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<br /> <br />. -. ... <br /> <br />4~<J.. <br /> <br />II' Oltn" It \ 1'/1 Y <br /> <br />61 <br /> <br />.sample. as the res~'n'uir is sharply strlltitit'1:\ each stlmmer. and the <br />top 50 fCl:'t of stomve, only 11 Iwr cent of the watt'r depth. is 25 <br />per cent of the presl:'nt total storage :lnd :W per cellt of the active <br />:<torage ('ont('uts of the "I':'''l"voir. <br /> <br />TOTAL I'u,- ,..."L. CULO' <br />I'J'~UL\U' T..T'I. U,"\ff I'!ton: HUlt "'l'r.c. <br />(IHI 'OUl>' U'HI"I','~ II.H(>",-- ..n, n ,,,...,. <br />P.P.\!. 1'.1'.01. 1'_1'.\'- /'.1'.\1. /',1',\1. !\ <br />112<J-tf, M~ p. 121 271, 71 101 <br />8.:11)-1;; 00, 31.; 121 26\ {,9 ':16 <br />Th('re IS thus illdicIit~'1:1 an incrt'ast' in Lake :\Il'ad salinit\ anti <br />hardnes... during tht> .....:':11', due to tht' hdow.normal runoff of the <br />I:\st four Yt':lrs sinet' 1!l.t2, th(! ('unent intlow beiu)! the lowest re- <br />('ent ye.-lr with 6:t p~'r CCllt of normal. This inCrf'llSt' in salinity is <br />only temporary :lnd tht' tn'ud will be rcvt'rst.d as snOIl as .a St:'HSO!1 <br />of :\hove-normal tlood rUllolf occurs. The sli}!ht worst'nillg of tht:' <br />qualit~. of the n'servoir ,;foraj{t', t'\'en ",hilt, the outtlnw from Lakt' <br />:'-Jt':ui impro\'t>t! in quality :IS nwntioncd, was due to tht' db:ehargl:'. <br />in effect, of th.. top 20-fnot ,.;tmtllm of ft,lati\'l'ly purl' watt'r during <br />the currcllt Yl'nr. as a lH't lowerin)! of thi' watl'r h~\'\'1 of thi;o; amount <br />was rl'cordl"!. As the top Ino f('l't of stor:l}!e now {'ontain,.; 50 ppm <br />higher tot:\1 ;o;olills than OIH' .\'t'1I1' ago (bottom sample;o; :-:h(l\\'ill~ <br />little or 110 ('hall}!e). the salinity alld hardne;o;s of Colorado Hh'er <br />w.lter at tht, :ll/lIl'duct int:lkf' will llt'l'(';o;::;al'ily show :l. material in- <br />l'rt'<ll'ie during the Ill'xt Yl'ar or mol't', bt'fore it n~sumption of the <br />long-rllll)!l' trl'nd of imJlron~mt'nt in Colorado H.i\'cr wuter quality <br />eMl be nllticipah'tl. <br /> <br />,\ <br /> <br /> <br />~ <br /> <br />l,,/omrl'l lti"IT l,dol/' J'ltl'ko' Dam <br /> <br />