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<br />.l1r H;15JA ~h~A, eV'"'I'~r.,,/;;'" ~ I'l"eG;l'j...-h~ a../kej"7 /i..... .:va-/-er <br />.' ,/ " ',. 6'-"'1' t...c.e- ..... co".J/' ,/ee,1 ;7"4.-. /, /, '<:.J;..;..., 0 <br /> <br />, <br /> <br />. <br /> <br />~ the spring-time lost inflow is returned during the winter. but <br /> <br /> <br />some returns a!l~~und water flow to the Blue River below the dam, <br />"---- ~-- <br /> <br />Tables 1 through 4 and the accompanying graphs show this effect (based on <br /> <br /> <br />measured historic flows) for the four years studied in the EIS. The <br /> <br /> <br />sdditional increment of inflow is well shown in 1978 which was a dry year <br /> <br /> <br />and the reservoir was pulled down more than usual: as shown in Table 4 <br /> <br /> <br />and the graph for 1978. the additional inflow waa about 28 cia in <br /> <br /> <br />December which resulted in a total inflow of 81 cia. <br /> <br />J../~ <br />uJA"d~ <br />~I+' -Y....:... <br />~p.!>'" ......Wj <br />" , ~O, <br />..j-~I" ' <br /> <br />Tables 1 through 4 also show the upstream potential depletions resulting <br /> <br /> <br />from both senior water rights not implemented before 1978 and potential <br /> <br /> <br />depletions from Green Mountain Reservoir water sales. The tables <br /> <br /> <br />indicate that for these years the only months where upstream depletions <br /> <br /> <br />would reduce inflows below 50 cia would be in December 1977 (61-10-3 = 48 <br /> <br /> <br />cfs) and January 1977 (58-8-3 = 47 cfs). <br /> <br />. <br /> <br />This analysis was made on the basis of a'il!rage monthly depletions. The <br /> <br /> <br />maximum depletion resulting from Green Mountain Reservoir water sales is <br /> <br /> <br />shown as 10 cfs while Jin~ta;;~usdepletions could reach 5 or 6 cfa_/ <br /> <br /> <br />Imore,) However. the method of operating Dillon reservoir acts as a buffer <br /> <br /> <br />to average out flue tuations in incoming flows: storage vo lumes cannot be <br /> <br /> <br />measured accurately to closer than 100 acre-feet or more and 100 <br /> <br /> <br />acre-feet is equal to a continuous~ change in inflow for 5 days. <br /> <br />Eugene Rumph <br />November 13. 1985 <br /> <br />. <br /> <br />:f <br /> <br />, . <br /> <br />" <br /> <br />.. <br /> <br />~""" ...,,~ > >x--,__,_ <br /> <br />...~ <br />",.': -^-, '-i:8' <br />~ k_~i>e-dt; J-"~1-~~ <br />