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<br />I :\TiWDUCTI Q;.j <br /> <br />W <br />I\J <br />..... <br />.'\:) <br /> <br />~:in.:r~ll ~h)lluti..;)n, cOlll:nonly kno\-,... .'1::; z.1~1n1ty. Is .:. complex b,j=>Ln- <br />....'iJ~ ?robl~.~l th.:lt is bccvmill~~ i.ru;wt"tant to u:::crs of Colorado Riv~r <br />~3tcr. IncrcD.s~d concern and a sense vf urgency to halt the Galinity <br />incre,'lSc h.:lYe been expressed by Federal and State water rc,"ourc.c <br /> <br />ascn.::.cs. <br /> <br />D.H.I ':vllecteJ to the pr...;;cnt ti~c inJic.''lt('!; that ,'lprroxir.l.1.te~y two- <br />tia.....:.> vi ttle tot.:ll s;dt ",I,.;.::o..:n .Jt. :iovyer ~.111l COrllO;:=> lrO~.l l1.'ltu..l1 <br />:::ources. OC chi.=> Iv.ld .1prroxi.l:\.;tccly ti2 percent comes fro:u ciLiiusc <br />!;ourccs such .1::: <o>vcrlanJ ,.unol: and oround W.lter Lnilo\.t, and .:lbout <br />:S percent oribln.ltcs from point source:; including mi.ner.:!l I>prin&G, <br />SeepS, and ab.:lndoncd welle. <br /> <br />Tile l,j..~;..'st [lOi:lt source con:.ributors af di:::solved .solids to the <br />U?per Colo:-.:ldo Kivcr .-.:-c in the reach of the riyer bel~'e('n the mouth <br />of t~c Ra.:lrin~ Fork River at Glcnwood Sprin~s and the ~~uth of the <br />EaGle Kivcr near Dotscro. These contributions arc irom thermal <br />5prin~$ rising in or near th~ bed of t~c river and irom ground vater <br />c...t~r1ni; tll\.;; reach of the river. Inflow-outflow p\'!asurcrucnts indicate <br />this reach oi the river contributes approximately 25.000 acre-feet of <br />water containing over 500,000 ton6 of d16601ved solids annually. <br /> <br /> <br />--z- ~ " ~. <br /> <br />-'~ <br /> <br />- <br /> <br />. <br /> <br />- <br /> <br />-- <br /> <br />?12'4-~27-:4~A Colo..~do aivcr ~ater Quality Im?rove~nt ?robram-Co~orado <br />;iot r;j~.....::ral s?rinb~ in the Jots.::ro dt'e.a: View shO'---1ng th~ i":ov f:-o::::. <br />5~?ILng st~tions dot 20. 30 and 40. <br />wBR l'noto by V. Jetley Februa.ry 22, 1973 <br />