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<br />, .' .~. -' v~~..~ Ml... 1"& - lL1illl. . -" <br /> <br />64 <br /> <br />CENTRAL ARIZONA PROJECT <br /> <br />are available, and probabilities of wllter supply under J'c('()gnized st.a- <br />tistical procedures. This procedure is consistent with the intelll of the <br />Colorado Hiyer Storage Pl'ojc:ctAct, antI th!. l'ommittee helicyos that <br />it can lie complied with and still provide the Secretary the necessary <br />latitude in determining the extent of stornge l'CflHollahIy required. <br />As the upper ha$in depletions incrl':1se with timp~ the ('ontl'ollillg <br />critical periods will lengthen flnd the rcquil'l~d amounts of carryover <br />storage will increase. It is n~cognizerl that tht' establisJnncllt of re- <br />quirements for en,'ryovP}' storage. cannot be based on critical period <br />considerations alone, but that probabilities of water supply also must <br />he (,lmsidlO'l'ed. .Also, the prodnction of power and energy i!'la re.levant <br />fnetaI' thaI: must he considereo if the tiMl1rinl feasibility of Federal <br />developments in the Colorado Rj'"er B:tsin is to bl' assured, <br />The COHlInittp(' undersl;mds that the language of the proviso in <br />paragraph U~) establishes specific guidelines fol' t.he release of ,,-ateI' <br />a vailahle in exeCbS of eOlllpnct III (c) and (d) requirement::; and <br />watel' required to be stored as pro\-ided ill p:nagrllphs (1), (2), and <br />the first part of on, Before dismIssing the operntill,l! gnidelilles of <br />Pttragl'llpit (H) it should he pointed olit. that during prolonged pc. <br />riods of low runoff there would be no avtdlnhle excess water and JJence <br />these criteria would not. be applicable, During periods of high rUTloff <br />uncI lligh storage content the problems of reservoir operation dealt <br />with in pltragl'aph (:5) lIrc not (,l'it,ieal und their application would <br />Iwt be of m:ljOl' significance, Thus, it is within the intermedinte l'alltres . <br />of rUBol1' and stol'agecontent tbat the critel'ia specified are partieu- <br />In:rly meaningfnL <br />TIm langnage of pllragraph (3) embodies three specific operatiJlg <br />guidelines. The first. (i) provides tJwt jf water excess to the require- <br />ments of paragraphs (1) and (2) is determined to bcnvailab]e~ it <br />shaUbe l'C'leased from Lake PO\wl1 to the extpnt tlwt: it call be reason- <br />ably applied in tIle lower division States to the dome..c;tic lIIle! agl'i- <br />cultural llsesspeeified in article III (e) of the Colorado River ~om- <br />pact:, but no sueh releases of wah~J' will he made from Lake Powell <br />when the activE'. storage therein is less than the active st.orage in Lake <br />Mead, <br />The seeond (ii) has as its objective the distribution of availabJe <br />excess water in if. manner that will equalize ItS nearly as practicable <br />active storage ill Lake :\fend and Lake Powell. The committee be- <br />lieves. that the poHey, herein estfJ.Qlished, of maintaining, so far as POR- <br />sible, equal Retive storage ill Lake Powell and La.,ke .l\fp,ad is c.onsisi,- <br />ent. with good operating practice and is fa,ir and equitable to ooth <br />tJle upper nnd lower basins, A1t1lOUgh there mew he conditions undl'r <br />which it \nmld be dC'sirnblc and advantageous to operate over n 1 imit.ecl <br />period of t.ime!n a manner different tJllllt that. specifipd in phase (ii). <br />parUcnlnrJy \\:hen both Lake Powell and Lake lvfencl have substantial <br />reServes of storage, any problem eaused by application of this cri- <br />terion is J10t l'('g-ardetl as serious. ' <br />The third (iii), to avoid spi1Jing water from Lake Powell, is ohvi- <br />ollsly ('onsishmt w\fh good river management. <br /> <br />,""petion If (b) <br /> <br />Snbspc,tion (b) l'('faiw.; to the seven States l'ompoRing the Colorado <br />Hivel' Busin a nlit-l' in formulating the operating criteria. The pro- <br /> <br />j <br /> <br />I <br />r <br />~ <br />I <br />f <br />. <br />t <br />~ <br />, <br />~ <br />1 <br /> <br />1 <br />r <br />r. <br />r <br />I <br />t <br />. <br />, <br />! <br />~ <br /> <br />'Z~': ~ "-~~lh <br /> <br />I' <br /> <br />posed critel'j <br />Inter than ,[ l <br />othel' <lPprol <br />Therell fter, t <br />and publisJl t. <br />11H> Secret <br />emol'S of Uw <br />port rellectin <br />jected operati <br />Ai'; wltl, an <br />l'ecO.L,'11 i7.cS th;. <br />is authorized <br />crating experi <br />~tare.<;; (Jf the I <br />elj('(~ with the <br />leel i!d bv the G <br />_ These' prov!: <br />mg. or c1l:lngiJ <br />whIle at the sn <br />tion with those <br />cannot he foref <br /> <br />Su'!tion 11 (c) <br /> <br />Subsection (! <br />Project. Act ('i <br />administered iI <br />This provision, <br />operation!'! at a <br />emphasizl~ that <br />factor that mUE <br />water resource <br />reasonablvassm <br />T,he dcvcJopn <br />seCtion 11 not (II <br />ings that were J <br />time the Secl'ct <br />project reservoi: <br />to more efficient <br />gurds the operati <br />the terms of th.:: <br />thereof. The com <br />section is not un <br />RiVe!' com pact: j <br />arti<:le In (e), r <br />guidelines fOI' t h( <br />under article III; <br />litigatioll ill the fl <br /> <br />Section 12(a) <br /> <br />This section rei <br />und the binding r- <br />Th(. upppr basin ri <br />to that basin und(' <br /> <br />f <br /> <br />~ <br />J <br />f <br />~ <br /> <br />RI-1l380--1l7_ <br />