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<br />SITES
<br />~TE'
<br />SITE?
<br />SITE 8
<br />
<br />600
<br />
<br />EXPlANA lION
<br />~TE ,
<br />
<br />600
<br />
<br />-
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<br />"Xl
<br />
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<br />
<br />300
<br />
<br />-
<br />
<br />STREAMFlOW AT SITE 1
<br />
<br />ONDIJFMAM
<br />1994 1995
<br />Figure 3. Monthly sallmty at SIX Slles on the Colorado River and dally streamflow at s.le I,
<br />Julv 1994-Seotember 1995
<br />
<br />200
<br />
<br />"Xl
<br />
<br />,
<br />
<br />,
<br />
<br />8
<br />
<br />:\llhl1u!-,hJJ1l<:rcn<:c..in ....~.d;J) '.Ilinil)
<br />h.:lw~""n 'Ilc\ I ,IIlJ ~ ,"cr.' ..mall. '.Il1ml) I'or
<br />15nflhc 1',1.....'..'\..1) ',lmrl....."a..I".."'.rat..n..
<br />2 rh;tn"l'rl<' Ilti,!! ~I Th." ..hghll) l"....w
<br />".Iii nIl) <II "I.':! pmh"hl) \\.1\ <:.lu.....J hy the
<br />Jl\cr'I,,"ofat\oUl ].5(M)cuhH:k"I~r",'<:""J
<br />of wal,'f fwm lh... Culor;IJll RIH"r ;lnJ hy
<br />Inflo....lmm I'lalcau('r"I...J..lllg, ]10...[......"'"
<br />,lie.. I and 2. Salinit) In 1'1,llcauCr,'d.. 1,:<"o...r-
<br />allyi....lighlly 1".......rlh;minlh..CnjoraJo
<br />RiH'r. ami J. ,m;t11 JIIUlI"f1 in ,.lImn) lIllhl'
<br />......r<:r.Jcpkl<'Jn.\l':hnflheri\erISe\IUenl
<br />
<br />S.1linil~ In 'led.!} '.1fl1pk> r(llkrleu
<br />!rnmJul} throu1-'ho,':h.t-cT ItN~al'lles 1 and
<br />-' diU not e\,'eeu the 700-_S"0 milligram> p..:r
<br />liter Ihreshnld 1\'\d InragriculfUrall,l"se,
<br />SalimI} ins;unpksfwmlh,''>C,ites,houldt-.c
<br />Ihesamea'lhl"ahml~ In lhl' "alndi\eneu
<br />lrom lhe (\ll"r;ld" RI\er fl'r Gr:md \'allt'~ 1m.
<br />gal.'rs, Sile 1 is aN'uI b mLks upstream fwm
<br />lhe dl\erSl"n pomt ror Ihe G""~rnment
<br />Hlghlint' Canal. and 'Ill: -' is 1nml1:dIJld~
<br />d"....n'lream lr,'m the UI\....r'I.'" ,Illlduref"r
<br />the Gr;lnJ Valle~ Canal. Salimi} ".I' aN'uI
<br />700 milligranl\ po,'T Iller in Ih... ";lmrl...s rt'l.
<br />krled in S(llemt-.cral 'lIe, I and .~. /'IuI [hat
<br />\>.J,aflerlhelmgalilln-eJ,"nhJJ...nJeJ
<br />
<br />Thef'l)'''II-led"t'ert\.'{I'l\'' n.\lural
<br />slre.\mtln.... m lQQJ ,In salimI}' m lh... Col.'rJU'l
<br />RIH'r t>..'t....een CJm<,., and the GunnJ,(lo Ri\er
<br />I,ite, 1-5lrT<,I-;IN} "<'Te r.\TtJall} ..If"-'tl-}
<br />n:"-'rH'irn:I....\,t., \hlfllhl\ ,tT<'.\I1lll.''',at
<br />"11...1 (tlr \lay. Junt'..md July ....ere.NW
<br />71lp..:r<:"OI'lfl,'ng-Ienn nlt.nthly fl..", f"T
<br />
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<br />
<br />1,
<br />
<br />
<br />,
<br />
<br />.
<br />
<br />s
<br />
<br />,
<br />
<br />11J..4-'U.anJ....ed;ly ,..linilY f..rJul~;l1 site
<br />"'a, high...r Ih.lIl f"r mu'l 'ampl..s n.lleded io
<br />prnitlu,}ear, Juring luly It<.'''',''er.'tre;Jm-
<br />IImn!"r ,\ugu,tlhwugh:-:",eml'><:r I'J<)~
<br />"'er\'X~'" ](l~ f'l'r,'entlllthe 1..ng.tern1
<br />momhly 11"...., fl'f I"..l~-'j~ al 'lie I Wedl~
<br />';JIlIlllY ft1fth,lse m"nth,al ,II,' I ....;JSc.,mpa.
<br />r;tNt' III hi'h'n..'a] 'ahnil~ k\l'l, tor Iht' 'am...
<br />
<br />""
<br />
<br />30
<br />
<br />month, Rl'ka)4" lrl'm T\......nl>if'o in thl'l'ppcr
<br />(\,I..r"Jo 1<1\l.'T 8;t,mUp'lr<,.1I1l l'n>rn ltk.'
<br />~ Gr;JnJVa]ley.'u,'ha,Grt'en\1t'unlamanJ
<br />25 8 RUt'dll<e,,'r.olrs,..:oulJha\l'aJllutiunt:IfI',.1
<br />t:j on ';Jllm!~ In thcl(lloraJol<lwT,<"pedally
<br />~ dunng dE;> year, 8........d on ...bla c"l1e..:too I-~
<br />e: lhl' l'SGS. "'...[l'r rdra)4.J horn thu,,-, 1....0
<br />20 ttl re'I'n"lf'o lypl<:all~ ha' saltnll} ofk" than
<br />"
<br />() ~oo nlj]lt~ratll' p..:r IlleT f-kgmlllng 1Illate
<br />.
<br />:::. July 1'~J~, rek<t,...., In>rtIt-..th f\..SCf"\Olf'o ....erc
<br />U 1Il,'!ea,ed.J.ll<.lthe,elllae;lsedre!ea"-,,aug_
<br />" @
<br />. menteJ 11".... 1Il1he C,,]Of;]du Rlh'r In .-\ul1u,t
<br />~ ]Y<J~. [ntal rck..,,-, In>m(;rt'..-n \l,'untalO aoJ
<br />~. I<uedll<t:.....n..ir' "'t:rt: "N'Ul ~3 pcrC"Ill11f!he
<br />10 ~ monlhly II.,,, 10 lhee..I.'rado RI\eral ,it,' l.
<br />,
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<br />Comparison of 1994-95 Data
<br />to Historical Data
<br />
<br />o
<br />
<br />The l'SGS has ..:olk<:l<'d ,alinity Jala fl'T
<br />man} ~ear'at'J\e] In\'arCanll'll)anJat sileX
<br />lnI'OIIlh,'ColnraJo-l'l;thS[;Jklllll'lunlhe
<br />Cnl"T<td,.I<I\er, S.tlinllyJ;lIa:Jllst'lhSlll"in
<br />July ]'N~"...rl'hlgh":llmpan:JI"hi'lOrica]
<br />J"l:Jt'orPJt.t,I-'1.'11st..cau'eollh,.t>...I.'....nOffilal
<br />'tr....:mJtlo.... in IhemCf. S:t11Illty.tl ,ite, I and
<br />X I.'rthe rl'rnalllJCf"tl'N~\\crt' nlll unusual
<br />....hl.n ,.,ullp"r...d to thl' hl'loncal J..[a_ Th....
<br />high anJ prlllungl.J 'Ilt'" [lId[ rulltlt'f Ilf I 'N5
<br />..:;IU.....JI.'.... 'alilll[~ lIllhl'Clll,'rad.ll<i\erfwnl
<br />lun.:- 10 .:"ugu'l Sahmt~ I,'r 'lIt' I' duno!! Junc,
<br />luly...ndAugusl I'I<J5lhg. -'I......., IO"t'rthan
<br />lhl,,<t]lIllty 1O'...mr1c,,,'oll<'<:[cJthO't'nhllllhs
<br />dunng 1'/0'1-'1-'
<br />
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<br /> """ .
<br /> . .
<br /> . .
<br /> 7"' .
<br /> .
<br />"
<br />w .
<br />" . ^
<br />0 700
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<br />w
<br />.
<br />~
<br />, '"'
<br /><
<br />"
<br />C
<br />0
<br />~
<br />, 600
<br />.
<br />
<br />
<br />,.
<br />" ,"'
<br />,
<br />~
<br /><
<br />~
<br /> ""
<br /> ,
<br /> ,
<br /> '"' ,
<br /> '"", "
<br />Figure 4.
<br />
<br />-..- SlTI::2
<br />
<br />-_- 5fTE3
<br />--":,,...... SITE.
<br />-.- SITE 5
<br />
<br />'520aJ15101S~a3151015~n~5101520~
<br />July AuguSl 5ecTember Oc100er
<br />""
<br />Weekly salinity at S,les t throtJgh 5. July-November 1994
<br />
<br />315101520
<br />.........,
<br />
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