HomeMy WebLinkAboutStaff Report 03/26/2001 (26) . „ ? . . . _ •
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THE WITHIN INSTRUMENT IS A
CORRECT CORYOF_THE ORIGINAL . . .
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ON'FILF;IN THIS OF 7-0 FICE. •
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ID: AITET:( ;DEC. 1, 7 1998 :7Resolution No 98._16iL
LEWIS _ i • .
county cierk4otficio very.it,pccap:a%a,
4 taltitv., Administration B ld.g
Sutervisars qpme•Slat9 otkCalitorma.in&, r. •
no Ccounteat Sc .•rr#4 ' i Depuw Santa Rosa_ CA
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Deceni6sr :15, 1S98
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. ' RESOLUTION OF THE BOARD'OE DRECTORS, OF THE COUNTY •
•- - ' W.A.TER AGENCY APPROV TING:THE.\\LATER. RIPPLY AND i-RANSMISSION
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• - SYSTEM PROJECT AND.CbLLECTOR NO. 6 MAKINGCERTADN FINDENGS - -
AND DE 1.1tRivaNATIONS IN ACCORDANCE WITH , •II .CALIFORNIA
EN-71-1RONMENTAL Q4AL.I.T..Y A CT BELA1NC TO S J CH APPROVAL S.
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. ...INCLUDING AiDOPTION OF A.MITICIA.TION MONITORING PROGRAM AND . . -
• : - ADOPTION OF STAIE&LENTS PF;'Milfat-$6 COUSDERATIONS, H'
.... " ' DIRBCTLKTG TI-fE FILING OF NOTICES OF DEit.R.WNietATION FOR THE 'AI#A _.
5 • . , : . - SUPPLY AND 1RANSMISSION:SYSTEM PROJEGT;A.WD',FORCOLIECTOR NCI..
6, AND'flOvIDLNG OThER AUTHORIZATIONS .4:1ND DIRECTION REGARDING
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The Board'of Directors of the Sonoma County Water Agency (' Board") herebvi ...
. ! firilis. determines: d.eciateS'and.ordersas,.f011oWs:- .
• Procedural Facts
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1. In 1992.. the Cities and water disuicts wnich rely orx.the Sonoma Counry Wat'er .
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--:. Ag.ency for their Water'•supplyt(the."Water.conna.ctors"):requested-thatthe..Sonoma
County Water Agency ClAgentyl,initiate,aproject:tO proVide•a water supply to serve '
their future water needs, as defined by al5pliCabiegeneral,planS adopted by general
purpose.governmentalf agencies. I
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2. On May 1.‘9.-'12992, this,Board, by-Resoiiition.92-0716, directed.the Agency s
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General Manager to,orepa:re:arienvironmenial.impact repon for a water supply system
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expa.nsion:Projec: with theobjectrve,of.orovicing:a:safe. reliable;,and.ecoriomical water . ..
; supply to meet the;',defued future needs in the:..4.(17.etitv's.service,area The cproj ect was,
therea.fier identified:AS:the'Water:Supply and Transinielsion SVsretn_Project ("WSTSP"). ,
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3. en.May 19- . by Resolution 98-064-4, this:Board modified,the WSTSP;
upon the recommendation of the.,kzenc-As General Manager to delete the Aauiter
4, Storage anci.RecoverpComppr,ien bf-Lhe WSTSP, to modify the analysis Of diversion '
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altemauvessother than Collector No. 6. from a project to a program level and prepare a •.
subsequent FIR•for diversion alternatives, and:to determine that Collector No. 6 was
neededto:;serve existingsdernandand'was therefore an element of the Russian River=
Cotatl.Intertie Project; Resolution 98-0641•is`hereby:incorporated herein'bv reference.
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OnNovernber 1998. this.Board; bi-. Resolution 98=1423: certified.the Final..
FIR the WSTSP.in accordance with the reouirementsof CEQA. the State CEQ"A
Guidelines,the,Agency's Proceau s;for Implementation of the California Environmental
- • • Quality Act;(."CEQAProcedures"). and allother applicable laws. Public participation in
the environnental review process wasisubstantial. The Agency held four.noti ed public, -
scopmg teetings prior to preparing the Draft:FIR. The Draft EIR was:released for an 85-
day public,comment period and ' 'as availanie n libraries m the region. Three noticed
public hearings were;'held:by the Agency to receive comments on the Draft EIR. More
than-1.000 'written'and•oral comments were received.. The May.19, 1998 modificationsto,
the project were considered at both the May-S and May.19.Board..of•Directors meetings..
• following public,norincatioh throuQhLttie Board's regular'agendaand•mailed notice to an.
800 e person'WSTSP'.inariing list. The;Final ELR was released to the public 35 days prior
to the gate on whicn`the Board.considered its certification andithe public was notified of
availabilitv`of the Final FIR and the date'of the Board meeting to;consider;EIR •
• certification through--.both,the.Board's regular agendanotice and"mailed.notice to more
than 950 people and entities. At each roe the public hearings and:meetmgslinterested
parties had theiopportunity to speak aha'wereheard. The Final FIR was also available in. •
libraries in the to-lion. Resolution•98=1423 des&ibesthese opportunities';for-public
participation, more fully and also identifies the Agency's rolein_water•development.
Resolution,98-1423 is hereby incorporated herein byreference.
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Notice of'the tine.,ana place of the December 16, 1998 Board':meeting;to •
consider project;,approval•was mailed.:to the Agency's 950 person.`WSTSP-.. marlmg;list.
The public was also notified of the-tune and`d'ate of the Board,meeting• as part,of the
publrc:notice of the„Board's'regular agenaafor its Deeember;1'5. .1998 Board meeting. At
the December 15 meeting, memoirs of the public were,given the opportunity to address
the Board,on the issue of whether it"should-approve the WSTSP and Collector No'.,6.
Genera1PlanMConsistericv •
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6. On,September 2 l •1996, the Water Agency submitted he Draft FIR for the
WSTSP'to the County of Sonoma'sPlanning and•Resoutces`Management Department
("PRIvID",);in accordance with the.Agency's,CEQA Procedures. On;December 5, 1996;.
the-Sonoma Gounty Planning'Commission held a public study session,as part of its
regular meetingat which the'Commission considered proposed comments written._by
PRIvID staff acting„as:staff to'the Commission, on the Draft ETR for.theWSTSP. 'The
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• ComniissienpreVided•PRKID staff With additional.corriMentS. h•=ix.t that meetin2, interested
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persons had the opporninityqo sneak and were heard, . •
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7. Oq„December 18. 1996RR/vfD filed Comments on•the DraftEIR,with the •
Agency Whithincorporated.icomments and tbncerps:ma:de:thy the Planning_'Commission
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8, On October-13, 1998' the•,Asiency releasedthepropesediFinal EIR to the
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public. The Final EIR fullresponds7tol'PRMP's,DeceMber fl%, 19,9 comments. In
addition, on October 13, 199_8,•the4cleticy-Submitted the proposed Final.EIR to PRI'vW
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In conjunction with that submittal the,A.g.ency reCiestetithat,,persuant to Government
Code Section 65402(c) the County of Sonoma-iPlannihsiCommisSign,provide the Agency
with a determination•of;General;Plan.COnSiStency.. Tne,A2ency'S request was received by - . •
PRMD on behalf of the'Rlanning_COnirnissien on Oeteber16::1998..
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9. On December '2,1998,theSoribita,Coutty:Plarmiria:Coriunissjon. aa,dilly
noticed public meeting, ceniderecithezmatter•Of the consistency of the WSTSP with the
Sonoma County.General'Elanc at'WhiCh,tithe all interested persons had an opportunity .
. _ speak and were heard. The•Sonoma,Coluilry-PRNID staff.concladed,that the project was '
consistent with•-the General Plan and recernmenciedithat,,the Commission adopt a
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MI resolution which found ariddeteritined that the WSTSP was consistent with the Sonoma
County•Getieral Plan.. . I
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' 10. After•extended4 CilScUSS ion:,two ofthe four.alannin2Commissioners in '
attendance concluded that,the•project Was,,eonSiSterit;;With the Sonoma County General
- _ Plan and voted tO•apprOveithe resolution: one conelnded'that,the,project was not
consistent with the General Plan andzveteda2
cainst_the resolution j and one:abstained.
Under.Commission bYlaws no action was iakeri:'.A•11•Cortn-ilssiOners, however, requested
that their comments with respect General Plan.conSistencytheproVided"to this Board by . .
written memorandum bathe prepared by PRIv1Thstaff. The'Board,has.received,••reviewed
and considered the D.ecember,.15 1[998‘rnetrietatiduit'frorn,PRMD.staff which describes
the public comment and the•Plamling.,,CortirniSSon! dohalliSions-and.Consideration
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regarding:GeneraLPlab obtisistency... ,. •,. , . . .
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11. More than forty;da.yshavin2 qassed,since<the matter.was submitted to the
Planning CorfuniSsion, the preiect is conchisiVelydetnedlobe consistent with the
Sonoma County General.Blan. as a matter of law under Government Code Section 65402
(c). Nevertheless,..prior to,takin2;aCtien,ori the WSTSP and on Collector No.-6; this
Board has reviewed and CoriSicieted:theDecernber j5,. 1998 memorandum from P• IE
staff;andthe comments and conclusions of the members.of the;Sononia• County Planning
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Commission made attlieir D.esernber:•, ,1998 meeting. In conformance with the public
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policy reflected •by iG:overnmentiCode Seption65402,•this Board:haS c-andluclecljthat,lhe
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WSTSP and construction of Collector No 6 are consistent withthe Sonoma County
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General Plan Consistency is dew-ranged:in littit of the goals ?polities: and objectives of
- • the General Plan identified in the Final ET,Rat pages'5\8-9 and'5.8-E06 Rarti........Goal
to assure that-,Water-Supply facilities:die:adequate to meet projected needs and are
provided in a mannerthay.-preservessiparianhabttat, supports wafer dependentiresources, •
enhancesftecreational opporrunities,,,and preserve :anchenhances water cuahtv and the
_ environment. .
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.CollectorNot 6
E. When this Boa.rd-rnodifiedthe WSTSP on May 19. 1998,. it determined that
one of the orizinally proposed for the "$,TSTSP., Collector-No. 6Was,acruall • •
needed now-to ser•ve;:tekistins- deinand.atithori-±ed hyi.a prior Water Agency project, the
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Russian River-CotaifInfertieProject. Resolution 98_06z14 authbrized,the,General
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Manager to cornblete-enVironmerital-analYSiP,Of Collector NO. 6'asi:expeditionsly:a.s, -
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possible either in:the WSTSP-EIR•or, under certaincitctinistance.s, in a separate FIR
• • The:basis'for the Boards'determinationT;•3identified in:Resoliition'98t.0642-4:A3reviously
incorporated herein.
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11 The Final FIR. identified as the Final FIR for WSTSR, desCribea'ner only•
the impacts of the WSTSP but alsci-the impacts of constructing Collector No: O, an
element of the Russian River-Coma Interne Project as had been,anthorized.by the Board
in Resolution 9870644. Although the WSTSPisa.project proposecPtolSerVeifunire
-demand and Collector No 6 is a project proposed tcY,servevexisting'authotized,demand,
the ehYironTheatal'Inapactafoli•- othiare fiillyddescribed and analyzed the Final FIR
• Additional-Findings'
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• 14. bUtint the course of consideration of the WSTSP and Collector No 6,
members of the public have suggested that approval of the WSTSP and Collector No 6
be delayed until completion of a number of other proceedinas, incdina the ongoing Sectibn 7 consultation among the United States Army-Corps of Enzineers -•the;NatiOnal: ••
• Marine Fisheries•'SerVice and the under the:federal Endangered Species Act -
("ESA"); and the,Federal.Enerzy•Rezulatory•CommiSsion's pending consideration of
mddifications'to-PC8iEs liCense for its;Potter'Yalley'Project ("PVP7). •
15.. This Boar&recoonzes and acknowledges that it must implement WSTSP
and•construct Collector No 6 in accordance with all requirements of state and federal;
• law including the ESA The Bbarci!has'reiheWed the December 2,„ 1998 letter froarthe
National,Marine.Fisheries SerVice re.gardirizthe WSTSP and;considered the prohibition
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1 contained iri:the,oade of Federal Remilations (50 CFR.40109)•against making an
irreversible:or irretrievable:cdtritnitnietrof resources with respect to the agency action .
Which.lias the effect of foreclosinsrthe formulation or implementation of reasonable,
and prudent alternatives Which Mav result from the consultation among the AgencY,
.1<ilvEFS and the Corps. Nothing in this resolution or actiothauthorized b' this resolution is - -.
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'intended to or shall limit the,Agencys-discretion to take.appropriate action during .
consultation and response to the requirements of theE$26,,..,, The.Board 'finds:that the
adoption of this resolution and the Carrying out'ofany activities authorized hereunder -
does not have the effect of forecloSing:the formulation.ot implementation of any
reasonable and prudent alternatives which may:result from the Section 7 consultation. Ai
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such time as the General Managerireq-iiestfthis.Soard to cOnsicier awarding a contract to
construct Collector No &or any part of the-WSTS15„ the General Manager shall report to
• this Board with respect to the Agency's compliance;:whh ip cF1Z 462.0q.and all permits!' , ..
and entitlernents'for use including anyjr.equirement&under the:ESA. Further, the Board . • -
. is aware that the amount of water available in the Russian aiitet.syttem:could be affected
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by FER:C's future modifidatiotisIOPV'fiows.
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16. It is labwever, not,prudentpossible..of necessary to wait for regulatory I _. ..
a' certainty prior to taking any'action. This Board cannot foresee the ultimate of
qv either'the:ESA.consultation.or the Potter\' Pi-djent-kroceeclina and aCcOrdingly,
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cannot identifV.y any changes'inthe WSTSP or construction of Collector No 6 that would .
result from either:proOeeding, TheAgencY.i¤tiresponSible for providing water to
' 500,000 people and the water contractors have„Shit e-1992„relied„on the Agencys
intention to move forward with aproject to develop a water Supply to serve their future:
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. aowth. Collector No, 6'Will allow the Agency to continue to meet its ekisting
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- obligations and the WSTSP„'will respondtcrthe;Water contractors' request that the Agency
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provide their futire Water supply. Further delayinoltrranted.
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' . The WSTSP and Colle6totNo. 6 1 •
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[ 17.. The Board.hereby''imakes,the following;findings and-deterniinations in
connection with the proposed water Supply:mart-Frans-Mission System Projeetnand •
alternatives and with respect,t6 Collector No 6,:iti eiernent.of the Russian River-Cotatip,
Intertie Projecrand:it&jaiternatives, all as deSbribed intli&Pitai EIR.
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18. The Boarel-firiciSitliatheit more than one reason exists,for any finding, each
reason independently supports theL-fmciinz, '.
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•Review andCbnsideration of Final EIR
19. The Board,:of Directdrs does Rerebs'certifi. that it has reviewed and considered.
the Final'EIR.together with all•documents incorporated therein_, prior to making,its
decision on the merits of the Water"Suppny and Transmission SystetnProjectand on • • '
Collector No 6: and`further confirms that, as set out more fully;in,Resolution"98-1'42?.
prevtoush. incorporated herein.the Final'EIRrepresentsthe independent,judgment and .
• analysis of the Sonoma County WaterAgency and l.'s:an adequateinformatibriar document.
completed in accordance with CEQA;.the State CEQA:Guidelines=•and the Agency's
CEQA,Procedures.
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Less-than-Sisnificant'<and Beneficial Irhnacts Which Do Not Reauire'Mitidation -
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- • : 20:; The,Board of Director's fufds that the proposed Water Supplr and .
Transmission'Svstem Project and CollectorNo. 6 have certain;impacts which Are less
thanSithifioant or which are beneficial, which;,are fully and,accuratelysumriiarized in
Exhibit A, attached',hereto', incorporated nerem Dv this referenceAndmore fully+described
in'the,Final E . The Board is not required ov-law to adopt mitigation'measures for
impacts that are less-.than.-significant,or beneficial but has. as summarized in Exhibit-A. •
incorporated m i ation measures into;the WSTSP and Collector No 6-for some such> •
impacts. The adoption of such,mitigation measures with'respect to certain less-than-
• significant impacts, however, does not;obiigaethe Agency to similarly-adopt-measures or
policies-with respect to any other such less-than-significant or beneficial'impacts;,
Mitisable:SisnifieantorPotentially SimiificantAdverse Environmental-Imtiacts
• - and Necessarv"Mitisation Measures • - •
• 21: The$oard,ofDirectors fu ds thartheproposed Water Supply and
Transmission System Project:and Collector No 6 po`se certain siOifiCarit.or potentially
significant adverse environmental impacts, which are filly and accurately summarized in
• Exhibit B attachednereto. incorporatea herein by tnis,reference andmore fully descnoed
the Final'EI t The Board further flies that changes or alterations have'been required,
p and Transmission System Project and
m.or incororated;into the proposed tiV�t.,. Su
into Collector No,,6 that will mititate:those impacts to less-than-simificant.levels as
summarized in.Exhibit B. Based on such findings,,:and the above:statement of facts, the
Board hereby fines that the significant or potentially:significant'adverse;envirorunental
impacts posed bythe proposed Water Supplyiand Transmission-System'Project:and:by
• Collector No. 6, summarized in Exhibit B.-have been eliminatedcor reduced to a less-than-
s gi'ficant(Ievei.
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. -Unmiti gable.Adverse..Environmental Impacts .
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__. The Final EIR disclosed other_significant or potentially sigr meant I
environmental impacts that•may"not. or cannot, be avoided if the Water Supply and I .
• Transmission System;Project.ano.Collector No, 6 are auoroved. 'as;summarized in Exhibit
C attached hereto and incorporatedtherein by:this reference. i
Alternatives. .
23. The Board,finds that the Filial FIR describes,a range-of reasonable alternatives •
to the WSTSP and to CollectorNo. .O. However. as summarized in Exhibit-D attached • .
hereto and:incorporated herein by'this ret renceland more fully described in the Final .
EIR. the-alternatives to the,WSTSP and Collector No 6-either cannot feasibly achieve
. project objectives or will not avoid or subst!ntiallv lessen project impacts
Adoption'of Mitigation MonitorinQPro§ram
24. Pursuant'to Public Resources.Code.section 21''0811:6, the,Board of Directors,
hereby adopts a monitoring and epornng progam for the Mitigation measures that:were,
. mcluded.to reduce-potential impacts toia less-than signi.r cant•level. The contents of this
program arei;set forth-in Exhibit E (_Water Supply'and Transmission'System Project
Mitigation`Monitoring'Plan;-datedsO'ctober 1998),;attached hereto=and incorporated'herein
by this<reference. This mitigation;rrionitonng program•is desimed to ensure compliance
with the mitigation measures;adopted for the WSTSP and for Collector,No 6. It will be
. implernented,hi accordance with-all;applicable-requirements of CEQA, the State.CEQA _ '
• Guidelines and the Agency's CEQA Procedures': , - , • I,
Statementof'Overridina Considerations.
1 . . 25. As to the significant environmental.effects:;identified,in this,Resolution which
. are not mitigated'orrreduced,:to•a-less-than significant level, the Board finds that,specific
' economic.•legal.;social. technological,'or-,other'considerations make infeasible full
mitigation of those impacts:and'make project alternatives infeasible. or that changes are
the responsibility of another'agency and should,be adopted by,.such agency and not the I
'. Sonoma County Water Agency. The Board has wei2hed;the benefits of the WSTSP aria .
of Collector'No.6`, an'elementof the;Russian River-Cotati-Intertie Project.against.the
unavoidable adverse environmental effects identifiedihthe.FinalrEIR and'hereby . °
determines;that thoselbenefits:outweign the risksand adverse environmental impacts and
therefore further;.deternunes that these environmentaNmpacts.-are'acceptable" and � ,;p, .:>
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hereby find.s,:thatihere-iattOYe.-7tiding considerations Whicl-Imitizate:towardthe Board's
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' approval of the WSTSP and Collector No.,6,whic'n,are identified in.Exhibit:F and Exhibit
G,:respettiVely. ariadhed liereto,and incothorated,herein bv this reference: .
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NOW:TELLREF,ORE,,based!on the;record of this proceeding and the fore'going. . .
findings and determinations. the Board ofDirectors of the Sonoma County Water,Agency
. does hereby take;theifollowing.actions:
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.1-. .Aorroval.Of Water Stitiibiand Transmission System Proiect. The;Bbard
approves arc declares its intent to carry out the:Watef Siippl.y and Transmission System
Project.described-it.the Final EIR • .
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. . 2. Approval_of CiillebibiNd.,6.- Trie'DOard,approVes and•deciaresits,intent to
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_ tOristruttiCallector.lo. 6 an element:ofMe Russian River-Cotati Intertie:PrOjedt.. . .- _ - ..
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.3'0 Adothion of'lvlitigation-MbriitOring Prograin. The Board'adoptsvihe mitigation
monithrint,ptozain set forth inExhibit E .and authorizes and'directs the General
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' 'Manager to take 1i appropriate:steps in accordance with such proa•arnto eniuretthatithe
required mitigation.measin-es are Carried out. -
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Statement bf OVerrining'.Considerations for WSTSP: The Eoard•adob@the ,
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Statement of Overriding•:Consideratiatisrsetiforth int;Exhibif F after finding that the :_
WST-SP.has certain:envitonmental,•economic, legal, social i:technological and other •
benefits•whibfr:itiaketheunavoida'oleadverse•'.enyitottnental-impactsAssociaied With it
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acteptable,:anithaf Mitigation of'certain cumulative environmental:impacts is in the
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- • jurisdiction of otheragencies.
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5. Statement of Overriding'Considerations'for Collector No '6. ThetBoard adopts
the Statement of Overridiriz:ConsideratiOnS set forth ii Exhibit G:after finding that
Callectorill\To. 6„an eleiment4ofthe Russian RiverCbtati IntertierPtbject. has'certain •
environmental economic legal social technological and,other benefits Which Make the
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unavoidable adverse environmental impacts associated'with it acoeptable, and that
mitigation of certain cumulative enVii-ohrneiitai aripa:dts is in the jurisdiction of other
ageriies. • ' • - - .
•6, :Notices of Deterrnifiatibri. The,Bbaticl:ditectithe, eneral•Manazer tojile
NondeS•offbeternainarion with,thekCountv Clerk and the ClearinghouSe,in o • • -
accbrdneeWitli.the PrOYiSiensbf CEQA. the State CEQA GuidelinestAncit)*AgenCy's
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' •' CEQA�Procedures,advising ofTtheBoard's approval of the WSTSP and of Collector No. .•
6, an element,of the Russian River-Cotati Intertie,Project.
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7. Direction to General Manaeer; ihe.Board.further authorizes and directs the
• General Manager to" •
a. file all applications and with the State Water Resources Control
Board which maybe nec ssary or appropriate to carry out the WSTSP and to divert water
under the Water,Agencv's existtng,water rights•at Collector No. 6; .
b..take such steps as are necessary to finalize the Proposed Agreement for .
• Water Supply and Expansion•of the Russian River Water-Transmission System
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("Proposed Agreement for W,ater'Suppiv")„in substantia Rithetiform on file with the
, Clerk of the Board.,and upon its approval by the water,contractors present the Proposed
A�reetnent for Water Supply to4this $bard forconsideration:
c. .take.alysteps necessary to proceed with construction of Collector No 6,
incluaitig-preparation.cif-plans and specifications, and.initiation or•comnletion of all .
necessary permits and regulatory approvals including consultation with the National ,
ill Marine Fisheries Service under the Endangered Species Act•and, at such time as plans
1 and specifications are proposed for consideration; report upon such permits and
approvals and make.a`recommendation as-to whether it;is”appropriate to proceed with
construction - •
d. continue to complete enasieering feasibility-studies and environmental -
analvses for Board consideration ofsite-specific diversion alteriatives`for the WSTSP: -
e. initiate site-specific environmental•review of the Cotati-Kastania
Pipeline and Booster^Pump:Station_?.
f. take such.other as he tnayidetermine necessary or appropriate to
complete the WSTSP:'and constrict Coiled-tor No 6_ an element of the Russian River-
• Cotati Intertie Protect.
8. Custodian'of Documents. Tn° Board'is the custoaian of the documents or other
material which consvtute the'recoraof proceedings uo on whicn.this Board's decision
herein is based: These.documents may be-found at 57i Administration.Drive,
Room 102A, Santa Rosa California., - .
27590= 12/15i98 9
•
522
DIRECTORS: •
CALEYes _ HARBERSON Yes SVIITH ,Yes REILLY no KELLEY 'Yes'
AYES. NOES 1 ABST:AIIi _ABSENT ..
SO ORDERED.
•
•
I
27590 = 12/15/98 • 1-10
523'.
Od
•
• EXHIBIT A, .
•' ,LESS THAN<SIGNIFIGANT-AND BENEFICIAL IMPACTS '
- WHICHDO'NOT REQUIRE,MITIGATION
•
EARTH IMPACTS
Less-than Sieniflcant/Beneficial Effects - .
Earth imoact 5 ' [ ;Const action of site improvements"far,the Vdater Education
Prosra vfield study site wouid'result;in minor, shor-term disturbance to,the soil surface.
WATER I
Less-than-3 isnificantBeneflcial,Effects, - ,•
J. - Water Impact 2:, The-proposed proje. t`would increase the amount of water
available:for publicwate supply. I
2'. Water Impact -3': .Increased-re[eases. from Lake,Sonoma' would result i I '•
• increaed fluctuations in lake levels at Lake Sonoma: '
xw :
Water [moact:o t?• Toe:storage capacity's Lake Sonoma at the beginning of
i the water year would'increase due to lowered'wates elevation levels.
Ilik• 4. Water [tnoact-c f• The Russian 'Rive Component would result in a minor
- increase irvsedimentsentering Lake;Sonoma.
f. 'Water Impact -6; Increased releases from.'Lake .Sonoma would result in
changes:in.streamflow•in Dry Creek between Warn„Springs Dam and the Russian River,
• and the.Russian_R_ iver?:from the-confluence of Dry Creek"to the Agency's diversion points
at Mirabel.
6. Water,imnact45 '. Increased,releases durine.the dry season would increase the
dilution of existmgfoollutantsin;Dry Creek between Warm Sorings,Dam and the Russian
River, and the Russian Riven from. he: confluence of Dry Creek 'to the Agency's
diversion ooints:atMitabel. . ,
7. j Water impact°5 -8t TneiRussian;River Cemuonent would result in a decrease in .
water temperature,of`approximateiv 2°F in the Russian River just below the confluence
• of;DryCrdek,. .
$., Water Impact: S 2-9 Increased _diversions' would •alter the hydrology of the
• Russian River downstream of Mirabel,
o ' ' WaterImoact 3-10: rA decrease in flows'downs_tream of,IvIirabel would result —
in.less,water pres"entto dilute existing;pollutants.. . .
A i
! P-1 I
524
•
SIR=Q UAL ITY -
• Less=than-SienificantiBen racial Effects •
t_; Air Quality Impact St4-l Vehicles and equipment used d uring, construction,
would;result in a short-term: minor increase,in exhaust emissions,
2: , Air-°Qualitvtlmoac 5.4—:3:-Sanablasting; painting. and coating of project facilities,
would result', n,a short-term detettoration,Of local air quality- •
' Finding
No mitigation measures are required as�theseimpacts.have been'ideniitied as', being.- less
than significant, however, mitigation measures,are proposed:which further assure".less-
than=sienifiicant effects.
I; Air Quality Mitieation''Measure 5.4-1: The project specifications will Frequire
' that all venicie and:e4uipment emission levels meet current air•,qualitvistandards,and,that
- the;contractor ensure that idling time for;all heave•equipment bean inimized to reduce on- _ ,
siteemissions. - - -
AirQuality Mitigation Measure 5t4-3A;;The project specifications'will require •
_ ._ ,., • • mat thescontractor-:comph with an'emission�recuirements of the Bay Area Air Quality .
• ='- Management'District or the Northem.Sonoma County Air-Pollution Control District'for
, painting. end'coating activities.
ill
_ 3. . •Alr?Qualiry Mitigation.Mea ure;d:4=3B: Paint selected for water storage,ptanks
will„be of a type approved by the National Sanitation Foundation and'either the Bay Area-
. Air Quality Manage`ment.District or the Northern Sonoma County Air Pollution Control
' -District: .
BIOLOGICAL RESOURCES
Less-than,Sisriificant/Beneficial,teas .- I
• 1. Biological :Resources Imbact 5.5'-;1': Water:conservation-measures; may cause
enanges: in types•or plant species used for landscaping; and may result in impacts to
urban wildlife: . .
Biological Resources Itnoact.D 2: Teachers and students would generate noise •
at the Water Education.field study site iMthe W'ohler area,which could::result in impacts
towildlife,,
;: ,Biological, Resources, Impact : 5-9: The increased indise and the ,increased
presence Of ham`ans related.to operations andt.:maintenance activities would result in an
impact to wildlifespecies. -
i. Biological Resources Impact 53,12: Construction of'Kawana Springs Tank No
2.would result in snort-term noise.impacts'to'wildlife. . •
' 525
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FISHER"ES•K,EOURtE-S . . . .
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-Less-Min-5 ignificant/Beneficiai:Effedts: • ,
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,
Fisheries Resotirces;impact 5,611: Quring;critically, dry years. doh:iv:axe( storage
• in Lak-aSondrna,WouleHe'depleted during late,-stithterand early fall:
. .
2. ..Fisheries Resources-;1Moact..5:6-2:• Lower dissolved oxygen levels 'In Lake
Sonoma potentiallv,impact rainbow trout.
. .
_ . •. .3. Fisheries Resources Ithoact 5,63:-- `Glianges in .strearnflow .velocities and/or
- • ., stream.eleVa-fidna-rinay. have,an,impact on;.passage•fOrishad at the locations of temporary
..
dams on the Russian RIVer.
. .
4 FiSheries',Resbnicet.impat: 5.6-5f The Russian River Component would result'
in a decitage.;:in7Water•ternigerath rd.Uf a,4roximately 2°F in the Russian River just below.:
the confluence:of•Dry, Creek. - . ' . .
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• . - Le.ss-than-Signincant/BenetiCial Effects
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Noise.Imoact 517.-.I': -Teachers.and.students Would,continue to generate noise at - -
.. generate
_ .
the Water,EduCation field study site in the Wohler area..
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2. .Noise Impact.5:7_73`i, The e:propoSed.cbllector Woliki.generate noise. This noise is
not•anticipated to be audible at any residence; public use area or other noise.sensitive .
- . . area.
, . '- - , • -
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Fthding. .
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No mitigation Measures,are;required as these impacfs have been identified as being less
than significant,,nowever:nnitigatiOn.meiSureS are proposed Which further assure less- - • '
than-significant effeci§.
. .
1.
Noise -Mitigation, Meashre.5.7-35. Nkithin-6 Moriths, of completion Of CollectOr
No 6, .kgencsr,staff,VVilcsineasurenpis&levelaythe,collector, nearbli,, reside-nces, public
use-areasLonotherstorse sensitive area with and'Withoiit"the collector operating If noise .
• .
i thenerateth by the,collector exceeds the recommended Sonoma Counts, General Plan.1i -
--. - -- -- . • •
1
. acceptable noise level: forlthose?areas,,the.•Auenev will construct noise-redbtina barriers
or enclosures•iaround,.ihe noise generating eqi.upment to the extent needed to make Mile .
faciiity,meet the Sbnotira.... ounry General Plan.?s noise standards. Although the collector
iK not anticipated to .crenerate-Significant noise impacts. :this )mitiaation measure is
•• - ..
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expetted to becapableofreciuciagnoisedinpa:ats1toia les -thah-tialificant level. I
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_ - - _ • 526
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LAND USE. .
Less-fnan-SianincantBenefdial'Effects •
I. • ,Land Use ImoacL 5.3-1 Water conservation 'measures, may cause changes in
• existing land uses clue to •water use .limitations imposed by the water. conservation
'measures. - . -
3.. Land Use; Intact r:S-•: Construction i on of site improvements' for• the Water
Ecucation.fiela•study=site would:resuit in minor chanses,in land'use.
TRAFFIC
Less-than-SianiftcantfBenefiaial Effects •
I. Traffic Impact 5.9-A: Uehicie use`.in:the'•Wehlef area will continue;as aresult of _
• the Water'Eaucation•Program. • •
2- . :Traffcoact.D o ' The:constuctioof Cllector No6 ad, pptenaces" . - •
woUlciiresulV.Mian increase in vehicle trips, onmarilv'during construction activities. '
.
. • Traffic lmoactsD o li: The construction of tanks and'booster pump station_ s-would
_ l
result in aniincrease in vehicle trios, primarily during construction activities ,
PUBLICSERV;ICES.AND UTILITIES •,
'Less=fhan=SisrtificantBenencial.Effects? . '
I. Public'Services and'Utilities Impact-5.10-I: The proposed project would require
new electrical' power facilities;.and would result in an alteration of existing power
facilities.. - . .. . .
2. Public Services and Utilities Impact S 110-2: The:proposed project would:result_ ' '
in changes to the Agency s water transmission system. -
Pubiic•Services and Utilities:Impact 5.10-22 The proposed• collector pipelines;
tanks, and booster pumping facilities;would result in additional water storage capaoiIiny,_.
,and increased water levels in existing water storage'tanks, thereoy,providing adaitional
.. • water-and water pressureforfire suppression needs. • - .
ENERGY -
. Less:than-Significant/Beneftial Effects` . •
1'. . EnerovImoact;5 I 1•2; The proposed project would result in,the.increased u'se of
diesel fuel.
i
A-4 -
. 527, -
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VISUAL.QUA.1.=
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.
40,
Less=thaa-SianificanilBefietiOial EffectS _
_ .
. .
. _ .. .
_ .
Visual Qtialitv, Impact 5.13-1: A decrease in lake level el&vations at Lake
Sonoma would result in a larger exposed bIand.around.,theilake, resulting! in an impact to
-
visual quality. . • . ,
•
• 1
RECREATION . •
, . .
. . .
Less-thanrSianinbant/Benesficial Effects . •
, _ -.. - • ..
. . •
1. Recreation Impact 5i14-4: Increased r-eleasesIfrcirn Lake,Sonoma would result in •
decreased accesatolboat-in,carriparounds.
. , . . . .
2. - Recreation Impact 5.147: Due to increased noise.and'imoacts to visual quality; ..
thejproposedicollectorwoulcrhaVe an ithpact to recreation in'thlearea.
. .
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" . CUMUL.A.:TIVDIMPACTS
- _ ,
> •- ' ' ' . .
Less7than-SiarlifiCant/Beneficial Effects i
. . I. - - Cumulative i Impact 6.3-2: Increased' releases from Lake Sonoma needed to - -
i
maintain rhininihni.gtreainflows while satisfyina:water demands of the WSTSP and other
. . ... . .
•, water diversions in theiilf(Ussiar! River watershed, would result in a decrease in average
i.•
lake elevations.
.. • ,„ . . • .
J
i -, Cumulatne:Irnoact,6l-3-9:-During critically dry.years, coldwater•storaze in Lake
.
_. . . -
1, Sonoma;woulc be depreted.during late SUrmet n •earlyfall
. -
' • 3. Ciiinulative,linoact 6:3-13:, The WSTSP in combination with related projects
could have traffic impacts or impact traffic safety
. .
. . ... • ,
• ,
CumulatiVetriinict.6.3-15: A decrease in lake elevations at Lake Sonoma would
, • result in a larzer OkTp-osed band around the lake, resulting in an impact to visual quality. ! .
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. ' 528
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EXI4IBIT-B,
- .
0
SIGNIFICANT EFFECTS \VI-ITCH:IC-AN BE MITIGATED
TO,A4LESSTHAN-SIGNIFICANT LEVEL
. ,
EARTH IMPACTS
. . .
. .. _
-SignificantZflects - --- -
Earth ;Inma.et 52-2: Areas cleared curing construction would' be susceptible
to surfac- efoSion . - . _. „..
.
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1 Earth Impact g.
-pact 5.2-3: Trenching and. excavation would result in disturoance of
_.
„groundksurfaces.„
'Earth nIiiinict 5:274: Transmission system.facilities would be subject:to Zround. '
shaking andiOr around failure„during ideal ancrretional seismic activity .. -
4: ' ;Earth Ithoact, 5„.2-6:-Water storage tanks would be [subject:to ,ground shaing
afid/or ground failure during locaivarid regional seismic activity. •
.-5'. •
Earth 52-7' Kawand Sprinas Tank No. 2 Viduld,be subject to ground
.
_ .
shaking•durina local andieriibrial Sel5ITIIC:aCtiYitY. -.
•FACling.
.
. .
• Changes or ,alterations should be required in or incorporated (intb,. the prbject`WhiCh.
. .
avoid or Substantially reduce the signifieant environmental', effects as identified in the
. . -FinalZIA. .
Fact-in Slitiport'of Find:m.7 . .
. _ .
,
The significant effects listed -above can be reduced to a less,ihanrSiStriiiiCant level by - -
virtue of the following mitigation meaSgres-tbidentified in the Final'Eat.,being incorporated
•"infolhe project.
. . _,
I. Earth .Mitization, Measgre.D'242A: Temnorary erosion control measures will be
. - . .
proVicied,Or',.ekoCiSed.areas including, but not iimitecito, silt fences and straw bales placed
' 'along the based, of exposed slopes: around surface water features around site •
marains;,and:revegetaiion-„of cut slopes with annual grasses and/or legumes'.facilitated,15y
mulching, hYdrogeeding and/or geotegile cfalarIC Temporary,erogion,control Measures
will be provided after completion ofaradirig)and.prior to Novernbefl of the construction -
.
'year: • . .
.,....._ ' _ .
. ,
:-). Earth MitigatiOn',Measure 5.:2-28:. Longer erosion) control measth-es. will be
. - provided by revegetating areas disturbed curing construction with California native
. • . ..
- 2round.coyer plants; hrubs, anCltries.
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B., .
-• • 529
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2. Earth Mitigation Measure 5;2-3: Trenches and,other excavated areas will be
•a 'backniled,and all sm—fads restpreo Excess excavated material. will be disposed of in
accordance-with all'aopitcable local sate, and federal,regulations. The:contractorwill be
required' to submir'to, the Agency's. Construction,±Ihspeciioh Section a copy of any •
• grading permit required for suchdisposal site under�the provisions of Chanter 3309 of the
Uniform Builamg„Code. 'and 'Will' the also e local representative of the California
.
Detartmenttof Fish and Game regarding any intended'disposal++site:
Earth ,•Mitigation: Measur 5.2-4: The transmission system :facilities will be
r designed to -meet or exceed the. applicable earthquake design requirements of the
UniformBuildmgCode; - - .
Earth Mitigation Measure
5?,.-6 All -transmission system- facilities will be
designed to meet. or'exc ed ;the applicable, design requirements of the
Uniform,BuiloingrCode Water;storage tanks'wi11 aisobe designed to meet or exceed the
- antiicabie'ise smlc design requirements of'the Am ,:can•Water'Works Association; and
- the design'recommendation's of the soil and geologic_investigations.performed for each
tank site.
I
.
' 6. Earth Mitigation Measure D i; lKawapaiSpringsf Tank No 2 will be designed to
met or -sceed the ;azplicable earthquake design:requirements'of the e Uniform Building
p requirements of the American Water Works
C'oge: the an ucable ueismmc ,desi n
- association, and the aesign recommendations of the :soil and geologic investigations
performed for the tank+site: '
WATER
. ignincant Effects cts .
I. Wate :.lmoact'5 I .:-Soil.. erosion, resulting, from construction activities could
pdtentiailV'irrmpact=wale' quality. if sediment is deposited,or Discharged into'the Russian
River. - :
?. WatentImoact.5 Lo High volume°pumomspmav result in clogged well screens .
around;CollectorNo.,6. wnich°would affect the Agency stability to provide water.
• ;. Waterlmoacrc li: Lowered groundwater levels resulting'from the operation
. of Collector;No_ 6 could auverseiv imoact::neighooring wells.
Wale `imoacti. ,1.4: The impervious‘:suriaces of'proiect facilities may slightly
increase•surface runof,in the project axes;
incline it
Changes or alte ations should be required in; or incorporated' into, the project which
avoid or`substantially,reduce' the significant environmental effects as identified in the
Final EIR. - ii
u
B-
530
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•
Facts in Support of finding. • .
a
-Die significant. effects listed above can be -rediided to :a less-than-significant lever by le
_
virtue of the•f011ow.inst•mitization measures identified•:in'the,Final,B,IRbeing;incOMpeirated:
• into the project. '
• , . ,
I. Water Mitigation Measure 5..:-VI,: All construction activities will'betperfOrfried
• in comPliance With the requirements•of the California Regional Water.QUality"Cdritrcil .
' Board. North Coast Itie.gion..- Order No 81-73-, and with appithable California. Regional: •
_ .:
Water Quality'Control Board National Pollutant Discharge Climinaticip System ,pemiit
•
requirements. .
._ .. . _
. - -
n. Water Mitigation Measure,:-5,3,:12; Collector No 6 will be'designed constructed,
operated. and maintained: to ineet or &teed:applicable requirements of the American
Water Wark.S.Assotiation. AWW.A) Standards for Water Wells. -Collector NO.-6twill.not
. - be pumped at capaCity for zextenden periods of time ColleCtor Nic:;6: will be •sealeci•to
• •
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;protect water quality pursuant tb;the State of California Water Well,Standards.-.:Sulletin,
....
74:81; ancL.thegalifornia Well Standards, Bulletin 74-90. 4-4::::,.? ' • -. . . -„ . -
. . . -- : .:".:-4:1•74,>,;•4: - „-• . ' : .• . : . .
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3: Water Mitigation Meastite.?..3-1:3:;At:a rhinitnum,'wellstwill be monitored within .
I.000;foot .Mdin? from Collector No. 6 and for one year following construction of
CollectoCNO.:61 The monitortnikartin Will include any nei.ghboring•We well that isTltientified
. by•ilie ,,kg_enc:Y as haying,the pdtential to be Significantly it-rip:acted,by the operation of •
Collector No 6.- Monitoring !will. be extended if determined by.;the• Atzend:/' to 'be - •
necessary after the first year of. monitoring has been completed and evalnated. If 40
t.
.. ... .
monitoring determines thaitittroundWater leVels•have,fallen to the point Where-production •
capacity of a well .is.signifiCantlylaffected. thereby threatening the,water SuPti12, to an
adjacent Well owner, the Agency will reconstruct and deepen the properry,oWther;s"well
to allow it to'..reach the lowered groundwater level; will construct a new welliat,alocation . .
' further:awayifrom the proposed collector to replace the affected well;;anittior,will provide
• . .
. •
the owner of the affected well With:.a.,:waterlsupply from the Agencfs. pipeline. If an
. affected-weft is,close.enoug_li,to theTroposed collector that it can be :deter-Mined with
• • •
certainty that the proposed-collector would significantly affect the producticiticapatity Of
the Wellt the mitigation wail:a-will be incorporated into the project SpeCifications for the
construction conthact•for the nropbsed,dpllector. .
. ,
Water Mitigation Measure 5.3-•I 4: Drainage improvements for each;facility will
• be designed in acccirdinceViith the Agency's;:FloOd Control Desian,Criteria.
. . .
AtR.:QUALITY
. .
SignifiCant-Effects• .
. .
. .
. . . .
.;X:Iir Quality Impact 5.4,1: Project construction activities would:•reSultin an . .
_ .
increase in fugitive duSt.
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Finding .
•` .. Changes,-or, alterations ;should 'be required in or incorporated into, the project which
avoid or ,substantially reducrthe significant:environmental!ieffects..as identified in the =
• F,.. na1,EIR' . •
. Facts i rSimport of-Fuindmg , •
,
The significant effect bliSted :above can be reduced to a less-than-significant level bw
virtue of the_iollowing mitigation measures identified in the Final EIR:being incorporated
into the project:
• 1.. Air Quality'Mttigation',Measure 3.L ' The oroject,specifications will require the
, contractorto comply with the,dust,control,provisions=of the Standard Specifications for
Public Works Construction and'.„depending„on the work,location. any requirements of the
Northern Sonoma Countv Air,'Pollution Control District or the Bay Area Air Quality
Management District ,I
I
• BIOLOGICALRESOURCES -
Significant'Effects II
I. Biological';'Resources Impact 5.=3 : Construction of Collector No 6 and
appurtenances would result in the loss uand/or distirbance;of'up to 13.3 acres of riparian
woodland and annual grasslandfveg anon:
• • - . _. Biological''Resources Impact 5:5-4:. Construction...of_Collector No. 6 an d
appurtenances would 'result in tree trimming and/or limping which would impallt
3. Biologicar,ResourcestImpact 5.576: Construction of CollectorNo. 6 may result iiL r;
the removal of two sensitive^free:sp cies: valley oaks”and/or California black walnuts. !'
4. Biological,Resources Impact 5Sr2::Construction,activities for Collector No 6
and appuitenances m_ay result in impacts'to the yellow'-breasted chat, a California species
of special concern.
•
c`; , Biological''Resources,Impact 5.5-'10 The proposed poweriines would create the
potential.for electrocution of_birds., .
. li
6. 'Biological;Resources Impact c i .
;I :Excavation of pipeline trenches and'backfill -
of those trenches may indirectlyampacr,nearby wetlands:and small watercourses.
,I
Finding U
Changes or alterations should be repuirea in on.incorporated into the project which
avoid or,substantially reduce the significant:environmental effects as identified in the •
• Final EIR.
B4
. 532 •
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Facts ih Stibbortof Finding
The significant effects listed 'above can be reduced to .a. less-than-significant level by .
Virtue of the following mitigation.,measuresidentified in the Final EIR being incorporated
' into theproject. .
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Biological Resources r Mitigation Measure 5.5;3.:;The facilities will be locaied so
as to minimize veaetation. rernoval. Wherever Possible: areas icleared of vegetation. • .
.- during construction will be seeded and/Or revizetated. For each ,acre of eh-jai-inn
woodland vegetation removed an 'acre of riparian 'woodland 'Will.Jab replaced., The.
-"- -' Agency will prepare and implement a revegetation plan The,pian will',be coordinated
. - with the California Department of Fish:and,Game, as appropriate. Plants,SeleCted,for
. .
. . . ., .
. . revq2etation,wilF.,teCalifornia native species Planting requirements:in the revegetation
plan will bb baSed:upOn,spedies composition densities Withintheiareat be'impacted.
. . .
At a minitrinm. a,replacementratio of 3:I will be used to replace all!native trees removed
.
that are over...4 inches'diameter breast:height (DBH), although higher densities may be
. -
used depending on the type of habitauimpacted. The final revegetation plan will'include .
.
details regarding planting, implementation: Maintenance survival rates: and monitOrintt,
. .
• .-plans:and,sChedules: 'Matntenancereguirements,may-include, but will not be:Jiiffictea to -
irrigaiimi, plant replacement, weed centrol, and protection from lierbiyores The
revegetation' plan will also inClude :5: years of mitigation ,monitoring: Mitigation will
. , oceur as nearas possible to-the impacted.area. .
. . •
, .
7
_. Biological Resources Mitigation Measure 5.5-4i, Tree trimming, and/or limbingy
will,be performed in accorciance.with'the,AgencY's standard[tr= proieetiommenaires,and 0
the International. Society of ArboribulturetZTree Pruning Guidelines in 1995
,..
,-...P.tojeCt. apebifidations? will reignite that an a.rborist evaluate any sensitive tree .species
along the pipeline route in tneevent thatirenching occurs Within.ihe-driiiline:.
. ,
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'3. Biblogleal Resourbes,MitigationMeasure 5.5-6A: Whereyepbssible..ilie
. . . .. .
-- . . •
Agency--WillilOcate:faciiinesiro.avoid or minimize impacts to valley oaxkiandkorGalifornia
black trees.
Biological Resources Mitigation-Measure '5:516B:,The Agerity'S.standard tree
protection tneaSities will be implemented to protect valley oak and/or California black
.
Walnut trees that are not authorized.for removal.during-rconstructiork
, .
. ... 5.
Biological Resources fMitiliationMeasUre,5-.5-6a,Any valley oak or'Caiifornia _
black walnut removed measures over 2.1.' inches DBH,will.,be replaced in kind a
. _ ...
I. ratio. Valley oak--or California black Walnuts- smaller: than 4 'inches DBH'will be
redlaced, cti kind at ,a, P.,I tatio. "This, mitigenbri,.measure will 'be; implemented' in
:Conjunction with the ree2e7.4iion plan(s) of Mitigation. Measure 525-3.. Mitigation will
:occur as near aspossible tothe.kimpacteti area.
. • - .
6: Biological Resources Mitigation Measure;5-.57: Wherever possible construction
activities in riparian woodland'area:surrounding:Collector No. 6-will be limited to,late
. ,
.
summer through earlyifalt(uniil the.statt'Ofthe rainy aeason). to avaid-des'tthetion of nest
—
sites or interference with breedin g; behavior. Where it is not possible to delay
construction activities prior to construction :beginning in riparian woodland-areas:, the
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. . - '533
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Agency. will survey Se proposed;=onstruction area,to determine the presence of any
4, vellow-breasteds chat nests Wherever possible, project routes or'alignments will be re-
routed to, avoid impacts to•a,vellow-breasted chat nest: If complete avoidance is not
possible:. then a','nest.protection- zone will be aefined:•and,;physical :barriers such as '
fencing will be installed, to prevent construction, equipment from :disturbing the nest:
Nests wilt:be monitored weekly during construction activities. and protection`measures or
construction activities Will be modified as,:necessary
:
Biological Resources•Mitiga fan leasure.5.=40:Wiresoabins of 60 inches will
. be-maintained for all powerlines. .If'economicaliy feasible. powerlines may be installed
n underground';coddui : .
8. Biological:iResourdesi Mitieatioa' Nleasure 5.5-1.1: During preparation of site-
• specific environmental.'documentation' or pipeline:projects; wetlands and other waters of •
the United States!will Pei delineated' along pipeline routes so as to provide for proper
• ' - planning=of'avoiding-and/or.minimizing impacts tosthose;sensitive areas. Trenches will •
be backfilled to„original grade with native material:to helprrestore surface.drainage and
subsurface.penneatility. •
• FISHERIES RESOURCES
Significant Effects
I.- Fisheries Resources Impact .5.6:4: Ste Ihead coho and chinook salmon, and
striped bass migration into the Russian Rive may be affected if the changes in
• streamflows resulting tromp the or000s,ed project would result in a prolonged closure of
the mouth Of the•Russian River. •• . . .
Fisheries Resources Impact 5.6-6. Construction activities and the removal of
u_. ..,
grassland vegetation would impact the nesting:haoitat.or the-western-pond turtle,
Finding '
li
Changes or alterations Ishouid be required] in. or'incorporated into, the project which ,
avoid or substantially reduce the stgnificant environmental effects as identified in the
Final EIR.
Facts,in"Sunport•ofFinding - .
The significant'effects listed: above can be reduced to a less-than-significant level by
• virtue of the!followingimitigation measures'identined in the.F EIR Being incorporated
ntb.the project. r .•
. 1. Fisheries'--Resources'.-Mitigation Measure S.6-=t: The Agency:mill continue to
implement the:preferred esivary management plan
' it
. 2 Fisheries Resources'-'-Mitigation Measure =:6-6:,Prior'to=construction,beginning in
• an area- the Agency'will survey the proposed construction area to determine the presence
• of pond.turtle,nests. Wherever possible, project routesior alignmentswill be re-routed.to
a
.. . . B-6
. 534
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avOid itnnacts to'"raJ pond : le i nest. If complete avoidance is not feasible, then: a nest
, .
'
protection zone will be defined:-and physical barriers such as fencing and/or'hay bales
will be installed f to prevent ?construction equipment from ciisnirbina the nest, and to
, .
'
prevent pond turtle hatchling,srfrom inadvertently entering the construction zpne. •Nests-
., .. - •
will be monitored daily during cOnstruatidn activities by the Agency to check for the
emergence of pond -turtle hatchlings. When hatchlings emerge from the, .nest. •
•
construction in',the:area will be to allOW the hatchlings:safe access"to the river or .
. ponds:
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;NOISE
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• Signiticant-Efrects • • .
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Noise Impact 5.7-4::Conitrudtiorc:adziV:ities and.eguipinentlwould generate(noise
in thelproject area.
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Finding . ' - • . - -- • •--
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Chadges_or:alteratidris should L,be,:requir'edcim oi-' incOrpoi4ed:into, therojct: whic
_ _..•
avoid or substantially reduce the significant environmental effects as identified in the
Final EIR: . .
. . . .
Facts in Sunno-rt of Finding.
. . .
. ,
The significant-effects listed above can:toe reduced to a less-than‘signifiCant, level by
•
vireue,ofithe following Mitigation Measuresilideniified in the Final EIR being incorporated
•. into the project:. •
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I. •Noise Mitigation Measure 5:.-7,4-.'Consfruction- in areas within city. limits will •
•
comply with the applicable city ordifiaribes, of‘apibiicable city szehth-ai plan policies or
. measures:thatigovern noise: .. .
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'Significant:Effects:
I., Traffic Ithbact 5:9-2::Construction-of pipelines within roadWays would result in •
inconvenience to:residents,,and/or::n-affiC delays: including::ctelays.)for emergency
response.vehicles: - . .
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traffic Imoact5.95: COnstruCtion•tactivinesWiihM:or along roadways would
cause temporary traffic safety hazards.
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Finding.
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•— . .
. .
Chahges or alterations should 'bei required M4. or Incorporated into, the:project which_
• avoid or substaritiallY reduce the significant environmental effects as 'identified, in the
Final EIR. •
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- .... (131
. ' .. 535
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•
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Facts" jii Stioport Of-Finding, •
. . ,
The.significant effects 'liked above can be reduced to a"less-than-significant level by' ..
virrue.of,the following mitigation measures,idenfifiedin the Final EIR being.incorporated'
- . • into the projett. - ..
. . •. ..
, .
•I-. Traffic Mitigation Measure 3.9-4A: ',Residents along roadways affected by
construction will be notified at ,least one week in advance of commencement ofi -
• . construction that traffic flows,willbe,subject,t6,deloursvanc17Or delays, and that access tol
individual driveways.may be diSrupted during weekday.,working,hours: Access will be
. .
restored to allf-residence'§c.fbr all non-working;hpurs.lholidays. and•weekends. The projectl
. '
area roadways' will be posed at least one weellk in advance of commencement of -
,..
. construction, to,iinform drive& of the impending construction work and likely delays
y service providers (Sonoma County : . .•
1 . . ,. , .
Emergency :Sheriffs .Departrrient. Californiai
_ .
Highway Patrol; andior, any local police and fire protection,services) will be notified at
. . ,
least one week in :advance, of.commencement otc,cOnstriaction in areas that may be'II
• - . •
. , affected by traffic delayS. , • • II . .
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2 Traffic Mitigation Measure .5:9-413: Where applicable for work in publici
, .
roadWays;;the Agendc),•,Will;•Olitaii-r encroachment oerinits from:agencies:With jurisdiction
over theroadway-S. andWill.cornply•with all provisions of:Such permits including. traffic
. .
. , control and other safety precautiOns to minimize inconveniences and protect the public.
. ,.
._ .
• 3. Traffic („Mitigation -.Measure 5.9a5:. 'Where applicable for work. in outdid -
•,
-•
roadways.,the Agency wills obtain encroachment from agencies with jurisdiction
over the-roadiliiis. and will comply with all provjSionspfisuchpermits.,including. traffid . .
., .
-
. a • control and other,safety predadtions to,minirnize4inconveniences and protect the public.
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PUBLIC SERVICES Al<115.. UTILITIES .
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S ignifitant-Effecil • - -. . '
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. ... • 1, •
• 1. Public Se'-vices and ',Utilities- Ithoact 5.10-4: Construction of facilities would,
I
require relocation of urilitia and/or would.cause';shortzterm interruptions in service for
• lltiiiry custortler . i
-
, - . - Finding . . .
. . .
_ . . . . .
Changes t or-alterations should be requireGI, in or:incorporated into the project which
. '
avoid or suostarftiallv reduce the siknificant- environmental effects' as 'identified in the
Final EIR. . . . .
. .
, .
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Facisllin!,Suotiertlafinding. - . 1 .,
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: - - '.• : . ' . , .
The simiificant:effects listed -aboVe can be reduced-to a lesSi‘thanSiarlifidant level toy
1 • * virrueOr7ilie following,Mitigationi:measures identified:in-the;Final'EIR ibeing. incorporareti
_
.,..... _ - .
• intothe project. - .
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13-8 • '
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_
. . . 536
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• 1. • Public Services and..1.1filities Mitilatior Ole:is:11re 5.104:The projectdesign. and • .
construcitOn details will DC dbOinitiated.With the aporopriateiutilitv coMpanies. To avoid
acidedial service interruptions Underground Service Alert will be-contacted.at least 2d . • .
• haul-s prior to excavation dizzing.: of:trenchirg. abtivities. The;,,dhratiori orconstruction,
. -related disruotions•to utility servieesiWill be kept a minimum and all.services<will be
restored by of each worktiav, Local residents will be notified prior to any1<iliown .
.'sery ice!interruptions resulfingfrom the:project.
. ..
PUBLICHEALTH AND SAFETY • I
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. • . . , .
Sianifieant Effects, - .
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• .
. I. PUblic.,Healthand Safety-Impact 5.1.1-1:The-proposed projea would require the
, _
use or Materials that are ccrisidered,hazaidous aria require special•storage and.handling..
The.proposed!,projecr Would increase the.potentiel for spillaze'of.chlorine.,caustic Soda..
-.and:dieseKftiebWhith would..creaie•a•pubije•health and safety'hazard..
... .
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• . .,
2. Public, Health and Safety Impact 5.122: The operation: ,7of vehielea. and
_ ... . . , ... .,
c111,ipment.for thepronoSed,prOject vvould!!ncrease the potential-for a hazardous materials ,
. .
spill:a hazardous materialspill would create a,public-healtfi'arid-safetihezard:,
' .
Public Health and Safety Inioacr•5112-3::The proposed,projectiwould:increase,the -
potential foredbountering underground ha7ardausmiterials and WaSteS.
Finding •: a . .
. . • • • -
• Clianzes ,&r alterations should. be required in or incorporated into, the -project,which
_ .
.. .
• •
avoid,oMsubstantially reduce the simiifiCant:environmental effects as identified in the - •
Final EIR.
. .
. . - Facts in Suorpori of Finding, . . .. -
.
. . . - • .
•. - . , . . ., . ,
The significant effects listed above,can be?Feduced-.to -a ilesi-t.han-sianiffeant level It'v •
_ .
_
virtue of the following•Mitieefitin measures identified in theiFihal:EIR being incorporated
inth theproject.
.1. Pub I ietieaftfr and Safety Mitization;Measure .5.11,1:,The project.specifications
will:require"that the contractor follow the provisions-of',Sections 516.3 through 5167 of '
the General InduaiTY:Safet-V:jOrders, (California.Code of Rezulations:'Title 8)1tO-Orotett:
_:. ,
. the prole& g:area font being contaminated :by -the 'accidenial release, of any 'nazardous,,. •
...
. . •
materials and/or Wastes. ,Disposal,of all hazardous materials will be in.compliance with
• • the current ,California hazardous waste disposal laws: chlorine and caustic. soda
_ .
. transporters WilEbe,i'eqUired:to have the proper licenses and permits for tfaiispordna such
-materials. Chlorine and caustic soda will be:transported:lin,containers:approved i by the
. .
bepartineht,oftransportationr(DOT). Agency.emhltiVees wolikina'With chlorine canstio. • •
..._
:soda, or othernazardousimaielLiala Will be required to have received hazardous materials
. training imaccordance witit.the Azencyt:sinjuryand-Illness Prevention-Pi-64rarn. Agency-
_... .
employees will be required to use the 'Agency'S•Master Injury.iand.Illness Prevention
Program Manual's procedures for the:safe ha-I-Mtn-2 of Chlbribe. caustic soda or other
. .
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" - i 537
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•
hazardous ;Hate ialsC, The.construction,contractor.will,contact the local fir&agency and
• tne1 Counry Department of Puoiic Health. Environmental Health Division: for any site-
.
:specific reouirements regarding hazardous,materials or hazardous waste;,containment.or •
handling -
•
_.. ;P,ublic.'Health and Safetv,Mitigation Measure =.I2-Z: The project specifications,
• will require that the;contractor follow the provisions of Sections 5163 through 5167 of
' . the General Industry:.SaferyjOrders. (California,Code of:Regulations. Title 8) to protect •
• the project area Rfrom being contaminated by the accidental release.'of any :hazardous
materials and/or wastes. Disposal of all h7araous materials'will 'oe in compliance with
the current California hazardous waste disposal laws. All Agency Operation and
Maintenance employees will continue, to be 'trained. to the Hazardous Materials
• - " Responder Awareness Level in accordance with the Agency's Erneraency Operation
Plan. Members of The Agency.'s,Hazardous Materials:Team will continue to be trained to
the First Responder Operations and Technician Level. The construction contractor will •
contact,thelocal fire agency'ancthe Count6Department of;.Public Health.;Environmental _
Health Division; for-any;site specific reaulrementsi regarding hazard"pus •materials or, -
- - hazardous waste,containment or-handling. - • ' '1.
3. Public Health'and!Safetv'.Mitigation Measure `l 3: If hazardbu's'materials are _ •
• encountered 'during construction activities..'the contractor- will be required to halt
construction immediately"and=notify the Agency s Construction'Inspection Section. The
Agency will prepare Site;.Safety Plan in accordance with,any 're`qujretnents of the'
California Regional Water Quality'.Control Board'(North Coast'Region). Disposal of all
. hazardous materials willlbe in compiiance with,all:applicableCaliforhia hazardous waste
disposal laws.
VISUAL QUALITY • - •
' Significant Effect .
� 1. Visnal Qualitv;Imbact a.l 2 Vegetation renioVal for the project would result ire
-, impacts.to visual duality. '
Visual Quatitr' Impact 3-81 Kawana `Springs Tank No. `2 would result in
impacts to.visual qualiiv inthe surrounding-area: •
Findihe . •
Changes: or alterations should:be ;required in; or incorporated into. the project which
avoid or substantially, reduce ,the significant environmental' effects as identified in the
Final EIR.
Facts in Sunport,of;Findins
The significant effects, listed_above can be reduced to a ,less-than.-significant level byi
virtue of the mitigation measures identified in the:Final EIR':oeina incorporated
into the;pro�ect:,
B-1() 1
. 538
I. Visual Quality:Mitigation .Measure 5.13-31 Areas cleared during construction .
will be seeded and/or revegetated: wne ever possible- Seeding and/or revegetatiun will
also serve to mitigate impacts resulting:from soil erosion and;'impacts to .00ranical and IP -
wildlife resources'- _
Visual Qualify Mitigation Measure 13-3i Kawana•Springs Tanh'No 2 Will be
painted with„a low='gl'oss paint:"in a aarl gieen'color'thatwill'tlend with the surrounding.
. :oak vegetation - - .
CULTURAL RESOURCES
Sisnincant;Effects ..
1'', Cultural Resources,imoac' 5.:154F Grading, excavation_ and trenching required'
for construction .of Collector No 6 could potentially impact underground cultural
.resources.':, - . _
-, 'Cultural° Resources"'Imoact ;5:1:5.2:1 .Minor modifications: at the Wohler
;Maintenance could potentially impact identified cultural resources sites: _
Finding
Changes oc-alterations should be required in, or incorporated into, 'the' project,;which •
avoid or<.substantially reduce the significant ensironmental effects as identified in the.
Final EIR. •
'Facts.in 8uopon:of:Finding - - •
The Mel significant, effects listed above can be reduced to a less-than significant level,.by
virtue:ofthe following mitigation measures'identified-in the.Final EIR being'incorporated'
• into,the project. - • . . . . -
1- Cultural. Resources Mitigation Measure -1 I The project specifications will' -
:providethat-ifoiscovery is,made of items of archeological or,paleontological interest the
contractor'Will immediately cease excavation ,'in the area of discovery: ,Archeological
indicators may include (but'are not limited to) dwelling sites,:stone irnplements.orother _
artifacts animal bones, human bones, 'and fossils: After cessation of excavation the
. _ contractor"will itmediately contact the„Agency-s Construction Inspection Section- The
• contractor will not resunie„work until' authorization is received from the Construction - •
— — .--s inspection Section-_ If archeological indicators are :discovered during construction_ the
Agency will contact the Northwest Information;Center at`Sonoma'State University to _ -
-evaluate the significance of the site prior to resuming any activities thaticould impact the
site: If it is determined that',a;-find is+,unique under:CEQA and/or potentially eligible for
- •
listing in the California Register, and ;the site cannot be avoided,” an sarcheologist'shall
:provide a research design and excayafiba,'plan 'outlining re ov ry of the 'resource,
analysis: and,reporting of the .find The research design `and excavation plan Will be .
:submitted''to the Agency's Construction'.Insnection Section and approved by the Agency
prior to construction being resumed.
. ga._I
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__ 2. - Cultural R'esourc s Mitigation Measure 5 1D'- If cultual, resources indicators
are discovered curing construction activities near the 'Wohler Maintenance, Yara.
,go -Mitigation Measure T� 1 will be.imniementea., If'ttie indicators are connected with the
cultural resources site identified by Srctieolosical; Resource ,Se-vice, a qualified ,
archeologistfwill be reiained`-to(monitor construction to a'oi'd'further:damaae to the site. •
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• 540
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1' .
EXEIT G
SIGNIF.IC.ANT`OR POTENTIALLY SIGNIFIC:4NT
EFFECTS WHICH CANNOT BE .VOIDED
EARTH
, 'Significant Effects - - - •
I. Earth Impact 5:2 The berm, around Collector;No 6 and its excavation area
would ;esultiiq„a,permanent cnanae in'topom-aphy. .
. - Finding. •• -
. S'oecific+economic.JegaL social; technological, or other.considerations including provision
• - of employment opportunities 'for, hiehiv m
traed .workers, make infeasible mitigation
. measurestoproj
rproject alternatives=to reduce impacts to of less-than-significant level -
"Facts. in Sunnoa;;of Findine • -
Because the; berm around Collector No 6"is necessary to provide seismic"support and
'maintenance access;forthe'collector,{and because the.excavation;-is necessary to provide •,
_ _ material to•:construct_the berm and prevent an increase:in water surfac elevation during
.1-60-year flood .events; there• is no feasible'mitigation measure that would reduce this : _II
impactto a lessF than-significant level. .
The;-Boara.of Supervisof fnds.that the environmental;; economic :legal, social 'technological and
other benefits of;me proposed project as more particularly described in Exhibit 0.-attaciced.hereto, - .
outiveith,the unavoidable impacts.
WATER RESOURCES
• Significant Effects. -
- `I: Water Resources Impact 5.3-1: The proposed would' result ih-the use of •.
.
large-amounts or water,' -
_. Finding '
Specific economic, legal, social, tecnnoloeical: or other'considerations, includmg provision
. • of employment- opportunities'. for nignly.-trained workers, make infeasible mitigation
measures',or project'alternatives to reduce itnpacts .tola.,less-than-significant level.
G1
- 541
-Facts in.Sunoort of',Fimm11e; ^
1
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• W Although measures aretmcorporated into the,project to;reduce the amount of water used,.
because;oftnenature'of3he project, there,are;no mitigation,measures.available to reduce - '•
, thisr-signi ;cant impact to a less-than significant level_ ' •
The Board of:Superciitors.-fincisithit the environmental economic legal;;social', technological,and { .
other benefits of the proposed;projectos more particularly described in Exhibit F attached hereto,
and with respect to"Collector No o. as:mor 'parncularly described in Exhibit G attached hereto.
outweigh the unavoidabl'eimpacts.
BIOLOGICAL RESOURCES _
Significant Effects . '
- 1: Biological' Resources Impact :.5-5: Construction of Collector No. 6 and
. .
- appurtenances wouldiesult in;impacts to plant communities and wildlife habitat. -
. .
' - , 2. Biological Resources^Impact $.`S-8: Consttrucdon activities and equipment, together
with an"increasedaiairian presence, would result in,iinpacts'to wildlife species.
- .- :Finding. . -
- Specific economic: legal, socialtechnologicai- or othe`nconsiderations, including provision
•', of employment opportunities for highly trained workers, make infeasiole mitigation
measures or project altematives to.reduce impacts to a less-than-significant level.
Facts in-SuonortofFindind -
The stenificant effects of Impact -5 may be,reduced: to the extent feasible by
• • incorporating the following mitigation measure_
1. Biological Resources Mitigation'Measureu 5-3 The facilities will:beilocated so
• as to minimize`vegemtionremoval:• Wherever possible,,areas "cleared of'•vegetation :during
• construction will be seeded 'and/or"revezetated. ' For each acre of riparian woodland
, vegetation removed an acre of riparian woodland will be.replaced. The Agency will
prepare and implement a recegetation plan. • The plan will be coordinated with the
California Depaivnent of Fish and'Game- as appropriate. Plants selected for revegeation
will peCalifornia'.native species -Planting requirements:in'the'revegetation planrwill be; .
oased upon species composition aria densities within the area to be_impacted'- At :ai
ni
minunum,.a replacement ratio or":.:1 will beused,to::replace all native;trees removed that •
are ove. 4..incnes diameter;breast height_(DBH), although higher densities may be used;
depending on the type of haoitat impacted. The final revegeation plan will include ..
. deailsrregaramg planting, implerrientation, maintenance, survival rates, and monitoring;
plans and.,schedules.. Maintenance requirements;may?include, butrwill not`be limited to;l
irrigation: ;plant replacements; weed control- and' protection from herbivores: They
- . ;evegetation;plan will also include'5 years of mitigation monitoring Mitigation will occur,
as near as possible to; the impacted area: .
• �
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542'
1
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•
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In addition. the sianificant impact .Ofrittipact 5.54 is short term. and Will, cease upon. -
.. .
comoienorpor construction. However, there are no other mitigation measures available
to reduce these•sinnificant impacts to less-thanisinnificant level's:
. . .
The!Boattiof Supervisors fines that the'environmental,,economic,,, legal,,:social. technological:and -
. jother,benehis.of the Proposed project: as more particularly described in.Ekhibit7F ittached,hereto,• ... .
and with respect to Collector No 6„as more particularly-descrioed in Ekii. ibit C artitiiechheretc,.
outweigh thejuriavoiLibic imi3acts. - .
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NOISE •
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' .Sinnifitatit!Effeetsi . • -c . ..
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Noise"Impact 5.7-2: Construction activiiies'•and equipment'Would,neneratemoise
in the project:•atea. . . .
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Finding . . . . • . . •
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SpeCiiic economic. legal sac al techribibniCal. or other considerations InClUainn provision
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. .. ,
of employment opportunities for highly 'trained-Workers. •make:infeasible' -nitination , •
...
measures orrproject alternatives-to reduce impacts to a less-than
. . . - •
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Facts in,S upoorttf Findirin • - . '
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The i siziificant effects may be substantially',reduced to the extent feasible by in-corcloratitin
, . .jj: • - • the following minnation_imeaStre., However,. snort-term .construction ..noise is ,an
unavoidable impact of therproject,,although the proposed mitigation measure would reduce: .
the impact to less-than-siznifica.nuleVels',in most LaSeS.
. .
Noise Mitigation Measure:57'42••.• The project specifications'will require the
contractor to confine eons-Mdetiati iactryirsi. cii• Monday thituth Fridayto the thours •
. .
between 700 &m to 700 p.m., on Saturciay from-,8:00 a_nr. to--5:00'p.m. and/..to prohibit-
coriStb.Hciibt on Sundays:0T licilidays. The project specifications ,Will,alsticrequire that all
•
. . . .
equipment,and vehicles' used for construction will be ,maintained• in _good,,mechanical]
condition and haVe.ertgine mufflers installed.
. . • . .
The Board of Supervisors fints,that,met'envonmental,'economic,Tegal, social, technological and • .
_.. . ir
othereberiefits'of the•tiroposed liroject as more particularly described in Exhibit F,atiaChed;hereto..
•
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and widnespect to Collector No 6',.,a§:more.pa:rtiailail:itdekribed.in Exhibit G[at-Maned 'nereid: •. _
' outweigh rhe ithavOidabie irripaCts. , •
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' ENERGY • ' ... . . .
• • ..,
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•
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S inn i il cant'E ffeets . " - . • •
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Enernv•Irriliact 5111-I: The proposed project would result in an increase in energy
.
- - use. • •
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• • . 543
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Finding
Specific economic legal; social, technological or other considerations mciuding provision
of employment 'ooporiunities far,'nignly trained workers make li-ifeCsible mitigation
measures.on project alternatives to r euce impacts to-a.less-than-significant level.•
' .Facts:in.Su000rrt df Finding'
• Tqe significantefi_ects.mav+oe substantially reduced to the extent feasible by incorporating,
the following;mitigation measure. However; this mitigation measure is not expected to
r
reduc_'the impact to. a less-than-significant level_ ' - .
1. Ener°V Mitigation Measure i
i 1- 1 .To the extent possible, the Agency will
continue to use WAPA energy-as available and PG&E energy during off-peak demand
periods to,reduc .ener_ycosts and:'to allow P.G&E to;maintain a`larse'- margin of reserve
- power generationi.capacity. In 'addition,.energy efficient equipment-designs or enersv
saving devices will be:usea wh never possible for additional`^enerw savings.
' The Board of Supervisors finds 'environmental economic legal, social1 technological and .
other benefits of the proposed protec ashore particularly described in Exnibit.F attached hereto,
and with.respect'to CollectorNo'. 6: as more particularly described' in Ex.iiibit G attached hereto.
• outweigh the unavoidable. impacts. .
I VISUAL QUALITY. ,
• Significant''Effects
1. Visual ampact-5.i . Tne'.motor housing;of Collector No.;6 mad result in impacts
• to visual°.cualitv,: "
- V".isual Im 'pact.5.1n ;Additional diversion facilities may impact'the visual qualitv i _ '
• - of thesurrounding;<arca,
,I,
Visual Impact 5.1-3-5:Cansthuction' activities for."pipelines,'tanks. and booster; .
pump stations would result in impacts to visual "quality:
4. VisualiImoact 5.1..:.i.;8: give nes would result in!impacts to visual cuality if thel
pipeline. is'. located in!areas.ofdense.ltmature vegetation..
Visual impact.;5.i Water storage tanks would impact the visual cuaiiry of the '
su'rroundin o.:area: .
6., .Visual Impact''-5 'r9. Booster pump stations would siigntiv,change the visual'
landscaoe`in the surrounding area.
.
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544
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Finding . '
, 411
Specific economic:legal, SPOial, teClthological., or other considerations, inChiciingTro,viSion
. of employment opPorrunities for highly Pained worieeft; make infeasible i Mitigation
Measures or project alternatives to reduce impacts to a less-than-significant leVel.,
. .
FaCtsrin,Sopron of Finding ,
. .
The Sialifi cant effects may bersubstannallY„reduded to the extent feasible.00incorporatirig
. .
the fcillowing,mitigation Measures. . . . .
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1. Visual JOualitv.ivliti2atiOn,Mv-shre,5.13-3: After totisn-uction of Colleetbr Nd.P.
- .„.
the ;Agency-will .verify that the pump.house is not clearly visible from the 'pablic,
viewpoints, and that the visual impact remains less-than-significant If the motorlpousing
. is Visible,, it will be painted with a low-gloss in a color that blends in with the,
..,
. : - surrounding,vegetation. _ -
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• . 2. . • visual OualirV Mitigation Measure'5:134: Diversion facilities beSideS Collector . .
' .*. No.:. 6 Will be ,located andy,copstruCted in a manner that minimizes yisuaLlrripacts.
Wherever feasible, diversion facilities will be located- below exposed ndgelines or
naturally :screened from View by existing topography and/or -Vegetation. Additional
measure to minimize visual-impacts:mayinclude: ahlarchiteOtaral buildingifstyle designed _.
to.blend:withjother buildingsthf the area; buildings with unpainted concrete or maspitry.
ora:lbwraloss:paint that blendsfwith.the,surrounding environmentsliarid'Vegetaiiont-pianted
:so that the structure will eventdalliiise screened or partially screened,from view.
0
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. - . .
• - ' The 'proposed mitigation, measure is expected to reduce. the impact to a less-than-
significant. level: howeVer,. it may not reduce it to a less-thansignificant,liVel for all
viewers. Potential impacts of these other diversion facilities will be 'discussed in-funire
environmental documents when thelocation.of such facilities is determined. •
: - ., . - . . ' - .• . • • . .
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3'. , :Visual Quality'Mitigation Me.agtrei5:13-6:Wherever feasible the Agenc;/:,will • .
design, pipelines to be located in existing public right-of-way, and to minimize the
rernoval,ot g
'veetation. • •
_
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The ,proposed mitigation measure. is ,eXpfeci• to :reduce the /impact to a less-than,
significant level, 'howeVer, it may not reduce, it to a lessthan‘significant level for all - •
. -.
.,_
,viewers. - • .
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.1..
Visual Quality Mitigation Measure 5.137: Tanks will.be:located and constructed
in a manner that minimizes visual,irribactt „WhereVer feasible, -tanks;will be located
- • ,below.exposed ridgelines" andior naturally,screened from view by existing ,thocigraphy
and/or vegetation. Thelfollowing,:.measures will be implemented, as:thiplieable, to farther
minimize ithpacts•to visual.Ohality::Water storage tanks will be cOnsthucte& with a low
.. .
profile or surrounded by an eartheniperrn for camouflage:. tariks,will be painted ,'„vim a .
low-gloss paint that blends with the surrounding environment; and vegetation will be
installed so that the tanks will,eVeritually be screened or partially screened from VieW. '
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' • - : 545 .-
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0. she proposed
Ieyemitigation measure is expected tot•reduc the :impact to a less-than-
The r000sed
_ 1 However it may not reduce it to :a,less-than-simiincanr level for ail
viewers
•
c ,MikiaI•OualitY Mitigation Measure 5:I'. o "Booster pump Stations will be located •
and;:conswucted in a mane tnacrnitiimizes visual impacts. Wherever feasible ,structures
will be located below: exposed ridgy tins:. naturally screened from view by existing •
topography and/or vegetation. Th°� following measures,' will be implemented, as
applicable. to;_further;minimize'impacs to visual quality architectural style of buildings .
will'oe designed to blend with>othe , nuildings in the area:"unsightly equibment will be
surrounded'by•chain-link fencing witn wooden slats; buildings will be either unpainted
,,,rmasonry or•will The painted with .a. low gloss paint;that blends' with the surrounding
■
environmenc,and.vegetation+will be insaIled.so that each of theistructures will eventually . . •
be screened or partially sc-eened' from view. The proposed; mitigation measure is
•
expected to reduce the impact to a,less dhan signi icant.`;level, however; it may not reduce
it to a less-than-significaht level for all viewers: , -
. ' " The,Board of Supervisors finds'that•the environmental, economic; legal asocial. technological.and
- ° -. • otherbenefits of the proposed orfoject_+as•more,particularly described in Exhibit.F attached hereto,
and with respect to'Collector No 6, as more particularly, desc bed,in Es}irbit G attached hereto,
outweigh the unavoidable impacts. yy
RECREATION: l
.
S ignincant Ef ects •
I. Recreation•Impact 5 fd-T: Increased releaseswould result ih-an increased number `
of month's that ltheiiWannj.SPrings water ski a at Lai etSonorna would be closed. -
2 Recreation IMO-act-5:14-2: Increased releasesswould fesulfin'an.increased number
of months`that the Y bms.Creek'Boat Ramp would-be clbsedr .
3. Recreation 3moact 5.14-3: Increased •releases would result in impacts to the
operation;of the Lake:Sonoma?Marazina.
' 4. Recreation •Imoact•5:14-: Dunne. critically dry years, `increased'releases would '•
result in reduced fishing onoorruniti s'for'rainbovetrout. -
"' • 5. Recreation Impact 5 I4-.6 Consrruction activities ih'#the-Wohler area would,disrupt
recreational'activities'in.the,,area throughout'the'corisauctiotf period. - .
I
Finding, .
•
Specific economic legal!:social;'technological;,or other.considerations. includingiprovision
, or emplovment'opportunities for highly trained workers, make infeasible mitigation
measures,or project alternatives`to reduce impacts to a lei-than-significant level. '
iip, •
. C-6.
546
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Facts in Support-of Finding
•
Because of theinatureiof theiprojectthese impacts are all inherent m the proposed project:
therefore; there are nomnitightiOrymeasures available•to reduce these significant impacts
to less-than-significant levers. ''• , . '
• . •
The Dra&E.IR:Cdentified:a_sithificant and ithaVbidableiadverse impact to ihe'Yorty Creek
_ Boat Ramp as,a-,result of the'WSISP; this impact remains in the Final ER The option
,-.
of adding,pdrtable:boatc,rampstoiextend the Yony Creek-,Boat,'Ramp was evaluated '6Uring
_ •
, - •
preparation of the Final FIR Because Eake,Sonorria is managed by the U,S. ArrnYZCOrps
of Engineers,.the installation of portable boat ramps would need to be itnpjetriented;by - ..
• . the Corps: The Agency contacted me Corps at Lake Sonoma to determine whether the
,
Corps would consider extending the Yorty-Creek:BoatRamp during low water elevation
conditionS. The Corps Staff,at Lake Sonoma.indicated the Corns Wcitild'not be able to
, - • . _ - • _
Pring :ramps in to keep Yony :Creek, open,during_ low water supply conditions due to
budgetary ancilmaintenance personnel constraints:
_.,... : . . .. .
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Th e.Bo_ d of Sup ervsorsfirci- hat'the environmental economic, legal social teainalbtical and . .
' - dther.beefiisotithe'plcipOsed;prOjectasIindi-etarticUlarly,described in ii
Exhii•riF.iattidheii,hereto,t '
F,
attached
the unavoidable impacts. The•Board further finds that, with respect to Impact
the environmenial' economic, legal, Socialitechnological and other benefits',of'the' proposed -
project, as rridie particularly described' in :Exhibit. &attached hereto, 6utWeig'nthe5tinavoidable
irripacts.. : . .
CUMULATIVE IMPACTS • . 111W
. •
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The WSTSFIFinal',ER incorporates a purpose of the previously approyed:RussiamRiyer-CotatF
IntertieiRrOject Collector No 6. Therefdre:ithe:,cumulatiye impact analysis in the Final HP. for •
the:WSTSP also addresses the cumulative:Impacts'that are expeCted to iresult from Collector • .
. - . No: 6. . . . ,
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•S i sinifieint'Effects ' _ .
• • • . .. . .
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I. Cdintilative,imoact 63-i The WSTSP.cortibined With past. current and future
related projects sin the Russian,Rive r watershed has and could substantially alter surface
„
. Mpo.graphY and increaseisoil erosion.
, .
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2 - Cumulative Iinoacti6ii3=I: The WSTSP4in combination With past. current and. .
. .
futdreirelated prdjects, including-urban and Ysitibuitiair develoornetiriand;azriculture, would
result in the use of large,iartiduritS,of water and would substantially'chinge streamflows •
compared to pristine conditions in Dry• Creek'below 'Warrii Spring's Darn and in the
Rusin River, particularly-during;theidrY Season. .
. , •
. 3. ' CumMauve-Impact 6,3-4:, iiiseofWaterifOrthe WSTSP, and other related projeCtS • .. .
, ,•
would preclude usemf that water or incur additional costs for other entities which might
utilize that water in-the hint:
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. = ..:Cumulative Impact 6.35: The WSTSP' in combination withiselated projects'Isuch mt.
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as urban and suburban,deVelopmenticouJd,contribute;to increase rares,of runoff in the WV
RuSsiani.Rier Watershed and potential flooding impacts. ,
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C-7
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5. cut-finial-I've Irrinactl-6.3t6: Trie WSTSP iii combat- atiodWith related,onderrts could .
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411. . ., -
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result in increased siltation-orj waterways and less-diliitibn Of-,polifitantS7ni the Russian • . ,-
downstream.of Jyrirabel: • .
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6. Cumulative hnnactr6.3\-7: Irnolerrientation or related projects and construction of
the WSTSP could degrade air cita.lit-y from the generation of fUgitive dust, from
construction vehicles emissions aria from other air,pellidar-it generating activities. •
7. Cumulative ihimact. 6.3-8: The WSTSP in combination with 'related projects
would result in the removal and/opidistarbanCe:.6f-Vegetation and wildlife habitat in the, •
R
i a
Russian iVer wtershed. -
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8. Cumulative Impact 6.3-10: The WSTSP in combination with related projects
.would result in 'imbadt-SltO,fistieries and aquatic resources. •
. . .
9. • Cumulative Impact 6.3-11: The WSTSP iw combination with related projects
- • -could raise noise levels in the(Specific area that the WSTSP project facilities are being.1 .
. . constructed or operated: , l'
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10. Cumulative Impact 6,3g2: The. WSTSP in -Combination with related' projectsi
could result in changes to existing land uies. _..
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- 11. Cumulative In-tract 6-.3-14: The WSTSP i iw-Coiribination with related projects • . t
would result,in the use of substantial amounts of fuel gnd electrical energy.
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12. Cumulative Impact 6.3-i16. The WSTSP Water Production Facilities at the i ,..
Russian,River-imcobibination with related-proiectslocated along the Russian River could. .
result in cumulative yisgal:iiinpacts:- . .. ,
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13. Cumulative Impact 6:3-17::-The-WSTSP diversion''fadilities pipelines, tanks, and
..
booster:pump stations lh,combination with related,plbjects,could result in cumulative
. ., . .
, • .
. - • visual impacts.
, .
14. Cumulative Ii-npabt :6:3,18:- Thor-eased releases from Lake Sonoma to satisfvl
1
demands of theiWSTSP, and other water diversions while maintaining. minimum'
streamtlows:would-impact.hrecreanotial cusesof taite Sonoma,
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15. Gurriulativelmnact6l3J-19: Duririg,•criticalitindry years, inc-eased edireleases,from
. ., . .
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' Lake Sonoma, to satisfy the '-dernatids Otte WSTSP and other-water,diveraibriSitWhile
maintaining. minimum streamflows. could result in iredueekt fiSnitfer opportunities for
rainbow trout iii‘lake,'Sonbrila . .
. . . .
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16. Cumulative Irtmact.6.3-.20: The WSTSP in,combination with related projects' '
, .
. . ,
could result in significant impacts to recreational users along Dry Creek and the Russian
. ,-. .
River.
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17. Cumulative.Imoact 6S21: Cumulative impacts-to,oultural resources have already
• - - - .
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- occurred tiornpasyrelatetr,projects. Ground disturbing and land clearing activities for the
.
. WSTSP and other related projects could also to cumulative impacts.
_
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C8 • • .
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548 .
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•
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Finding
I ,Specific economic, legal, social, technological, or other considerations, including •
provision' Of employment opoorninities for mghiv+trained workers. make infeasible.
•. mitigation:measures or project'alternatives',to reduce impacts to a less-than-signmcant
•
•
2. Changes or alterations which avoid or'substantially lessen the significant.,environmental
effect as identified'in`tfie F nal'EIR,are within the reseonsioiiity, and iurisdictton of other
• public agencies. Such changes can andshoula beadopted by such other, agencies.,
Facts?in:Su000rt of Finding
•
The significant, effects may be. reduced to the extent feasible by incorporating the
following mitigation measures. .
•
•
I. Cumulative Mitigation Measure 6 -1: Mitigation measures for.imoacts caused
by erosion may include temporary erosion control measures such.as•:silt-fences and _ . .
-
straw bales placed along the'base of exposed.slopes, around sun-ace'water-features,„and
aroundisite margms and';revegetation of cut?slopes,with annual grasses'andJor';legumes:and
long-term erosion control measures :Such as revegetating :areas disturoed, during
construction:with California native groune' cover olants shrubs, and trees. No mitigation
measures are'ravailable for implementation':by the .agency for impacts'•related to'changes
in,topography. .
z. With respect to.CUmulativeimpacts,6 6; 6.3-6, 613-',7, 6 8;-6.i-10, 6°3`iI„
-• 6:3•12 6 3-17 and 623-21 ,,review by planning and other regulatory agencies. r as
implementationlofresource enhancement activities and;programs,:may result in conditions
lessenina.impacts`burnt to a less-than-significant level.
The Board:of Suoerii's ffinds that the environmental, economic, legal,, social 'technological and
' _other benefits of.the proposed,project asmore particularly aescrioee In-Exhibit Frattachea pereto' _ •
•and With respect to;;Collector.No 6, as more particulariy'described in ExhibirC:attached hereto„
outweigh the unavoidable impacts.
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• C9
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549
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, c..H1
ALTERNATNES
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Prciiett ObjectiVe: -The 'Objective of the: Wa.ter Supply and transmission: System Project
(WSTSP), as listed in(Chapter'*:,"Project Description.- of the.Final LIR. is to 'pro Vide a:safe. • .
economical. and reliable water simply to meet the ciefined1fUtnre needs;in the Agency s service
area. .
• . ,
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. . .
_ .
As:described,in Chapter 7, ''Alternatives:-::of the Final EIR..thelAge`acy considered a broad range .
. .
of alternatives, includiner the No Prbiject,;Aiternative:;and Condluded that norfe of the alternatives
could feasibly achieve the project objective while'reducing impactS. In addition. the .Agency •-
considered a numben,of alternatiVesJO'both thtlocationcand construction of Collector No 6 and ,
I -
to ihe location OfKawana12-SpringsTaiik'No..2.- Eadh,alternaiii/e'iS described in detail in Chapter
.. -
. 7 of the Final EIR-and is briefly identified below along with the reason or reasons Why it couid
not meet the project objective-while reducing impacts,
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Single Componerit,Alternatives 1 .,
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•
1. Water Conservation. 'The Water "Conservation alternative would Consist Of
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I
• implementing one of two. water conservation progrsms. Program One would consist Of
I
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implementing-. 1.1 selected Best Management Practices (} v1I3S)l described in .Chapter 4 "Project
. . Description.): of the:Final 'EIR'. and in greater detail in Appenaix :1,1.: "Water and Was-Lev:varer ..
. ..
' Efficiencv/Avoided Cost !Siudv:7; in Voinme V of the 'HR. Program Two would consist of
. .
. - implementing the Program, One conservation rnelsures: listed above plus two additional
conservation measures which are Mobe:agg.ressivecand'aotbevond current BMPs. The"additional
measures consist of amapOliaricedribentive program and an irrigation advisory serVice.
. „
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The Water:ConservatiOn,.allehnative alone could not cfeasibly attain ,the project objectives. of
meeting thedefined-future,rneedS:inirthe Agency's service area Program Conservation would
..__ I ,
,. proviae.-,only about 6.600.€acreJeet, per year (ARV) and Program Two Conservation woald:
,
1
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provide only•about:9400 A'FY:. Neither amount of water is suffidienvto meet the defined future
„:.
needs and individual water contractors would need to seek additional: water supply sources to .
10. ' !' supplement current entitlements orovided1by. the Agency. Ih,addition: thistaltemafive would also
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550 '
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result in adverse.socio-economic impactssimiiartoitnose described below?hnder the No Project .
Alternative.
Finally. [with respect to Program. Two at the time the Draft EIR was r leased"., the appliance
incentive program wvaa not readily, available;and was significantly more ekpens'ive. "therefore„
such a program would'have required substantial fiinding:on behalf of the Agency or its water • . -
contractors to make it cost effective for consumers. During preparation of the Final EIR. the
washing machine rebate,program (part of the appliance incentive program) was still notereadiiy
available or cost effective: however, since then these washing machines_'have become m'o1-e ,
available. and the program has become more cost effective•and the Agency has since begun •
implementing the program in cooperation with:PG&E to'theextent feasible. A:-system sifnilar.to
the irrigation advisory:' service already exists 'im the Agenev's service area. "therefore. .
WM1
implementation cifithis program would>be redundant: - • -
•
.3i. -Increased, Use of the 'Russian- River Project` This alternative would,consist of-Me
coordinated operation of the existing Coyote,Valley.Dam/Lake Mendocino and Warm Springs
Dam/Lake Sonoma mucn as they are now.;out:to satisfy greater demands. Releases from storage •
in Lake Sonoma would,be,increased`as needed-to meet WSTSP demands : No_demands:would be
_ met through water conservation. The releases from Lake=Sonorna would be conveyed in 'Dry '
Creek and the Russian River to Agency diversion facilities and pumped into the transmisiOn
system and-transported to customers in southerna,Sonoma County and portions,of Mann County.-
This alternative •would require improvements'to the Agency's transmission system,Jincluding
diversion facilities„'pipelines:;storager;tahks. and';pooster pump'stations, similar to those described
:imChapter ".Project,Description,"of the Final E'IR.
' This alternative would meet the project'oojective.of serving future!demand,'ha-We/et;"withouta
^water conservation component. it would require additional releases from Lake Sand-MA in excess
;(by aooroximatelv6.600 AFY) of what would be released for thepr000sed project thuscausing
greater:fluctuations in the water level.at`Lake Sonoma. These impacts',to the ,wate=-4evel at Lake.
Sonoma, while not significant when compared to the impacts of the proposed project would' not
avoid or substantially lessen any of the:significant effects of the project.
D-Z
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551
3., Groundwater`Resources!.` .Aquifer Storage,arid,Reedvery (ASR)` This alternative
• • -would consist.of itt(plementing-an ASR grogram to me ..the defined future•needs in the Agency's
service area Under'the ASR program.,Agency(facilities iwould diveri surface water supplies of
the Russian River at times of'hialy flows (yovemger-iN'lav) and inject them• into the groundwater.
basin underlying the,Santa Rosa Plain! Signtiicant.new diversion facilities would be necessary to
'take advantage of brief periods'when flows'in the Russian;River are high enough to divert surface
water to groundwater storage: and to re parse;groundwater storage after proionged use of
groundwater durtng;a;drought. Numerous wells:,housed in-small buildings, would be necessary
+'" to -inject and extract water toi:frorn.the,aquifer' in the Santa. Rosa,Plain:- Chlorination and pH
control (corrosion control)', would also'..ce necessary. Large capacity water storage tanks!
additional booster, pump stations.:;and !improvements •to the Agency s existing- transmission
. system similar to-Mhos describediin'Chapte "Project.Description," of.the Final EIR would also
be needed. .
•
This alternative would meet the project'ooiecnve. however.'itawould cause•severe•fuctuations of
groundwater levels: have a ,greater potential for :soil erosion.:and .land subsidence than the
proposed project ;increase,the;potential for water aualin impacts due to increased soil erosiod.
and have-a greater impact on biological,and cultural resources-,,air•quality.:.noise, land use traffi .
public health and safety- and.seisualaquality than the,proposed;oroject because of its location:in the -
• Santa.Rosa Plain. Therefore:,this;alternauve would not avoid on substantially..lessen,any of the
• significant effects of the;pr000sed orojecrand would to ,act;,have,more significant.impacts than .
the proposed'project.. - •
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4. Groundwater 'Resources! - Conventional Wells: This alternative would rely on a .
system-of about 28 wells co"n■entional groundwater wells in the Santa Rosa Plain to meet the
defined.future needs in the A§enev s seryic -area: Each well and pump would be eouipped with
above-ground motors:housed in small buildings :and the wells: would be connected to the .
transmission system by a pipe. Water pumped from the aquifer would require a treatment
process' similar to ASR. Tanks- ;booster pump stations- and improvements; to the Agency;s
transmission system- similar,to those idesc ibed;in chapter 4_"-Project,Description of the Final
EIR would also be needed.. -
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552 • .-
This alternative Meet ine projett,objective, however; it would,result in a severe lowering
of groundwater levels and would increase the potential for land subsidence in the Santa Rosa
Plain. Thus this alternatiVeiWbnIci:novavOid or substantially lessen any of the'Significant'effects
of be prOjeciwhile Meitinadhe project2Objectiye.
No Project: The No Project, alternative would consist of conditions prevaiiing.iWhen.
Agency diversions and re-diversions,areat,the Maximum'level:currently authorized by,SYIRCE
Decision 1610 and all facilities previously approved aa"patuof the Russian River-Cotati' Intertie
project ;have been constructed, including Collector, No 6. Deliveries .by the Agency would.
gracuillv increase tcy'75:000 AFY and, then remain at that level through the foi'eseeable, future. .•
There'viould be no :change in the .Agene:/s existing operations: and no attempt to obtain': or
_ provide additiehal-WaterraoppIy to meet the defined' future needs, in the Agency's service area
beyond:75:000-,AFYI -
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The No Projeci.alfernatiye could not feasibiy.aftain the,project,objective'been:Bei it Wonld not •
provide a water Supply,Stiffibientto Meet the defined future needg'in the AgefiC■,/, iSe:rifiarr. This
alternative would also have significant socio-economic impact.g as described in the'Final EIR
• Volume IV, Appendix I f3y'2067., demand is projected to exceed reliablesupply',Under the No
_ .
- Projectralternatiye,and Agency customers woularconfrontia'witer supply Shortfall!,1, While some
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Agency customers could supplement their'existing entitlements with waten'froin Other 'ioinces,
suchms g:rbundwater.-and'''Scime savina could be achieved brimplementinufwater conservation
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rheas-Urea, such sources are limited. For reasons ;stated in the 'Statement. of Oyerriciifig..•
Considerations the Board finds that adoption of the proposed project is appropriate,andiwoi.ild.
best accomolish theprojecr?stobjective:aespite:ah3f. aci\;.erselenvii-dnmental impact'associated with
the project:
• • .
Combined Component Alternatives
1 Alternative A-I: This altemaiive would combine Water,ConServatipn.,use of .the
•
Russian River:and ASR and is the same as the propbsed projedtiexcept it induces utilizing ASR
By 2007.-i'dernand1sexpecteci to exceed the 75.000 AFY isrcarrently allocated r.o divert annually. Peak:limits are
anticipated to be exceeded sooner due to transmission system capacity problems! .While 2007 may seem far out in the tar*,ore '
muse az:Deaf:for the inc it lakes ror prepantion.of an env ironmeatal document.Procect approval.aesien.,ana construction before a
project zeinPe built.
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553
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for an emergency and standbv‘water suppiv source. Water,would be:divened from the Russian
•, River during the period from _November,to May: throuvn the Agency;s existing and proposed
diversion facilities in the Wohle: and viirabel areas and then'transported through the Agency's -
existing and proposed transmission'system pipelines to be infected through a system of wells into
the aquifer below`the Santa Rosa Plain_ This Water wouldbe pumped from the aquifer during-
emergencies and would not result in the oelive^,:.of'any additional water to customers beyond
. that described in Chapter .t '`Project 'Des r ption f of the Final' EIR, Additional transmission '
• system.facilities acilities would be needed forthis componen[ inclu ding about 20 to 25 wells that would'
be able to inject:(store)'watee'into. as well as extract,(recover)'water from. the-groundwater basin.,
The general location of thegroundwater resource area would be'the Santa Rosa Plain. �.
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This alternative would meet t e project.ob�, tive. howeve-. iCwould•,have a greater potential for-
soil-erosion than the P r000sed, project:, may result in land' subsidence in the Santa Rosa Plain', j .'
would increase groundwater flub-Mationsiin the Santa Rosa`P,lam' would have greater impacts to
biological resources and air quality than:the proposed project because of;its location in the Santa
Rosa Plain, wouldehave°a greater potential for impacting cultural resources since construction:.il
activities would increase 'in, the;Sanfa'Rosa Plain and would increase noise: land use traffic!
public 'neaith and safery, and visual quality impacts. Therefore.,this,alternatve would not avoid:
_ or substantially lessen ■any of the significant effects of the project'.while meeting the project
objective. ` .
.
2. Alternative l -1: This alternative 'would consist of Program One conservation!
Increased Use,of`Russian River: and:conventionai wells;to'extract groundwater from the Santa
Rosa Plain for an emergency and standby supply.. The facilities required for the Conventional
Wells,Comoonent of this alternative would oe,similar"to'those needed for the ASR'Component of
. Alternative:A-.l:
This alternative would' meet the;oroject objective; however. it would haves greater environmental
' imoacts;than the oroposea':;project;because it includes a conventional;wells component. It would c
also have sa greater potential for soil erosion. greater impacts to groundwater and land subsidence: .
and ,greate air'quality biological resources, noise land' use traffic.,public health and safet<I
i
visual quality, and cultural resources'' impacts; than ,the proposed project. Therefore, this
ll•
D
554
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alternative would not avoid or substanualliiilessen any of the'Sithiiiicant effects of the project
while meeting thecproject dojeCtive. 4111-
3. •.klte-r-nativeD-1: This.alternative'woUld consist of the Water:eonservation,Component
and the ASR COMponent. This alternative would be similar to the ASR Single=corrincirient
alternatiVe..eScept this alternative includes a water conservation component rt6]teduce or offset
demands by•6.600 AFY. This alternative would require acDroxirnatelv 6D ASRWellS'aiir the Sarita.
Rosa,
Plain and threertibHibur Ranney 'collectors at the Russian •RiVer. There.'.Would be no
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provisionSloremergeridy,or statidliy-simPly; '
This,alternative.would,theei:the preject,objective, however it would have'greater environmental
impacts than the proposed project because it woUldirequire ASR water production facilities in the .- •
SantaRosa Plaiã as well as'additional'Jacilities!at the Russian River It would'haveita%greater .
)Ptential'fOr soil erosion,' greater impacts to 'groundwate and land•-subsidence,.and greater air.
qualirv, biological resources. libite, Vishalatiality. land use; traffic: public health and.,safety, and
• •
cultural resources: Therefore. this alternative would not avoid or substantially lessen any.of the
Significant effects of,the'project while meetinz the project objective: •
•
4. ,Alternative E:1': This alternative would'consist of a.'Water Conservation:Component
' and a Conventional' Wells Component in the Santa Rosa Plain as the-primarl. water sunolv
•
source. The facilities•needed would be theisame.as those necessary for the .single-component" •
. - • • •
converibbnal wells;alterriative. TriiSaliernative would:rely ort the groundwatersisolirbet of the
Santa Rosa'Plain to Meet defined future needs in thei,-Agencs service area and no addiionai •
RuSSiani,RiVer Water would be diverted'beyond:What has been previously approved There would .
be nap-revisions:for emergency or standby supply.
• •
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This.alternative would meet the project pbjective, however_ it would increase the potential tor -
land subSidencedin tbe Santa Rosa Plain because drawdown of groundwater leVels in the' Santa
Rosa Plain would be,gteatet-and would cause a Significantlowerihg efigrouridaten levels in the
Santa Rosa Plain. TherefOre this alternative would not avoid or subSiantially lessen any of the
significant effects ofihe project While meetingrthe'Orejter objective.
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555
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• Aliemat117-es•Ecillemr. — : '
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1. Alternative: No liec(Collector-without bernifE1fthis alternative is identical to the
. '
proposed project except that:the,CtilleetorNO.'6 pumbilaifse would be supported 'ovihe collector
well caisson and the berm would, not be .placed around the caisson. This alternative does riot:
include the excavation areas,,included .in, the preferred alternatiye. The Rannery collector would
. . be similar to the Agency',S.existing collectors• 1,.■io. 1 and No 2. Toe mimphouse would !Del
1,
construCted at the top of the concrete .caissons. TranSforrners and other electrical equipment
would be placed either on-top,Of Or inSide,Of'the pumphouse building: as oppose d to on the!
ground et to,the•pumphbuge in the',preferred1alternative.
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This alternative could feaibl V1attaip,the project objective,and it may result in somewhat reduced.'
environmental impacts' than the 'preferred alternative because it wouid not require the
1
. _. construction of a berm. HoWeyer. because this alternative-would not have the seismic stability L."- ----
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provided by the berm.. it maY. increase the susceptibility•of Collector No 6 to earth-shaing forces
during seismic events and mai/.result.in an increase in visual Miality impacts to Viewers in the
Y-
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immediate vicifiity ofthe-collector1 • .
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. _ Alternative, •No. 2 (Conventional Wells);; This alternative would substitute
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conventional groundwater wells for Collector No I .6.;.and'would.require approximately 7 to 10
,
conventional wells to achieve,the,desiredlcapacir/Of:20^,mgd: TherWeils could be located on the •
Agency's property north. of Wohier Bridge or they: could' be located at any of the alternative
.,- 1
locations for Collector 'No. 6. Power' would be supplied to the wells via overhead and
I
underground power ;lines. Excavation of brOad, relatively Shallow; depressions in the flood
terrace df•iihe1kussian RiVeb:, slightly larger or deeper than those of the preferred alternative. . .
would prevent an increase in the water subfaceelevation cubing a,•100.-Lyear flood. Excavation1or
a slightlYi larger area or excavation to a slightly greater,depth Would he necessary since this
alterhatiVeti.Votird!include tc.720 earthen mburidstfor1the'ele-ctrical platfotins. Connecting pipeline
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_ The proposed project and preferrecitalthni:ttive,fOrtailectbr,No:8..33 desarthed iii Chapter 7:-Alternatives.of tfe,Final SIR. is
Alte:nativc No hi(COliectot:Cyitil bar*
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Agency's property. in 'the Mirabel area_ .on the west side of'ttie Russian River. The collector
would provide water fo:the-Santa Rosa Aqueduct via'the,Agency's :existing Collector-No. 3: A .�
pipeline would be constructed to connect Collector No 6 to Collector No 3. • Power would be
• supplied' via the' Agency's existing Mirabel' Suostation- An °above=°round poweriine would..
•
connect the;collectorto the substation..
•
p p o the
Tnis,aitemauve was not selectee,as the reterrea' alternative because of the ,proximity t
existing collectors in the Mirabel area. A'c"ollector'located in.this.area would:likely have to1'oe
pumped at'a lover rate (approximately-10 msd)ytiian the collectors:at the other^lodations to'iavoid •
impacting the pumping capacity of the Agency s:'existing Ranney.collectors:, Ther fore_ this
•alternative would notmeet:the puroose:of Collector No o which is to provide 20 imsdwof standby;
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pumping caoacitv.,.Intaddition_ a;collector.:at;this location would`be more:reliant oni'the operation ,
' of the Agency s existing rubber diversioh earri,iiecause of,its,proxiniityto other-,facilities-and,the ••
fact that it w,ould''oe relying on the artificial rechargetiprovided by the rubber,cam and'infiltration
ponds:.
• Alternatives For Location of Kawana Splines Tank No: 2 ' •
1 Alteinative"2,(Alternative Tank Locations for 10 MG'Kawana Sorm's"Tank,-No: 21'_: . .
The alternatives analysis for Kawana Springs Tank No:, 2 was performed iby the Agency in
J _ _1 -M },pings
con uncnon with an Intt3al Study of tnvuonmental Impact m' 988 oiled Kawana S
Reservoirs and Connecting'Pipeline," and is incorporated;into•the Filial EIR by're;erence `• This "
alternative;consists.of'the constructioti.,operation,ands maintenance,of a 10 MG tank atone of the
alternative locations=describedbelow,
F,eiinrainGrovg Sires - .
• - ,The Fountain Grove sites are located.north:or-the.Fountain Grove Parkwa\;, easterly of Highway
101 in the Ciw'.of Santa,Rosa From'a;:geoio_g_ic°and-.seismic standpoint"tnese sites:are_less stable.
tham$ie proposed site and'would not be ideal'tank locations: Further'geologic and enviro-n`fnehtal -
'Thc pre@ded.project for Kavana'Soons i ank`No:d is described'as.Altemativelo-i'and'Site i in'Chapter.i.'.al[emaiives: of
th mal EIR
Tne environmental document for the:6avana Spnnss Reservoirs and Connectin_Pmciine.,a Russian River.'Gotatt intertie°roject-
has been incorporated oyfreterenc_into¢his EiR- Please refer to Sub nacte a1."inuoduction to environmental Setting. impacts: fra
and Giiiisation'teasures'C,apier:"tar more lnrormation: - -
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analysis would be-necessary if one of these alternatives were selected. All fourisites are either in ..
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or near enough to the State Aldnist.P,ricilo Special Study.-Zone5O,require special geologic studies
of each kite?. Site No A is !boated;near-.inc,historical winery at Fountain Grove. The winery
building was designated a historic structure Dv the City of Santa Rosa in 1981.
it
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None or these sites iesSen impacts becabse they, Would be located in areas of seismic instability
l-
and would not be ideal tank locations :in addition. one site would- be located near a historic
il
structure thereby potentially inipactinsi an'historic resmirce. The preferred alternative location - •
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for the tank does not haveianv significant adverse environmental irhOacts and would be located at
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a site already zraded to accommodate the tank in coniuncticin with grading performed for . .
Kawana Springs Tank NO. I.
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Kmvana Springshkites - * • - . • ---- . --. • . - - - -
The Kavvana Sprinas Sites are in the vicinity of Kawana Sp-rinds Road. east of Santa Roka
I .
Avenue. and adjadent to the City of Santa Rosa. Alternative tank locations in this area are
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discussed below.' • . ,
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Site No. 2 I
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. ., This site is located iimniediately above a perennial seepage area. In zeneral the existence of
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seepage indicates saturated soil anckunstable soil..conditions. A characteristic of any appropriate
. • .
- tank site is stable soil that can pear the weight of mank and the water in the tank. The saturated
and unstable soil conditions althe site make this a.ltern- ative less desirable than the preferred'
alternative.
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Site,No. 3 • . ,
Theiterrain of this Site is oriented in an east/west-direction. The site is-;southwest of Site No 2 • _ -
and is near theiseepasse area-and.for the same reasons as listen for Site No 1 is also considered
. I '
less than desirabie as a tank construction site Also due to the considerable tree cover at this site.
• construction woUld reduiretheremoval of many.rhature:trees.
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°Thetaiitomia Alailist-Pnolo,Sabcial Simms Zones Act=bites geologic stuoief for orojicts within spicial study zones as cell cd
by the State deoflorist. •
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,ak
' 'Mc pre project for.g. ana Springs Tank No.2 is described as Alternative No andSite I in Chapter 7. -Alternatives.-o
aw
the'Final,E113:
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Site No.,4
Of the four Kawana• Springs sites: this site is located the farthest west and is in'the steepest
terrain. Much of,the site is covered'v ith oaks.. i1ihough this,site is`not located.hear-the,seePage
area, due to the :steepness.of the slope. this site is considered less geologically- stable than the
preferred alternative"site. -Since this sites the farthestwest it has.a. greater to.have 'an
adverse;,visual impact on the residents" and businesses west or'the Springs area.' The
removahoFtree cover:at•,the site for construction-would•add;toithe'visual impact. Conside aole
'excavation would'be needed>at-thisisite..particuiarly in the northern bortion,where the topography
is the steepest.' -
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Sonoma Counn Wser Scud'.ot.Environmema Imoact and Nc_ntive Declaration;Kawana song s!Rese-voirs and •
Connecnne Ploc me janudF:•193Si - -- - - -
D-(1 •
560
BX?BBIT"c' ••
W;AT,ER"'SUPPLY•4ND TRA:NSMISSION S Y STEM•PROJECT
• 'DRAFT
NItITIG= TION YIONI' 'ORING°PLA_N
In compliance with:'Section '_d081.o,ofth Californ z m
nvironeritai Qualm :, .ct thejSonorna Cbunri water
.Agency (Agency) 'nas prepared'this Mitigation Monitoring:_P.lan (iv'MP) This plan is in draft form to allow for
ur " period.or by
the possible future mcrosionSOr miti=anon measures mat T a) be proposed duff.$ m .puouc eview p
,�, the :agenc�'sBoard-ot Directors. All.;rnittaation�m �_uces pr000sed.in the Water Suppir and Transmission
°• System Project Environmental Inroact.Report;!(EIR) have;oeen included in the IvIMP Eacn'mitigation measure
' , and the method of monitoring dr verjrving theicompietion of the measure is described in the MMP. Upon
approval of the MMP ov the Agency; Board,ofDir tors: eacn m ugation measure will be entered onto one one
the Agency's Mitigation Monitoring Renor_forms (MMR;•and tn_a'me mitigation:measure will be entered into
the Agency's Environmental Comolianc Section!, Mitigation Mor,roring database (Database). Before. ',I'
monitoring of a specific mitigation measure isireauired.;the MMR willbe forwarded 'bythe•Environmentlial
Compliance Section,to the aeproonate Agency department/Staff for monitoring. ' a
Various Agency departments/staffmemn rs"r sponsiole for monitoring or verification'of project mitigation •
measures and their generaliareas;of.,responsi0iliry are as follows:.
The Project Engineer is'.responsible,,for craect'design. • .• • _ •
•1 The Technical Writing'Section'is responsible=for'prepara ion of project specifications. I
The Construction:Inspection Section is_responsibl for e:iforcement of theiprovisions of the project
specifications:curing the construction'period• • -
•
The Environmental Compliance Section is responsible for or paration of the iv VED. for informing the
various departrnents.oftheir mitigation responsioiiiti s for aistripution of the anorocnate,reporung
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forms,for naintenanc or yherDatapase wmcn tracks the sarus or m ngauon tensurs and for Fogging ,
and evaluating th •effectiven'ess a the mitigaio measures In some cas s; me•Environmental
_.
Compliance Section is responsiple roratnpiemennhg aria amonttormg-various mitigation measur ls .
The Right-of-WaySection;is responsibi for coordinating with private,Drooerry owners for acohisition
ofproperry or ternnorary and/or Dermaneni easements: anc;for cooromaimaJJany±issues concerning •
pronem ngnts;witn pronenv owners.
• .
Tne ODeratiOIIS and Maintenance Di■ision IS;r_eSpORS,p I_eilOr 1mDlemenLcL]OR OI'm lP.gaLiOR measures
curin_the•ooeraIion andamaint nancebonase of project.
.
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The Agehcvs Board of Directors approves-.and adopts the MMP and aporoves`the project specifications.
... The following isa description,ofthe proiect's'mingation.rnesur s and,the reouired monitoringiverification. as r
•
Mitiatiommeasur numbers correspond to the numbers pres nted in"the EIR. rollowing ach mitigation m=
g
i
15 a Cne LItSt Ina2 IDOIC3I S 1vnlCn A4enC sections Or staff,.2r r StOilSib le:30r`m monitoring Or VCLIIICatiOn OI
• mmgation measures E nioit A s asamole MMR Tni's scampi NI1�IR:is for monitoring one of the mesures
• needed to mitigate.notential impacts'to cultural';resources.
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EARTH
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IJTIG:.QTION MEASURE ' ?A 11111 .
Temporary erosion control measures will o_lprovta a on exposed areas including but not limited to silt f nces
and straw Dates placed along the ease of noosed sioe s- around surface water reamres- and,around site margins:.
and reveseation or cut slopes with annual,grasses and/or'legumes raciiitat d by, mulcning:.nvaroseedmg .andior
geotextile tabrtc. Temoorary erosion control measures will o_•orovtoea atter.comoletion of s aomg-••ano.onor to
Novemo r I 'Of the construction year: ,
Prole:: Engineer X Technical'Writing
l Cnstrucn Inspection Rtaht-o \ av o \ •
Environmental.Compiiance _'Operationand Maintenance , -
The mitigation measure will b .considered effective vhen:th .project specifcattions have includedlthe.:above
provisions. and the contractor has imolemented:th temporary erosion•control measures,. Monitoring,wtll
. tertninat upon;icompletion oiconstruction and acceptance:of conractor's work by the Agents-. - -
MITIGATIO MEASURE n 3-2B -
Long-term erosion control measures'will'be provided oy,:fevegetat ng areas disiuroeo owing construction with
Cali ornia native'ground;co'.er plants-shrugs and tree_.
• X. Proiecr,Engineer • X Tecnnical'Writing
X Construction inspection Rightcof-Way •
• X .Environmental Comoiiance • Operatons Maintenance - - . •an
The mitigation tneasure'wtll be,constd..red enecttv wneo-tareas:wntch:,-eawre tons-termteroston,prote nonaare
identified and 'inaicatecri the prdiect sD iflcations: ana'wnen,consflicuon,is'completed in compliance'with,the
l .
- oroiect spe tntaitons. Monitonng'wtll.t inmate upon comotenon^or cons rucnon:and,act btance;of contractor's
work'bv%Asencv..
:MIIGATION
s and o ri xcaa
iv�ted areas.willtbe'bacl:_tlted aio;all surfaces retored` Excess excavated material will
- be disposed of tnrtac oraanc wnn all'apoticabte to al-sate and aerai regulations i he,contractor will be
required to submit,to,the;Agency-s"Construction:Irsnection:Section a coov of any oraamg permit.reouired for
suchl:aisposal site under the provisions or Cnaote ,:309•of tn linifortn Building Coae, and'will also nottfv'the
. Sonoma:CountyPerrriit-andlResources Management'DeFar ment and:tne>local representatiV or'the_Califo-nia
Department of Fish and Gaine resarmng an} intended disposal site, _
P oject ngineer X TechnicalWnting
•
X_+Construction Inspection Rigth-or-Way' ,
Environmental,Como fiance Operations,and Maintenance
•
562'
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The mitigation;measur will oe considered f ecnv when 1t prol t=sne iticatiors have indiueec the aoove
provisions and .when grading permits nave peen suomntea�to the Construction lnspchop^Se tion. and the
• identified deoanm nts have'1beenYnoti7] d. Monitoring will"terminate.,tipon comoleu'on of conrruct ion. '
• ITIGATIONI NiE:xSURE 5:2;4•
The transmisslor system'-faElllnes will o., designed.,to meet°or _xceed'.tne applicable earthquake design .
requirements of.the uniform Building;Code .
X Proiect:Engineer Tcdhnical Writing
Construction Inspection Right-of-Way
•
Environmental Compliance _ Operaiions and Maintenance I
I
The mitigation measure:will:be:consio red effective effeetiVe,yvhenithe earthquake design requirements are incorporated in
the proiect design Monitoring will terminatetupon completion of,'we project design. _
IV IITIGATION'MEASTRE •1124 - -
Al] transmission system factltties±will oe,designee to meet or exceed"th aopiicabie earthquak_,design
requirements of the Uniform Building Code. `Water storage tanks will also'be. designed to.,me_t or exceed the
aooiicable,seismic design'requirements of the„Amenscan Water Works Association_ and the design _
. •, recommendations of the soil and;geologic investigations nerformed for,each tank site. -
, X Project Engineer — ec
technical Writing.
Construction inspection! Right-of-Way •
Environmental Compliance' Operations and`Maintenance
Tnemitigationmeasure will be considered effective•wne-n the:eanhquake.desiz.n requirements and the
. recommendations.of soil;and geoiogic,mvestiganons are incorporatec in 'he:orol _: design, Monitoring'will
terminate upon completion of the project design.
MITIGATION ASURE &2 .
kawana Sonngs:Tank No 2 will be destgnedao met or exCeed.1te exceed appucable earthquake design requirements of
he,Unuorm Builamg Code the apoucaol .seismic aestsr 'requirements of the-American Water Works
' Association. and the design recommendattons,.of m soiland geologtcmvesttgations^penotarted for the tank site.
X °Foie t Engineer ' Technical Writing
Construction:Inspection _ Rigntsof Way;
Environmental Comdiiance 'Operationstand"Maintenance ''
• The mitigation:measureivill''oe considered,fiecnve when the earihouak design requirements and the y
recommendations of soil and geologic investigations are'ihcorporated in the project design.; Monitoring will
• terminate upon completion,o, the.proleSit ci sign.
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WATER .
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MITIGATION IYIEASURE)5 .11 i
All..constructionictiVities will be performed in compliance Witlythe-requirements of me CalifOrnia:Rezional
• Water QUaliry:Control ttoard. North Coast Rezion;OrcierNo. 81.;73. and With,applicable-California Regional
Water Opal in••Control Board National Pollutant"Discharze zilirninatiOn•i5ystern;perrnit reauirernenta'
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_•••P.roierit Engineer • • X Technical Writing
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The mitigatioritheaSiire will Be considered•effeChie When the projectispecificationsiihave included'theYabOve
prcWisiotsl,add When construction is completed in compliance with the project:Spedlikations, Monitoring Will
terminate ubon completion of construction . .
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IMITIGATIOKIVLE2ASURE 53&12i -
:Collector No 67•willIbe,diaiiiied. constructed operateeand maintained to meet or exceed abbilicabile
reatiirerrients,dfithe e.crnetican,Water Works,ASSoCiarici.n (A‘WW:A);;Siandarda for WiateriKWells, Collecthr No o
will,rior beTumnediat cainaiCiwifOr exteribied•peribds,dfitime. Crilletthr.-NO.i6wilrberstalled,,TOthribiedItiWater
• ioualiry pursuaMito-the StatofiCainorMia Water•Well Standarciaildlletith 74-81.,and the California Well
Standards:•.Btilletini74l-96: • — ' •• .. _ _ .
X Project En:i.LTineer • -X tecnnical•Wriiiho
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Environmental Compliance X Operations and Maintenance
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--- Theimitiaatiommeastire will'Ine•Conside.ted effeciiiie.--,:itheththe'bollectors havetheencciontrueted,andr,are operated
arid rhaiiitainedi'In•a6corciance with the'abovelprb-yisions. Monitoring Will.Corriiiiiie for the iife-iof[the•iproiebk:
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0 •: GATION,KEASURE 5313
At iniiiiimum.rwell§'will Bemonitored-within:a.I.00621bot'radius from,C olleabr Nd. 6'abdtfOrone,yeari
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foilowina.construction,of,Collector No 6 The inbnitoriha,area•Villilinblude any neiethborins: wellithat i.S•
• identified by the-Aaency•asthaYing.the potential lobe aimnifiethithfliiripapted•by the Operation of C011etitorliNo,..•6.
Monitoring will beiektehdedi if deterniined by the,Aarency.to,Offnecessary after the rirst- ,:eari:of monitorina•'has
been coin bleted•and,e...yai uated. If m on itorina•deterrin ihes•thaizaroundwatenleveia nave i fallen•to•••the i•po int Where • . .
production capadiry of'a well is-sianiiicahtly;affected,:therebthteateniii2,,tee;water surbiNilto aniadliadeith well
owner;the Agencv,Will reconstruct and:ide,even the'Brcideo:y ownets'weii to allow it to-teach the lowered ,
asoundwateble■ielifwill'Canstruct a:new well at aldpationyfurther.awayifromthe proposed collectors toirebikeirne
affected well andior Will Providethe;oWner ovine affected well Withca ■:iiaterisupply from the Aaeri'dylpipeilue, .
If,atiatTectee,well is close enduza to theiuroposed-Colledthr that it can 1D ,det:...rrninediWith,deL•etairat'that the
. proposed collector sisin ilficatitly,affect.the-brodheiibni,capacirv,•of.the well. the riiiiiaationcwork•will be
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incorporated into the oroiect specification fdrthe construction contract-forthe prdobisedthcillector,
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W• Construction Insoection ... Riiiit,b1-2\Cav:
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_• Environmental Comb liance X Do erato.
nsand Mairterfance
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. Themitigatibmtheasiire4ili,De conidered,effentrie.ci,Men.intinitorinn indicates that aroundWater tluctuations.will
not threaten
. . the•wat er shob iv o f ne.in hborin_ .i411/ovvrersi.o r
when,neinhbornzWellS nave'been reconstructed or
tocined
or the .A.aency-khas Provided the well ownerwiih,a water sunbiS,.,•Monitorina will terminate one year
after construction °fa cdlieriotC,ari-dior after aipropen.yiownerls watershoply has been restored or replaced.
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MITIGATION INCASE 5.:344 - ,,
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Drainage improvements for each facillr,:,wilhbe desifrned'Uniaccordancetoith theiAnenovIS Flood Control Deal=
Criteria.
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X Proiect Engineer - Technical Writing
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hfi..Way
Inspection .... . .. . ._ .. .
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' • • Environmental Cornbiiance Oteratioilsand Maintenance, .
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• The mitization measure will be'coniidefed effective.Wnen.ldie arainainedmproyements in.accordance with the
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Flood Control Design Criteria are incbrporated-ihithe Orciject deator. Monitoriniz.Will terrninate upon completion
, 1 of the project desizn..
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IATTIGAtION WIEASURE..5.4=a
The projeCt:specifications' ill re:MI1c; that all-vehicle:arld.edilininent emission meet curent air quality .•
standards:and tharthe,cdtin-aetbrersure?thav'idlinfl-firne for hezyyequipment.be minimized to reduce on-site . .
etniSsibris. .
_ Project Ennineer ' X Teclitheal Writing
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ConstructiornInSpectiOn Right-bf-lWav
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Environmental ..Operations atinj.:Mainteriance
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Thei,rninstationmeasure .yill oe'consideredt;effectrie when-the:prOject;specinbntions:have induced the above
• proysions anci-when construclidn,i-S,completed in comPiianc-zr With the,Ordiett'SPeciiications. Monitoring will
. , terminate upon:con-hole-n(51f bfocyciatp.kpil0k,.
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MITIGATION- 2
The proiect SpeelfiClations-Will,,reouire the Contractor to ccrnrinl, witn he dust control provisions of theStand lard',
Soecifications,fer"Pubiic WbricsConstructibniand. ciependinzlem the Woi-k.locatiom 2 -1)7:requirements of the
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-• Northern Sonoma•Cotinry AclirPolliPticin Control District or the Bali Area AinQuaiit.'? Management DiStriCr.::
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Protect Enaineer .A.• recnnical 'Writing.
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Environmentai,,CornpiianCe _,Ocerations and Maintenance e
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The mitigation measure will be considered effective whentheRprojecsoecifcationsMave intiudedh&hboye'
• . provisibns and when.ConStruction'is completed:in cdtripiihncel.vith.the. PrOjectispeclifidationis. Monitbrinz-will" •
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:terminate upOn cornpietitirrof'conStruction, . - • .
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• MITIGATION illYEEASUFtEr5.4:3A •
The proiect snecifications-withrepuire that the contractor comply with,any emiSaiOn;reouirerrieritsoPthe.Bay Area
Air Quality"Ma.nagemenflDistnict-,or the Northern Sonoma Count Air Pollution Control bilstnict;for painting. and
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coating activities.,
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.., Projett,Eriaineer X
Tecthriical Wrinri,2
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X ConStniction InspeCtion - ll- _Rizhi-o-4.:aY. . .
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_ Environmehtal Compliance -pliance onerations.and Maintenance
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The mitigation measure will be considered-effective s:Vhenjne"3project soecifications,haVe includedthekabove lip,
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Provisioni.and,when,-dcingructioni,iS Compieted.in Compliance with.ne project-specifications Monitoring_ •-lilill
terminate orlon cdtipletiorrof canstruction. ,
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MitIG AT-ION WEEASURE-5.4-3B.
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Paint selected for,v.-aief s tanks will ot
toraze ll -of a re approved bvirie,Nationai:Sarlitaion--FounclatiOn and.either-
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the Bay Area Ain-Qualiry ivlanazernent District br-the Nondierri;Sonorna County ..:Nit,Pollutibii0ontiollbisn-i. b.::
' Project Efirdneer , X lecnnic g.al Writin
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nvironmental Compliance: Operaticins and:Niainteriance -
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The mitigation meaSure-Will"ie,conSibered effective:when he Proiecttenzinee has Spedifled &paintitha ,CCn011eS"
withlthe:abovelproVislons. whet' the projeci,specifications:reabire at the:COnn-aor-use the specified'paint.'and
when the•approyed:paint;naslheen applied. Monitorimloyill terminate uodn tompiendn of painting..
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X ProjeCi ❑gmeer, . _Technical wfiuhd
Construction m5pectiorr: - —TCieni of-Wa\
• X nvironmental Ciace Operations and �ifainten'ance ' •
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• The mitigation measure will 'Dc considered Lfective Znen•prol „ iaciiities have 'oe n located,toiminimize
impacts to valley oak andlorCalifornia black 3alriui,trees: Monitoring will terminate upon completion of oroiect
desien.,
MITIG':ATION'NLE aSURV..S - 6B i
T'ne Pcaenc\ s standard tree protection=measures will ce.imolementea to protect wall v,+oak andior California black
walnut:trees that are not authorized for r •moval>cur:ns construction •
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P,rojecr:`ngineer X Technical Writing•
X Constriiction-Inspection - _
Right-of-way
X Environmental_Compliance —Operations and.i Maintenance
Tn mitigation measure will'oe consider d erect v when ire prof tlon measures nay 'be_n.included in'me ,
project specifidatiOnti and:wh n valle} pal and/or California olaci.walnut trees have been protected in
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accordance with the proiect;spz iotations, vionitortng:W_ill'tem irate,upon completion of:construction arid
acceptance of the.contractor's work ov.,the ?.sent\
•' MITIGATION MEASURE _�6C
Any,valley,oak or California black walnut treesremoved`that measures'ove 4 inches DBH will be replaced in .-
kind at a 5.1 ratio: galley.oak.or California-biack walnuts""smaflerahan a inones:DBH will be replaced to kind;at a .
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hl ratio. This mitigation measure will o imolem rated mconluncnon wrh tne;r vegetanorplan(s) of Mitigation. w
Measure S-3. 'Mitigation will occur as near,as`possible,to me tinoactec-area.
=.^ „ ,Tecgnical Wrting:
w gr Projec Engineer. _ 1 Mite ,
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X Construction Inspection
R ehto W-av
X Environmental Compliance —Operatlonssand,Maintenance
The mitigation measure will b considered tfectiv when the treesito Pe r moved have been idenrfied-
measaree. and`;count d_anb,when.reveg ragon has occurred VlonttormS wilhte'trtinate three,years after
install'ation,'of plants.
• YIITIGATION MEASURE
Wherever possible onstruction activiti s in tile;npar?an woodland area surrounding Collector No. 6 wit' be
limited to'j,late;summeri:through ariv'-fall (until to sar of th -amv(season)-to;avoid destruction of n syf sites or
=•x construction
' 'Wnere it'is noC ossidle.to ae:av'construction activities.prior to'c
integer race wttn preamsbenavior.. - p no
beginning in riparian,woodlandsareas: th Agenc'will survey the proposed construction area to determine the
• present of�any,vellow-breasted char nests. WheEetver possibi 'project routes or alignments will be re-routed to.
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avoid impacts to a yellow breasted chat nest. if complete avoidance is not possible. then-a nest. protection zone ,
will bed fined_ and physical oar e.ssucn sfencine will 'De installed to prevent construction euipment from .
disturbing toe nest: Nests=will be "monitor d'weekly durine.'construction activities and protection measures or
construction activities will be modified'as necessan'.•
X Proiect Enaineer :X Technical Writing
X.;Const�ucndn;inspection _.Rtant-of-Walt
X, Environmental:Compliance, _ Operatons`and Maintenance
. The. mitigation"rneasure!.wilkbe considered effects `wnen,coristruction activities have,'peen limited to the=time•
period';sp ined;in theabove provisions when protectiommeasures have been imps m need to protect nests. •
andior when aisturbance;or,destruction'ofvelloWToreasted chat nests hasbeena'voiaed: Monitoring-will
terminate upon,comoletioniof construction.
- ',MITIGATION ME_.,SLR2E o.=-10 .
Wire spacing of 60 incites`will be,maintained for all•ooweriines If economicaliy t asibie. poweriines'ma}"be' .
installed io unaerround•conduit.
X Project Engineer X Technical°Writing
X Construction Inspection X Right-ofWav
nvir onment�av:Comoconstaerea''°ffe^tit^Onern owseand'Maintenanc
iorin_ wtll'termma u with the sod uteri;wire
The mitigation measure will be es nave been ins all°a•
.: ,r. distance ....wnen,sater; palls naveoe_n mstalied. Mon
o upon compleetion of
constructionttalthu
ovn maintenance•will continue for the'iife of tiie project- •
_ ' 3. . VIITIGATION-J ASUR S 11 _ ,
During preparation of site-specific environmental documentation for'pipeline projects wetlands and oth r waters
of the United''StatestwiIl,be,delineated along pip line routes so.as•to provide for proper pianning'oftavoiaing
'and/or minimizing impacts to those sensitive areas. Trenches"Will.'oe baCkfilled to original,grade•with'native; .
material to heio;restore surticltIcirainane and.subsurface permeaoutty. .
X Tecan nn
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X` Proie_t-Engineer
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X 'Environmental Cornoiiance _Operations:and Maintenance .
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The'•mineation measure will`be•considered.efiec iv when•the oroiect sp cificatiors:rave me uded%th above
provisions and,when wading permitsihave peen suomitted'to the Construction:Inspection Section♦ and the
identified aegariments have oeen,notifted:, Sitomtormg'will terminate'upon comol .rotor construction.
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a MITIGATION N;E:A.s L112.E-5:64 ..
The Az-nes-will continuellocin-i-PieneriCtiie-preferred estuary-management plan. .
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, roiect a -is:meet • TeChhibal Wriring . .
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COnstruction Insoettion Right-o',W as.
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The mitigation measure,will'oeconsideredeffective as the,.preferr'eci eSidar -managertent plan continues to cc
implernented. Begat:at:the:A:genes. iS reddireda•itnPlerrenethis plaii. nbnitoring will nofhe neceSsars,.. •
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IVEITIGATION..NLEASTJRE 5'26:6 — •
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Prior to construction oeginning in'an,area.4theyAlallent,SrWili:survey dye:proposed construction area to detertnine the
. . presence of pond turtle nests.. Wheresrer,possible. prOject routes or align- Meats.'will'bete-rbutedto avoici impacts
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to a pond turtle neat. if corriblete-avoidance,iS not feasible:lmen nest protection zone will be defined. and
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• physical bamers'sucn as fenCingrandlon haylbares!WillbeWnstalledl„tonprevent•construction eauipment irony.,
disturbing.the•nest_.and to prevent cone natchiings,from inaevertenils; entering me construction zonr-. Nests
will be monitored daily during. Construction actiVitieS by)the Athere'lYto check for the emergence of pond turtle
'. lnatchi ing.s. When hatchiihos emerge from the nes t. constructionidtneyarea will be halted to allow the 'natchiings ,•
safe access to the river or ponds. • • - I
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Tne mitigation measure will bc•cor.sidered effectiVe,Whenprotectiodmeasures.soecified above have been
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.‘„ impiemented to protect nests arialof Whe.n:distiarcance orciestruction-of:pond.rurtie nests has been avoicied.
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Monitoring will tenninate•uacin completion or consmuction.
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NOISE
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, MTTIGATION Iva:A:SURE 5.7-23 - . •
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The proieet specific#Onsl:wilireadire•the:coritrac.for to cOrifine•construCtiorEactivitv on Monday through Friday- _•
to the hours between 700la.m. to 700 p.ni... on Saturday fT01111800 a.m . to o7:00:gy.rn...ahEitto prohibit construction
' on Sundays or•hoiidavS. the...prdlect,:sne.difications:WililaiSoireduire-triat all equipment and.vehicies used.for
construction Will be.Maintained:••ilugoocimecharileal condition and have encine muffierslidszalled.
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The mitigation measure will be c.onsidered effective -wherrtheiproject,specificarions have included,the above
provisions and when construction i's.-combletedio comphance'with the project specifications. Menke:Itint:Wit!
terminate upon completion Of-äb riStriiction.
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MITIGATION INIE-ASURE,57-3 .
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. Within 6 months of conibieliOn,,oficbliector No 6. .4.geriCy saff.Will'measure noise ievelsiarthe tcolieCtorriearby .
resicience public tiseafeaS.'ior other noise sensitive area, aria without the collector Operating.? 'if noise .
getierated by the-collector exceeds.the recommenced Sonoma County General Piari:.s acceptable noise level for
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• - 'those areas the Agencv wiii•coristruct noise,reaucing banners orencioSiireS.around`the•:ndise generating
equipmeriftaiiiie•i&xteht;nee.ded•TO make the facility:Meet the Sonoma Count General Plan's kikel:Standards..
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The Me asb re win:be-considered effet_tly eion.Penoise• neasdrements4ave been:taken. and areYi&IOWthe • '''-
specified noise'standardS1.Or wh&rinoise reduction.measures nave been implernenfedto redtiaericiise cielow the
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. -StandardS. 'Mohitorino:'Will terminate six months,aner-chnstruction or after noise recinctidri measure s nave teen .• • . ...,
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deterrninedjo:be. effective • • .
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MITIGATION'WEASURE 5.7,4
consfructioniniareas Within city-. limits will compiyWith theappiicabie city ordinances or aoplicabl&bin- general
, • bran'pOliCieSOr Measures that•govem noise. • . 0
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The mitigation measure will 'considered effectie•wh&n,,iht,.:ptojectspecifications-haN';e induced liany.apOiicabie,'
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noise provisions andivinen consuctiori is corn-pie:ed.in,complianee Witirtheturojectspetifibations.orMbnitdring.
will terminate tipon compietion•Of Construction_ . , .
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MITIGATIONMEASURE 5.971-k - ..• . . .
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• Residents:along road'WaYsaffected by construction will 'oe.notified at least one week:in:a:di/a-rice/of
Oommencerriefit of construction thattraffic.ficiWs will 'o&spOjecz•to detoursiand/or delavS. atia•that access to
maw itial'ariy,eways.may.'oe-raisruptea icuring weekday working- nourt. Ace essi will',Iiie restored to:all,reSidences• .
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for all non-working houri. hciiida■is.and weekends. ,ineproject arearoaawayswi4'oe'posted at lea one week in
advance,of commencement of con'structionto.infonn,,drivers or the7irriperiding-:constructioni-Workiaribi!li}te1y
cielays..Emergenov service providers"(Soronia:Cotihry Sheriffs Department. CaliforriianigliWay:fatroi. and/or
any locaiObli&eand'firerprotection seriites)iWill!6e notifediatleaSt one weet:•i niarV. adbe,o•fbommeneer &htib-
construction in areas-thatirnav-be affectediby niafic'delays. - .
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. `Project,Enoineer X technical Writing
\ Construction Insoectionr 'Right-of -`'
_.Environmental Comoiianc'e- =Operations,^and Maintenance
'Tbeimitization measure will,be consicerec'effentive,wnen the orOjecvspecifitaltitinsihaVe inciuned-the above •
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provisionsland•wnen;construction is ..ample a m;omoiiance wren m_ oroje t specifications. Monitoring_ will
terrnmate-upon completion of construcilon.
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- MITIG-ATIQN'ivIFASURE'5.9:5:9.:74B.
Where applicable for wort. in;ououc roanwa\s 'the,&° ncy will obtain encroachment oerrnits from a_encieswith
jurisdiction over the roaaways.,,and wiilicomeh with all provisions}orsuch permits- including trafficcontroi and
other safer'precautions to minimize incoMl niences and'orote *,the:pubilc.
-•,Proiect,Engineer • .X e nnical Writing • - - -
X Construction lnspeetion' :Ri°nt-of-Was' '
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Environmental'Comoliance. ,Co_rations;and Maintenance .•I•
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i° n measure be cnsd 'ed tt fv e wn me oroi ions•hiave included the`abg ove
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provisions wnen.construction is comoiet df in,compiiance with•me'project specifcations. Monitoring;twill
terminate upon completion.of,construc ion:: .
Where
IVIITITION MEASIIRE 5 li , `voaoways, the n° ncswill ootain'sucn perrnite peermits traffic control s with "'
ouptic roa e�croa h`m tit p emits from a_ nciry
W her 'a potable for war ,in., ° and
iunsciction over the roaeways.•and, i comply With,,ell provisions o,
other safety precautions to.minimize•ineonv nienCes and.p"rote *the oubiic.
. X Technical-Writing _
— Project En°me`r'
• X Construction3nsoection, Right-of4Way'
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_ Environmental-Comoiiance — Operations and Maintenance. •'
Tne miu zatiOn measure will b iconsidereO rte;ty. wn nine DLO) :(sue IIications.nave_iR ivaed the above
• provisions and"w''nen.cons4LLCtiOn.is COmpiete i c he alwill
e in ompnanc wRn n° proiet spepirications.. Monroe n_
terminate-upon'completion oI-consiruction. • .
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PUBLIC SERVICES AND UTILITIES
MITIGATION MEASURE 54043
Tne oroje t a sign and construction details"will'be coordinated with the appropriate unlit\ comoariies. including "
PG&E. To avoid accicental.;service inierruotions:.Undersround Service Alert .will be contacted at;leasL 2- hours
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error to'e�ca�anon; Gigging or3renchino acnvanes 1 ne;duranon ot`construcnon=re;ated bfsruononsao;unun
services avill pe keot to a minimum..and all services will oe'restored bv.th_ end'of eacn'workday', i.ocal residents
will be"notured prior:to any known service interruptions resulting from the ofoje• t..
Proiect Engineer X techni al Wrtprg .. ,
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Environmental,.Co_mpliance _Ooerationsiand Maintenance
The measure will:'oetconsidered eite=tive•when.proje t design has 'oeen:,coordinatea wtth;the
.. aoorooriate utility companies.,when the protect sp urcations have included the a000e,provisions•and when •
construction is completed in•compliance.with the projectspectncaiions . Monitoring Will'terninate upon - .. •
completion.'oftonstruction. -
ENERGY
IIITIGATION'r'atiLEASU E ill-1
t o,thele'aent possrol_.'the•.9aency will continue to use W APA energv,as'avaiiable and PG&Eienergv aunng off
peak demand periods to reduc ne g??. costs and,_t_o allow' G&E to:maintain a large margin•of reserve oowe^
g.n..r anon capaciry. In,addinon. energy efficient equipment (lesions or energy saving aevacs will'be,usea �'
whenever possrole tor ad'diiionalenergy•savings. •
-X Proiec ndiheer e finical Writing
Construction thsoection Runt-of='Way' •• '
Environmental:Comoliance ; Operations and•Maint nance
The mitigation:measure will oe considered effective effeefiVelythen;the Agency continues to dse.PG& renergv during-off=',
Peak,penods, and'.when energy; efficient entlinmenttorenerpilaVinit devices are incorporated.tnto;proje& desidn
and facility operationsand=maintenance. ,MomtonrsWill continue for the.lifesof the protect:
,PUBLICt .ALTII A_1V_D:SAFETY .
M TIG aTION!IIEASURE 13-1 • -
The ororect specifications`will recutre'thatthe.contractor'follow the provisions o, Sections 5 6.: througn-o 167 of • -
the Gene al indiistn'Safen! Ora (California,Coae of:Reaulations:.Title 8) to.prote t the project ar.a:from
being contaminatedibv the acaaental rel ase of any hazardous materials and/or wastes, Disposal of all hazardous
materials will'be in'comoiiance with the current California,hazardous'waste'disposahlaws: Chlorine ana'caustic•
soda transporters-will be reoutrea to'hav the prop r 'Menses and permits ror transnorrtns,•such materials:
Chlorine-and caustic soda will be transport d inicontainers aoproved,bv The Department of transportation (DOT).,
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n"',v1th chip n auS-.c o or ctl' �- .-r•^-CLc `^A1-er a S will Pe reauired to nave
• A� nev employees-Wor;.m.
r ived,hazarcous materials tramingniniac oreanc tith,tne -gent's''Iniur and Illness Pr venton Program;
. ', Agencv'employees will'oe"reouired;to'use to 'A°--en s.M"aste lnrurv,ano Illness Pr venison Program Manual's
wprocedures for toesare;handiing or hlonne caustic oaa o'i'oth r naiaraous male ais The construction
, contractor will:contact the local fire agent and;ti Counn Deparmentsof Public H alth_Environmental Health
1 Division, for any site specific.rea`lirements resardm_hazardous inatenalsrornazaroous°waste containment or
handling.
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Project. Engineer X Technical Writing
X Construction.inspection, _ K °nt'o-W:av .
• _ Environmental Compliance X Operations and"_Maintenance' • •
The mitigation measure will 'o considered effective wneri the project,sve ifications nave included toe above
provisions and when`'construction is completed in comoiianc .vith;me proiectt specifications. Monitoring will
terminate upon completion of con'st uction Ifor wore. ompieted ov a•contractor. In addition the mitigation
measure will'be considered of e tive wh n Agency moloye s hay received the,renuired training to handle
hazardous materials. Monitoring,foa training of Agencv'employees'will continue •
for the life of the prof e t.
IVIITdGATIOI\ MEASURE 5.1:2;2
Tbe'oroject-specifcations will reauire;that tn contractor'follow th ;orovisiorsof Sections 5163 through 167 of
the General•Industry Safety Ora rs.(CalifomiarCoa 1ofRegutations t itl '8),,to protect the'prolect area from ii,
peing'contaminated ov:the accidental'reiease of am nazaraousimate`rialstanoIor wastes. Disposal of all Hazardous
materiats will o° m compliance With.the current
C ufoinia°,hazardous waste disposal laws. All Agenc' Operation n
a-nd Maintena nce employees;'W ill conti nu o o-e train d to Ha?,rdous Materialss1Responaer awar n s's Level
• o with the Aen s Emergencv Operaton-Plan Memoers or the agencys Hazardous Materials,
• 'Team'will continue to be traed t •the Fint Responner peraions and Te hnician evel. The construction
in O
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contractor will contact the local fire agency and"'the County"DeparSrient of Public Health, Environmental;Health.
• .Division. for any site'specific.re0uli•ements.,regarcicg hazardous niaterialsior'hazardous waste containment or
. handling. : •
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r o eci ni no r• i
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EnvironmentallComoiianc-°, X Ooerationsl and.;Maintenance I . •
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The mitigation,measure will De'consider d effective when,the project spe iocations have included th acove
provisions and when construe ion scomnl `°d in :mpu
disc_•wish the prole_sspe i i_ations. Momtonng will
terminate upon completion•of constnlctien kor,WG completed Ova contaac or: 'In aaaaion.themingation
measure will be.consiaer d''' ire ive ,When Agen mpiove s have re etvec;th recuiredtraining to Handle
nazaraousmaterais. Nionttonng'iorycatnmg,or Aa tic:,employees will connnue•forthe life Of the protect.
• MITIGATION MEASURE o 12-3
If hazardous materials are encount,redcauring°;consruenon activities. the:contractor will'b required to Halt
construction immeaiateiv ano notifvsme Aa.ndv s Consmucuon inspe tion Section Tne'Aaency will pr:are a .
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Site Safety Plan.in accordant_ wlth.anv r oirents of in_ Califonia R Qional Rater Quality Control Board . .
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(North Coast Region). Disposal of all hazardous materials will be in compliance with all applicable California
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The.mitic.ation'measure:will'be conSidered,effectivewnen the project specifications nave incrucled1the;aoove:
provisions anc4when construction is cdMoieted incompiiince with the proiectsspelifications. MoniZbrina.will
terminate,upon completiOn at bOnstruction.
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PETIGATION'ICCE'ASURE,5.1322: --
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: - • Areas clearecgduring construction will 'oelsee4ed andlor-revegetated. whereveripossibie.
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X- Environmental:Compliance --X' Oberatiorisand Maintenanbe .
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The Mitigation measure will belOonsiciered effective Wilett,kfeas which can be revegetafehisare1identified,and,
indicated.onidMwingS;ii(thejproject specifidaticinS ani:iwi?en.seecilinziret,esiefatibil is)dorripibtedvin compliance .
With the7.pi-oject'sbecifications. Monitoring y,:ill',zerniinate-upon aoinpletibri-of construction aria acceptance of
contrac9it's Work:by, Aaency.• • .
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1111TICkTIONMEEX.,ST./14..E•5.13-3
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AfterconstruaiOn of Colleatat*Th.,6.•the .4gencY-willi.verify that:the pumnhodse is ricii,ciearly'visible)from the '
public yiewnointsi:anckthat he visual impact-remains-ieSs-thaii7sianificaraz If the motor,housira is:ViStble.ir•vvill
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be painted-With akiW-glosstaintima color that'oierfcis'with zneisurroundinavesietation.
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The mitigation measure will,be considered effective when Collector o 'oastbeen determined to not,be clearly ...
yisibie from an' public vieWPointa.lanciThriafter me Motor housing hastbeen nainted. .Nitonitoring. iii tenniriae
when it has..oeen determined that the cdliectdr is not clear!' visibleifrom.any ouolic vieWpoints.
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• , iIITIGATION:AEASURE-5:134!
DiVeffiibit facilitieS'beideS:C011ectbrWo': 6P-Will be iocatedtand constructed in a thanner;that.thinimizes vituil!
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impadzal.'Whet eVer,leaSiPie.,cilyetaion,;faciiities:will belocatedbeloWeXhlSed,iltht±lines or naturally screened
from yiewl.biyiexiStina topography afid/or.vegentioii. ,„Ndiditionairrieasilires'ici'minithize visual itnoacis
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include: art.arcnitectural oniidiriTstyle didignedn'.;blerid'■.Vith:other Putidingsnithepareat buildings.With
unpainted concrete or or a loW-gloSs paint thattilends witiuthe surrounding erivirbnineno and Cie:Zeta:ion,
planted so nat.the structure will e:%;encpall ;:.'cie screened-or partiallY screened from vie*. The ortmosed.initiaatiod
• Measurefik expected to reduce;the,:impact,to a le:SS:thari-.Signifitafit,leVel:::nOWeVer. it ma reduce it to a less-.
!, thantsignifleant.leve! for all vibweths .'Potential tmoacts-ofthesePothet-ciiversion facilities will oe discussed in . .
. . future enVitotimental,,ciocUments'When the'iPeation of such facilities IS;deffirrnined.
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Protect Engineer . TechniPal.Wtitind . •
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_,Ooerations andMainte.nance.
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- • itne..rnitigation;meaSure will.be-considered'peffective:WnemniV.ersiori facilities have.-been deterrnined;to not cc .
. . .. .. clearly visible-from public-viewpoitirs':,;Monitoririg'wiWterrninate When it tiaS,6.ein,deffirthined-that the called:or-L.>.
'snot clerk visible from any„Ptiblic..kiewpoints. • -.
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Wherever feasible.the Agenc' will design pipelines tb bedOdatecipPin-existing',pt.thiic right-Pof-way. and to
minimize-the-removal of vegetation.,
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I nt.mingation measure will be;rbonsidereifieffe#ive:Witenthe prplectrengtheen'has located;fficiiities to.avid or -
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minimize visual impacts and tenovalbf Ni.egezatiort. Monitoring will terrninate-upon comnietion of project
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MITIGATION MEASURE 3.1.3-7 •
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Tanks will be locatediand,constructed in aP„rnanner thazitirtitiiizeswiSiffil.,iinPacas. Vyfi4arciyer. feaSibie tanks will .
! be locatecPbelbw exnose&ridgelines.:anaior'rianiralivscreened from view:,bv•exiStirat000Zrariav and/or..,
; . veg.'etation. The following theasThresr will 'oeliiinpiernenced: as apPlicabie...tiltfurchehminirriize int:acts to v'suai
quaiiry: V..ate”storagemnIcs will 'De constnicTe&With aflowifprorileiot surrounced ni an earthen berm for . .
camouflage: tanks?will,:be painted WitnaloW-gloss paint',that bienas•Witliqne:surroundina environment: ac
vegetation will oe inStalled sOliat.the.tanks=will evennall*,,,be.screened,:bh nanialIV screened;from view.
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The mitigation measure will be considered effective when the project engineer has located facilities to avoid or
minimize visual Impacts: me appropriate design features 115 eo,aoove have:peen incorporated in the project desifln
and inciuded in[tnc ro ect specifications anal the facilities have oe 'i construe ep in compliance with:the project
specifications. 1Monitoring will terminate upon Completion>-oI-constnic'ion. • " -
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MITIGATION MEASLRE 5.13;3 '
Kawana,lSprings,Tank-tio. 2. will be painted:with a low-gloss paint. in a dark green:coior'thar,will 'oleha with'trie
sufrouriciiiia gal ivege anon. .
X Protect: nginee- ,X uecnnical Writing
X` Construction Inspection Risnt-of-Way _
' X Environmental Comoliance .Operations and'Maintenance
The mitigation measure-will"be,consiaerea effective wnen'thenrojecbengines-nas selected alpainti-in.accordancer
. with the aooves ecificavons. the"paint]selectiont'has ce n:incorporated into t_he proiectspecifications andtthe -
paint has be n applied:in.comoiiancerwith the bje sbecificatiohs. : .
VIITIGATION NrnASURE 5.i3-9
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;Booster pump stations-will"oe,located and`constructed in a^manner.that minimizes visual impacts:,'Wherever
-- _ feasible- structures1Will be located below noosed:r ageanes, naturally screened'from view os Yisting topoaraohv
andior vegetation: T'ne following.measures will b implemented. as;apoiicabie.;to tunher mmimizer,impacts to
visual aualin: architectural style of buildings will be.designed to blend with.otYfe, otniains in thetar a. unsishtl''
eauipment•will be surrounded ov chain-link fencing with"wooaen'siats. buildings•will oe,eith r unpainted
masonry or.will be'patntea with aJ low:-°loss paint trat olends with pile:surrounding environment and,vegetation 0.
. :will be-installed-'so•that eac5.of the:structures will e,entuall'} o_ screened:or partially screened.from.view:
X 1 'X T echpical"W riling
X Protect Engineer _
i ","''^' X Consmiction inspection :.'X Piaui-or V.ay.
X Environmental Compliance Operations and¢Maintenance-
The mitigation measureswilUbe considered effective when the-.project engineer nas located ,acuities toravoid:or
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minimize visual impact: the appropriate design f _tures'iisted above have°been incorporat aim the1;oroject design
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and included ig`the prole_t'specuuanons and the! acurztesnave:been constructed in compliance with the`proiect
specifications: Monitoring Will terminate rmi n
ate uo 'compieon:or-con_ icnon
CULTURAL RESOURCES .
MITIG.&TION ■ 1EASLRE 1 -1
mteres the;conractor will immematei} cease.ex avavo s mad arhems of arena ologica! or paiepnto icatorl
T e roe specifications.will rovide that it aiscoven:l
n in th ar ao aiscoyen ar iiaeoloQical maicatdrs;map''
incluce (but are not'iimitedlto) dwelling sites-•ston •impiements;or:oth -anifacts animal;bons: humanibones; .
and,fossils. After cessation or exayanonthe-contractor will immediateiv contact the Agency s{Construction'c
inspects
ont5ecnor.. Tne'contractorwtll not resume work untu autnonzanon•,isrre-e ved from thetConstruction
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:Inspection Section. Ifiarchaebiogteal inoicatbrs:Iare alscbSiered;CturingIebnstruction. the Agency will"contact the
Northwest Information Center at SanomaStateelirilversizvJo.evaliate me.significance:of the site prior to
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resuming any activitiesIthat cotilafrioact'the site:: I it isdeterminedithat the find:is unique uncier CEQA and/or
• ooterrtiallv:etigible for listing infithetaiifbimia Register:and:the site cannoitbe avoiced.:an arcneologist snail
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; providea research assign and excavation plamoiitiininglrec:OVe*I,of the;Ireciiiitte.lanai,Vsis. ancireportineLof the
find. The;research design and excavation;prari y,;iii:D.tiisubrnittedi-to)tiie. ,A2e`rityts Construction Inspection Section
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and approvo• oy tne Agency prior to constructiop ceingTesurned,„
• Project...Engineer X. TechniCal,Wrifing - .
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' Tbe:mitigation measure will be(coniidered•effective it the•Contractor iS•abietb-identin• a potential cultural
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• resources site and if construction iViialted it such 1ite'until:ane):•aivation of the sites significance can as made. •
Monitoring Will terrninatetiloori completion of construction:. •.:::•••:
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MitiGATION•WITASMItt: 5.1572 - - -
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If cultural resources indicators:are-diseovered.dunnz.cOnstruatileMactiVitiesl•bearthvWohier,&laintenanCe Yard.
Mitigation-Measure,5.15-1..WilLbe implemented) :If themalcatorvare connected with the cultural resources site: .
' •. identified b1y AkS. a quaiified;archaebioeist will:De:retained to monitor construction to avoid further carnage to
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• pne.mitizatibn measure will be•cOnsiclered:eftectiveitdamagetpithe identified•cuitural resources site is Avoided.
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:Monitoring will terminate upon completion or:construe:don, .
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:Adapted:by the .&stencyls Board of Directors Resblution No. ' • . `on (date) . .
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SCWA MITIGATION NIONITORING REPORT
Project Name:WATERSUPPL`r AND TRANSMISSIONSYS.tEM RO)E'G ReoonNo:.'WSTSP :-.15,7 1iA
• Project Type: P ater.Spoi} ood-Control Other
III-
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Inspection/Verification Dater _ -,19. . .
InspectioniVerification Performed By:, . • ,
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Report:Prepared BV: _ - -
Imoact:Type: CULTURAL RESOURCES - - -
Mitigation Measurei The Technical Writins Section will venfv that the 'protect soecificarionS crovice that if discove'Vlis',mace
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of itema,oE arcnaeoic_tcal or`oaleonmlo_.cal mt .the contazcro;will�immediat n^cease°scavanonm theaiea•of•atscoven•:+ -
that archaeological indicator;inav include (but are hot.lirnited.tol'dwellLie<sites_stone 'uholements or other aittracts: animal
bones.. human 'pones:- and.rossils.-that after cessation of excavation. the'cdiiwactor_w11l', immediately contact''the a.°_encV's
Construction,1nsoectlon Section:-and-ihat.the contractor willinonresume•wor.uhtil auttiorizations:s receiJedvom;tti_ Agency's
Construction insoeciion Section., .
Mitigation Measure Status _
Ezceptiops•F,romiNliiigaiion!Measure Described Aboye:. ' -. . --
Remaining Vvork]n eeded to'Cogiolete,Miirigariori measure..., -
Estimated D ate'forcomn'kin n r OEM itigationi. . 19 -
Mitigation Monitoring Reoortidue;datet' _
Tb oe-nlled'lour,av the Environmental Compuance Sec-born •Date:sentto'division)denatmieaf: - 19 - -
Date rerumedkto ECS: - 19 •
sDate eater dtn MMP'darabase 3:project oinde- . 19_
Enterea`into ECS Database by: - '
Date nett Mingaticn Reoort-is'reauiredz NiA 1a - .
E Lo •
. 579