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<br /> <br />W <br />1'0 <br />..... <br />m <br /> <br />how-=v.;!t"' to hy;'''thc::;i;:c th.u: r,roundwatcr in the arc." tr.:lvel:;; .:.looZ <br />[.:lules or rcl.:lt~ci l:r...:turc z.ones, di::.;::;olvcs out Galt::; principally <br />fl'om the l).Jt".:1J.ox fortn..1tion, becomes heated by dccp-ly.lng intruGive <br />bodies. and returnS to the surface as warm. 641inc Gprings. <br /> <br />D.'VESTIGATIO:-lS <br /> <br />\,'or'k .......'1Z begun on this ::;c:,pcnt of the Col.or:l<io River \Jater Quality <br />I;.lil::oVCr.,.;~,~ ?-...".;l....m in :.p:-il 1972. The 1nieial ch:"u::;t i..clud..:d rcvic.... <br />of all knO'o..'n nvailablc d.:lta. contact with loc.:11 w3ccr-oricntcd pcrf:on:i. <br />and .:In on-thc-&round app~.Jis."l of the .arca. Thi::; preliminary cvalu.:l- <br />cion yielded fifteen sprin~s whose flows could be collected by conven- <br />tional methods for convcy3ncC to o'l dcs<l.11nation trc."tmcn~ plant. The~c <br />included ten springs in th~ G!cnwood Springs vicinity, four sprin~s near <br />Dots~ro. and one at South Canyon Creek. Sub~equcntly the amenable G?r1ngs <br />~~r~ C$timated at eighteen with four additional springs located 1n the <br />Dotscro area, and discounting thc spring on South Canyon Creek. <br /> <br />The flo....s of these sprinz,s h::l.vC been measured nnd samples collected <br />monthly bc:;;inning in A=,ril 1972 except for the month of June \Jhcn Clost <br />of t:1C sprinss ....ere inundated by sprin::; runoff of the Colorado River. <br />The :otal dissolved solids content of thc samples has been detcr~ined <br />by dry weicht analysis in the Grand Junction Projccts Office laboratory. <br />Che~ic~l analyses of the sa~?lcs have been made in the Regional Office <br />laboratory to provide the planners ....ith data associated with the selec. <br />tion of a suitable desalting process or.processes, copies of these <br />analyses follows. A su~~ry of the data collected during this period <br />including the average total' dissolved solids of the sa~plcs by area <br />and tbeir daily and annual load by tons is shown in the following table. <br /> <br /> <br />5 <br />