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Davll 01.", turbine runner Inlpectlon. The consequences of readjusting the plan of operation late In the water year were considered; aftar discussion and consultation with Interested agencIes and groups, scheduled summer releases were reduced II') order to meet a minimum objective from Lake Powoll of 6,23 million ocre-fee\. The aCluol Inflow Into Lake powell during the summer months was considerably greater than the forecasted Inflow. As a result, by September 30, 1962, tho octlve .torege of Laka Powell was 23,005,000 acro-fool end the aCllve .torage at Laka Mead was 22,766,000 acre-feet. Total release from Lake Powell during water year 1962 was 6,30 million acre-feet. During water year 1962, tho water .upply In the Colorado River Basin was approximately 111 percent of the long-term average, ranging from 132 percent for the Green River above Flaming Gorge Dam 10 100 percent for Ihe Gunnison River abOve Blue Mesa Dam. The malor storage reservoirs In the Colorado River BasIn stayed within the normal operating range during water year 1982, Aggregate Colorado River system storage at the end of the water year was 54,029,000 acre-teet, representing an Irn:rease of 4,456.000 acre-feet from the prevIous year. By the end of \he water year, actIve storage In the system was approximately 96 percent of the January 1 maximum available storage. Projected Plan of Operation Under Criteria-Water Year 1983 Htadgate Rock Dam. Determination of 1'802[.) Storage" Section 602 (a)(3) ot the COlorado River Basin Project Act ot September 30, 1968 (Public Lew 90-537), provide. for Ihe .Iorage of Colorado River water not required to be released under article III (c) end III (d) of the Colorado River Compact in Upper Basin reservoirs, to the extent the Secretary of the Interior (Secretary) finds It necessary to assure compact deliveries without Impairment of annual consumptive uses In the Upper Basin. Article II 01 the' 'Criteria tor Coordinated Long-Range Operation ot Colorado River Re.ervolrs" (Operating Criteria) provldee thaI the annual plan of operation shall Include a determination by the Secretary of tne quanllty of water considered necessary to be In Upper Basin storage as of Seplember 30 of the current year. This determination shall consider all applicable laws and relevant factors Including, but not limited to the following: (a) hletorlc .treamflows; (b) the most critical period ot record; (c) probabilities of water supply; (d) e.tlmeted ruture depletion. In the Upper Basin, Including the effects of recurrence of critical periods of water supply; (e) the "Report of the Committee on Probabllllles and Test Studies to the Task Force on Operating Criteria tor the Colorado Rlvar," daled Oclober 30, 1969, and such addltlonsl studies as the Secretary deems necessary; (f) the necessity to assure that Upper Basin consumptive uses are not Impaired because of Transformers. failure to store suffIcient water to assure dellverle. under Section 602 (a)(l ) and (2) ot Public Law 90-537, Taking In10 consIderation these relevant factors, the Secretary has determined that the active storage In Upper Baaln reser'lolrs forecast for September 30, 1963, exceeds the "602(a) Storage" requirement under any reasonable range of assumptions which might be applied to those Items previously listed. Therelore, the accumulation of "602(a) Storage" Is not the criterIon governIng the release of water during the current year. Maxlcan Traaty Obligations Annual calendar year schedules of monthly deliverIes of water In the IImltrophe section of the Colorado River. allotted In accordance with the Me,clcan Water Treaty sIgned In 1944, are formulated by the Mexican Section and presented to the United States Section, International Boundary and Water Commission (CommIssIon), before the beginning ot each calendar year. 3