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<br />. <br /> <br />. <br /> <br />. <br /> <br />CDM <br /> <br />..,.... <br /> <br />. ,~. 4.... <br /> <br />@ <br />- <br /> <br />~. <br /> <br />~S'NSI <br />~_d.WGt..5.u""..,..._.... <br /> <br />":'\i l.jl.~i <br />-<f~' "" r. <br /> <br />Attachment 2 <br />DRAFT SWSI Methodology for Estimating <br />Available Water Supply <br /> <br />Introduction <br /> <br />As part of thl' Stillewidt;> Welter Supply Initi,ttiH' (S\\"SI). till' ilmount of watl'r that <br />might hl' phy..ically and legally available ior dt'wlopment \,'ill be estimated ,It <br />..,l'Il'cted poinb in L'iKh majm Wdtt;'r basin in Colorado. T,lbll' 1 describes \'MillU:'o watef <br />supply Il'fms that will be llsed in the dl'll'rminiltion of il\"aililblL' supply. <br /> <br /> <br />.ljl~"~...t't:'!:'!~ <br /> <br />.Olill"lf11FirJ.-:.;ll1o;,; <br /> <br />Physcally Available Waler QuantltyOlwaternowlI1glna . USGS SlreamHow5 . Hydrobase <br />(Regulated) fflle! under e~lStll1!l . BaSfl Studies and . SlateMod <br />lVlerallOOSand adlTunistrahon Re"""'s <br />legally Availabl€ Waler Quanllty 01 water that could . SEODfllersiQf1Dala . Hydrobase <br />(Unappropnated) be developed pursuanllo . BaS., Studies and . StaleMod <br /> rttersta!ecOITlIactsw~hOuI Reports <br /> lrlillfVloO!herwaternohts . COSS Datasets <br />NatllraliledStream!1ow Rrvertklwslhall'1QulCOCCllr . SED DiverslOfl Oala . SlateMod <br /> Inlheabsenceothllman . SED ReseM)II' Data <br /> Wl1eNenllOl'1 . USGS Streamliows <br /> <br />USGS - Un~ed Slates GeoIogoeal SliNey <br />SED-State Engll'leersOtllCe <br />COSS - Colorado DeciS01 SuPPOrt System <br />StaleMod - CDSS water resoorces plannng model <br />Hydrobase - SllpportlOg CDSS dalasets <br /> <br />Physically Available Water (A F): the actu,ll/ob:"eT\ni amount of water tltlwing in tht' <br />:"lrt'itI11. This regulait'd tl(lW b a junction of hydmlogy. W,11t'r rights. administration. <br />and other basin operation... including tlw dfl'C!s of stor.1gL' .1tld cOIl\'t;>yalKl' structurt'S. <br /> <br />Legally Available Water (AFl: ttw t'stimail'd dfTlOllllt l)f watl'r that could be <br />dt'wlopl'd without injury to otlwr watl'r rights, Thl' w.lIL'r must bL' jirst physic.lIly <br /><H'dil.1blL'. dnd then thL'lq~i\1 re...trictions to \\'dtt'r must be assL....sl'd k.g.. down..,tn.'tHll <br />cdll. rL'sl'T\'oir fl'll'ast'. etc.) to L'stimdte th.'ll portion that is lmilppmpridtt'd. <br /> <br />Naturalized Streamflow (An: tht' tLlt(tl wall'r supply thilt would hil\"l' bl't'1l d\'i1ililblt.. <br />i1b..,t'nt oj illI hUIllilll intef\'l'lHilln (e.g., dh't'rsion.." ..,lmagl' and rt'lt'i\SL'S. return tlows. <br />colbumpti\"t~ use). :'\'aturalj;,t'd ..,trL'amtlow is a primafY input dati\sl..'t to thl' State~hxi <br />model. fei,,'rrt'd to.1-. "b.bl'tlll\\'." This \'alut' should rt'PfL'st;>nt a thL'llfelical ceiling on <br />,wailabIL'tlL1WS. <br /> <br />." .......:''"'''';'''.'"'.'..". '"".'v,,- <br /> <br />l~" <br />