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<br />l\:iTIl':IPATED EFuCTS OF ADriITTOi{.o\L DE'JELr"',r-l.Z!rr:
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<br />are k!!o....-:: to be of mn.rine origin. Practica.lly all of '~e lands in +J':e
<br />:;a.'/a.;o !:-::dian Irriga":ior, Fro,~ee'" wnich '.:ould cor,"'_ribu~e return flow a.':
<br />.;--;e Eo,~back. hO""'e-.rer. ar~ of fres~ water ori.:-:-ir, ....i +.:-. low sali:d ty and
<br />alkalir.i .... as deter.:rl:~ed by soil borin~s. ~le es~,i!!".ated deple+.ion is
<br />250.000 acre-fee'" az:::ua.lly ....ith a re:'ur:; flo'..t of 258,000 acre.feef:
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<br />-rile effec. of .,:--,e Sa" iuari-f'ha:na. 3.r,d :;a./"a,io ~ndia.r, rrrigaf~ior, pro,:-
<br />ec's in the qU1111 "',:.. of water at "',his s~.ation ."ould be s::lall sir:ce trle
<br />....a..er is pr<:ser:t.1;, of' 'Ie,.;" good quali~.. and ~'he S.fl,r,ior: is located only
<br />'!l si:ar: distar,ce 1'elow ~he :;-11'/"a:o :'11::1 ....:~ere ',,;ere -..rould be r;c re":-ur,;
<br />nows, T'.e i!;crellse i~1 concer,'rat:ion ....ould to;- from ".22 '.orl pf;;r 'lcre-
<br />foo~ presen.' 'a 0.23 ta~ per acre-foo. for bo+-. ~ero and 2 ',on per acre
<br />pickup.
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<br />(;o.....een San ~t:a;, Riw;r near Arcr-;ulc"a arId Sat1 illa:-: Pi./er
<br />!"lear ~1 ulT
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<br />A:drr..'3.s-L"l Plata Fro,-iect. c'olorado_.ieW' ~.:~xico, __ ~"'e hr.i:r.as-La Plata
<br />Pro.iect will develop nows of ~,r:~ Ar.imas llnd 'a Plata Ri....er ':;:/s.,en:s for
<br />irrigation. mur:icipal and ir:dustrial use, recreatior:. a.~:1 fi!:lh and ....ild-
<br />life conser...a'.lo:,. I"hc pro,iee"': '..rill $uppl,/ wa',er '0 4,. .500 ar.:re.:> of
<br />Ol:!W land r:trd 25.'.00 acres of pre:::e:"ly irl'"i 'Il~e,i 1a:,d. 111e fIe.... lar.d
<br />....ill i ":clude 1'7,200 acres or : ndia.!'. land. .e "Of a1 new depl etion will
<br />a.rrount to r:early 14t;.OOl acre-fee~, f'ro.'ec' rea',ures illclude fOur
<br />s',ora,--:e da::13, lengtr;y CIl:1als, and several di.,ersior. darns.
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<br />Preliminary ....'iter qualit.y 5';.uuies indicat-,~ "",hat irrir;a....ior, will
<br />::0. preser:t a~w par~icular quali ._..: proble:::. and the !l'ldi t.ic!"!al return
<br />flo.... at tte s':ate line r.la.:/ be SOIr.eW":Hl' lr::pro','ed o'/er "',~e prC5ent,
<br />
<br />~xpansio" :ioi:'."back.--i'his direct :U'fersior: "::.0 :ndia;, lrmds ad.jacent
<br />',0 the ::;an iuan i~i'Jer will resul': i:-, a r,ew de;:le_io: of atout 10.000
<br />aCH".fee. a:::1u9.11:;. These lands, in t!:e -;icini"y of SLiprock. NeW'
<br />l'~exico. l";a./e teen ::!eveloped in small blocks by +.iJe :-ureau of Indian
<br />Affairs oyer a period of years ....-i th furf-,her oexpa.::sio!~ plar,:1ed for tte
<br />fu.,ure. T~e seepage a:.d re".ur:l 1'lows ret.ur:: direc<. t.o the Sa~ Juan
<br />?'i'/er, cut the quali .,y of !,bese nows :,as :-.o~ teen de+:er:nir,ed.
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<br />Four '-~or:ers Fo.....erplar.':.__I... :;or"~.W'':;!"ster:: :ie.... '.'exico. a la.rge
<br />s'~am-elec.ric powerpJ.a::t. ....::1-:", ,as leen par~ially cor.:pleted by lita1
<br />Tn.er::a~io,.al for.:::erly l1':an ""o:'.s. ruc' ion ""omparl:;), for :he r-:ava,~o 1r.-
<br />d1a:. Tribe 9.:-:-d ":~,e Ari~or.a Fo'..rer A<.;~~,ority. is :-:'OW' using 20.000 aCTe-
<br />ree~ mr of an es'i!l'la'ed 40.000 acre-feoe' ....'er. ~::e pIa:-,' is corr.ple"e.
<br />;:0 sal'" is eY.?ected ',0 re.'urr wi.,!; future di.roersio::s.
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<br />""1";e .:;9.:1 :ua:. Ri'.-er :-.~ar :oluff .--:a.-;e ....ould ce affec~ed 10;,- all devel-
<br />or:;.en-s 0:-, .1;e Sa;: Tuar. f?j.;er abo';e ~ ,e .c~e. ~spe~ially "'o~acle ....ould
<br />be returr no....s fro:r, ":r-,e ~~aYa.;o India,. 1rri;;a-iol1 P!'O.;ect. :::e resul:;.
<br />....ould te a:1 i'.crease fro:n 0.63 to o.Aq a~ld 1.23 t,O:-_~ ~r acre.fOOf. re-
<br />srec~i.-Iel:;. for .]-:e zero and 2-:'0:: p-=r a.c!"e pickup fro::) r.e.... irri6atedla:1ds.
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