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<br />INI'RorucTlar:
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<br />D. .'~ope
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<br />1'11L repurt lncludc's infOrrriition OIl the l'c:al '_:i or 'dater in the
<br />(;0....or8do River Basin dmm to I",reria1 Da.:n for the )1.1-66 period. The
<br />...a:.er q'-lalit.y sit:.uation below Lo:;pcrial fu.'"!l is covered ir, the February
<br />1~163 report tit.led.. "~;pecial 3tudieI'--Delivery of Water 'to ~!exico,"
<br />pre~ed by th~ Department of the Interior, Bureau of Reclamation, Re-
<br />gion 'j. A dese:'iplior, of the then exIst.ing proj'" ....: bela.... HCO','CT Dam
<br />__ aL;o lEcluded in that report.
<br />
<br />Inforration OJ. 5 (Lnk:rlt load at '(~veral key c:ta:,ion, i: included
<br />to ::;how the effe(:t t.hf.c :~torage reservoir;:; have h!:l.d in de TClOI.sing sedi-
<br />ment in the ColoraJo River.
<br />
<br />1:.. . :Llte Standards
<br />
<br />Natio!l\Jidt: attl'ut.ion has bef.m. focused on water qualit.y in recent
<br />Y0ar!l. particulurly in the ih:::ter:, States wher, u 'combination of 10.... run-
<br />off' and i:lcr'ea;::ed pollution ha::: e::;pha~i::ed thl': p:coblem. The Colorado
<br />River thu>.i far hur not. been polluted by indu.stl'le::: to the t,xtent some of
<br />..he easten, river::-, have been; ho....ever. thE:' limited suppl:/ in the Colo-
<br />r:ldo River hu!: made it nccez,~ary that careful uttentior, be give:l to qual-
<br />ity beeau;:e of exten:}ive u::;e::: by agricult.ure an,1. T!:'.Jr.:'ipalitle::..
<br />
<br />~~ince each US" entail.s ,om' alteration of "the wuter, ::lose surveil-
<br />lance of the '.}U<'1.1ity is bccomi.!1[" a n'''''','s:.'.ity. Mo::t. 'luall~~y problems ar{>
<br />linked directly ....ith luantity--....hen thcluWltity bcrpases,the quality
<br />imprave~" With the in[~rea::;cd use of ....atel' ';.hL situatlo!", L reversed
<br />a:1Q the problem of ro'_nt.aining t:,e requir.~d qual'ty bc::omc:: '-~:'it.i'~al.
<br />
<br />I3t.".aU~e of thE ,~.ritical need :Cor Co'd pal:tj
<br />Gover:..'!le~t ha:: ellfic:t.ed lcgislutior. requl:,ir--.b stu.tl.:
<br />arC. fo:' the l_n'_ er:,tat, 't.rearm':.
<br />
<br />...at;cr I the Fedc-r8.l
<br />to ,ablish ~tand-
<br />
<br />The ba,,-l,,' ?edel''l.l 'r.'a.ter P lllu'. :on Cant:-ol ;',':t kno....l, a:: Public La'"
<br />81:-6& ',mE na:;scd ::.:. 1,j56. Ame,d..."nent." '..Jere mad!.: J: .1.:-11.;. u!",d(;r Public Law
<br />87-06. In i965 additio1"2" amer.dr.1ent:: w....:ce ~de t:, the 3.'.::t .",e;,; k.'1o....n as
<br />the .....ater -iUalit.y ;'.c~, of L965 (P..lblL:: La...' 89- ",. The :no,,' recent 8.!'!".end-
<br />:;,ent .....a1;; made ir: 1-:.66. Thie; knol."r. !:l.'" th( ....lear, Water- Ee: tor-atioD Act
<br />of 1;66 (Publio La_ 89-753),
<br />
<br />Under ',he Fec.e:'5.1 '\'o'ry.,ter ?u ,.l..U__t i,,-., ;or.t:ro H-'t [i.":"l(,ndeu b:; 'he Viater
<br />Q.uaLt.,. /...:::t 01' ..L965 , ell.::: ;:tat~ ....a;:. r~ql.i.ired (-". .-:> :;t;b!nit. by ctober 2,
<br />..L':J66, a let1;e:- wi' .i.r.tc!",t tJ--,at .,;,:c:~ a st.a'~ " a1'O,'r' lAlbl.,:: hear~r1;.::, would
<br />before JunE' :v, l~7, adopt. water. quaL '~y 1.::1' it ~r. ia applL:able :'0 l::ter-
<br />-~av. -,-lat.er,- a:- purt::.or:.=; :;hereof ',.;ith~n :: _.~:~ ,~'. a::d (2 adopt a plar;
<br />of imp:"'eI:!<.':<tation a::d 12r.~~8rC'e."!:!e~t. of t!"'.t' a:ic-ptv.:.:. ,C'r ~ terill. :r, event the
<br />~tat rEd not a_~.t with:r. the :pecifi\ cl time.' F 1e::"al Govern:-::,-'nt '.res
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