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<br />II <br />I <br /> <br />I <br /> <br />To determine the Conejos Basin exchange potential, the 1941-1967 Conejos Basin <br /> <br /> <br />outflows were first adjusted to reflect the estimated flow which would have occurred <br /> <br /> <br />with Rio Grande Compact administration. The difference between total outflow and <br /> <br /> <br />estimated non-exchangeable outflow was tabulated as Conejos Basin exchange <br /> <br /> <br />potential. The annual Conejos Basin exchange potential was estimated to range from <br /> <br /> <br />less than 10,000 af to greater than 300,000 af and average approximately 115,000 <br /> <br /> <br />af to 121,000 af, depending on the non-exchangeable flow level. <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />The amount of the Closed Basin Project deliveries which could be exchanged into <br /> <br /> <br />the Conejos was estimated by comparing the Conejos Basin exchange potential with <br /> <br /> <br />the annual theoretical Closed Basin Project deliveries for the Conejos Basin (shown <br /> <br /> <br />in Table VI-5 in Section VI). This comparison indicated that in greater than 75 <br /> <br /> <br />percent of the years, the full Closed Basin Project delivery for the Conejos Basin <br /> <br /> <br />is exchangeable in the year in which it occurs. On an average annual basis, at <br /> <br /> <br />least 90 percent of the Closed Basin Project delivery is exchangeable when it <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />occurs. <br /> <br />The deliveries which were not exchangeable in the years in which they <br /> <br />occurred were carried as credits for a maximum of four years prior to being <br />exchanged into the Conejos Basin. <br /> <br />I <br /> <br />With the results of the Closed Basin Project/Conejos Basin exchange investigation, <br /> <br /> <br />a modeling assumption was made that the Conejos allocation of Closed Basin Project <br /> <br /> <br />deliveries was fully exchangeable into the Conejos Basin if the allocation was less <br /> <br />I <br /> <br />I <br /> <br />than or equal to the Conej os' Rio Grande Compact obligation. <br /> <br />If the Conej os <br /> <br />I <br /> <br />allocation was greater than the Conejos' Rio Grande Compact obligation, it was <br /> <br /> <br />assumed that the exchange would be limited to the Conejos obligation and that the <br /> <br /> <br />surplus Conejos allocation would accrue as a Rio Grande Compact credit to the <br /> <br /> <br />Conejos Basin. <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />40 <br /> <br />I <br /> <br />I <br />