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<br />of the Colorado River Compact, but no such releases shall be <br /> <br />made when the active storage in Lake Powell is less than the <br /> <br />active storage in Lake Mead. <br /> <br />" <br /> <br />(b) To maintain, as nearly as practicable, active storage in <br /> <br />~ "1 <br /> <br />Lake Mead equal to the active storage in Lake Powell, and <br /> <br />(c) To avoid anticipated spills from Lake Powell. <br /> <br />(4) In the application of Article 11(3) (b) herein, the annual releases <br /> <br />will be made to the extent that it can be passed through Glen Canyon <br /> <br />Powerplant when operated at the available capability of the powerplant. <br /> <br />Any water thus retained in Lake Powell to avoid bypass of water at the <br /> <br />Glen Canyon Powerplant will be released through the Glen Canyon Power- <br /> <br />plant as soon as practicable to equalize the active storage in Lake <br /> <br />Powell and Lake Mead. <br /> <br />(5) Releases from Lake Powell pursuant to these criteria shall not <br /> <br />prejudice the position of either the Upper or Lower Basin interests <br /> <br />with respect to required deliveries at Lee Ferry pursuant to the <br /> <br />Colorado River Compact." <br /> <br />C. TECHNIQUES IN DETER}IINING 602(a) STORAGE REQUIREMENTS <br /> <br />As an initial effort we hive employed both deterministic sequences of <br />. ~c. ",\.~...5 <br />...___\.,,;~..;r <br />historical runoff and hydrologic parameters derived by st6d~~stic proce- <br /> <br />" <br /> <br />dures to develop what might be limiting values for "602(a) Storage <br /> <br />Requirements." Studies utilizing water supply determined by each of <br /> <br />.< <br /> <br />those methods have recognized future depletion limits and schedules cur- <br /> <br />rently projected by the Bureau of Reclamation and the Colorado River <br /> <br />Basin States. <br />