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<br />, <br />, <br /> <br />. <br /> <br />. <br /> <br />GVWM Flow Protection Plan <br /> <br />December 19, 1994 <br />4:02pm <br /> <br />DRATI' <br /> <br />of those junior diversions. The only real difference between releasing additional water for the <br />120 cfs right and making replacement releases is how the water is accounted for. The net effect <br />on GMR reservoir is the same; i.e. whether you release water direct1y to the 120 cfs right or <br />replace out of priority consumptive use. Theoretically, by replacing the consumptive use <br />portion, downstream users would not be able to detect upstream junior depletions. <br /> <br />TeChnically speaking, if such a junior GMR HUP beneficiary was in Rifle, Colorado and was <br />called out by the GVIC 120 cfs right the junior right would be required to cease irrigation until <br />replacement releases traveled to their point of diversion (approximately 1 1/2 days travel time). <br />In practice however, the OMID has agreed to supply the shortage to the 120 cfs by operating <br />the check and using some of OMID's tailrace water to temporarily supply the shortage to the <br />120 cfs right until the GMR releases reach GVIC (estimated to be about 3 days). No statute, <br />requires this service by OMID but OMID peIforms this service in a cooperative spirit to <br />facilitate river administration. Check operation does cause OMID and GVWUA'OSS in power <br />revenues and decreases the ability to pump water at the pumping plant when the check is used. <br /> <br />It is important to point out that when the Division 5 Engineer makes releases to GMR HUP <br />beneficiaries, those releases are for the consumptive use portion of the right only, Historically, <br />the Division 5 Engineer has estimated irrigation diversions to be 50 percent consumptive. So <br />for a 40 cfs irrigation diversion, the Division Engineer would release 20 cfs plus conveyance <br />losses from GMR HUP. The Division Engineer has estimated that calling out all non-GMR <br />HUP beneficiarfUpstream ~ junior to the GVIC 120 cfs water right can supplement the flow <br />at the 'Cameo gage by about 200 cfs. <br /> <br />Direct releases to the GVIC 120 cfs right - If all of the non-GMR ~ be?ell~!ll"Yu water \ f- ' <br />rights junior to GVIC's 120 cfs righ~been called ouf~'iht'ii'KfUrJti 'flbVi 0 the rl'V'eT"'1"^""'",-,~J:;:- <br />continues to fall below 2,260 cfs then~releases are made from GMR HUP to the 120 cfs <br />right. Up to 120 cfs of direct releases can be made to the 120 cfs right. So until the natural <br />flow at Cameo falls to 2,140 cfs (2,260 - 120) the GVIC 120 cfs right is the calling or <br />controlling water right. <br /> <br />Administration of the 400 cfs Dower ri!!ht - If the flow at the Cameo gage continues to <br />fall and there is a direct release of 120 cfs to the 120 cfs GVIC junior water right, then the next <br />right that goes into priority in the Cameo group is the 400 cfs power right. There are a few <br />water rights in the water right tabulation between the priority of the GVIC 120 right and the <br />priority of the 400 cfs power right that can be called by the power right. In practice, the junior <br />rights which produce wet water at Cameo are called out by the GVIC 120 cfs right. The 400 cfs <br />power right is not a beneficiary of GMR since it is neither an irrigation nor a domestic use. <br />Consequently, when the natural flow of the river continues to fall, this right receives a decreased <br /> <br />12 <br />