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<br />'HI II,
<br />2002
<br />
<br />there i, no .:on~en,u, on "hm ll1onilOr.
<br />ing apprn;lL'he, alld lahor;llory methtxh
<br />,huu]d be u,ed to meawrc 't;md..trd,
<br />.:ompJi:mt'l.:, mu.:h k.... on \\hal nUnl('ri-
<br />.:aJ limih would be Jppropriate.
<br />
<br />Re..cT\oir \\:ller ljua[jt~ model, "ere
<br />evaluated h~ rnakhing the a..'urnplioll'
<br />and glweming eljuatiom 01 ea.:h model
<br />to 'lUdy re'eT\oir t'harat'h:ri..tit", For
<br />a fe" t'a~,.lhe lllodeh "ere a.:tuall~
<br />run and re..ulh e\alu;lted, ~h:xkh for
<br />te,ting "ere ,e1C".:tt'd ha-.ed on the ahil.
<br />ity 10 ha,-e a "orking [mx1,.J ....'thin Ihe
<br />time .:on..trainh I ::!..\ nl(lflth'l and the
<br />;Ibility 10 model di"olved oxygen .md
<br />tot;11 pho'phnrou" .... hit'h are the t'au,e..
<br />of watC'r 4uality t'Ollt'enh for the opera.
<br />[or.. and rn.ll1.J.ger.., The ,det'ted modd..
<br />hy Chapra and Cmale. .1lId Vollellwei.
<br />
<br />COLORADO \VATER
<br />
<br />der ....ere then applied to thret' rt',eT\oir..
<br />I Aurora Re,er.lHr. Hor,ettx)th Re,er.-oir.
<br />;Illd Standley Llkt' I that h;ld readil~ ;lvai]-
<br />;Ibk mOllllOring dal;llo evalualt' the ;Ibili[~
<br />to ;tJeljuately model the t'on.,tituenh of
<br />':I\[\t'em ;Illd the ml--,del", ea,e ot u,e. In
<br />addition Ihe CE-QUAL-W:! moJel.....\,
<br />applied 10 ,\UrIlra Re-..en;oirl,nly, Ba,ed
<br />on Ihe model .:hara.:len'lit'~ and re,u]l'>,
<br />Chilpra ;md C;m;!!.:', ilIode! illt.'orporallllg
<br />,eJimellt feedba.:k appear' llUhtf;!\'tlT-
<br />;lble for IInpkmelllali\lO It'r mo,1 01 the
<br />re-,crH'lf'o 1\X,kin,!! ;lllow ,'0..1. 10.... time
<br />r"l.juirement ,olution,.
<br />
<br />TIle uVl.'rall.:ondu,ioll of Ihe ,tud~ i,
<br />[hat fUluTt, l.:oUaburatilln on rnonitorlllg I'
<br />ab,()lu[d~ c,,-..enlLallnr dlet'llve mall-
<br />;lgen1\'nl 01 Front Range drink.in,!!- w;lter
<br />,upply rl.',cr\'Olr', ':'f'Ct"Ially in a rl.'gul;l-
<br />
<br />llecemher
<br />
<br />lOT) ...:ning, Collahoralilln on modding
<br />m;IY prow helpful a" well. though the
<br />\aI)'lllg t"hafJt'leri,tin of the rt"en'oir~
<br />ma~ m;tke ;Ipp!icalioll of a ,ingle model
<br />ralher difli,:ult. f-or lll;tnagelllent,
<br />mlonnatl\lll e\t'hange on thl.' dfc.:ti\"t'-
<br />nc.... of managemcnt altemati\'t'" i, the
<br />logit'alliN 'Iep, !-:ntren,'heJ lo.:al poli-
<br />t'ie." on re..::re;ltional u...: ot re"en-oip,
<br />in p;lni.:ular. may make a t'OmmOll
<br />;lpproa,'h to managcment diflit'ult in
<br />lhe nl.'ar lenn, The Colorado Lake and
<br />RC'I.'T\'oir \1ana,!!l.'rTll.'nt ,\"o,,:ialion,
<br />CLRM.\, t'ominue, lU be an dfet"live
<br />h'rum for int'omlatioll c\t:hange ;lnd is
<br />lhl.' Iikd~ forum for fu[ure t.:(\llahora-
<br />tion I'll lI}{llliloring. managCll1l.'nt. and
<br />nuxlelll1f'.
<br />
<br />
<br />-"-..r1'"---..r....___""^--...r"'-....~~.....r-_....J'--.#-/''--J''"',_...r-"''---../ -...r^--.......J
<br />
<br />'Ii :"UTRIE:\TS A:"1l TROl'llIC STATUS I:"
<br />OFF-CIU\:\:\EL STORAGE RESER\'OIRS
<br />OF TilE SOllTIII'L\TTE RIVER, COLORAIlO
<br />
<br />..
<br />-W' ....
<br />~ r
<br />.J '~
<br />~ '
<br />
<br />hy E,Il. /lall and J,D, Stt'llllic/o.
<br />f)eparl",t'1I1 of I~'arllt Hf'.HHlrcf'.\, Colorado Stalf' l.:"i\'eT\ity
<br />
<br />Olf.,:hallnel s[or;\ge re,er.oir" ;I]ong
<br />the S"luth PI;ltl" Rin:r dOwII,tre;l1ll
<br />of Den\ er, CI,lorad"l art' olten tilled
<br />"ith river willer Ih.ll m;l~ t.:onlalll
<br />high t:llnt:enlr;l[illn, of nilTog....n and
<br />phll'phorou' IUS(iS 19IJSI. .\net:dolal
<br />e\'id",n.:1.' ,uggl.',t, In;l[ Ihe't' r".....n.oif'o
<br />on Ihe ea'tem ("olora"lo plain, ;Irl.'
<br />e,perietlt.'ill,!! eUlrophi.:ation, ,\lg.lt'
<br />bloom, ,1Ild li,ll kill, h;l\e Det"n
<br />rqxmed. EU(f\'phk;ltIOll llllhe..e
<br />re...:noir' may Hnpalr thl.' recrt';lliollal
<br />and aquati.: tit'", hcn.:ti.:ial u,e...
<br />
<br />From [A'mer 10 Ball;I~', Coll.r;ld\l,
<br />tol.11 pho'phorous ITP, con....entrallon'
<br />in Ih.: main ,tern (lIth,. Suuth PhLlt<:
<br />Rivcr ~cn<:r;!l1~ I.'\t.e....d th.: U.S.
<br />En\iwlllllelllill Pn'tr:.:tiun J\gell':~
<br />I CSEP,\ I r<:t'ollllllt'ndalion 01 11.'.... th.ln
<br />07,:' !J!-"/L for river, llahle II (USE!>.\
<br />~iM)l.llemandet ~(Jo:!" OIl(' 'lUd~ 01
<br />th~' S,,'uth Platte Ri'er in I \1<J:, found
<br />TI' t'(lll.:",ntralion.. grt'aler th:m ~,I.IO
<br />J.l,!;/L lllllllt'Ji.ltely down,[ream of
<br />D.:1l\'er. .... ilh t'Ol1t'entr.ltloll' det'rea'lIlg
<br />tu .lppTtl\II1Mtd~ :'00 J.l,!!/L near Ba1l;\t-
<br />
<br />(Lilke 1")')0). Oll-t'hannel"tor;lg"
<br />re'I.'T"\Olf'o III (he South Plane Ri'er
<br />regil1n dn.... Ihlre;lm of D,'n,,'r are oft<:n
<br />ti]led With lhi, high-nulril.'lU k\e]
<br />\~.\ter IUSGS 1995\. Th('re i, little
<br />IIlfOmlatlun \lll nUlrienh ;md ;llga,' in
<br />Ihl.' plain' rl.'gion ",llhe Suuth Plalte
<br />Ib,in tLS(iS 1"/li51,
<br />
<br />The prinr ;lppropriatwll "ater TIght..
<br />,y 'l<:lTl ,Illd the rh~ 'I.:a] 1l;lture olth,'
<br />Soulh PI.llte Ri"'r re,ult III 'pc:.:ilk
<br />lime, III \~hit'h wal,'r ll1ana~er, are
<br />
<br />1';lral1lt'll'r
<br />
<br />('ahlt' I: EI'.\ t'au,ali'l' and rl"p"ll-.t' nUITlt'rit: 'aluc' fur EI:urct!illn \ iEI'.\ 1Ullll
<br />
<br />IP
<br />T\
<br />
<br />Chloroph~ II-a
<br />Turt>l\111~ \,r Tran'p;\rt'n.:~
<br />
<br />J{hcr~ and ~lrcam'
<br />hi5 !J!!/L
<br />S~O!J~L
<br />J.I)..lu~L
<br />s\TU
<br />
<br />I.akt', and J{c't'r\nir,
<br />.13,ugil.
<br />:'itlO!JgJL_
<br />1.3!J~L
<br />I.Jrnelef'o
<br />
<br />7
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