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<br />o GJ'~9C 6 <br /> <br />;; <br /> <br />determined and defined. in e.s muoh e.s operations of John Martin <br />Reservoir. for ita au-thorj.zed purposes of flood oontrol and wa-ter . <br />oonservation. are in-tended -to and will ohange -the his-torio oondi-tions <br />and rela-tions. in general. by deoreasing the total streamflo~volumes <br />inoluding floods. whiJie at. the same time inoree.sing -the wa-ter suppliefl' <br />usable for irrigation in bo-th States. Reoognizing that -the water <br />supplies usable for irrigation.,before John Martin Reservoir began <br />to operate. were measured by the quantities; of water diverted from <br />the Arkansafl' River for direot irrigation and storage purposes by <br />ditohes in both States during the period 190.-19~ the Engineering <br />Collllllittee oompiled the diversion datlll, and presented them to the <br />Compaot Commission. -toge-ther wi-th data concerning total streamflows <br />including floods, and information concerning John Martin Reservoir. <br /> <br />. <br /> <br />4. First allll.lyselll of s-treamflol'f and diversion data were <br />undertaken by -the Engineering Committee to provide information needed <br />in proposed reservoir operations studies. 1JJ.timate objeotives were to <br />estimate the extent by whioh the usable water supplies iDay be inoreased <br />by reason of operations of John Martin Reservoir. In -the absenoe of <br />ins'tructions to -the ccntrary, the EngineeringCommit-tes.' assumed the <br />wa-tersupplies of -the Arkansas River con-te.mpla-tedfor,dbidoa. be-tween <br />Colorado .and Kansas by the proposed inters-t~te.compacttobe ~ters . <br />thator:lgine.1:eiin Coloradowhioh appear ifl;'tlie)rive1'" atCaddoaii~ere~ ","'" <br />they' are 'subject to control and conaervati:ol:l"byJolUt'Martin"ReservOir,"'''''';;'' <br />and: also waters; ~ich appear in the Arkansas River belel'" Caddo.. and above <br />theStateline. which are not subject -to control elr oonservation a-t Caddoa. <br />Initial allll.lysSll were direc-ted -to estimatiilg the quantities elf water that <br />could be diverted by ditchea downs-tream from Caddoa. from supplies en-tering <br />the river between Caddoll and Sta-teline. as,suming -the river flOWl a-t Caddoa <br />to be in-teroepted by s-torage in John Martin Reservoir. Information upon <br />the above assumed baseso was deemed necessary in order -therefJ'Cllll!-to <br />asoertain. next. hoW'muoh of the Ca8do.f][o~ muM berequiredl. to maintain <br />"t~lU:sto!io diyersionsofdi-t~,hes;AoWl1)l~,!'!UIl"iJ;\;;,<1oJ,PJ:'a~~/~):te pro-v:1de , "..,,', <br />,. Sta-te11ne flows; for his-toric 'diversiona",by'''d:tt:Oh.u, in. KaDeN,;." and fiilally.' <br />how muohof the Caddoll flow, previoullly undber,tEidlin either'state might be <br />oonserved and made available for additione.ldiversion and.,inoreased use <br />in both S-tateso through operations of John Martin Reservoir. <br /> <br />5it .' , Resuli;s of first analyses, expressed as averages; for 19011... <br />1942in:unitll'ot lQOO AF ~~J;l1" are~UI!lIl!-I1rizedlbeloWl fori;11e river, <br />seot:lon'Cll.dd'oa, to' S1iate:J:bi.~:ii'oie-therW1-thnullil1ers;( appearimg'in. ' , <br />parentheseeclth8.-t., refeJ:':'tOi;~abt,. frOlll whioht~ clat&.'!'l!l'4I',,,iia.Jcen or .' <br />oomputed. Resulh of.firet;'aneiYee81h$.vebeeil:. r8-arrani~'aiil,i' extended <br />-to the Statel1ne..Garden City section -to' fa.oil1-ta'\:e later oomparieoIlSl <br />with results; or second analyses. <br /> <br />...2. <br /> <br />-l .~, <br />