonoverheadwirewheredeterminednecessary.12

ModificationofsubtransmissionandsubstationequipmentwithintheexistingCarpinteria13Substation,CasitasSubstation,andSantaClaraSubstation.14

Replacementoflineprotectionrelayswithinexistingsubstationequipmentroomsor15cabinetsattheGettySubstation,GoletaSubstation,OrtegaSubstation,andSantaBarbara16Substation.17

Installationoftelecommunicationsfacilitiestoconnecttheproposedprojecttothe18applicant’sexistingtelecommunicationssystemfortheprotection,monitoring,andcontrol19ofsubtransmissionandsubstationequipment.20

Installationofnewtelecommunicationsfacilitiesalongreconstructedsubtransmission21segmentsandattheCarpinteriaSubstation,CasitasSubstation,SantaClaraSubstation,and22VenturaSubstation.23

Transferofdistributionlines(andthird‐partyinfrastructureasnecessary)tonew24subtransmissionstructures.25

Removalofsubtransmissioninfrastructure,suchastowerfoundationfootings,26decommissionedduringprevious66‐kVreconstructionactivitiesbetween1999and2004.27

28Theapplicantestimatesthatconstructionwouldtakeapproximately24months.Theconstruction29durationdoesnotincludeanypotentialdelaysduetonestingbirds,weather,outageconstraints,30permitacquisitions,orotherunpredictableevents.Itisanticipatedthattheproposedproject31wouldbeoperationalin2017.Figure2‐1showstheproposedprojectlocationandmajor32components.33342.1 Location of the Proposed Project 3536Thesubtransmissioncomponentsoftheproposedprojecthavebeensubdividedintoseven37geographicallydefinedportionswithinSantaBarbaraandVenturacounties(Figure2‐1):3839

Segment1spansfromtheSantaClaraSubstationintheeasttotheCasitasSubstationinthe40west.41

\\prtbhp1\GIS\SanFrancisco\SantaBarbaraCoReliability\Maps\MXDs\Report_Maps\Figure2_1_Project_Features_Segments.mxd August 2014

Figure 2-1aProposed Project

ComponentsSanta Barbara County

Reliability ProjectSanta Barbara andVentura Counties

California

º 0 1Miles

NV

AZ

CA

ID

UT

OR Existing Electrical SubtransmissionLines

Segment 1Segment 2Segment 3ASegment 3BSegment 4Segment 5

Requires New ROW

!Existing Substation Locations

!(G Getty Tap

!P Helicopter Landing ZonesLos Padres National Forest(USFS)Bio Preserve AreasCoastal Commission ZoneStaging Yards

Major RoadsLocal roadCounty BoundaryCity Limits


Figure 2-1bProposed Project



California

º 0 1Miles

NV

AZ

CA

ID

UT


Segment 1Segment 2Segment 3ASegment 3BSegment 4

Requires New ROW


!(G Getty Tap



Segment 5


Figure 2-1cProposed Project



California

º 0 1Miles

NV

AZ

CA

ID

UT


Segment 1Segment 2Segment 3ASegment 3BSegment 4

Requires New ROW


!(G Getty Tap



Segment 5




12

Segment2spansfromtheCasitasSubstationintheeasttothe“Y”1inthewest.3

Segment3AspansfromtheCarpinteriaSubstationinthewesttotheSantaBarbara4County/VenturaCountyborderintheeast.5

Segment3BspansfromtheSantaBarbaraCounty/VenturaCountyborderinthewesttothe6Yintheeast.7

Segment4spansfromtheYintheeasttotheCarpinteriaSubstationinthewest.8

Segment5spansfromSegment3BtoSegment4andadjacenttoSegment4for9approximately1mile.10

The“GettyTap”islocatedapproximatelyinthemiddleofSegment1.11

12Inaddition,theproposedprojectincludesworktobeconductedateightexistingsubstations:1314

SantaClaraSubstation:LocatedonElizabethRoad,approximately0.5milesfromElizabeth15RoadandFoothillRoadinunincorporatedVenturaCounty.16

GettySubstation:Locatedapproximately1mileeastoftheterminusofOilFieldRoadin17unincorporatedVenturaCounty.18

CasitasSubstation:LocatedonStateRoute33,southwestofParkViewDrivein19unincorporatedVenturaCounty.20

VenturaSubstation:LocatedonS.VenturaAvenue,northwestofE.SantaClaraStreetinthe21CityofVentura.22

CarpinteriaSubstation:LocatedonFoothillRoad/StateRoute192,northwestofLinden23AvenueintheCityofCarpinteria.24

OrtegaSubstation:LocatedinanunincorporatedareawestoftheCityofCarpinteria.25

SantaBarbaraSubstation:LocatedintheCityofSantaBarbaraatEdisonAvenueand26E.MontecitoStreet.27

GoletaSubstation:LocatedinunincorporatedSantaBarbaraCountynorthoftheCityof28GoletaoffofSCEPowerlineServiceRoad.29

302.2 Components of the Proposed Project 3132ThecomponentsoftheproposedprojectaresummarizedinTable2‐1andshownonFigure2‐1.33Thefollowingsubsectionsdescribeeachproposedprojectcomponentandworktobeconductedat34eachlocation.3536

1 TheYreferstoapointwhereSegments2,3B,and4convergenearCasitasPass.




2.2.1 66‐kV Subtransmission Lines 12Theproposedprojectwouldincludethereconstructionofexisting66‐kVsubtransmissionline3elementsprimarilywithinexistingROWsoperatedbytheapplicant,alongthesixdifferent4segmentsidentifiedinSection2.1.ThesesegmentsareshownonFigure2‐1anddescribedbelow.56Table 2‐1 Approximate Dimensions and Specifications of Components of the Proposed

Project Component Dimensions Proposed Project Specifications

66‐kV Segments Segment1 9miles Structurestoberemoved:Foundationsatupto15LST

locations. Structurestoretrofit:1TSP. Othercomponentstobeinstalled:newfittingsto

accommodatetelecommunicationscableonthreeexistingLST;automationequipmentonanexistingTSP;poleswitchonanexistingwoodpole,andmarkerballsonoverheadwirewherenecessary.

Segment2 4.1miles Structurestoberemoved:Foundationsatupto15LSTlocations.

Othercomponentstobeinstalled:automationequipmentononeTSP;newfittingstoaccommodatetelecommunicationcableononeLST;markerballsonoverheadwirewherenecessary.

Segment3A 3.7miles Structurestoberemoved:17toppedsubtransmissionwoodpoles.

Transferof16‐kVlineandtelecommunicationslinetoexistingLWSpoles.

Othercomponentstobeinstalled:2.3milesofFRConexistingLWSpoles.

Segment3B 5.2miles Structurestoberemoved:31LST,existingconductor Structurestobeinstalled:21TSP,1LWS. Othercomponentstobeinstalled:new954ACSR

conductor(27,500feet);markerballsonoverheadwirewherenecessary.

TwoportionsofSegment3B,totaling6,300feet,wouldbemovedfromthecurrentalignmentandconstructedinnewROW.

Inaddition,aminorshifttothenortheast,primarilyaffectingtheoverhangofthenewconductorsofthe66kVsubtransmissionlinealignment,mayberequiredforanapproximate3,700‐footportionofSegment3Binordertoaddressageotechnicalconcern.

Segment4 10.8miles Structurestoberemoved:74LST,1woodH‐frame,7woodpoles,existingconductor.

Structurestobeinstalled:59TSP,4J‐Tower,1LWS. Othercomponentstobeinstalled:newdouble‐circuit954

ACSRconductor(57,000feet);markerballsonoverheadwirewherenecessary.

Segment5 11,000feet(2.08milesapprox.)

Structurestoberemovedonexisting66‐kVline:12LST,2WoodH‐frames,11,000feetofconductor(betweenSegments3Band4).




Table 2‐1 Approximate Dimensions and Specifications of Components of the Proposed Project

Component Dimensions Proposed Project Specifications GettyTap 900feet Structurestoberemoved:4woodH‐frames,3wood

poles,existingconductor,andthreeswitches. Structurestobeinstalled:2TSP,4LWSH‐frames,3LWS. Othercomponentstobeinstalled:threeswitchesand

associatedautomationequipment,900feetof653ACSRconductorfromthetaplocationtoanexisting66‐kVsubtransmissionline.

Substations SantaClara N/A Modificationstothe66‐kVswitchrackandwithinthe

communicationsroom.Carpinteria 1,150feet Modificationstothe66‐kVswitchrackandwithinthe

MEER. Structurestoberemoved:3LST,2woodpoles,3switches. Structurestobeinstalled:3TSP. Conductorinstallationandrealignment:1,200feetof954

SACtoberoutedandconnectedtoexisting66‐kVswitchrack.

Casitas 130feet(ductbanks)

Modificationstothe66‐kVswitchrackandwithintheMEER.

Structurestobeinstalled:1TSP. Conductorinstallationandrealignment:twoductbanks

(eightconduits,130feetintotal).OtherSubstations(Getty,Goleta,Ortega,andSantaBarbaraSubstations)

N/A Componentstobeinstalled:upgradedlineprotectionrelayequipmentwithinexistingsubstationequipmentroomsorcabinets.

Telecommunications TelecommunicationrouteandEquipment

24miles Installnewtelecommunicationcableon66‐kVsubtransmissionstructuresalongSegments1,2,and4,whichwilltransitiontoanundergroundconfigurationwhenthecableentersSantaClara,CasitasandCarpinteriasubstations.

Lessthan0.7inchesindiameter. NewterminalequipmenttobeinstalledatCarpinteria,

Casitas,SantaClara,andVenturasubstations.




Table 2‐1 Approximate Dimensions and Specifications of Components of the Proposed Project

Component Dimensions Proposed Project Specifications De‐energizing Structures Retired66‐kVsubtransmissionlinesections

Multiplesegmentsofconductors

Approximately6,500feetof336ACSRwouldbede‐energizedbetweenSantaClaraSubstationandtheGettyTapinSegment1.

Approximately49,200feetof2/0barecopperconductorwouldbede‐energizedbetweenalocationapproximately1milefromSantaClaraSubstationtheGettyTapandCasitasSubstationinSegment1.

Approximately16,300feetof2/0barecopperconductorwouldbede‐energizedontheSantaClara–Getty66‐kVsubtransmissionLineinSegment3B.

Approximately12,000feetof653ACSRand8,500feetof2/0barecopperconductorwouldbeidledinandadjacenttoSegment4.

Approximately24,200feetof2/0barecopperconductorand17,600feetof653ACSRwouldbede‐energizedinSegment4.

Removal of Additional Structures Privateirrigationstructures

TBD Removalorrelocationtobedeterminedcase‐by‐casewithlandowners.

Access and Spur Roads Rehabilitationand/orupgradestoexistingaccess/spurroadsandconstructionofnewspurroads

120miles Structurestobeinstalled:retainingwall‐typestructurestominimizedisturbanceinsomelocations.

Source:SCEdocumentationsubmitted2012‐2014Key:ACSR aluminumconductorsteel‐reinforcedFRC faultreturnconductorkV kilovoltLST latticesteeltowerLWS lightweightsteelpoleMEERmechanicalelectricalequipmentroomN/A notapplicableROW right‐of‐waySACstrandedaluminumconductorTBD tobedeterminedTSP tubularsteelpole12.2.1.1 Segment 1 23Segment1originatesattheSantaClaraSubstationandterminatesattheCasitasSubstation,witha4totallengthofapproximately9mileswithinunincorporatedareasofVenturaCounty.InSegment1,5theapplicantwould:67

Removefoundationsatupto15latticesteeltower(LST)locationstoapproximately2feet8belowgrade,exceptinplaceswhereremovalcouldresultinerosionproblemsorlandowner9concerns.10




Retrofitonetubularsteelpole(TSP)toaccommodatenewtelecommunicationscable.1

InstallnewfittingstoaccommodatethetelecommunicationscableonthreeLSTs.2

InstallautomationequipmentonanexistingTSP.3

Replaceapoleswitchonasinglewoodpole.4

Installmarkerballsonoverheadwirewheredeterminednecessary.562.2.1.2 Segment 2 78Segment2originatesattheCasitasSubstationandterminatesattheY,inunincorporatedVentura9County.ThelengthofSegment2isapproximately4.1miles.InSegment2,theapplicantwould:1011

Removefoundationsatupto15LSTlocationstoapproximately2feetbelowgrade,except12inplaceswhereremovalcouldresultinerosionproblemsorlandownerconcerns.13

InstallautomationequipmentonanexistingTSP.14

InstallnewfittingstoaccommodatetelecommunicationscableononeLST.15

Installmarkerballsonoverheadwirewheredeterminednecessary.16172.2.1.3 Segment 3A 1819Segment3AoriginatesattheCarpinteriaSubstation,locatedintheCityofCarpinteria,and20terminatesattheborderofSantaBarbaraCountyandVenturaCounty.ThelinearlengthofSegment213Aisapproximately3.7miles,withconductorspansthatrangefrom105to425feetinlength.In22Segment3A,theapplicantwould:2324

Relocateexisting16‐kVdistributioncircuitsandthird‐partytelecommunicationsfacilities25thatarecollocatedontopped2woodpolestoadjacentexisting66‐kVlightweightsteel26(LWS).27

Installapproximately2.3milesoffaultreturnconductorontheexisting66‐kVLWSpoles.28

Remove17existingtoppedsubtransmissionpoles,includingsixpolescontainingdistributionand29communicationfacilitiesthatwouldbetransferredtoexisting66‐kVLWSpoles,fivesixpoles30containingthird‐partyfacilitiesthatwouldbetransferredbytheapplicantorthethird‐partyowner,31andfourfiveexistingwoodpolesthatcontainnoequipment.32332.2.1.4 Segment 3B 3435Segment3BoriginatesattheSantaBarbaraCounty/VenturaCountylineandterminatesattheYin36unincorporatedVenturaCounty,withalengthofapproximately5.2miles.Theconductorspans37alongSegment3Brangefromapproximately250to2,500feetinlength.InSegment3B,the38applicantwould:3940

2 “Topped”referstoapolestructurewheretheupperportionhasbeenremoved(reducingitsoverallheight)aftertheconductororcircuitsinstalledonthatportionofthepolehavebeenretired.Theremaininglowerportionofthestructurewouldcontinuetosupporttheelectricpowercircuitorthirdpartyfacility.




Replaceapproximately31LSTsandassociatedstructureswithapproximately21TSPsand1oneLWSpole.2

Removedupto31LSTfoundations.RemoveexistingLSTfoundationsto2feetbelow3groundsurface,exceptinareaswhereremovalcouldresultinerosionproblemsor4landownerconcerns.5

Removetheexistingconductorandinstallapproximately27,500feetofsingle‐circuit9546aluminumconductorsteel‐reinforced(ACSR)cable.7

MoveapproximatelytwoportionsofSegment3B,totaling6,300linearfeetfromthecurrent8alignmenttonewROWtoavoidgeotechnicalconcerns.9

Installmarkerballsonoverheadwireswheredeterminednecessary.10112.2.1.5 Segment 4 1213Segment4originatesattheY(unincorporatedVenturaCounty)andterminatesattheCarpinteria14Substation(CityofCarpinteria,SantaBarbaraCounty),withalengthofapproximately10.8miles.15TheconductorspansalongSegment4rangefromapproximately110to1,800feetinlength.In16Segment4,theapplicantwould:17 18

Replaceapproximately74LSTs,onewoodH‐frame,andsevenwoodpoleswith19approximately59TSPs,4J‐Towers,andoneLWSpole.20

Removethenecessaryconductorandinstallapproximately57,000feetofdoublecircuit95421ACSRwire.22

Removetwopoleswitches.23

RemoveexistingLSTfoundationsto2feetbelowgroundsurface,exceptinareaswhere24removalcouldresultinerosionproblemsorlandownerconcerns.25

InstalltelecommunicationcableonallTSPsandJ‐Towers.26

Installmarkerballsonoverheadwireswheredeterminednecessary.2728Ofthestructuresdescribedabove,twoexistingstructuresandseveralaccessandspurroad29segmentsarelocatedonUSForestService(USFS)managedlandwithintheLosPadresNational30Forest.WorkwithintheLosPadresNationalForestwouldinvolvetheremovalandreplacementof31existingstructureswithnewTSPsorJ‐Tower,removalandreplacementofconductor,and32improvementstoexistingaccessandspurroads,resultinginapproximately2.4acresofdisturbance33withintheLosPadresNationalForest.3435Ofthestructuresdescribedabove,1822existingstructuresandanumberofaccessandspurroad36segmentsarelocatedwithintheSantaBarbaraCountyCoastalZone.WorkwithintheCoastalZone37wouldinvolvetheremovalandreplacementofexistingstructureswithnewTSPs,removaland38replacementofconductor,andimprovementstoorconstructionofnewaccessandspurroads,39resultinginapproximately1.49acresofpermanentdisturbanceand4.02acresoftemporary40disturbance.Oneofthe1822structures,anditsassociatedspurroad,iscollocatedwithintheLos41PadresNationalForest.4243

44




2.2.1.6 Segment 5 12Theproposedprojectalsoinvolvestheremovalof12existingLSTs,twowoodH‐framestructures,3andapproximately11,000feetofconductorduetotheirlocationonunstableslopes.These4structuresarelocatedbetweenSegments3Band4andadjacenttoSegment4forapproximately51mile.Structureswouldbeaccessedusingexistingaccessroads.Thestructureswouldberemoved6usingthesametechniquesasdescribedaboveinSection2.3.2.6,“TransferandRemovalofExisting7Structures/Facilities.”Thisareaislabeledas“Segment5”ExistingSubTrans66‐kVToBeRemoved8onFigure2‐1.Nonewstructureswouldbeconstructed.9102.2.1.7 Structures 1112Theproposed66‐kVsubtransmissionlineswouldbebuiltusingLWSpoles,LWSH‐frames,13J‐Towers,andTSPs(Figure2‐2).ThesestructureswouldbedesignedconsistentwiththeSuggested14PracticesforRaptorProtectiononPowerLines:theStateoftheArtin2012(APLIC2012).Figure152‐2showsaschematicofeachproposedstructure,andTable2‐2summarizesthenumberand16dimensionsofstructuresproposedtobeinstalled.1718Table 2‐2 Proposed Structures to be Installed

Pole Type

Approximate Number of Proposed Structures

Approximate Height Above Ground (feet)

Approximate Pole Diameter

(feet)

Approximate Auger Hole Depth (feet)

Approximate Auger

Diameter (feet)

TSP 85 55–145 4–6atbase 15–70 5–9LWSPole 5 60–85 1–2atbase 9–11 2–2.5LWSH‐Frame

6 60–70 1–2atbase 9–11 2–2.5

J‐Tower 4 77‐135 n/a n/a n/aGuyPole Lessthan10 25–40 1–2atbase 9–11 2–2.5Source:SCEdocumentationsubmitted2012‐2014Notes:PoleheightsandspacingwouldbedetermineduponfinalengineeringandwouldbeconstructedincompliancewithCPUCGO95.StructurecountincludesonlythosestructuresthatwouldbepermanentlyinstalledinSegments3A,3B,and4,attheGettyTapsegment,andatCarpinteriaSubstationandCasitasSubstation.Temporarystructuresarenotincluded.Key:CPUC CaliforniaPublicUtilitiesCommissionGO GeneralOrderLWS lightweightsteeln/a notapplicableTSP tubularsteelpole19202122




Figure 2‐2 Proposed 66‐kV Subtransmission Structures

Source:SCE2012




Tubular Steel Pole 1

Approximately85TSPswouldbeinstalledfortheproposedproject,primarilyinSegments3Band24.TheTSPswouldbeapproximately4to6feetindiameteratthebaseandextendapproximately355to145feetaboveground,notincludingtheabove‐groundheightofthefoundation.TheTSPs4wouldbeattachedtoconcretefoundationsapproximately5to9feetindiameterandwouldextend5undergroundapproximately15to70feet,withaprojectionofapproximately2to4feetofconcrete6aboveground.TSPfootingswoulduseapproximately11to175cubicyardsofconcretedepending7uponthediameteranddepthofthefooting.TheTSPswouldbeall‐steelstructureswithadulled8finish.TSPstobeinstalledinSegment4andattheCarpinteriaSubstationwouldbeequippedwith9fittingstoaccommodatetelecommunicationscable.1011Lightweight Steel Pole 12

ApproximatelyfiveLWSpoleswouldbeinstalledaspartoftheproposedproject.LWSpoleswould13notrequireconcretefootings(directburied)andwouldextendapproximately60to85feetabove14ground.ThediameteroftheLWSpoleswouldtypicallybe1to2feetatgroundlevel,taperingtothe15topofthepole.1617Lightweight Steel Pole H‐Frame 18

ApproximatelysixH‐framesconstructedfromLWSpoleswouldbeinstalledfortheproposed19project.Inaddition,theproposedprojectwouldusetwopreviouslyinstalledLWSH‐frames.The20LWSH‐frameswouldbedirect‐buriedandextendapproximately60to70feetaboveground.The21diameteroftheLWSpoleswouldtypicallybe1to2feetatgroundlevel,taperingtothetopofthe22pole.2324J‐Tower 25

FourJ‐TowerswouldbeinstalledalongSegment4aspartoftheproposedproject.SCEcurrently26usesJ‐TowersasanalternativewhereusingaTSPisimpractical(e.g.,wheresiteaccessis27constrained,thusnecessitatinghelicopter‐assistedconstruction,assemblyofsectionsoff‐site,and28thenfinalassemblyofsectionsbyhandon‐site;orwhereduetoengineeringissuestheuseofaTSP29wouldbeproblematic).TheJ‐Towerrequiresfourfootingstobeplacedinasquareapproximately3030feetapart.TheJ‐Towerstructureswouldrangeinheightfrom77to135feet.TheuseofJ‐31Towersatspecificconstructionsitesoftheproposedprojectwould,duetosite‐specificconditions,32allowSCEtoreducegrounddisturbanceattheseconstructionsitesthroughthereductioninsizeor33eliminationofspurroads,retainingwalls,andconstructionpads.3435Guying and Guy Pole 36

Aguyisatensionedcabledesignedtoaddstabilitytoafree‐standingstructure.Fewerthan10guy37wirescouldbeattachedtosubtransmissionstructuresalongSegments3Band4.Guyingconsistsof38aguywire(downguy)attachedtoaburiedanchor,or,whenthereisnotadequatespaceforthe39requireddownguy,ashorterguypole(stubpole)istypicallyplacedwithadownguyandburied40anchorinalocationthathassufficientroomforthesefacilities.Theheight,depth,anddiameterof41stubpolesandguywireanchorswouldbedeterminedonacase‐by‐casebasis.4243Temporary Guard Structures 44

Guardstructuresaretemporaryfacilitiesthatmaybeinstalledattransportation,floodcontrol,and45utilitycrossingsforwirestringing/removalactivities.Thesestructuresaredesignedtostopthe46




movementofaconductorshoulditmomentarilydropbelowaconventionalstringingheight.If1used,guardstructureswouldbetemporarilyinstalledoneachsideofallpublicroadcrossingsand2whereinstallationofthe66‐kVsubtransmissionlinecrossesotherutilitiesalongtheroute.Guard3structurescouldalsobetemporarilyinstalledoneachsideofdrivewaysandprivateroadsthatare4crossed,wherenecessary.Guardstructureswouldbeconstructedonsiteusingwoodpolesand5thenremovedafterconstructioniscomplete.Insomecases,specificallyequippedboomtrucks6couldbesubstitutedforguardstructuresbecausetheywouldalreadybelocatedatthesitefor7generalconstructionactivities.Decisionsregardingwhethertouseguardstructuresorboom8truckswouldbedeterminedduringconstruction.9102.2.1.8 Insulators and Conductors 1112Theapplicantwouldinstallapproximately27,500feetofsinglecircuitand57,000linearfeetofnew13doublecircuit954ACSRconductorandpolymerinsulatorsoneachproposedoverheadstructure14alongSegments3Band4.OntheGettyTapsegment,approximately900feetof653ACSRwouldbe15installed.Allconductorwouldbenon‐specular.1617Fault Return Conductor 18

AlthoughtheexistingandproposedLWSpolesareearth‐groundedstructures,theapplicantwould19provideadditionalfaultprotectionbyinstallingafaultreturnconductor(FRC)alongapproximately2012,000feet(2.3miles)ofSegment3A.ThisconductorwouldelectricallygroundtheLWSpoles.The21purposeofgroundfaultprotectionistominimizepotentialdamagestoequipmentandhazardsfor22personnelandthepublicduetogroundfaultcurrents.2324Federal Aviation Administration Requirements 25

ThealignmentofthelinesandterrainintheregionwouldrequirethattheFederalAviation26Administration(FAA)benotifiedduetotheabove‐groundheightoftheconductoror27telecommunicationscablebetweentowers.TheapplicantwouldfilethenecessaryFAAForm746028forstructuresorlinesasoutlinedinCodeofFederalRegulationsTitle14Part77,uponcompletion29offinalengineeringandpriortoconstruction.AllFAArecommendationswouldbeimplemented30intothedesignoftheproposedproject.3132Ifaspanrequiredthreeorfewermarkerballs,thenthemarkerballsonthespanwouldallbe33aviationorange.Ifaspanrequiredmorethanthreemarkerballs,thenthemarkerballswould34alternatebetweenaviationorange,white,andyellow.Markerballswouldbe36inchesindiameter.35362.2.1.9 Underground Subtransmission Facilities 3738UndergroundsubtransmissionfacilitieswouldtransitionthepreviouslyconstructedSegment1and39Segment2overheadlinesthroughtwoexistingductbanksintotheCasitasSubstation.Oneduct40bankwouldbeapproximately50feetlong,andtheotherwouldbeapproximately80feetlong,fora41totalof130feet.Eachductbankwouldhousethreecopperundergroundsubtransmissioncables42(3,000kcmil3),whichwouldbe225feetand175feetinlength,respectively.Thecablelengthsare433 Acircularmil(cmil)isastandardunitofmeasureusedforelectricalsystemsthatreferstotheareaofthecrosssectionoflargerconductorsizes.Onecmilisequaltotheareaofacirclewitha1‐mildiameter,and1kcmilisequalto1,000cmils.Largeconductorsizesratedforuseonelectricaltransmissionlinesaregenerally0.6to2inchesindiameter.A3,000‐kcmilconductorisapproximately2inchesindiameter.Ingeneral,alargerdiameterconductoriscapableofgreaterelectricalcarryingcapacitythanasmaller




longerthantheductlengthstotakeintoaccounttheadditionalcableneededtoterminatethecable1atthesubstationrackpositionsandatthetopoftheriserpoles.Noundergroundvaultswouldbe2installedattheCasitasSubstation.342.2.1.10 Access and Spur Road 56Accesstotheproposedproject’s66‐kVsubtransmissionlinesforconstruction,operation,and7maintenanceactivitieswouldbefacilitatedbyanetworkofapproximately120milesofexistingdirt8accessroadsandbothexistingandnewspurroads.Suchroadsarelocatedprimarilywithinexisting9ROWsorcoveredundereasements.1011Duringconstruction,theproposedprojectwouldemployexistingpublicroadsandexistingaccess12andspurroadstothemaximumextentpractical.Rehabilitationand/orupgradestoexistingaccess13andspurroadsandconstructionofnewspurroadswouldberequiredtofacilitateconstruction14accessandpermanentmaintenanceaccess.Insomelocations,primarilyalongInSegment3Band15Segment4,theapplicantwouldinstallretainingwall–typestructuresormechanicallystabilized16embankmentstoavoidextensivegradingoperationsandminimizetheareaofsurfacedisturbance.17Shortdistancesofnewspurroadswouldbeconstructedtoaccessstructuresites.Thesespurroads18wouldbeconstructedusingnativesoilsorimportfill,dependinguponwhetherthenativesoil19propertiesaredeterminedtobeunsuitablebaseduponthegeotechnicalrecommendations.20212.2.2 Getty Tap 2223TheGettyTapwouldbelocatedapproximatelyinthemiddleofSegment1(Figure2‐3).Tomaintain24servicetotheGettySubstation,theGettyTapwouldbeinstalledtoconnectconductorcurrently25partoftheexisting(andsoon‐to‐be‐retired)SantaClara–Getty66‐kVSubtransmissionLinetothe26newSantaClara–Carpinteria–Getty66‐kVSubtransmissionLine.IntheGettyTapportionofthe27proposedproject,theapplicantwould:2829

InstallapproximatelytwoTSPs,threeLWSpoles,andfourLWSH‐frames.30

Installapproximatelythreeswitches.31

RemoveapproximatelytwowoodpolesandfourwoodH‐frames.32

Installapproximately900feetof653ACSRfromthetaplocationtoanexisting66‐kV33subtransmissionline.34

Removeapproximately200feetof2/0barecopperconductorand75feetof653ACSR.35

Installoneswitchanditsautomationequipment,andinstallandconnectautomation36equipmentfortwoexistingpoleswitches.37

Removethreeswitches.3839

40

diameterconductor(Grigsby2001).Note:Theoveralldiameterofthecablewouldbeapproximately4inches.




2.2.3 Substations 1 22.2.3.1 Santa Clara 34TheSantaClaraSubstationcontainsboth220‐kVand66‐kVequipment.Theproposedproject5wouldinvolveonlymodificationstothe66‐kVequipment.WorkattheSantaClaraSubstation6wouldoccuronthe66‐kVswitchrackandwithinthecommunicationsroom.Thetwo66‐kV7operatingbusesattheSantaClaraSubstationcurrentlyhave30positions.89Thefollowingworkwouldbeconductedatthreepositionsaspartoftheproposedproject:1011

Sixnewpotentialtransformers(PTs)andtheirassociatedfoundationswouldbeinstalled:a12setoftwoPTsforeachofthethreelinepositions.13

Newprotectionequipmentwouldbeinstalledforthethreelinepositions.14

Circuitbreakers,group‐operateddisconnects,otherassociatedequipment(includingnew15foundations),and200feetof2/0barecopperconductorwouldberemovedfromoneline16position.17

18Followingtheupgradestothe66‐kVpositions,subtransmissionlineswouldberetired,removed,19and/orreconfigured.20212.2.3.2 Casitas 2223WorkrelatedtotheproposedprojectattheCasitasSubstationwouldoccuronthe66‐kV24switchrackandwithintheMechanicalElectricalEquipmentRoom(MEER).Asdiscussedabovein25Section2.2.1.8,fFollowingmodificationstothe66‐kVpositions,bothsubtransmissionlinesthat26enterthesubstationwouldberoutedthroughnewundergroundconduittotheswitchrack,andthe27overheadconductorwouldberemoved.Theproposedprojectwould:2829

Modifytheexistingthe66‐kVswitchrackbyinstalling12surgearresters(threeoneach30operatingandtransferbusandthreeoneachlineposition);newgroup‐operated31disconnectsandnewfoundationsatonelineposition;andnewprotectionequipmentfor32twolinepositions.33

Installandrealign66‐kVsubtransmissionconductorwithinandinproximitytotheCasitas34Substation.Toaccommodatethisrealignment,oneTSPwouldbeinstalledontheeastern35portionofthesubstationpropertyoutsidethesubstationfence.36

ConnectexistinglinestothenewTSPandinstallnewundergroundcablestofacilitate37circuitre‐arrangementinsidethesubstation.38

Installtwoductbanksconsistingoffour5‐inchconduitseach(atotalofeightconduits)on39theapplicant’spropertybothwithinandoutsidethesubstationfencefromthebaseofthe40newTSPtotheexistingcircuitbreakersattwopositions.Atotalofapproximately130feet41ofductintwoductbankswouldbeinstalled.Eachsubtransmissioncablewouldbeplacedin42aconduitandthenconnectedtotheappropriate66‐kVposition.43

44

\\Prtbhp1\gis\SanFrancisco\SantaBarbaraCoReliability\Maps\MXDs\Report_Maps\Figure2_3_Getty_Tap_Overview_Update.mxd February 2014

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Getty Tap Cond uctorOther SCE Facilities

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#* Existing Structures to be rem oved) Found ations To Be Rem oved

Existing Access/Spur RoadMajor Road sCity Lim itsLos Pad res National Forest (USFS)Bio Preserve AreasCoastal Com m ission Zone

Santa Barbara CountyReliability Project

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12.2.3.3 Carpinteria 23AttheCarpinteriaSubstation,workwouldoccuronthe66‐kVswitchrackandwithintheMEER.4Theproposedprojectwould:56

Modifytheexisting66‐kVswitchrackbyextendingthe66kVtransferbusbyonepositionto7createanewlineposition.8

Increasethecapacityofthe66‐kVoperatingandtransferbusesinstalling1590ACSR,which9willinvolvereplacingallexistingporcelaininsulatorsonthe66‐kVswitchrackwith10polymer‐typeinsulators;installingthreesurgearrestersonthe66kVoperatingbusand11threesurgearrestersonthetransferbus;installingnewgroup‐operateddisconnects(and12newfoundations)atonenewandfourexistingpositions;installingfivenewcircuit13breakers(andnewfoundations);installingPTs(andnewfoundations)atonenewandthree14existinglinepositions;andinstallingnewsurgearrestersatfourpositions;installingnew15protectionequipmentforfourlineandbustiepositions.16

17Followingthemodificationtothe66kVswitchrack,thesubtransmissionlinesroutedinandoutof18thesubstationwouldberealignedandupgradedfrom653ACSRto954SAC.Approximately1,10019feetof653ACSRwouldberemoved,and1,200feetof954SACwouldberoutedoverheadand20connectedtothe66‐kVswitchrack.Inaddition,a66‐kVstationswitchandthreesubtransmission21lineswitcheslocatedinthesubstationwouldberemoved.Toaccommodatetheseupgrades,three22existingLSTsandtwowoodpolesinsidethesubstationfencelinewouldbereplacedwiththree23TSPs.24252.2.3.4 Other Substations 2627WorkproposedattheGettySubstation,GoletaSubstation,OrtegaSubstation,andSantaBarbara28Substationwouldincludetheinstallationofupgradedlineprotectionrelayequipmentwithin29existingsubstationequipmentroomsorcabinetsonthesubstationsites.30312.2.4 Telecommunications 3233TelecommunicationscablewouldbeinstalledatornearthetopofoverheadstructuresinSegments341,2,and4.Pullingandsplicinglocationswouldbethesameasthoseusedforinstallationof35subtransmissionconductor.Thepurposeoftheproposedtelecommunicationinfrastructureisto36connecttheexistingtelecommunicationssystemoperatedbytheapplicantandwouldprovide37SupervisoryControlandDataAcquisition(SCADA),protectiverelaying,datatransmission,and38telephoneservicesfortheproposedprojectandassociatedfacilities.Anewtelecommunications39routeisrequiredtoconnecttheCarpinteriaSubstation,CasitasSubstation,SantaClaraSubstation,40andVenturaSubstation.TheconnectionbetweentheVenturaSubstationandSantaClaraSubstation41woulduseexistingtelecommunicationsfacilities.AllworkconductedattheVenturaSubstation42wouldoccurwithintheMEERandwouldnotincludeanyground‐disturbingactivities.43442.2.4.1 Fiber Optic Lines and Telecommunications Equipment 4546Approximately127,000feet(approximately24miles)ofnewtelecommunicationcablewouldbe47installedon66‐kVsubtransmissionstructuresinSegments1,2,and4,connectingtheCarpinteria48




Substation,CasitasSubstation,andSantaClaraSubstation.Thecablewouldbeapproximately0.71inchesindiameter.23Asmentionedabove,mostofthetelecommunicationscablewouldbeinstalledoverheadon4subtransmissionstructures,abovethesubtransmissionconductor.Shortsegmentswouldbe5installedundergroundinconduitasthetelecommunicationscableentersandexitstheCarpinteria,6Casitas,andSantaClaraSubstations.Inadditiontotheundergroundworkatthesubstations,new7relayswouldbeinstalledintheexistingMEERsattheCarpinteriaSubstationandCasitas8Substation,andinthecommunicationsroomattheSantaClaraSubstation.910Newterminalequipment,channelmultiplexerequipment,equipmentcabling,andother11telecommunicationequipmentdeviceswouldbeinstalledwithintheMEERsattheCarpinteria12Substation,CasitasSubstation,andVenturaSubstation,andinthecommunicationroomattheSanta13ClaraSubstation.Thisworkwouldprovidetherequiredtelecommunicationcircuitconnectionto14subtransmissionlineprotectionrelayequipmentwithinthesubstations.15162.2.4.2 Telecommunications Route 1718AsummaryoftheproposedundergroundtelecommunicationcablefacilitiesisprovidedinTable192‐3.Approximately47,500feet(approximately9miles)oftelecommunicationscablewouldbe20installedonsubtransmissionstructuresinSegment1fromtheSantaClaraSubstationtotheCasitas21Substation.TheroutewouldoriginateinthecommunicationsroomattheSantaClaraSubstation.22Thetelecommunicationscablewouldbeinstalledundergroundinanexistingcontrolcabletrench23andthroughapproximately225feetofnewconduitfromthecommunicationsroomtothe24easternmostTSPinSegment1,whereitwouldtransitiontoanoverheadconfiguration.2526Table 2‐3 Proposed Underground Telecommunication Construction

Substation

Trench Length (feet)1,2,4

Inside Substation Area Outside Substation Area SantaClara ~80 ~145Casitas3 ~25 ~75Carpinteria ~80 0Source:SCEdocumentationsubmitted2012‐2014Source:SCE2012Notes:1Novaultswouldbeconstructedaspartoftheproposedproject.2Theapplicantcouldmodifytrenchlengthbasedonfinalengineeringdesign.3TheconduitforSegments1and2isroutedthroughthesametrenchandductbankatCasitasSubstation.

4Conduitwouldbeinstalledintrenchesthatareapproximately11incheswideand36inchesdeep.

27AttheCasitasSubstation,thetelecommunicationscablewouldtransitionfromoverheadto28underground,enteringtheMEERthroughapproximately100feetofnewconduitandtheexisting29controlcabletrench.ThetelecommunicationscablewouldexittheMEERundergroundthrougha30separateconduitwithinthesamecontrolcabletrenchandproceedtoanLSTlocatedoutsidethe31substationfence,whereitwouldtransitiontoanoverheadconfiguration.FromtheCasitas32Substation,thetelecommunicationscablewouldproceedforapproximately78,500feet33(approximately15miles)onsubtransmissionstructuresinSegments2and4totheCarpinteria34Substation.3536




AttheCarpinteriaSubstation,thetelecommunicationscablewouldtransitionfromanoverheadto1anundergroundconfiguration,enteringtheMEERthroughapproximately80feetofnewconduit2andthentheexistingcontrolcabletrench.34Ifused,guardstructureswouldbetemporarilyinstalledoneachsideofallpublicroadcrossings5andwhereinstallationofthetelecommunicationscablecrossesotherutilitiesalongtheroute.6Temporaryguardstructurescouldalsobeinstalledoneachsideofdrivewaysandprivateroads7thatarecrossed,wherenecessary.Guardstructurescouldbeconstructedonsiteusingwoodpoles8andthenremovedafterconstructioniscomplete.Insomecases,specificallyequippedboomtrucks9couldbesubstitutedforguardstructuresbecausetheywouldalreadybelocatedatthesitefor10generalconstructionactivities.Decisionsregardingwhethertouseguardstructuresorboom11truckswouldbedeterminedduringconstruction.12132.2.5 De‐Energizing Facilities 1415Attheconclusionofconstructionoftheproposedproject,sectionsofseveral66‐kVsubtransmission16lineswouldbede‐energized,asfollows:1718

Approximately6,500feetof336ACSRwouldbede‐energizedbetweenSantaClara19SubstationandtheGettyTapinSegment1.20

Approximately49,200feetof2/0barecopperconductorwouldbede‐energizedbetweena21locationapproximately1milefromSantaClaraSubstationtheGettyTapandCasitas22SubstationinSegment1.23

Approximately16,300feetof2/0barecopperconductorwouldbede‐energizedonthe24SantaClara‐Getty66k‐VSubtransmissionLineinSegment3B.25

Approximately12,000feetof653ACSRand8,500feetof2/0barecopperconductorwould26beidledinandadjacenttoSegment4.27

Approximately24,200feetof2/0barecopperconductorand17,600feetof653ACSR28wouldbede‐energizedinSegment4.29

30Thede‐energizedconductorwouldbegroundedontheexistingsubtransmissionstructures,and31theseconductorsandstructureswouldnotberemovedaspartoftheproposedproject.De‐32energizedlinesectionswouldbesecuredbyattachingthemtonewlyinstalledsubtransmission33structuresinstalledaspartoftheproposedprojectorbyusingguywiresattachedtotheexisting34structures35362.2.6 Removal of Additional Structures 3738Theproposedprojectwouldbeconstructedandoperatedinareasthatcontainexistingprivate39irrigationsystemsandotherprivateinfrastructure.Incoordinationwithlandowners,thesesystems40andinfrastructuremaybetemporarilyremoved,relocated,and/orreplacedtofacilitatethesafe41andefficientconstructionoftheproposedprojectandtoprotectthecurrentusesofprivatelands.424344

45




2.3 Construction 12Thefollowingsubsectionsdescribetheconstructionactivitiesassociatedwiththeproposedproject.3Unlessotherwiseindicated,thefollowingconstructiondescriptionsapplytoallproposedproject4components.562.3.1 Staging Areas and Site Preparation 782.3.1.1 Staging Areas 910Constructionoftheproposedprojectwouldrequiretheestablishmentoftemporarystagingareas.11Stagingareaswouldbeusedasreportinglocationsforworkers,vehicleandequipmentparking,and12materialstorage.Theseareascouldalsohaveconstructiontrailersforsupervisoryandclerical13personnelandcouldbelitforstagingandsecuritypurposes.Inaddition,normalmaintenanceand14refuelingofconstructionequipmentwouldalsobeconductedatstagingareas.Allrefuelingand15storageoffuelswouldbeperformedinaccordancewiththeStormWaterPollutionPreventionPlan16(SWPPP).1718Eachstagingareawouldbe0.5to4.7acresinsize.Preparationoftheseareaswouldinclude19installationoftemporaryperimeterfencingand,dependingonexistinggroundconditionsatthe20site,minorgrading,blading,brushingand/orcompactionofsoil,theapplicationofgravelor21crushedrock.Followingthecompletionofconstructionfortheproposedproject,anylandthatmay22bedisturbedatthestagingyardwouldberestoredasclosetopreconstructionconditionsas23possibleortotheconditionsagreeduponbetweenthelandownerandtheapplicant.Theapplicant24anticipatesusingoneormoreofthestagingareas,aslistedinTable2‐4.2526Materialscommonlystoredatthestagingyardswouldinclude,butnotbelimitedto,construction27trailers,constructionequipment,portablesanitationfacilities,steelbundles,steel/woodpoles,28conductorreels,telecommunicationscablereels,hardware,insulators,crossarms,signage,29consumables(suchasfuelandfillercompound),wastematerialsforsalvaging,recycling,or30disposal,andmaterialsusedaccordingtobestmanagementpractices(BMPs),suchasstraw31wattles,gravel,andsiltfences.3233Amajorityofmaterialsassociatedwiththeconstructioneffortswouldbedeliveredbytruckto34designatedstagingyardsandthentransportedbytruckorhelicopterfromastagingyardtothe35constructionorworkareas;somematerialsmaybedelivereddirectlytothetemporary36subtransmissionconstructionareas.Constructionareaswouldbelocatedatorneareachrelated37structurewithintheapplicant’sorpublicROWs.Inadditiontobeingthelocationforconstruction,38theselocationsmayalsobeusedtotemporarilystageproject‐relatedequipmentand/ormaterials.3940TheSCEVenturaServiceCenterwouldserveastheprimaryhelicopterstagingyardforthe41proposedproject.Additionalhelicopterstagingyardsofapproximately0.5acreinsizewouldbe42sitedatlocationsthatoptimizeflighttimetostructurelocations.Theseadditionalhelicopterstaging43yardswouldbeusedfortowerassemblyactivitiesintheunlikelyeventthatwheretowersneeded44towillbeinstalledwithahelicopter.Additionally,operationcrews,aswellasfuelingand45maintenancetrucks,wouldbebasedinthehelicopterstagingyards.4647




Table 2‐4 Staging Areas Proposed

Staging Area Location Condition Dimensions

(acres) Use/Project Component

Yard1 SouthofStanleyAve.andeastofHighway33,VenturaCounty

Existingasphaltedstoragearea

2.1 Existingpolestorageareaandcontractorshow‐uparea

Yard2 Nearthe“Y”(whereSegments2,3B,and4converge);southofCasitasPassRd.onRedMountainFireRd.).

Disturbedgrazingpasture

1.0 Materialandhardwarestorage

Yard3 6374CasitasPassRd.,VenturaCounty

Disturbedgrassmeadow

0.8 Poleandmaterialstaging

Yard4 SouthernCaliforniaEdisonVenturaServiceCenter

Existinggravelandasphaltedstorage

2.0 Materialandhardwarestorage,helicopterstaging,andcontractorshow‐uparea

Yard5 5901CasitasPassRd.,VenturaCounty

Existingasphaltedstorage/parkingarea

0.25 Poleandmaterialstaging

Yard6 SantaAnaRd.(westofCasitasSubstation)

Disturbedgrassmeadow

1.1 Materialstagingandcontractorshow‐uparea

Yard7 CarpinteriaSubstationROW DisturbedROWandorchardtrees


Yard8 SantaClaraSubstation Disturbeddirtroad 0.3 Contractorshow‐uparea

Yard9(CarpinteriaYard1)

NorthwestcorneroftheFoothillRdandSeacoastWayintersection,SantaBarbaraCounty)

Disturbedagriculturalfield


Yard10(CarpinteriaYard2)

500ft.NortheastofthecornerofFoothillRoadandSeacoastWay,SantaBarbaraCounty

Disturbedagriculturalfield

4.7 Materialstagingandcontractorshow‐uparea,helicopterlandingarea

Yard11a(Hwy150YardA)

200ft.eastoftheintersectionofOceanViewRoadandHwy150

DisturbedVegetationExistinggravelandasphaltedstorage


Yard11b(HWY150YardB

750ft.eastoftheintersectionofOceanViewRoadandHwy150

Disturbedvegetationandgravelsurface


Yard11c(Hwy150YardC)

1,200ft.eastoftheintersectionofOceanViewRoadandHwy150,VenturaCounty

Disturbedvegetationandgravelsurface


Yard11d(Hwy150YardD)

475ft.southoftheintersectionofOceanViewRoadandHwy150,VenturaCounty

Disturbedvegetation


Source:SCEdocumentationsubmitted2012‐2014Source:SCE20121

2




Ifnecessary,additionalhelicopterstagingyardsofapproximately0.5acresinsizewouldbesitedat1locationsthatoptimizeflighttimetostructurelocations.Finalsitingofhelicopterstagingyards,if2suchyardsarerequired,wouldbeidentifiedwiththeinputofthesubtransmissionlinecontractor,3landmanagementagencies,privatelandowners,andthehelicoptercontractorasnecessary.4ApprovalforuseofadditionalstagingyardswouldneedtobeobtainedfromtheCPUCthroughthe5minorprojectrefinementprocessdetailedinSection9.1,“MinorProjectRefinement.”672.3.1.2 Grading 89Gradingactivitieswouldberequiredonlyforproposedconstructionactivities,includingamong10others,theroadworkandpreparationofsubtransmissionwirepullingsites,cranepads,andaccess11roads.Thereisnogradingassociatedwiththeproposedsubstationupgrades.12132.3.1.3 Retaining Walls 1415Retainingwallswouldbeinstalledtoavoidextensivegradingandminimizetheareaofsurface16disturbance.Theapplicanthasidentified2631locationsalongtheprojectroutewhereretaining17wallswouldbeused.Table2‐5liststheconstructionsiteswhereretainingwallswouldbeinstalled18andthetypeofstructuretobeinstalled.Figure2‐4showsthelocationoftheseconstructionsites.1920Table 2‐5 Proposed Locations for Retaining Walls

Construction Site Retaining Wall‐Type

Structure Construction Site Retaining Wall‐Type

Structure 62 SoldierPile 104 MSE64 MSE 105 MSE64 SoldierPile 107 MSE67 MSE 109 MSE74 MSE 118 MSE76 MSE 120 MSE76 GabionSoldierPile 125 MSE85 MSE Accessroadbetween

ConstructionSites73‐74MSE

86 MSE AccessroadbetweenConstructionSites87‐88

MSE


MSE


MSEorSoldierPile


MSE

97 SoldierPile AccessroadbetweenConstructionSites116‐117

MSE


MSE


MSE

100 MSE Key:MSE mechanicallystabilizedembankment21

22




Table 2‐5 Proposed Locations for Retaining Walls 1

Source:SCEdocumentationsubmitted2012‐20142Key:3MSE mechanicallystabilizedembankment452.3.2 66‐kV Subtransmission Lines and Getty Tap 6 72.3.2.1 Access and Spur Roads 89Approximately120milesofexistingaccessandspurroadswouldbeemployedforconstructionof10theproposedproject.Atpresent,approximately25milesoftheseexistingroadsareprojectedto11requirerestorationwork,includingre‐gradingandrepairoftheexistingroadbed.Theseroads12wouldbeclearedofvegetation;blade‐gradedtoremovepotholes,ruts,andothersurface13irregularities;andre‐compactedtoprovideasmoothanddenseridingsurfacecapableof14supportingheavyconstructionequipment.1516Atpresent,theapplicantprojectsthatapproximatelyfiveofthe120milesofexistingaccessand17spurroadswouldrequireextensiverehabilitation,suchas:1819

Wideningoftheexistingroadbedatcurvesandotherlocations.20

Installationofnew,orrepairofexisting,drainagestructuressuchaswaterbars,overside21drainsandpipeculvertstoallowforconstructiontrafficusage,aswellastopreventroad22damageduetouncontrolledwaterflow.23

Repairandstabilizationofslides,washouts,andotherslopefailuresminimizesurface24disturbancebyinstallingretainingwallsorothermeansnecessarytopreventfuture25failures.Thetypeofstructureusedwouldbebasedonspecificsiteconditions.26

2728

Construction Site Retaining Wall‐Type Structure

Construction Site Retaining Wall‐Type Structure

62 MSE 104 MSE64 MSE 105 MSE64 SoldierPile 107 MSE67 MSE 109 MSE74 MSE 118 MSE76 MSE 120 MSE76 SoldierPile Accessroadbetween

ConstructionSites73‐74MSE

76 Gabion AccessroadbetweenConstructionSites111‐112

MSE

85 MSE

\\prtbhp1\GIS\SanFrancisco\SantaBarbaraCoReliability\Maps\MXDs\Report_Maps\Retaining_Walls_Overview.mxd April 2015

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£¤224

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CARPINTERIA

Figure 2-4Retaining Wall

Construction SitesSanta Barbara County


Californiaº 0 0.5MilesAZ

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NV

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Existing Electrical TransmissionLines

Segment 2Segment 3ASegment 3BSegment 4Existing SubTrans 66-kV To BeRemoved

! Existing Substation Locations

!(G Getty Tap!P Construction Site

Access Road ConstructionSiteLos Padres National Forest(USFS)

Major RoadsLocal roadCounty Boundary




Inaddition,theproposedprojectwouldrequiretheconstructionofapproximately4milesofnew1spurroads.Constructionactivitiesforthesenewspurroadswouldbesimilartothoseassociated2withtherehabilitationofexistingroads.Accessandspurroadswouldhaveaminimumdrivable3widthof14feet(18feetwidetotal,includinga2‐footshoulderoneachsideoftheroad)butmaybe4widerdependingonfinalengineeringrequirementsandfieldconditions.Generally,thegradeof5accessandspurroadswouldnotexceed12percent;however,incertaincasesgradescouldexceed612percentinordertominimizegradinginareaswithexistingsteepterrainandroadgrades,but7wouldstillcomplywithallapplicableagencyrequirements.reachapproximately14percent.For8gradesexceeding12percent,thesewouldnotexceed40feetinlengthandwouldbelocatedmore9than50feetfromanyotherexcessivegradeoranycurve.AllTypically,curveswouldhavearadius10ofcurvaturenotlessthan50feet,measuredalongthecenterlineoftheusableroadsurface.1112Allspurroadsmorethan500feetlongwouldincludeaY‐typeorcircle‐typeturnaround.Wherea13circle‐typeturnaroundisnotpractical,theapplicantwouldconstructanalternativeturnaround14configurationtoprovidevehicleaccesstothestructurelocation.Thispermanentareawouldalsobe15usedasacranepadforbothconstructionandongoingoperationandmaintenanceactivities.16Approximately70turnaroundswouldbeconstructedorreestablished.1718Allaccessandspurroadswouldbeleftinplacetofacilitatefutureaccessforoperationsand19maintenancepurposes.2021ACattrailwouldbecreatedtoaccessconstructionsite128.Acattrailisarudimentary,temporary22meansofoverlandaccesstypicallydevelopedbyabulldozer.Ingeneral,cattrailsareusedwhere23theterrainistoosteepforconventionalconstructionequipmenttosafelynavigatetotheworksite.24Thecattrailwouldnotbecompactedlikeanaccessroad,andsomevegetationwouldlikelyremain25onthecattrail.Followingconstruction,thecattrailwouldeitherberevegetatedorleftto26revegetatenaturally.27282.3.2.2 Structure Site Preparation 2930Structurepadlocationsandlaydown/workareaswouldfirstbegradedand/orclearedof31vegetationasrequiredtoprovideareasonablylevelandvegetation‐freesurface.Siteswouldbe32gradedsuchthatwaterwouldruntowardthedirectionofthenaturaldrainage.3334Inaddition,drainagewouldbedesignedtopreventpondinganderosivewaterflowsthatcould35causedamagetothestructurefootings.Thegradedareawouldbecompactedtoatleast90percent36relativedensityandwouldbecapableofsupportingheavyvehicles.3738Alaydown/workareawouldbeestablishedadjacenttoeachpoleinstallationlocation.This39laydown/workareawouldbeusedforthetemporarystagingandassemblyofthepole.Inaddition,40withinthelaydown/workarea,acranepadofapproximately40by40feetcouldbeestablished.41Whereexistingterrainwithinthelaydown/workareaissufficienttosupportcraneoperations,the42cranepadwouldbedevelopedwithinthelaydown/workarea,adjacenttothepoleinstallation43location.Inareaswheretheexistingterrainwithinthelaydown/workareaisinsufficienttosupport44craneoperations,aseparatecranepadmaybeclearedofvegetationand/orgradedasnecessaryto45provideanappropriateandlevelsurfaceforcraneoperation.4647Insomesteepand/orruggedterrain,benchingmayberequiredinordertoprovideaccessfor48footingconstruction,assembly,erection,andwirestringingactivitiesduringlineconstruction.49




Benchingisatechniqueinwhichanearth‐movingvehicleexcavatesaterracedaccesstostructure1locations.StructurefoundationsforeachTSPwouldrequireasingledrilled,poured‐in‐place2concretefooting.Thefoundationprocessbeginswiththedrillingofafoundationhole.Theholes3wouldbedrilledusingtruck‐ortrack‐mountedexcavatorswithvariousdiameteraugerstomatch4thediameterrequirementsofthestructuretype.TSPswouldrequireanexcavatedhole5approximately5to9feetindiameterandapproximately15to70feetdeep.TSPfootingswould6projectapproximately2to4feetabovegroundlevel.Actualfootingdiametersanddepthsforeach7ofthestructurefoundationswoulddependonthesoilconditionsandtopographyateachsiteand8wouldbedeterminedduringfinalengineering.910Theexcavatedmaterialwouldbedistributedateachstructuresite,usedtobackfillexcavations11fromtheremovalofnearbystructures(ifany),orusedintherehabilitationofexistingaccessroads.12Alternatively,theexcavatedsoilmaybeprovidedtothepropertyowner,uponrequest,ordisposed13ofatanoff‐sitedisposalorrecyclingfacilityinaccordancewithallapplicablelaws.1415Followingexcavationofthefoundationfootings,steelreinforcedrebarcageswouldbeset,survey16positioningwouldbeverified,andconcretewouldthenbeplaced.Steelreinforcedrebarcagesmay17beassembledatstagingyardsanddeliveredtoeachstructurelocationbyflatbedtruckor18assembledatthejobsite.Dependinguponthetypeofstructurebeingconstructed,soilconditions,19andtopographyateachsite,TSPswouldrequireapproximately11to175cubicyardsofconcrete20deliveredtoeachstructurelocation.2122Theuseofwater,fluidstabilizers,drillingmud,and/orcasingswouldbemadeavailabletocontrol23groundcavingandtostabilizethesidewallsfromsloughing.Iffluidstabilizerswereused,mud24slurrywouldbeaddedinconjunctionwiththedrilling.Theconcreteforthefoundationwouldthen25bepumpedtothebottomofthehole,displacingthemudslurry.Mudslurrybroughttothesurfaceis26typicallycollectedinapitortankadjacenttothefoundationand/orvacuumeddirectlyintoatruck27tobereusedordiscardedatanoff‐sitedisposalfacility,inaccordancewithallapplicablelaws.2829Concretesampleswouldbedrawnatthetimeofpourandtestedtoensurethatengineered30strengthswereachieved.Aconcretemixofthetypenormallyusedinthistypeofprojecttakes31approximately20daystocuretoanengineeredstrength.Thisstrengthisverifiedbycontrolled32testingofsampledconcrete.Oncethisstrengthhasbeenachieved,crewsfortheproposedproject33wouldbepermittedtocommenceerectionofthestructure.3435Conventionalconstructiontechniquesasdescribedabovewouldgenerallybeusedforinstalling36newfoundations.Alternativefoundationinstallationmethodsmaybeusedwhereconventional37methodsarenotpractical.Incertaincases,equipmentandmaterialmaybedepositedatstructure38sitesusinghelicoptersorbyworkersonfoot,andcrewsmaypreparethefoundationsusinghand39laborassistedbyhydraulicorpneumaticequipment,orothermethods.4041Duringconstruction,existingconcretesupplyfacilitieswouldbeusedwherefeasible.Foranyareas42thatdonothaveconcretesupplyfacilities,atemporaryconcretebatchplantwouldbesetupinan43establishedmaterialstagingyard.Equipmentforthisplantwouldincludeacentralmixerunit44(drumtype);threesilosforinjectingconcreteadditives,flyash,andcement;awatertank;portable45pumps;apneumaticinjector;andaloaderforhandlingconcreteadditivesnotinthesilos.Dust46emissionswouldbecontrolledbywateringtheareaandbysealingthesilosandtransferringthe47fineparticulatespneumaticallybetweenthesilosandthemixers.4849




Priortodrillingforfoundations,theapplicantoritscontractorwouldcontactUnderground1ServiceAlerttoidentifyanyundergroundutilitiesintheconstructionzone.23Tubular Steel Pole 4

TSPsconsistofmultiplesections.Thepolesectionswouldbeplacedintemporarylaydown/work5areasateachpolelocation.Dependingonconditionsatthetimeofconstruction,thetopsections6maycomepre‐configured,beconfiguredontheground,orbeconfiguredafterpoleinstallationwith7thenecessarycrossarms,insulators,andwirestringinghardware.89Acranewouldbeusedtoseteachsteelpolebasesectionontopofthepreviouslyprepared10foundations.IfexistingterrainaroundtheTSPlocationisnotsuitabletosupportcraneactivities,a11temporarycranepadwouldbeconstructedwithinthelaydown/workarea.Eachpolebasesection12wouldbesecuredfirst,andthenthesubsequentsectionoftheTSPwouldbeplacedonthebase13section.Thepolesectionsmayalsobespot‐weldedtogetherforadditionalstability.Dependingon14theterrainandavailableequipment,thepolesectionscouldalsobepre‐assembledintoacomplete15structurepriortosettingtheTSPs.1617Lightweight Steel Pole 18

EachLWSpolewouldrequireaholetobeexcavatedusinganaugerorabackhoe.Excavated19materialwouldbehandledaccordingtotheapplicant’swastemanagementpractices(Section2.4.4).20LWSpolesconsistofseparatebaseandtopsectionsandmaybeplacedintemporarylaydown/work21areasateachpolelocation.Dependingonconditionsatthetimeofconstruction,thetopsections22maycomepre‐configured,beconfiguredontheground,orbeconfiguredafterpoleinstallationwith23thenecessarycrossarms,insulators,andwire‐stringinghardware.TheLWSpoleswouldbe24installedintheholes,typicallybyalinetruckwithanattachedboom.Eachpolebasesectionwould25besecuredfirst,andthenthetopsectionplacedonthebasesection.Dependingontheterrainand26availableequipment,thepolesectionscouldalsobeassembledintoacompletestructureonthe27groundpriortosettingthepolesinplacewithintheholes.2829Lightweight Steel Pole H‐Frame 30

EachLWSpoleforanH‐framestructurewouldrequireaholetobeexcavatedusinganaugerora31backhoe.Excavatedmaterialwouldbehandledaccordingtotheapplicant’swastemanagement32practices(Section2.4.4).LWSH‐framepolesconsistofseparatebaseandtopsectionsandmaybe33placedintemporarylaydown/workareasateachpolelocation.Dependingonconditionsatthe34timeofconstruction,thetopsectionsmaycomepre‐configured,beconfiguredontheground,orbe35configuredafterpoleinstallationwiththenecessarycrossarms,insulators,andwire‐stringing36hardware.TheLWSpoleswouldthenbeinstalledintheholes,typicallybyalinetruckwithan37attachedboom.Thecross‐bracingsusedtoconnectthetwopoleswouldbeinstalledaftererection38ofthestructure.3940




J‐Tower 1

TheJ‐Towerfootingswouldbedugbyhandorbyadrillingrig,dependingonthedepthofthe2footingsandterrainconstraints.Steelandconcreteforthefootingswouldbeflowntothesitebya3helicopterormovedoverlandtothesiteusingexistingaccessroads.Ifhelicopter‐supported4constructionisused,sectionsoftheJ‐Towerwouldbeassembledatahelicopterlanding5zone/stagingarea,andthentransportedtotheconstructionsitebyhelicopterandboltedtogether6byhand,witheachsuccessivesectionbeingplacedonthetopofthepreviously‐transportedsection.7Ifoverlandtransportationofsteelischosen,steelmembersforthestructurewouldbemovedtothe8siteviaaccessandspurroadsorviathecattrailandassembledon‐sitebyhand.9 10Guy Pole Installation 11

WhererequiredtostabilizeLWSpoles,eachwoodguypolewouldrequireaholetobeexcavated12usinganauger,backhoe,orhandtools.Excavatedmaterialwouldbehandledaccordingtothe13applicant’swastemanagementpractices(Section2.4.4).Thewoodpoleswouldbeplacedin14temporarylaydown/workareasateachpolelocation.Thewoodpoleswouldthenbeinstalledin15theholes,typicallybyalinetruckwithanattachedboom.1617Guard Structures 18

Guardstructuresaretemporaryfacilitiesthataretypicallyinstalledattransportation,floodcontrol,19andutilitycrossingsforwirestringing/removalactivities.Thesestructuresaredesignedtostopthe20movementofaconductorshoulditmomentarilydropbelowaconventionalstringingheight.The21applicantestimatesthatapproximately60guardstructuresmayneedtobeconstructedaspartof22theproposedproject.2324Typicalguardstructuresarestandardwoodpoles.Dependingontheoverallspacingofthe25conductorsbeinginstalled,approximatelytwotofourtemporaryguardpoleswouldberequiredon26eithersideofacrossing.Insomecases,specificallyequippedboomtrucksor,athighwaycrossings,27temporarynettingcouldbeinstalledinsteadofguardpoles.Thetemporaryguardstructureswould28beremovedaftertheconductorissecuredintoplace.2930Forhighwayandcertainwatercrossings,andwheretheproposedroutewouldcross31telecommunicationsandotherwires,theapplicantwouldworkcloselywiththeapplicable32jurisdictionorownerentitytosecuretheapprovalsnecessarytostringconductoroverthe33applicableinfrastructure.34352.3.2.3 Wire Stringing, Pulling, and Splicing 3637WirestringingactivitieswouldbeinaccordancewithSCEcommonpracticesandsimilartoprocess38methodsdetailedintheIEEEStandard524‐2003(GuidetotheInstallationofOverhead39TransmissionLineConductors).Safetydevicessuchastravelinggrounds;guardstructures;radio‐40equippedrovingvehicles;andsafetypersonnelwouldbeinplacetoensurethesafetyofworkers41andthepublic,priortotheinitiationofwirestringingactivities.Advancedplanningwouldbe42implementedtodeterminecircuitoutages,pullingtimes,andsafetyprotocolstoensurethesafe43installationofwire.4445Wirestringingactivitiesincludetheinstallationofconductor,telecommunicationscable,FRC,46insulators,stringingsheaves(rollersortravelers),vibrationdampeners,weights,suspensionand47dead‐endhardwareassembliesontosubtransmissionlinestructures.Eachwire‐stringingoperation48




wouldincludeawirepullerpositionedatoneendandatensionerandwirereelstandtruck1positionedattheotherendofthelinesegmenttobepulled.23Thefollowingfivestepsdescribetypicalwirestringingactivities:45

1. Planning:Developawirestringingplantodeterminethesequenceofwirepullsandthe6set‐uplocationsforthewirepull/tensioning/splicingequipment.7

2. SockLineThreading:Abuckettruckistypicallyusedtoinstallalightweightsocklinefrom8structuretostructure.Thesocklinewouldbethreadedthroughthewirerollersinorderto9engageacamlockdevicethatwouldsecurethepullingsockintheroller.Thisthreading10processwouldcontinuebetweenallstructuresthroughtherollersoftheparticularsetof11spansselectedforaconductorpull.Inareaswhereabuckettruckisunabletoinstalla12lightweightsockline,ahelicopterwouldflythelightweightsocklinefromstructureto13structure.Thesocklinewouldbethreadedthroughthewirerollersinordertoengagea14camlockdevicethatwouldsecurethepullingsockintheroller.Thisthreadingprocess15wouldcontinuebetweenallstructuresthroughtherollersofaparticularsetofspans16selectedforaconductorpull.17

3. Pulling:Thesocklinewouldbeusedtopullintheconductorpullingropeand/orcable.The18pullingropeorcablewouldbeattachedtotheconductorusingaspecialswiveljointto19preventdamagetothewireandtoallowthewiretorotatefreelytopreventcomplications20fromtwistingastheconductorunwindsoffthereel.21

4. Splicing,Sagging,andDead‐Ending:Oncetheconductorispulledin,ifnecessary,allmid‐22spansplicingwouldbeperformed.Oncethesplicinghasbeencompleted,theconductor23wouldbesaggedtopropertensionanddead‐endedtostructures.24

5. Clipping‐In:Aftertheconductorisdead‐ended,theconductorswouldbesecuredtoall25tangentstructures;aprocesscalledclippingin.Wherepossible,theconductorbeing26replacedwouldbeusedtopullinthenewconductor.27

28Thepuller,tensioner,andsplicingset‐uplocationsassociatedwiththeproposedprojectwouldbe29temporaryandthelandthatmaybedisturbedwouldberestoredtoasclosetopreconstruction30conditionsaspossibleortotheconditionsagreeduponbetweenthelandownerandtheapplicant.31Theset‐uplocationsrequirelevelareastoallowformaneuveringoftheequipmentand,when32possible,theselocationswouldbelocatedonexistingroadsandlevelareastominimizetheneedfor33gradingandcleanup.Thenumberandlocationofthesesiteswouldbedeterminedduringfinal34engineering.Theapproximateareaneededforstringingset‐upsassociatedwithwireinstallationis35variableanddependsuponterrain.3637Wirepullsarethelengthbetweentwowireinstallationpointsalongtheline.Wirepullsare38designedbasedonavailabilityofdead‐endstructures,conductorsize,geometryofthelineas39affectedbypointsofinflection,terrain,andsuitabilityofstringingandsplicingequipmentset‐up40locations.Onrelativelystraightalignments,typicalwirepullsoccurapproximatelyevery10,000to4112,000feet.Whenthelineroutealignmentcontainsmultipledeflectionsorissituatedinrugged42terrain,thelengthofthewirepullisdecreased.Generally,pullinglocationsandequipmentset‐ups43wouldbeindirectlinewiththedirectionoftheoverheadconductorsandestablished44approximatelyadistanceofthreetimestheheightawayfromtheadjacentstructure.4546




Eachstringingoperationconsistsofapullerset‐uppositionedatoneendandatensionerset‐up1withwirereelstandtruckpositionedattheotherendofthewirepull.Pullingandwiretensioning2locationsmayalsobeusedforsplicingandfieldsnubbingoftheconductors.Fieldsnubs(i.e.,3anchoringanddead‐endhardware)wouldbetemporarilyinstalledtosagconductorwiretothe4correcttensionatlocationswherestringingequipmentcannotbepositionedinbackofadead‐end5structure.672.3.2.4 Insulators and Conductors 89Installation of Marker Balls 10

Aspresentedearlier,allFAArecommendations,includingtheinstallationofmarkerballson11appropriateinfrastructurewherenecessary,wouldbeimplementedintothedesignoftheproposed12project.Inmostcases,markerballswouldbeinstalledbyhelicopterbecauseofthismethod’s13efficiency,minimalgrounddisturbance,andabilitytooperateinruggedterrain.Inlimited14circumstances,markerballsmaybeinstalledusingaspacercart,butthismethodisgenerallyless15efficientandmayresultinadditionalgrounddisturbance.1617Theapplicantwouldselectthemostsuitableinstallationmethodforaparticularspan.The18applicantwouldgenerallyusealight‐dutyhelicoptertoinstallthemarkerballs.Installationby19helicoptermayrequireanoutagethatde‐energizesnearbyenergizedsubtransmissionlinesand20transmissionlines.2122Helicopterinstallationrequiresstagingatalandingzone,wherethehelicopterwouldpickupthe23constructionworkerandamarkerball(s)andtraveltotheinstallationlocation.Tominimize24grounddisturbance,theapplicantwouldusepreviouslydisturbedareasaslandingzones.2526Inlimitedcircumstances,theapplicantmayemployaspacercarttoinstallmarkerballsand27associatedhardware.Thespacercartwouldbeinstalledontheoverheadwirebyinstallationcrews,28eitherbyhelicopterorbyusingacraneplacedonanexistingcranepadcreatedduringthe29constructionofthestructure.Becauseanyinstallationofspacercartsbycranewouldtakeplace30duringconstruction,itisnotexpectedthatinstallationoruseofspacercartswouldcauseany31additionalgrounddisturbance.3233Duetotheterrainintheareaswheremarkerballsmayberequired,installationbycranewould34likelybeinfeasibleandmayentailsignificantadditionalgrounddisturbance.Forthesereasons,35craneinstallationofmarkerballswouldnotbeconsideredfortheproposedproject.3637Fault Return Conductor 38

TheFRCwouldbeinstalledalong2.3milesofSegment3A.Thisconductorwouldbeinstalled39parallelwiththeexistingoverhead66‐kVsubtransmissionlinerelocationproposedalongSegment403A,about1to2feetabovetheexistingthird‐partytelecommunicationfacilities,and4to6feet41belowtheexisting16‐kVdistributionline(Figure2‐5).TheapplicantanticipatesinstallingtheFRC42withinthesametimeframeastheproposedoverheadtelecommunicationline.Tomaintainproper43clearances,theexistingtelecommunicationanddistributionfacilitiesthatwouldberelocatedto44existingLWSpolesmayneedtoberearranged.4546

47

1003948.0001.06.a.ai (2015 CORP Archive) 05/14/2015

Photo source: Regulatory A�airs - Energy & Environmental Policy Southern California Edison

Figure 2-5

Example Fault Return Conductor

66-kV

4/0 FRC

Telecom

This example 66-kV LWS steel pole line does not have a 16-kV line co-located on it; however, for purposes of understanding where such a line would be for comparison relating to S e g m e n t 3 A o f S B C R P, t h i s ye l l ow l i n e represents the location on the poles where a typical 16-kV line would be co-located.




12.3.2.5 Underground Facilities 23Theproposedprojectwouldrequireatotalof130feetofnewunderground66‐kVsubtransmission4lineandassociatedtransitionandsupportstructuresattheCasitasSubstation.Installingthe5undergroundsubtransmissioncablewouldrequiresurveying,trenching,ductbankinstallation,6pullingandsplicingofthecable,andconstructionoftransitionstructures.Theseactivitiesare7describedbelow.89Surveying 10

Theapplicantwouldconductasurveyofexistingundergroundutilitiesalongtheproposed11undergroundsubtransmissionductbankroute.Theapplicantwouldnotifyallapplicableutilities12throughtheUndergroundServiceAlertserviceinordertolocateandmarkexistingutilities.In13addition,whennecessary,theapplicantwouldconductexploratoryexcavationstoverifythe14locationofexistingutilities.15 16

Trenching 17

Anapproximately20‐to24‐inch‐widetrenchvaryingindepthfromapproximately5feetto12feet18wouldberequiredtoinstalltheproposed66‐kVundergroundsubtransmissionline.4During19trenching,theapplicantwouldmarkthelocationandapplicableundergroundutilities,layouta20trenchline,saworcutasphaltorconcretepavementasnecessaryalongthetrenchline,digtothe21appropriatedepthwithabackhoeorsimilarequipment,andinstalltheductbank.Oncetheduct22bankhasbeeninstalled,thetrenchwouldbebackfilledwithsandslurrymix.Theapplicantwould23disposeofexcavatedmaterialsatanoff‐sitedisposalfacilityinaccordancewithapplicable24regulations.Similarly,shouldgroundwaterbeencountered,theapplicantwouldpumpitintoatank25andtransportittoanoff‐sitedisposalfacilitypursuantapplicableregulations.Steelplateswouldbe26placedoveropentrenchsectionstomaintainvehicularandpedestriantraffic.Provisionsfor27emergencyvehicleaccesswouldbearrangedwithlocaljurisdictionsinadvanceofconstruction28activities.2930Duct Bank Installation 31

Theproposedductbankwouldcomprisecableconduit,spacers,groundwire,andconcrete32encasement.Theductbankwouldconsistoftwosetsoffour5‐inchdiameterpolyvinylchloride33(PVC)conduitsfullyencasedwithaminimumof3inchesofconcrete.Themajorityoftheproposed3466‐kVundergroundsubtransmissionductbankswouldbeinstalledinaverticallystacked35configuration,andeachductbankwouldbeapproximately21inchesinheightby20inchesin36width.Inareaswhereundergroundutilitiesarehighlycongestedorwhereitisnecessarytofanout37theconduitstoreachterminationstructures,theapplicantmayberequiredtouseaflat38configurationductbank.Intheeventthattheproposed66‐kVsubtransmissionductbankwould39crossorrunparalleltootherundergroundutilitiesstructuresthatoperateatnormalsoil40temperature(gas,telephone,watermains,stormdrains,sewerlines),aminimalradialclearanceof416inchesforcrossingand12inchesforparallelingthesestructureswouldberequired.Clearances42anddepthsusedbytheapplicantwouldcomplywithRule41.4ofCaliforniaPublicUtilities43Commission(CPUC)GeneralOrder(GO)128.444 TheapplicantwouldadjusttrenchdimensionstomeettheCaliforniaOccupationalandSafetyHealthAdministrationrequirements.Variationsintrenchdepthareduetothechangeinelevationbetweenthedrivewayandsubstationyard.




1Cable Pulling, Splicing, Termination 2

Followingtheductbankinstallation,theapplicantwouldpulltheelectricalcablesthroughtheduct3bankbyusingacablereelandapullingreellocatedattheoppositeend.Further,theapplicant4wouldterminatecablesattransitionstructures,whichwouldplacecablesfromundergroundto5overheadconfiguration.67Transition Structures 8

TheapplicantwouldinstallaTSPriserpoletotransitioncablesfromundergroundtoanoverhead9configuration.Thistransitionstructurewouldsupportcableterminations,lightningarresters,and10dead‐endhardwareforoverheadconductors.Constructionmethodsforthisstructurearedescribed11inSection2.3.2.2.Ontheoppositesideoftheductbank,cableswouldtransitionthroughconduit12sweepsandconnecttotheexisting66‐kVswitchrackpositionswithintheCasitasSubstation.13142.3.2.6 Transfer and Removal of Existing Structures/Facilities 1516Theproposedprojectwouldinvolveremovingstructures,conductor,andassociatedhardware.17Table2‐6summarizesthenumberofstructuresandprojectcomponentsproposedtoberemoved.18Thecomponentswouldberemovedbyusinghelicoptersinareasofdifficultaccess(particularly19alongSegment4),orbyequipmentandvehiclesinareasaccessiblebyground.202122Table 2‐6 Summary of Structures and Conductor Proposed To Be Removed

Project Component Structures Structure

Foundations1 Conductor Type/Length

Segment1 0 15 N/ASegment2 0 15 N/ASegment3A 17woodpoles 0 N/ASegment3B 31LSTs 31 2/0barecopper/30,000feetSegment4 74LSTs;

7woodpoles;1woodH‐frame

74 2/0barecopper/36,740feet653ACSR/47,600feet

Segment5 12LSTs2woodH‐frames

12 2/0barecopper/10,776feet

GettyTap 4woodH‐frames;3woodpoles

0 2/0barecopper/200feet653ACSR/75feet

CarpinteriaSubstation 3LSTs;2woodpoles;3switches

3 653ACSR/1,070feet

CasitasSubstation 0 0 2/0barecopper/180feet336ACSR/74feet

Source:SCEdocumentationsubmitted2012‐2014Source:SCE2012Note:1Maximumnumberofstructureremovals.Key:ACSR Aluminumconductorsteel‐reinforcedLST LatticesteeltowerN/A Notapplicable




1Forareasaccessibleontheground,thetransferandremovalofexistingstructuresandfacilities2wouldinvolvethefollowingsequenceofactivities:3 4

Wirepullinglocations:Wirepullingsiteswouldtypicallybelocatedapproximatelyevery510,000to12,000feetalongtheexisting66‐kVsubtransmissionlines.Pullingsitescould6occuratmorefrequentintervalsdependingonthelocationsofdead‐endstructuresand7turningpoints.Pullandtensioningequipmentwouldbesitedatthewirepullingsitesto8facilitateremovaloftheexistingconductors.9

Conductorremoval:Afterthewirepullingequipmentisinplace,theoldconductoris10typicallytransferredtothenewstructuresthatwouldbepre‐riggedwithrollers.Theold11conductorwouldthenbepulledoutwithapullingropeand/orcableattachedtothetrailing12endoftheconductor,whichwouldbeusedtopullinthenewconductor.Theoldconductor13wirewouldbetransportedtoaconstructionyard,whereitwouldbepreparedforrecycling.14

Structureremoval:Foreachstructuretoberemoved,anapproximately100‐by150‐foot15workareawouldtypicallyberequired.Moststructureremovalactivitieswouldusethe16cranepadorotherpreviouslydisturbedareasestablishedforstructureinstallation.If17previouslydisturbedareasadjacenttothestructurearenotavailable,anareawouldbe18clearedofvegetationandgradedifnecessary.Thecranewouldtypicallybepositioned19approximately60feetfromthetowerlocationtodismantlethetowerstructure.Structures20wouldbedismantleddowntothefoundationsandthematerialswouldbetransportedtoa21stagingyard,wheretheywouldbepreparedforrecycling.Inareasnotsuitedforcrane22access,towersmaybedisassembledbyhand.23

Footing/foundationremoval:Footingswouldberemovedtoapoint1to2feetbelowgrade,24exceptinplaceswhereremovalcouldresultinerosionproblemsorlandownerconcerns,25andtheholeswouldbefilledwithexcesssoilandsmoothedtomatchthesurrounding26grade.Footingmaterialswouldbetransportedtoastagingyard,wheretheywouldbe27preparedfordisposal.28

29Priortoremovalofexistingstructures,subtransmissionlineswouldbetransferredtonew30structures.Approximately17woodpolesthatareadjacenttopreviouslyinstalledLWSpolesin31Segment3Awouldberemovedaspartoftheproposedproject.Sixofthese17polescurrentlyhave32distributionfacilities.Priortoremovalofexistingpoles,theexistingdistributionlinesand33associatedhardwarewouldbetransferredtotheLWSpoles.Allremainingdistributionequipment34thatisnotreusedbytheapplicantwouldberemovedanddeliveredtoafacilityforrecycling.35Typicaldistributiontransferwouldincludetheuseoftwobuckettrucks.3637Aseparategroupoffiveofthese17existingwoodpolescurrentlyhaveonlythird‐party38telecommunicationfacilities.Thethird‐partyequipmentwouldbetransferredbyitsownerorby39theapplicanttothesubtransmissionpolesinSegment3Aaspartoftheproposedproject,orthe40applicantwouldrelinquishthesepolestothethirdparty.4142Fourofthe17existingwoodpoleshavenoequipmentinstalledonthem.Thesepoleswouldbe43removedbytheapplicantaspartoftheproposedproject.4445Woodpolesnotrelinquishedtoathird‐partyjointutilityownerwouldbecompletelyremovedonce46thesubtransmission,distribution,andtelecommunicationlinesaretransferredtonewpoles.This47processwouldremovetheentirepole,includingabove‐andbelow‐gradeportions.Theholesleft48




fromremovingthepoleswouldbebackfilledwithspoilsthatmaybeavailableasaresultofthe1excavationfornewpolesandimportedfillasneeded.Nonon‐relinquishedexistingwoodpoles2wouldbetoppedandleftinplace.Typicalpoleremovalwouldincludetheuseofaboomtruck,as3wellasonecompaniontruck,tosupportthestructureduringdismantlingandremovalofthepole.4Backfilledholeswouldbecompactedandsmoothedtomatchthesurroundinggrade.56Dependingontheirtype,condition,andoriginalchemicaltreatment,removedwoodpolescouldbe7reusedbytheapplicantforotherpurposes,disposedofinaClassIhazardouswastelandfill,or8disposedofinthelinedportionofaRegionalWaterQualityControlBoard(RWQCB)certified9municipallandfill.10112.3.2.7 Energizing Subtransmission Lines 1213Energizingthenewlinesisthefinalstepincompletingthesubtransmissionconstruction.Toreduce14theneedforelectricserviceinterruption,de‐energizingandre‐energizingtheexistinglinesmay15occuratnightwhenelectricaldemandislow.OnlytheGettySubstationanditssinglecustomer16wouldexperienceashort‐durationserviceoutageasnewlinesareenergized.17182.3.2.8 Helicopter Use 1920Helicopterswouldbeusedtosupportconstructionactivitiesinareaswhereaccessislimited(e.g.,21nosuitableaccessroad,limitedconstructionareatofacilitateon‐sitestructureassembly,and/or22environmentalconstraintstoaccessingprojectcomponentswithstandardconstructionvehicles23andequipment)orwheresystemoutageconstraintsareafactor.Project‐relatedhelicopter24activitiescouldincludetransportationofconstructionworkers,deliveryofequipmentand25materialstostructuresites,structureplacement,hardwareinstallation,conductorand26telecommunicationscablestringingoperations,andinstallationofmarkerballs.Helicoptersmaybe27usedinotherareastofacilitateconstruction,dependingonrecommendationsmadebythe28installationcontractor.2930Helicopteroperationswouldoccurinareasnecessarytosupporttheconstructionandoperationof31theproposedproject.Helicoptersandtheirassociatedsupportvehiclesandequipmentmaybe32basedatalocalairportatnightoronoffdays.Associatedground‐basedsupportvehicleswould33utilizeexisting,rehabilitated,ornewaccessorspurroads.3435SCEhasidentified15preliminaryhelicopterlandinglocations.Thelocationsareonacombination36ofpreviouslydisturbedexistingaccessand/orspurroadsandundisturbedareasadjacenttothe37roads.Theundisturbedareasmayrequirebrushing.Thelandingzoneswouldvaryinsizeandare38estimatedtobeaminimumof2,500squarefeetandpotentiallyuptoapproximately8,500square39feet,dependingonwhetherthesamelocationisusedforotherprojectconstructionactivity.These40landingzoneswouldsupportconstruction,potentialhelicopterrefueling,andemergencylandings;41however,theproposedlandingzonesarepreliminaryandmaybemovedand/ormodifiedduring42finalengineering.43442.3.3 Substations 4546Somebelow‐gradeconstructionforinstallationofsubstationequipment,subtransmission47conductorandtelecommunicationscablewouldoccuratCarpinteria,Casitas,andSantaClara48




substations.Thesefacilitiesmayincludecabletrenches,conduits,equipmentfoundationsand/or1ductbanks.23Above‐gradeinstallationofsubstationfacilities,suchasdisconnectswitches,potential4transformers,andcircuitbreakers,wouldbecompletedattheCarpinteriaSubstation,Casitas5Substation,andSantaClaraSubstation.AttheCarpinteriaSubstation,a66‐kVbustiepositionwould6alsobeinstalled.Thesefacilitieswouldlikelybeinstalledonnewstructures.782.3.4 Telecommunications 9 102.3.4.1 Equipment Installation 1112Newterminalequipment,channelmultiplexerequipment,andothertelecommunicationequipment13deviceswouldbeinstalledonequipmentrackslocatedwithintheCasitasSubstationMEER,14CarpinteriaSubstationMEER,GoletaSubstationcommunicationsroom,OrtegaSubstationMEER,15SantaBarbaraSubstationMEER,SantaClaraSubstationcommunicationsroom,andVentura16SubstationMEER.Thenewtelecommunicationequipmentinstallationandtheattachmentofthe17proposednewtelecommunicationcablewouldallowtheconfigurationofnewopticalcable18lightwavesystemsconnectingtheabovelocations.Telecommunicationcircuitsforlineprotection,19SCADA,communication,control,andmonitoringwouldbeconfiguredandwiredtotheappropriate20transmission/substationrelaysorequipment.21222.3.4.2 Cable Installation 2324TelecommunicationscablewouldbeinstalledatornearthetopofoverheadstructuresinSegments251,2,and4.Pullingandsplicinglocationswouldbethesameasthoseusedforinstallationof26subtransmissionconductor.Telecommunicationcablespliceswouldbemadewithin36‐by36‐by2710‐inchmetalenclosuresthatwouldbeattachedtosubtransmissionstructureswithmetalstraps.28AlongSegments1,2,and4,spliceboxeswouldbeinstalledonsubtransmissionstructuresat29locationsnomorethan2miles20,000feetapart.3031AttheSantaClaraSubstation,CasitasSubstation,andCarpinteriaSubstation,the32telecommunicationscablewouldtransitionfromanoverheadconfigurationtoanunderground33configurationthroughrisersinstalledonTSPsandbyusingmetalbandingtoattachthecabletothe34legsofanLST.RiserswouldbeinstalledonaTSPattheCarpinteriaSubstationandonthe35easternmostTSPinSegment1adjacenttotheSantaClaraSubstation.3637NewundergroundfacilitieswouldbeinstalledattheCasitasSubstation,CarpinteriaSubstation,and38SantaClaraSubstation.Conduitwouldbeinstalledintrenchesapproximately11incheswideand3639inchesdeep.Newundergroundconduitandstructureswouldtypicallybeinstalledwithabackhoe.40PVCconduitwouldbeplacedinthetrenchandcoveredwithaminimumofapproximately3inches41ofconcreteslurry,thenbackfilledandcompacted.4243Thetelecommunicationscablewouldbeinstalledinaninnerductthatprotectsandidentifiesthe44cablewithintheundergroundconduitandstructures.Toinstalltheinnerduct,itwouldfirstbe45pulledintheconduitfromstructuretostructureusingapullropeandpullingmachineortruck‐46mountedhydrauliccapstan.Thenthetelecommunicationscablewouldbepulledinsidethe47innerductusingthesameprocedure.4849




2.3.5 Removal/Replacement/Relocation of Irrigation Infrastructure of Additional Structures 1 2Portionsoftheproposedprojectwouldbeconstructedonirrigatedagriculturallands.These3propertiescontainirrigationinfrastructure,includingpumps,sprinklers,supplylines,andother4equipment,thatwouldneedtoberemoved,relocated,and/orreplacedtofacilitateconstructionof5theproposedproject.Priortoconstruction,theapplicantwouldconsultwithpropertyownersto6locateirrigationinfrastructureanddetermineappropriateprotectionmeasures.Actionscould7includethemarkingofagriculturalinfrastructure,installationofsteelorwoodplatingonaccess8roadstodistributetheweightofconstructionvehiclesandprotectshallow‐buriedirrigationpiping,9ortheinstallationoftemporaryprotectionstructures(bollards,jerseywalls)adjacentto10infrastructurealongaccessroads.Whereinfrastructurecannotbeprotectedinplace,theapplicant11wouldtemporarilyrelocateinfrastructuretopreventdamageandwouldthenre‐sitethe12infrastructurefollowingcompletionofconstruction.Infrastructuredamagedduringconstructionor13relocationwouldberepairedorreplacedasclosetopreconstructionconditionsasfeasibleortothe14conditionsagreeduponbetweenthelandownerandtheapplicantfollowingthecompletionof15constructionoftheproposedproject.16172.3.6 Post Construction Activities 1819Followingthecompletionofconstructionfortheproposedproject,theapplicantwouldcleanupall20temporarilydisturbedareas(whichmayincludethematerialstagingareas,constructionsetup21areas,pullandtensionsites,andsplicingsites)asclosetopre‐constructionconditionsasfeasible,22ortotheconditionsagreeduponbetweenthelandownerandtheapplicant.23242.3.7 Land Disturbance and Acquisition 2526Constructionoftheproposedprojectwouldresultinthedisturbanceofapproximately313.5acres27oflandattheproposedprojectcomponents.Theapplicantestimatesthatapproximately112acres28wouldbedisturbedpermanently.Theapproximatelanddisturbancefromimplementationofthe29proposedprojectissummarizedinTable2‐7.Theapplicantwouldacquiretemporaryconstruction30easementswherenecessary,particularlyforpullingsitesandstagingareas/laydown/workyards.3132ExceptfortwoportionsalongSegment3B(totaling6,300feet)thatwouldoccurinnewROW,the33proposedprojectinfrastructurewouldbebuiltwithinexistingfee‐ownedoreasementROWalready34operatedandmaintainedbytheapplicant.Inaddition,aminorshifttothenortheast,primarily35affectingtheoverhangofthenewconductorsofthe66kVsubtransmissionlinealignment,maybe36requiredforanapproximate3,700‐footportionofSegment3Binordertoaddressageotechnical37concern.Similarly,existingandproposedaccessroadsandspurroadsproposedbytheapplicant38wouldbelocatedprimarilywithinexistingROWsorcoveredundereasements.Thewidthofthese39ROWsvariesoverthelengthoftheproposedprojectfrom24to165feet.Exceptfornewlandrights40necessarytoaccommodatethisshortrealignmentwithinSegment3B,theapplicantdoesnot41anticipateacquisitionofadditionalorupgradedrightsonprivatelands.424344

45




1Table 2‐7 Approximate 7 Approximate Land Disturbance from Implementation of the

Proposed Project

Component Sites/Miles

Temporary Disturbance

(acres)

Permanent Disturbance

(acres) Total Disturbance

(acres) MaterialStagingYards1 4sites 15.0 0 15.0

NewAccess/SpurRoads 4miles 0 12.0 12.0MinorRehabilitationofExistingAccess/SpurRoads

25miles 0 76.0 76.0

ExtensiveRehabilitationofExistingAccess/SpurRoads

5miles 31.0 15.0 46.0

LWSPole 5sites 1.5 0.5 2.0GuyPole 10sites 2.5 0.5 3.0LWSH‐Frame 4sites 1.0 0.5 1.5TSP 86sites 52.0 7.0 59.0J‐Towers 4sites 1.5 0.52 2.03

PullandTensioningSite 13sites 15.0 0 15.0Tower/H‐FrameRemovalSites 127sites 65.5 0 65.5LSTFootingOnlyRemovalSites 30sites 4.0 0 4.0WoodPoleRemovalSites4 29sites 7.0 0 7.0GuardStructures 60sites 5.0 0 5.0Telecommunication 32.8miles 0.5 0 0.5

TotalAcreageDisturbance 201.5 112 313.5Source:SCEdocumentationsubmitted2012‐2014;Source:SCE2012Notes:1Doesnotincludeexistingasphaltedorgravelstagingareas.2Basedonassumptionthatthetower’sfourfootingsatspaced30feetapart.3Basedondisturbancedataprovidedinthe2013DescriptionofRefinedActivitiesDocument.4BasedontheassumptionthattemporarydisturbancewouldbethesameasinstallationofaLWSpole.Key:kVkilovolt LSTlatticesteeltowerLWSlightweightsteel ROWright‐of‐wayTSPTubularsteelpole 2

Los Padres National Forest Land 3

AsmentionedinSection2.2.1,approximately5.1milesoftheproposedSegment4wouldbelocated4withintheLosPadresNationalForestboundary,undertheU.S.DepartmentofAgriculture’sU.S.5ForestService(USFS)jurisdiction.Theapplicanthasoperatedandmaintainedexistingstructures6alongSegment4forover50years,consistentwithaSpecialUsePermit(SUP)grantedbytheUSFS7forthepurposeoflocating,surveying,constructing,operating,andmaintainingpowertransmission8infrastructure.ThisSUPwasvaliduntil2012,andtheapplicanthasalreadyfiledalong‐term9renewalapplication,waitingforformalUSFSaction.Intheinterim,boththeapplicantandtheUSFS10havecontinuedtoperformactionspursuanttotheSUP,includingfilingtwoadditionalpermit11amendments:apermitforthereplacementandroadmaintenanceofthreetowerswithintheLos12PadresNationalForest;andanapplicationtoauthorizetheinstallationofafiberoptic13telecommunicationline.Theapplicant’sSUPdocumentrecordsareprovidedinAppendixA.14PursuanttoForestServicedirectives(FSH2709.11),theapplicantwouldupgradeexistingrightson15publiclandswherenecessarypriorconductingproposedworkalongSegment4.TheLosPadres16




NationalForestisconductingaseparatereviewofvariousSCEtransmissionlinesaspartofa1broaderNEPAeffort,includingworkthatisnotrelatedtotheproposedproject.23TheapplicantsubmittedanSF299andBiologicalAssessment/BiologicalEvaluationtotheU.S.4DepartmentofAgriculture(USDA)May7,2014.TheUSDArequestedadditionalinformationfrom5theapplicantonNovember16,2014,andtheapplicantisintheprocessofpreparingaresponseto6thatrequest.78Bureau of Reclamation Land 9

AlthoughseveralstructuresalongSegment2arelocatedonBureauofReclamation(BOR)Land,the10applicant’seasementincludestherighttomakemodificationstoexistingtransmissionlinesand11supportinginfrastructure.Onlyminormodifications,suchastheremovaloftowerfoundationsand12theadditionoffiberopticcable,areproposedalongSegment2.1314The“Y”Yard(Yard2)islocatedonBORlandoutsideoftheapplicant’sexistingeasement.The15applicantisintheprocessofinitiatingtheBOR’sreviewprocessfortheuseofthisarea.16172.4 Construction Equipment, Workforce, Schedule, and Plans 18192.4.1 Construction Equipment and Workforce 2021Theestimatedduration,workforce,anddailyoutcomeforeachconstructionactivityissummarized22inTable2‐8,below.Alistofconstructionequipmentandvehiclesandtheirestimateddurationof23useduringconstructionisprovidedinAppendixC,AirCalculations.Constructionwouldbe24performedbyeithertheapplicant’sconstructioncrewsoritscontractors.Iftheapplicant’s25constructioncrewsareused,theywouldbebasedatSCE’sVenturaServiceCenteroroneormore26stagingyardssetupfortheproposedproject.Ingeneral,constructionwouldoccurinaccordance27withacceptedconstructionindustrystandards.Theapplicantwouldcomplywithapplicablelocal28ordinancesforconstructionactivitiesorwouldrequestavariancefromtheapplicablejurisdiction.2930Contractorconstructionpersonnelwouldbemanagedbytheapplicant’sconstructionmanagement31personnelandwouldbebasedinthecontractor’sexistingyardoroneormorestagingareas32establishedaspartoftheproposedproject.3334Theapplicantanticipatesatotalofapproximately105constructionpersonnelworkingonanygiven35day.Crewswouldworkconcurrentlywheneverpossible;however,theestimateddeploymentand36numberofcrewmemberswouldvarydependingonfactorssuchasmaterialavailability,resource37availability,weatherfactors,andconstructionscheduling.38392.4.2 Construction Schedule 4041Theapplicantanticipatesthatconstructionoftheproposedprojectwouldtakeapproximately2442months.Table2‐8presentsthedurationoftheproposedactivities,workforceneeded,and43estimatedoutcomeperdayfor66‐kVsubtransmissionlineconstructionandtelecommunication44systeminstallation.Constructionwouldcommencefollowingregulatoryapprovals,final45engineering,procurementactivities,andreceiptofallapplicablepermits.Constructionofthe46proposedprojectwouldoccurprimarilyduringdaytimehours.However,itispossiblethatsome47constructioncouldoccuratnight,requiringtemporaryartificialillumination.Lighting,ifneeded,48




wouldbeusedtoprotectthesafetyoftheconstructionworkers;lightswouldbeorientedand1shieldedtominimizetheireffectonanynearbysensitivereceptors.23Table 2‐8 Proposed Subtransmission and Telecom System Construction Schedule

Activity Estimated duration Workforce Estimated daily outcome

Survey 17days 4 1mileStagingareas/Materialstorage 24months 4 N/ATreetrimming 14days 3 40treesROWclearing 20days 5 0.25mileRoadsandlandingwork 49days 5 Brushing/Trimming:2miles

Existingroads:1mileNewroads(moderate):1mileNewroads(mountain):0,5mileStructurepads(flat):4padsStructurepads(mountain):2

padsGuardstructureinstallation 12days 6 5structuresRemovalofexistingconductorandtelecomcable

32days 20 0.5mile

RetainingWalls 150days 30 Approximately0.2retainingwallsperday

LSTremoval 230days 8 0.5LSTsLSTfoundationremoval 88days 4 2foundationsWoodH‐frame/woodpoleremoval

4days 6 9polesor4H‐frames

TSPfoundations 178days 6 0.5TSPsTSPhaul 45days 6 2TSPsTSPassembly 89days 8 1TSPTSPerection 89days 8 1TSPJ‐Towerhaul 4days 6 1J‐TowerJ‐Towerfootinginstallation 11days 8 0.3footingJ‐Towerassemblyanderection 12days 12 0.3J‐TowerWood/LWSpolehaul 4days 4 4polesLWSH‐frame/LWSpoleinstallation

4days 8 4polesor2H‐frames

Conductorinstallation 44days 20 0.5mileTelecommunicationscableandFRCinstallation

21days 20 2miles

Guardstructureremoval 9days 6 7structuresDuctbankinstallation 3days 6 250feetUndergroundcableinstallation 1day 8 0.33mileRestoration 17days 7 1mileTelecomsysteminstallationatCarpinteriaSubstation

30days 3 N/A

TelecomsysteminstallationatCasitasSubstation

20days 3 N/A

Telecomsysteminstallationat 5days 3 N/A




Table 2‐8 Proposed Subtransmission and Telecom System Construction Schedule

Activity Estimated duration Workforce Estimated daily outcome

GoletaSubstationTelecomsysteminstallationatOrtegaSubstation

5days 3 N/A

TelecomsysteminstallationatSantaBarbaraSubstation

5days 3 N/A

TelecomsysteminstallationatSantaClaraSubstation

30days 3 N/A

TelecomsysteminstallationatVenturaSubstation

30days 3 N/A

Source:SCEdocumentationsubmitted2012‐2014Source:SCE2012Key:FRC FaultreturnconductorLST LatticesteeltowerLWS LightweightsteelN/A NotapplicableROW Right‐of‐wayTSP Tubularsteelpole12.4.3 Hazardous Materials 23Constructionoftheproposedprojectwouldrequirethelimiteduseofhazardousmaterials,suchas4fuels,lubricants,andcleaningsolvents.Allhazardousmaterialswouldbestored,handled,andused5inaccordancewithapplicableregulations.MaterialSafetyDataSheetswouldbemadeavailableat6theconstructionsiteforallcrewworkers.78TheapplicantwouldupdatecurrentSpillPreventionControlandCountermeasurePlans(SPCC)9Plansfortheexistingfacilitiesbeforeanynewoil‐containingequipmentwouldbebroughttothe10substationlocations.TheSPCCPlansforthesubstationswouldbeupdatedtodescribehow11hazardousmaterialsreleasedfromelectricalequipmentwouldbedivertedanddirectedtoward12containmentstructuresandhowcontainerizedhazardousmaterialswouldbestoredwithina13temporarycontainmentareawithsufficientcontainmentcapacity.14152.4.4 Waste Disposal 1617Constructionoftheproposedprojectwouldresultinthegenerationofvariouswastematerials,18includingwood,metal,soil,vegetation,andsanitationwaste(portabletoilets).Sanitationwaste(i.e.,19human‐generatedwaste)wouldbedisposedofinaccordancewithsanitationwastemanagement20practices.Materialfromexistinginfrastructurethatwouldberemovedaspartoftheproposed21project,suchasconductor,steel,concrete,anddebris,wouldbetemporarilystoredasthematerial22awaitssalvage,recycling,ordisposal.2324Theexistingwoodpolesremovedaspartoftheproposedprojectwouldbereturnedtoastaging25yardandthenreusedbytheapplicant,returnedtothemanufacturer,disposedofinaClassI26hazardouswastelandfill,ordisposedofinthelinedportionofanRWQCB‐certifiedmunicipal27landfill.2829




Materialexcavatedduringconstructionoftheproposedprojectcouldeitherbeusedasfill,made1availableforusebythelandowner,orcouldbedisposedofoffsite.Ifcontaminatedmaterialis2encounteredduringexcavation,theapplicantwouldstopatthatlocation,andtheapplicant’sSpill3ResponseCoordinatorwouldbecalledtothesitetomakeanassessmentandnotifytheproper4authorities.56Theestimatedquantityofsolidwastethatwouldbegeneratedfortheproposedprojecttobe7depositedatapprovedlandfillswouldbeapproximately7,213tons.Followingarethetypesand8amountsofwastesources:910

Subtransmissionoverheadconstruction:approximately179tons,whichincludeswood11poles5andmiscellaneoushardware.12

Civilwork(exportedsoilsmaximum6):approximately7,032tons,whichincludesaccess13roadsrehabilitation,newspurroads,TSPworkareas,retainingwallstructures,drainage14structuresetc.15

Substationconstruction:approximately1.5tons,whichincludeshardwareandequipment.16

Telecomconstruction:approximately0.25ton,whichincludeswastegeneratedfrom17splicinganddirectburiedconduit.18

192.4.5 Storm Water Pollution Control 2021Constructionoftheproposedprojectwoulddisturbasurfaceareagreaterthan1acre.Therefore,22theapplicantwillberequiredtoobtaincoverageundertheGeneralPermitforStormWater23DischargesAssociatedwithConstructionandLandDisturbanceActivities,Order2009‐0009‐DWQ24asamendedbyOrder2010‐0014‐DWQfromtheStateWaterResourcesControlBoard.Commonly25usedBMPsarestormwaterrunoffqualitycontrolmeasures(boundaryprotection),dewatering26procedures,andconcretewastemanagement.TheSWPPPwouldbebasedonfinalengineering27designandwouldincludeallproposedprojectconstructioncomponents.28292.4.6 Dust Control 3031Duringconstruction,migrationoffugitivedustfromconstructionsiteswouldbelimitedbycontrol32measuressetforthbyVenturaCountyAirPollutionControlDistrictRule55andSantaBarbara33CountyAirPollutionControlDistrictRule345,asfurtherdiscussedinSection4.3,“AirQuality.”SCE34woulduseupto393acre‐feetofwaterduringconstruction,primarilyfordustcontrol.35362.4.7 Traffic Control 3738ConstructionactivitieswithinpublicstreetROWswouldrequiretheuseofatrafficcontrolservice,39andalllaneclosureswouldbeconductedinaccordancewithlocalordinancesandcity/county40permitconditions.Thesetrafficcontrolmeasureswouldbeconsistentwiththosepublishedinthe41CaliforniaJointUtilityTrafficControlManual(CaliforniaInter‐UtilityCoordinatingCommittee422010),asdiscussedinSection4.15,“TransportationandTraffic.”435 Itisexpectedthemajorityoftheremovedwoodpoleswouldbetakentoanapprovedlandfill,butsomepolesmaystillbestructurallysuitableforre‐use.Removedtowersteel,emptywirereels,concretefootings,pallets,etc.wouldberecycledorre‐used.

6 Notethatsomeoftheexcesssoilsmaybeusedonexistingdirtaccessroads.




12.5 Operation and Maintenance 232.5.1 Ongoing Activities 45Ongoingoperationandmaintenanceactivitiesarenecessarytoensurereliableservice,aswellas6thesafetyofutilityworkersandthegeneralpublic.78Allsubstationsassociatedwiththeproposedprojectare,andwouldcontinuetofunctionas,9remotelycontrolledsubstations.Theapplicant’sGridControlCenter,AlternateGridControlCenter,10andallSwitchingCentersareequippedwithEnergyManagementSystemworkstationsallowing11themtomonitorandrespondtoalarmsasthesystemstatuschanges.Allworkstationusershave12theabilitytoperformsupervisorycontrolofremotestationequipmentwithintheirjurisdictional13areas.Inaddition,allremotesubstationswithsupervisorycontrolareequippedwitha14ProgrammableLogicControllerintegratedwithSubstationAutomationSystem(SAS).Allautomatic15functionsanddataacquisitionareperformedbytheSAS.Whenastationissupervisorycontrolled,16controllablepointscanbeinitiatedfromtheswitchingcenterwithoperationaljurisdiction.1718SubstationOperatorsperformstationinspectionsinunstaffedsubstationswhenthereisany19indicationoftrouble.Routinecircuitbreakeranddisconnectswitchingoperationsatremotely20controlledstationswouldnormallybeperformedbyremotecontrolonordersbytheresponsible21switchingcenter.TheSystemOperatorsareresponsibleformaintainingthecorrectstatusofall22linesandequipmentundertheirjurisdiction.2324ThesubtransmissionlineswouldbemaintainedinamannerconsistentwithCPUCGO95andGO25128.Normaloperationofthelineswouldbecontrolledremotelythroughtheapplicant’scontrol26systems,andmanuallyinthefieldasrequired.Theapplicantinspectsthesubtransmission27overheadfacilitiesinamannerconsistentwithCPUCGO165aminimumofonceperyearvia28groundand/oraerialobservation,butusuallymorefrequentlybasedonsystemreliability.2930Inmostcases,theapplicantwouldmaintainandrepairsubtransmissionandsubstationfacilities31withinpreviouslydisturbedareassurroundingoradjacenttoaspecificstructure,including32structurelocation(s),stringingsites,laydownareas,and/oraccessroads.Theapplicantwould33repairorreplacefacilitiesduetoexternalfactorssuchasfires,earthmovement(duetoslidesor34earthquakes),vehiclescontactingstructures,etc.andforongoingmaintenanceofinfrastructureas35itages.Maintenancewouldoccurasneededandcouldincludeactivitiessuchasrepairing36conductors,washingorreplacinginsulators,repairingorreplacingotherhardwarecomponents,37replacingpolesandtowers,treetrimming,brushandweedcontrol,andaccessroadmaintenance.38Mostregularoperationsandmaintenanceactivitiesforoverheadfacilitiesareperformedfrom39existingaccessroadswithnosurfacedisturbance.Potentialworktobedoneatexistingfacilities,40suchasrepairingorreplacingexistingpolesandtowers,couldoccurinundisturbedareas.4142Existingconductorscouldrequirere‐stringingtorepairdamagedequipment.Somepullingsites43couldbelocatedinpreviouslyundisturbedareas,andattimes,conductorscouldbepassedthrough44existingvegetationenroutetotheirdestination.4546Routineaccessandspurroadmaintenancewouldbeconductedonanannualbasisasneeded.47Accessandspurroadmaintenanceincludesmaintainingavegetation‐freecorridor(tofacilitate48accessandpreventfires)andbladingtosmoothoverwashouts,erodedareas,andwashboard49




surfacesasneeded.Accessandspurroadmaintenancecouldincludebrushing(i.e.,trimmingor1removalofshrubs)approximately2to5feetbeyondtheedgeoftheroadorroadsidebermwhen2necessarytokeepvegetationfromintrudingintotheroadway.Accessandspurroadmaintenance3wouldalsoincludecleaningditches,movingandestablishingberms,clearingandmakingfunctional4draininletstoculverts,culvertrepair,clearingandestablishingwaterbars,andcleaningand5repairingover‐sidedrains.Accessandspurroadmaintenanceincludestherepair,replacement,and6installationofstormwaterdiversiondevicesasneeded.78Insulatorscouldrequireperiodicwashingwithwatertopreventthebuildupofcontaminants(e.g.,9dust,salts,droppings,smog,andcondensation)andreducethepossibilityofelectricalarcing,which10canresultincircuitoutagesandpotentialfire.Frequencyofinsulatorwashingisregion‐specificand11basedonlocalconditionsandbuild‐upofcontaminants.Insulators,hardware,andother12componentsarereplacedasneededtomaintaincircuitreliability.1314Woodpoletestingandtreatingisanecessarymaintenanceactivityconductedtoevaluatethe15conditionofwoodstructuresbothaboveandbelowgroundlevel.Intrusiveinspectionsrequirethe16temporaryremovalofsoilaroundthebaseofthepole,usuallytoadepthofapproximately12to1817inches,tocheckforsignsofdeterioration.Publicroadsandexistingaccessandspurroadswouldbe18employedtoaccessthepoles.Allsoilremovedduringintrusiveinspectionswouldbereplacedand19compactedatthecompletionofthetesting.2021Regulartreepruningwouldbeperformedincompliancewithexistingstateandfederallaws,rules,22andregulationsandiscrucialformaintainingreliableservice,especiallyduringsevereweatheror23disasters.TreepruningstandardsfordistancesfromoverheadlineshavebeensetbytheCPUC(GO2495,Rule35),PublicResourcesCodeSection4293,CaliforniaCodeofRegulationsTitle14,Article4,25andothergovernmentandregulatoryagencies.2627Theapplicant’sstandardapproachtotreepruningistoremoveatleasttheminimumrequiredby28lawplusoneyear’sgrowth(speciesdependent).Inadditiontomaintainingvegetation‐freeaccess29andspurroadsandclearancesaroundelectricallines,clearanceofbrushandweedsaroundpoles,30andasrequiredbylocaljurisdictionsonfee‐ownedROWs,isnecessaryforfireprotection.Section314292oftheCaliforniaPublicResourcesCodedirectstheowner,controller,operator,ormaintainer32ofelectricaltransmissionlinesinmountainousland,forest‐coveredland,brush‐coveredland,or33grass‐coveredland,tomaintainaroundandadjacenttoanypoleortowerthatsupportsaswitch,34fuse,transformer,lightningarrester,linejunction,ordeadendorcornerpole,afirebreakthat35consistsofaclearingofnotlessthan10feetineachdirectionfromtheoutercircumferenceofsuch36poleortower,andtomaintainaclearanceof4feetfromanylineoperatingat2,400ormorevolts,37butlessthan72,000volts.3839GO95,Rule35mandatesthatcertainvegetationmanagementactivitiesbeperformedtoestablish40necessaryandreasonableclearances,andestablishesminimumclearancesbetweenlineconductors41andvegetationthatundernormalconditionsshallbemaintained.Theserequirementsapplytoall42overheadelectricalsupplyandcommunicationfacilitiesthatarecoveredbythisGO,including43facilitiesonlandsownedandmaintainedbyCaliforniaStateandlocalagencies.4445Operationsandmaintenancerelatedhelicopteractivitiescouldincludetransportationofworkers,46deliveryofequipmentandmaterialstostructuresites,structureplacement,hardwareinstallation,47andconductorortelecommunicationscablestringingoperations.Helicopterlandingareascouldbe48




locatedwhereaccessbyroadisinfeasible.Inaddition,helicoptersmustbeabletolandwithinthe1applicant’sROWs,whichcouldincludelandingonaccessorspurroads.23Inadditiontoregularoperationsandmaintenanceactivities,theapplicantconductsawidevariety4ofemergencyrepairsinresponsetoemergencysituations,including,butnotlimitedto,damage5resultingfromhighwinds,storms,fires,othernaturaldisasters,andaccidents.Suchrepairscould6includereplacementofdownedpolesorlinesorre‐stringingconductors.Emergencyrepairscould7beneededatanytime.89Thetelecommunicationequipmentwouldbesubjecttomaintenanceandrepairactivitiesonanas‐10neededoremergencybasis.Activitiescouldincludereplacingdefectivecircuitboards,damaged11radioantennas,orfeedlinesandtestingtheequipment.Telecommunicationequipmentwouldalso12besubjecttoroutineinspectionandpreventativemaintenancesuchasfilterchange‐outsor13softwareandhardwareupgrades.1415Mostregularoperationsandmaintenanceactivitiesoftelecommunicationequipmentwouldbe16performedatsubstationsandwouldbeaccessedfromexistingaccessroadswithnosurface17disturbance.Accessroadmaintenancewouldbeperformedasdiscussedabove.1819Telecommunicationcablemaintenanceactivitieswouldincludepatrolling,testing,repairing,and20replacingdamagedcableandhardware.Mostregularmaintenanceactivitiesofoverheadfacilities21wouldbeperformedfromexistingaccessandspurroadswithnosurfacedisturbance,although22someactivitiescouldoccurinundisturbedareas.2324Repairsmadetoexistingfacilities,suchasrepairingorreplacingexistingcablesandrestringing25cables,couldoccurinundisturbedareas.Accessandhabitatrestorationmayberequiredforroutine26oremergencymaintenanceactivities.27282.5.2 Electric and Magnetic Fields 2930Electricandmagneticfields(EMFs)occurbothnaturallyandasaresultofhumanactivityacrossa31broadelectricalspectrum.Naturallyoccurringelectricandmagneticfieldsarecausedbythe32weatherandtheearth’sgeomagneticfield.Thefieldscausedbyhumanactivityresultfrom33technologicalapplicationoftheelectromagneticspectrumforusessuchascommunications,34appliances,andthegeneration,transmission,andlocaldistributionofelectricity.3536In1993,theCPUCimplementeddecisionD.9311‐013,whichrequiresutilitiestouse“low‐costor37no‐cost”EMFreductionmeasuresforEMFsassociatedwithelectricalfacilitiesthatrequire38certificationunderCPUCGO131‐D.Thedecisiondirectedutilitiestousea4percentbenchmarkfor39low‐costfieldreductionmeasures.ThisdecisionalsoimplementedanumberofEMFmeasurement,40research,andeducationprograms.TheCPUCdidnotadoptanyspecificnumericallimitsor41regulationofEMFlevelsrelatedtoelectricpowerfacilities.TheCPUC’sJanuary27,2006,decision42(D.06‐01‐042)affirmedthe1993decisiononthelow‐cost/no‐costpolicytomitigateEMFexposure43fornewutilitytransmissionandsubstationprojects.ForfurtherinformationaboutEMFsandCPUC44guidelines,referto:http://www.cpuc.ca.gov/PUC/energy/Environment/ElectroMagnetic+Fields.45 46

47




SCEwouldincorporatethefollowinglow‐cost/no‐costmeasuresintothedesignoftheproposed1project:23

UtilizingsubtransmissionstructureheightsthatmeetorexceedSCE’spreferredEMFdesign4criteria. 5

Utilizingdouble‐circuitconstructionthatreducesspacingbetweencircuitsascompared6withsingle‐circuitconstructions.7

Arrangingconductorsofproposedsubtransmissionlineformagneticfieldreduction.8

Placingnewsubstationelectricalequipmentawayfromthesubstationpropertylinesclosest9topopulatedareas. 10

11Afterseveraldecadesofstudy,thereisstillalackofagreementinthescientificcommunity12regardingthepotentialhealthimpactsofhumanexposuretoEMFfromelectricpowerfacilities.13Additionally,therearenofederalorstatestandardslimitingpublicexposuretoEMFemittedby14electricalpowerlinesorsubstationfacilitiesintheState.Forthesereasons,EMFisnotevaluatedin15thisenvironmentalimpactreport(EIR)asanissuetobeaddressedundertheCalifornia16EnvironmentalQualityAct(CEQA),andnorelatedimpactsignificanceispresentedinthissection.17EMFinformationprovidedinthisEIRisintendedtoprovidethepublicwithabetterunderstanding18ofthetopic.19202.6 Applicant Proposed Measures 2122Toavoidandmitigatepotentialsignificantimpactstoenvironmentalresources,theapplicanthas23committedtoimplementingtheapplicantproposedmeasures(APMs)listedbelowinTable2‐9.2425Table 2‐9 Applicant Proposed Measures APMAQ‐1 ThefollowingcontrolmeasuresstatedintheVCAPCDVenturaCountyAirQuality

AssessmentGuidelinestominimizethegenerationoffugitivedust(PM10andPM2.5)wouldbeimplementedduringconstructionoftheproposedprojectasfeasible:1. Theareadisturbedbyclearing,grading,earthmoving,orexcavationoperations

shallbeminimizedtopreventexcessiveamountsofdust.

2. Pre‐grading/excavationactivitiesshallincludewateringtheareatobegradedorexcavatedbeforecommencementofgradingorexcavationoperations.Applicationofwater(preferablyreclaimed,ifavailable)shouldpenetratesufficientlytominimizefugitivedustduringgradingactivities.

3. Fugitivedustproducedduringgrading,excavation,andconstructionactivitiesshallbecontrolledbythefollowingactivities:

a) Alltrucksshallberequiredtocovertheirloads,asrequiredbyCaliforniaVehicleCode§23114.

b) Allgradedandexcavatedmaterial,exposedsoilareas,andactiveportionsoftheconstructionsite,includingunpavedon‐siteroadways,shallbetreatedtopreventfugitivedust.Treatmentshallinclude,butnotnecessarilybelimitedto,periodicwatering,applicationofenvironmentallysafesoilstabilizationmaterials,and/orroll‐compactionasappropriate.Wateringshallbedoneasoftenasnecessaryandreclaimedwatershallbeusedwheneverpossible.

4. Gradedand/orexcavatedinactiveareasoftheconstructionsiteshallbemonitored




Table 2‐9 Applicant Proposed Measures by(indicatebywhom)atleastweeklyforduststabilization.Soilstabilizationmethods,suchaswaterandroll‐compaction,andenvironmentallysafedustcontrolmaterials,shallbeperiodicallyappliedtoportionsoftheconstructionsitethatareinactiveforoverfourdays.Ifnofurthergradingorexcavationoperationsareplannedforthearea,theareashouldbeseededandwatereduntilgrassgrowthisevident,orperiodicallytreatedwithenvironmentallysafedustsuppressants,topreventexcessivefugitivedust.

5. Signsshallbepostedonsitelimitingtrafficto15milesperhourorless.

6. Duringperiodsofhighwinds(i.e.,windspeedsufficienttocausefugitivedusttoimpactadjacentproperties),allclearing,grading,earthmoving,andexcavationoperationsshallbecurtailedtothedegreenecessarytopreventfugitivedustcreatedbyon‐siteactivitiesandoperationsfrombeinganuisanceorhazard,eitheroff‐siteoron‐site.Thesitesuperintendent/supervisorshallusehis/herdiscretioninconjunctionwiththeAPCDindeterminingwhenwindsareexcessive.

7. Adjacentstreetsandroadsshallbesweptatleastonceperday,preferablyattheendoftheday,ifvisiblesoilmaterialiscarriedovertoadjacentstreetsandroads.

8. Personnelinvolvedingradingoperations,includingcontractorsandsubcontractors,shouldbeadvisedtowearrespiratoryprotectioninaccordancewithCaliforniaDivisionofOccupationalSafetyandHealthregulations.

APMAQ‐2 ThefollowingcontrolmeasuresstatedintheVCAPCDVenturaCountyAirQualityAssessmentGuidelineswouldbeimplementedduringconstructionoftheProjectasfeasible:1. Minimizeequipmentidlingtime.

2. Maintainequipmentenginesingoodconditionandinpropertuneaspermanufacturers’specifications.

3. Lengthentheconstructionperiodduringsmogseason(MaythroughOctober),tominimizethenumberofvehiclesandequipmentoperatingatthesametime.

4. Usealternativelyfueledconstructionequipment,suchascompressednaturalgas,liquefiednaturalgas,orelectric,iffeasible.

APMBIO‐1 Pre‐constructionbiologicalsurveysforspecial‐statusplantsandwildlifewouldbeconducted0to30daysbeforethestartofconstructionbyaqualifiedbiologistinalllaydown/workareas.Ifaspecial‐statusspeciesisencountered,biologistswouldrecordthelocation,takeaphotograph,anddelineateabufferarea,asappropriate,whereactivitiesshouldberestrictedfortheprotectionoftheresource.Ifimpactstothespecial‐statusplant(s)orwildlifecannotbeavoided,SCEwouldconsultwiththeappropriateresourceagencyoragencies.

APMBIO‐2 Totheextentfeasible,SCEwouldminimizeimpactsandpermanentlosstonativevegetationtypes,vegetationthatmaysupportspecial‐statusspecies,andknownpopulationsofspecial‐statusplantsatconstructionsitesbyavoidingconstructionactivitiesinareasflaggedtobeavoided.Ifitisnotpossibletoavoidimpactstonativevegetation,aprojectrevegetationplanmaybepreparedinconsultationwiththeappropriateagenciesforareasofnativehabitattemporarilyimpactedduringconstruction.

APMBIO‐3 Biologicalmonitorswouldmonitorconstructionactivitiesinwildlifehabitatareasthatmaycontainspecial‐statusspecies,criticalhabitatforthosespecies,oruniqueresourcestoensuresuchspecies,habitat,orresourcesareavoided.

APMBIO‐4 SCEwouldconductproject‐widenestingbirdsurveys.SCEwould,iffeasible,removetrees,vegetation,subtransmissionstructures,andpolesoutsideofthenestingseason.If




Table 2‐9 Applicant Proposed Measures atree,subtransmissionstructure,orpolecontainingaraptornestmustberemovedduringnestingseason,SCEbiologistswouldconsultwiththeappropriateresourceagencies.Ifworkisscheduledtotakeplaceincloseproximitytoanactivenest,appropriatenestingbuffersorothermeasureswouldbeestablishedbasedonconsultationwiththeappropriateresourceagenciesoranadaptivemanagementplantoaddressnestingbirds,whichwouldbesubjecttotheapprovaloftheCDFW.ThisProject‐specificNestingBirdManagementPlanwouldallowforimplementationofspecies‐specificbuffermodificationguidelinesprovidedbyaqualifiedutilityavianbiologist;nestbufferswouldbedeterminedbyspeciessensitivitytodisturbance,thenatureoftheconstructionactivity,andtheenvironmentalconditionssurroundingthenest.

APMBIO‐5 Duringthepre‐constructionsurveys,aqualifiedbiologistwouldidentifyanypotentialSanDiegodesertwoodratmiddenswithin50feetofproject‐relatedactivities.Atthediscretionofaqualifiedbiologist,anexclusionbufferwouldbeestablishedaroundanywoodratmiddensthatcanbeavoided,andtheseexclusionzoneswouldbeflaggedorfencedtoprotectthenestduringthebreedingseason(OctoberthroughJune).Ifawoodratmiddencannotbeavoided,anappropriateresourceagencywouldbeconsultedregardingapotentialbufferreduction.

APMBIO‐6 Apre‐construction,focusedburrowingowlprotocolsurveyshallbeconductednomorethan30dayspriortocommencementofground‐disturbingactivitieswithinsuitablehabitattodetermineifanyoccupiedburrowsarepresent.Ifoccupiedburrowsarefound,adequatebuffersshallbeestablishedaroundburrowsbasedonaproject‐specificnestingbirdmanagementplanorconsultationwiththeappropriateagencies.Ifoccupiedburrowscannotbeavoided,anappropriaterelocationstrategywouldbedevelopedinconjunctionwiththeCDFWandmayincludecollapsingburrowsoutsideofnestingseasonandusingexclusionarydevicestoreduceimpactstotheburrowingowl.Biologicalmonitorswouldmonitorallconstructionactivitiesthathavethepotentialtoimpactactiveburrows.

APMBIO‐7 TheNPDESConstructionGeneralPermitwouldrequireSCEtodevelopandimplementaStormWaterPollutionPreventionPlan(SWPPP),whichspecifiesbestmanagementpractices(BMPs)toavoidorminimizeimpactstowaterqualityandriparianhabitatduringconstruction.SeeAppendixBforexampleBMPsprovidedbySCE.

APMGEN‐1 TheapplicantwoulddevelopaWorkerEnvironmentalAwarenessPlan.Theapplicantwouldalsoprepareapresentationusedtotrainallsitepersonnelpriortothecommencementofwork.Arecordofalltrainedpersonnelwouldbekept.InadditiontoinstructiononcompliancewithAPMsandanymitigationmeasuresidentified,allconstructionpersonnelwouldalsoreceivethefollowing: Alistofphonenumbersfortheapplicant’senvironmentalspecialistpersonnel

associatedwiththeproposedproject(archaeologist,biologist,environmentalcompliancecoordinator,andregionalspillresponsecoordinator).

InstructionontheSantaBarbaraCountyAPCDandVenturaCountyAPCDfugitivedustrules.

Instructiononbiologicalresources(includingspecial‐statusspeciesandothersensitivehabitatsandresourcesthatcouldoccurinthevicinityoftheproposedproject);thelocationsofsensitiveresources;thelegalstatusandprotectionaffordedthesespecies;andthemeasurestobeimplementedforavoidanceandminimizationofimpactstotheresources.Penaltiesforviolationsofenvironmentallawswillalsobeincorporatedintothetraining.

Areviewofapplicablelocal,state,andfederalordinances,laws,andregulationspertainingtohistoricpreservation;adiscussionofdisciplinaryandotheractions




Table 2‐9 Applicant Proposed Measures thatcouldbetakenagainstpersonsviolatinghistoricpreservationlawsandtheapplicantpolicies;areviewofarchaeology,history,prehistory,NativeAmericancultures,andpaleontologicalresourcesintheproposedprojectvicinity;andinstructionregardingwhattypicalculturalresourceslooklike.

Instructionregardingtheprocedurestobeimplementedshouldunanticipatedculturalresources(aswellaspaleontologicalresources)beencounteredduringconstructionactivities,includingstoppingworkinthevicinityofthefindandcontactingthearchaeologistorenvironmentalcompliancecoordinator,whowouldprovideguidanceonhowtoproceed.

Instructionregardingtheimportanceofmaintainingacleanconstructionsite,includingensuringthatallfoodscraps,wrappers,foodcontainers,cans,bottles,andothertrashfromtheproposedprojectaredepositedinclosedtrashcontainers.Trashcontainerswouldberemovedfromtheprojectareaasrequiredandwouldnotbepermittedtooverfill.

InstructionregardingtheindividualresponsibilitiesundertheCleanWaterAct,theprojectSWPPP,site‐specificBMPs,andthelocationofMaterialSafetyDataSheetsfortheproposedproject.

Instructionstonotifytheforemanandregionalspillresponsecoordinatorincaseofahazardousmaterialsspillorleakfromequipment,oruponthediscoveryofsoilorgroundwatercontamination.

Acopyofthetruckroutestobeusedformaterialdelivery.

Instructionthatnoncompliancewithanylaws,rules,regulations,ormitigationmeasurescouldresultinbeingbarredfromparticipatinginanyremainingconstructionactivitiesassociatedwiththeproposedproject.

APMCUL‐1 Potentialproject‐relatedeffectsonhistoricalresourcesmaybemitigatedorreducedtoalessthansignificantlevelbyimplementingSCE’sculturalresourcesUnanticipatedDiscoveryPlanandemployingoneormorestandardpracticemitigationscenariosincluding,butnotlimitedto: PrehistoricResources

- avoidwherefeasible(avoidancebydesign,preserveinplace,capping)

- minimize(reductionofAreaofDirectImpact/Effect)

- mitigate(historiccontextstatement,datarecovery)

HistoricResources

- avoidwherefeasible(avoidancebydesign,preserveinplace,capping)


- mitigate(historiccontextstatement,datarecovery)

HistoricArchitecture/UtilityInfrastructure

- avoidwherefeasible(avoidancebydesign,preserveinplace)o


- mitigate(historiccontextstatement,HistoricAmericanEngineeringRecord,HistoricAmericanBuildingSurvey,advancedCaliforniaDepartmentofParksandRecreationrecordation)




Table 2‐9 Applicant Proposed Measures Theapplicant’sUnanticipatedDiscoveryPlanwoulddescribetheprocedurestobefollowedintheeventthatpreviouslyunidentifiedculturalresourcesarediscoveredduringconstructionoftheproposedproject.Ifpreviouslyunidentifiedculturalresourcesarediscoveredduringconstruction,personnelwouldbeinstructedtosuspendworkinthevicinityofthefind.TheresourcewouldthenbeevaluatedforlistingintheCRHRbyaqualifiedarchaeologist,and,iftheresourceisdeterminedtobeeligibleforlistingintheCRHR,eithertheresourcewouldbeavoidedorappropriatearchaeologicalprotectivemeasureswouldbeimplemented.Ifhumanskeletalremainsareuncoveredduringconstructionoftheproposedproject,theapplicantand/oritscontractorsshallimmediatelyhaltallworkintheimmediatearea,contacttheapplicableCountyCoronertoevaluatetheremains,andfollowtheproceduresandprotocolssetforthinSection15064.5(e)(1)oftheCEQAGuidelines.PerHealthandSafetyCode7050.5,uponthediscoveryofhumanremains,thereshallbenofurtherexcavationordisturbanceofthesiteoranynearbyareareasonablysuspectedtooverlieadjacentremains.IftheapplicableCountyCoronerdeterminesthattheremainsareNativeAmerican,itisanticipatedthatthecoronerwouldcontacttheNativeAmericanHeritageCommissioninaccordancewithHealthandSafetyCodeSection7050.5(c)andPublicResourcesCode5097.98(asamendedbyAssemblyBill2641).Inaddition,theapplicantshallensurethattheimmediatevicinitywheretheNativeAmericanhumanremainsarelocatedisnotdamagedordisturbedbyfurtherdevelopmentactivityuntiltheapplicanthasdiscussedandconferred,asprescribedinPublicResourcesCode5097.98,withthemostlikelydescendantsregardingtheirrecommendations.

APMCUL‐2 SCEshallprepareandimplementaPRMPthatwouldinclude,butnotbelimitedto:preconstructioncoordination;recommendedmonitoringmethods;emergencydiscoveryprocedures;samplinganddatarecoverymethods,ifneeded;museumstoragecoordinationforanyspecimensanddatarecovered;andreportingrequirements.ThePRMPwouldalsoprovideforsedimentscreening,fossilpreparation,curation,andpreparationofareportdetailingtheresultsofthework.Inaddition,thePRMPwouldspecifymonitoringrequirementssuchasthepresenceofapaleontologicalmonitorwhenworkisbeingperformedatformationswithhighpaleontologicalsensitivity.Ifveryfewornofossilremainsarefoundduringground‐disturbingactivities,monitoringtimecanbereducedorsuspendedentirely,perrecommendationsofthepaleontologicalfieldsupervisor.

APMCUL‐3 Aculturalresourcessurveyofthoseareasthatcouldnotbepreviouslyaccessedwouldbeconductedpriortothestartofconstruction.Thesesurveyswouldidentifyand/oraddressanypotentialsensitiveculturalresourcesthatmaybeimpactedbytheProject,includingthesubstationsites,subtransmissionlineandtelecommunicationcableroutes,wirestringinglocations,accessandspurroads,drillingandcranepads,andstagingyards.

APMGEO‐1 Basedonthefindingsofthegeotechnicalanalysis,SCEwoulddesignprojectcomponentstominimizethepotentialforlandslides,lateralspreading,subsidence,liquefaction,orcollapse.Measuresthatmaybeusedtominimizeimpactscouldinclude,butarenotlimitedto:stabilizationfills,retainingwalls,slopecoverings,removalofunstablematerials,avoidanceofhighlyunstableareas,constructionofpilefoundations,groundimprovementsofliquefiablezones,installationofflexiblebusconnections,andincorporationofslackincables.

APM Constructionactivitieswillbeconductedorphasedtoensurethatthenoisegenerated




Table 2‐9 Applicant Proposed Measures NOISE‐1 duringconstructionwouldnotexceedsignificancethresholdsordurationsidentifiedby

theCityofCarpinteriaResolutionNo.408;theCountyofVenturanoiseregulationssetforthintheCounty’sConstructionNoiseThresholdCriteriaandControlPlan;ortheCountyofSantaBarbaraEnvironmentalThresholdsandGuidelinesManual.

APMNOISE‐2

Equipmentandtrucksusedforprojectconstructionshallemploythebestavailablenoisecontroltechniquestotheextentfeasible.

APMNOISE‐3

Stationarynoisesourcesshallbelocatedasfarfromadjacentnoisesensitivereceptorsasreasonablypossibleandshallbeenclosediffeasible.

APMNOISE‐4

Wherefeasible,temporaryportablesoundbarrierswouldbedeployedwhereconstructionactivitieswouldcausenoiselevelsatsensitivereceptorlocationstobeinexcessofanapplicablecriteriathreshold.ForpurposesofthisAPM,schoolswouldonlybeconsideredsensitivereceptorlocationsduringinstructionhours.

APMNOISE‐5

Atleast2weekspriortotheanticipatedstartofconstructionataparticularlocation,SCEwillnotifyallpropertyownerswithin300feetofthatlocationthatconstructionactivitiesareabouttocommenceatthatlocation.

Source:SCEdocumentationsubmitted2012‐2014Key:APCD AirPollutionControlDistrictAPM ApplicantproposedmeasureBMP BestmanagementpracticeCDFW CaliforniaDepartmentofFishandWildlifeCRHR CaliforniaRegisterofHistoricResourcesPM10 Particles10micronsorlessindiameterPM2.5 Particles2.5micronsorlessindiameterPRMP ProposedresourcemanagementplanSCE SouthernCaliforniaEdisonSWPPP StormwaterpollutionpreventionplanVCAPCD VenturaCountyAirPollutionControlDistrict12.7 Permitting and Consultation Requirements 23Table2‐10liststhefederal,state,andlocalpermitsandconsultationsthatmayberequiredfor4constructionandoperationoftheproposedproject.56Table 2‐10 Consultation and Permitting Requirements Agency / Group Jurisdiction Consultation or Permit

Federal UnitedStatesArmyCorpsofEngineers

WorkwithinWatersoftheUnitedStates,includingwetlands

ConsultationwiththeUSACE,RWQCB,CDFW,andUSFWSforaCleanWaterActSection404permit

UnitedStatesFishandWildlifeService

Threatenedorendangeredspeciesandconservationplans

Takeauthorization(ifrequired)andconsultationwiththeUSFWS.ConsultationforSection7or10oftheFederalEndangeredSpeciesAct.

NationalMarineFisheriesService

Alterationstosteelheaddesignatedcriticalhabitat

ConsultationtodetermineappropriatebestmanagementpracticesforwideninganaccessroadinSuttonCreek.

UnitedStatesForestService

UnitedStatesNationalForestSystemland,LosPadresNationalForest

PermissiontoconstructcomponentswithintheLosPadresNationalForest.NEPAreviewforthesecomponentsaswellasadditionalSCEworkonforestlands,whichisnotrelatedtotheproposedproject,willbeconductedseparatelybyLosPadresNationalForestServicestaff.




Table 2‐10 Consultation and Permitting Requirements Agency / Group Jurisdiction Consultation or Permit

FederalAviationAdministration

AircraftoperationandsafetyinUnitedStatesairspace

ConsultationtodeterminewhetherCongestedAreaPlanapprovalforhelicopterexternal‐loadoperationsisrequired.ConsultationtoensurecompliancewithFederalAviationRegulationsPart77(ObjectsAffectingNavigableAirspace).

State CaliforniaPublicUtilitiesCommission

CEQAreviewandoverallapprovaloftheproposedproject

PermittoConstructforconstructionofelectricsubtransmissionlinefacilitiesdesignedforoperationat66kV.

CaliforniaDepartmentofFishandWildlife

Threatenedorendangeredspeciesandconservationplans

Takeauthorization(ifrequired)andconsultationwiththeUSFWS.ConsultationforSection2081oftheCaliforniaEndangeredSpeciesAct.ConsultationforSection1600oftheFishandGameCode(streambedalterationagreement).

CaliforniaDepartmentofTransportation

ActsonbehalfoftheFederalDepartmentofTransportationpursuanttoCaliforniaStreetsandHighwaysCode660to711.21andCaliforniaCodeofRegulations1411.1to1411.6.

Caltransrequiresthatallworkdonewithin,underoraboveastateorinterstatehighwayright‐of‐wayobtainanencroachmentpermit.ATransportationPermitrequiredforoversizeand/oroverweighttruckloadsthatexceedthelimitsofalegalloadasdefinedbyDivision15oftheCaliforniaVehicleCode.

CaliforniaStateWaterResourcesControlBoard

StormwaterdischargesandCleanWaterActSection401permit

NoticeofIntenttoobtaincoverageundertheGeneralPermitforStormWaterDischargesAssociatedwithConstructionandLandDisturbanceActivities,Order2009‐0009‐DWQasamendedbyOrder2010‐0014‐DWQandSection401PermitassociatedwithissuanceofaCleanWaterActSection404Permit

StateHistoricPreservationOffice,NativeAmericanHeritageCommission

Historic,cultural,andarchaeologicalresources

Consultationregardingknownculturalresources.ConsultationregardingthelistingofculturalorhistoricresourcesintheNationalRegisterofHistoricPlacesorCaliforniaRegisterofHistoricalResources.

Regional and Local SantaBarbaraCountyPlanningandDevelopmentDepartment

CEQAreviewandapprovalofworkwithintheCaliforniaCoastalZone

CoastalDevelopmentPermitforSegment3AandportionsofSegment4.

CityofCarpinteriaCommunityDevelopmentDepartment

CEQAreviewandapprovalofworkwithintheCaliforniaCoastalZone

CoastalDevelopmentPermitforaportionofSegment3A.

CentralCoastandLosAngelesRegionalWaterQualityControlBoard

NationalPollutantDischargeEliminationSystempermitting

AsdirectedbyStateWaterResourcesControlBoard,monitordevelopmentandimplementationofSWPPPsandotheraspectsoftheNationalPollutantDischargeEliminationSystempermitand401certificationprogram.SWPPPsarerequiredforstormwaterdischargesassociatedwithconstructionactivitiesthatdisturbmorethan1acreofland.




Table 2‐10 Consultation and Permitting Requirements Agency / Group Jurisdiction Consultation or Permit

VenturaCountyAirPollutionControlDistrictandSantaBarbaraCountyAirPollutionControlDistrict

Airpollutionandgreenhousegasemissionsincludingfugitivedust

City/County(otherministerial)

Floodcontrolareas,temporarylandoccupancyandstagingareas,grading,excavation,afterhourswork,encroachment,treetrimming/removal,andtrafficcontrol/laneclosures

Permitsforcrossingfloodcontrolareas,temporaryuse/occupancy,grading,excavationandshoring,andafterhourswork(ifrequired)

Source:SCEdocumentationsubmitted2012‐2014Source:SCE2012Key:Caltrans CaliforniaDepartmentofTransportationCDFW CaliforniaDepartmentofFishandWildlifeCEQA CaliforniaEnvironmentalQualityActkV kilovoltNEPA NationalEnvironmentalPolicyActRWQCB RegionalWaterQualityControlBoardSCE SouthernCaliforniaEdisonSWPPP StormWaterPollutionPreventionPlanUSACE U.S.ArmyCorpsofEngineersUSFWS U.S.FishandWildlifeService1

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