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<br />Fedoni <br /> <br /> <br />The doaulleDlI COIIIpr;omg thl! ~ <br />of the River'" do req1Iire COIlOideratioa of <br />all pnlject _ wilen makin& <br />deciaion.s on operatioD of the Colorado <br />Rrrer SJ"Stem. ID the _topmenl of <br />each ADP. .~.vIenlion m...1 be gi?f!II <br />to all pt'Dject _ delinelted in <br />each opeafic tacility's eutborlzilts <br />1~latiOD. Modificatioa of the Ioat-lerm <br />Operating Criteril ia not neceeoary tn <br />pruvide ruch COIlIideratioa. n....... is <br />sufficj..,1 flexibility within the currenl <br />Operating Criteril to give aPJll'Ol>lilte <br />consideration In all ptOject parpo..... <br />[$Sue 4: Whether the OperaIinS <br />Crileria or ADP .bould lucludl! <br />""m11"1"1n-m.s 'Pill. inclodi..ns miJ'li?ni...;..., <br />b.igb Oows and flood control relea.es. <br />wbelber full poollnel sbould be <br />Identified in the Operating Ctlteri8. and <br />wbetber !be probabilily of 1pi1J. al Glm <br />CanyoD Dam ahDllld be ~ by <br />remavms the l102(lj.lorase requiremenl <br /> <br />I Vol. 57. :-;0. 176 I T;:"",day. ~~t. <br /> <br />:.hat plloc;...1:;.Ub ~ o;:n;ade to i.:01d <br />i.nncipated 'Pills. <br />Analysu.: Th.J5 '-'S\.:.e rei.ale'S to :.M <br />monthly ~d annual o.pe!'anan.s o~ C:I?1. <br />Canyon Dam thlt are sch.dul.d to <br />..aid "spills. " th~ ~ define<: a, <br />release-, ID exC%'S'S oi =:.o,e wttid:1 :an be <br />utilizetl for pnlject P'=?O.... R.f=c. <br />to ,uch rel.a5e'S is _de in Public Law <br />9G-S31. Section 802laJ(3). and in the <br />OJ>.ranng Crit.na. Sec::lons 0(3)[cl and <br />ll(4). Exampl", at suO exc... rei..... <br />include powerplant ~a!ses and water <br />released in excess oI :::ot"'...5Wnl'tive use <br />requirem.=ts dnwn.r.:-e3m oI Lak. <br />Powell <br />Both P.~bUc I.aw !lIl-SJ:" and the <br />.xistir.g Operatin8 c.~-","a conI..., <br />langual!" di.""I!Cting th.al the operaoon of <br />the Colorado River sptem res",,'oirs <br />,.. . . aVOId anticipa!2<l spill. fram <br />Lake Powell. - Th. ope'8tion of all of the <br />Colorado River ",..".....,;n is foreca'l. <br />based and incl\ldes """,dator;' Hood <br />concrol re-strictians iD '.:!1e apera!ian of <br />Hoove1' Dam c:otUi.sIe:: with flood <br />control as ane of the ;:c::poses of tbe <br />project. At each paint ~g the y.ar. <br />round fonoast period (typically the first <br />of each month from l=-~ary throngh <br />July) evaluations of !be current utilow <br />forecast an! made ;md the .cheduled <br />releases an: adjusted i:::: order to a,..oid <br />.pills from Glen Ca.a,_ Dam [wtule <br />attempting tel ma....~~ !torage <br />.vailable for tulare t1SI!~ "Anticip'led <br />sp1.l!s" have bet!n i:nt~ted as being <br />those th.1 are expecteC as a result of <br />forecasted :::now. <br />The OJ>eratin8 Crite'..a an! purpo..ly <br />general in many areas :..0 provtde the <br />fleXlbility ~d In accommodate <br />"azylng bydrologic c.oDditions. To <br />reduce the !requency ai spilla. <br />operations ba.... been implemented <br />wbich include a combcation of <br />.chedulias hi3her wmn.r rel.ases aad <br />..tazgeling- a full reenoir about 5Oll.ooo <br />acre-feet lower than f1:!I capacity (Ia a <br />buffer) UDliI the peak nmoff has cleorly <br />pa..ed. Beanse the ~oir can .tiII <br />be filled after aury danp!r of spills bas <br />pa.sed.. conservation .S'"...crage is net <br />affected. <br />The Operating Crite:".a an! genEra! <br />enough In allow ",ch aCjostmO!lt1ll to b. <br />pan of the ADP d. .do..,.n..enl proce... <br />11>e AQP ~ developed amrualJy a:od the <br />current reervoir cnndi:t!xJas. all project <br />reqairem"".... the prubability of inflow.. <br />and alternative release strates;es an! aU <br />con.idered in a public fDnmL <br />The 602{a} storage .~.~,u:l.l.lent must <br />be retained in th. 0per:a1ln8 Criteria <br />because it ~ statutorily lZWldated. <br />Furthermore. the qaaDti!icatloa at the <br />l102(.).I\lragI! level cm:nortIy haa DO <br />.ffect aD .pilla from Qes Canyon Dam. <br />althoush it may at some fulm'e tim. <br /> <br />r 10. ~99:! .' 7'-iotice5 <br /> <br />'",,"ne:1 C?per BaSIn :J.,es are ~ fully <br />de....eiopea. ." <br />ne OJ>.ra tmg Cm.na .re. ""d <br />~:-:r:'Uld remain. fleXible enolJih to <br />dccommodale Wide vanatioD.l in <br />~...droio'uc condinoDS. &Ild tb.e!e.iare. <br />n~eci not oe modified to at"~2te <br />a\'olda.oce of .spills. Ex.pected reservoir <br />ievei. and rt.U of spills wU1 be <br />.ddr....d dunng preparaoOD ai ..ch <br />....OP. Sufficient flexibility eJU&U in th. <br />current Operaung Criteria ta allow <br />development of ADP"s ...;th desired <br />r:ok. of .pill. <br />Issue 5: Whal .boWd be included in <br />the GCDElS ~nd whether NEPA <br />compliance ror the current review of the <br />Operating Crill!na will be combiDed <br />with the GCDElS. <br />Anoiysis: 11>e GCDElS is a NEPA <br />.ffort currently underway 10 _ <br />alternative operation. at Glm Curyua <br />Dallf;' ". <br />Those issues which are pe1"'tilLt!:Dt to <br />Gl.n Canyon Dam operanona.n bein8 <br />addres.ed in the GCDElS. !:uaes which <br />are pertlllenlto other lpecifiC reaches of <br />the nver or specific facilities DI' <br />pertinent to da.ity or sbort.CI!I"!D <br />opera nons would be _, ".....fly addressed <br />in NEPA 8"alyses of the specific <br />projec~ or faciUties involved. the NEPA <br />compliance to be accomplished oa <br />results of the review of the Openatins <br />Cnt.ria ,bould not be combiDed with <br />the GCDEl5. <br />Issue Il: Wheth.r the Operalin!l <br />Criteria shouJd take into accoaat <br />riverine conditions be10w Hocrrer Dam <br />alOl1lJ the nver berween ~U"',;,.,~ as <br />well as within the rese!'Y'Oirs. <br />particulariy with repecl !O fish and <br />wildlife, recreation. and otbe!' <br />.nVlrOo.metllai and ecologicaJ factnrs. <br />Ano/ysis: The only Lower Iluia <br />reservoirs to wbicll tile 0pena1in8 <br />Criteria apply ore thOSl! coaa1nIClI!d SlId <br />operat.d uaderthe a\lthority of !be <br />Bould.r Canyoa Project Ad md tbe <br />Bould.r Canyon Proj.ct Adjustmenl Act. <br />The OJ>erating Cril.ria are prtmariIy <br />concern.d with th.lonser.tI!rm "'"ler <br />operations in th. Upp.r and Lower <br />Basins. <br />Flows in the river system from Hoover <br />Oam to M.xico are governed OTenll by <br />the c"mpacl. the Supreme Court Deaee. <br />th. Mexican Wal.r Treaty. Oood coatnlol <br />rqu!atiollS, and C\lnlnlctl with ..ller <br />uaers. Within the limill impoMd by <br />the.se factors and the reservoir space <br />availabl. for regulation. flo_.... aIaa <br />aff.CI.d by power operatio.... F"..h and <br />wildlife, recreation. and environJDental <br />consideration. are taken into accallDt. <br />and Oowa can be modified (ad hava <br />been in the pu') to eaha.ace these <br />proj.ct purposes within the limitl <br />