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<br />Chapter I Purpose and Need 5 <br /> <br />appropriations (rather than power revenues) were used to prepare this report and would be <br />used to fund construction of the project. As specified by the Section 8, appropriations for the <br />construction of the temperature control project would be nonreimbursable. The CRSP also <br />prohibits the use of power revenues for construction. The Grand Canyon Protection Act of <br />1992 (Public Law 102-575) authorizes the Secretary of the Interior to use power revenues to <br />fund the ongoing monitoring and adaptive management program. These funds may not be <br />used for construction. <br /> <br />PERMITS REQUIRED <br /> <br />Researchers monitoring the effects of temperature controls would have to obtain pennits <br />from the National Park Service to conduct studies in the river corridor. In addition, those <br />working with threatened or endangered species would have to obtain a pennit from the FWS <br />and Arizona Game and Fish Department, and researchers working with fish or wildlife <br />species would need an Arizona Game and Fish Department pennit. Tribal pennits and other <br />pennits would be obtained as appropriate. <br /> <br />In a similar temperature control modification at Hungry Horse Dam in Montana, the Army <br />Corps of Engineers stated in their February I. 1994, letter to Reclamation, ". . . that if the <br />proposed structures are placed inside the trashrack structures, then no Department of the <br />Army pennit is required for this project." Reclamation would consult with the Army Corps <br />of Engineers to detennine if this project requires a Section 404 pennit under the Clean Water <br />Act. <br /> <br />SeOPING SUMMARY <br /> <br />Temperature control has been a topic of discussion among scientists, researchers, cooperating <br />agencies, and other stakeholders in the Glen Canyon Dam Environmental Impact Statement <br />(EIS) process since early 1991. The Glen Canyon Dam EIS Transition Work Group (TWG), <br />which at the time included representatives of virtually all stakeholders in this process, has <br />discussed temperature controls at several of their meetings. In addition to the nonnal TWG <br />meetings, workshops with representatives of the cooperating agencies and researchers were <br />held in January 1992, April 1992. November 1992, June 1994, and again in October 1994 to <br />discuss temperature controls. These workshops were held to scope the process and issues <br />surrounding the proposed modifications to Glen Canyon Dam. The groups identified a list of <br />resources and issues to be evaluated. The results of these studies and other analyses are <br />included in this report. <br /> <br />There is concern over the ability of science to fully predict the impacts of specific <br />temperature release patterns. Post-project monitoring by the Grand Canyon Monitoring and <br />Research Center and the adaptive management process would be an essential part of the <br />action alternative. Temperature controls at the dam would be another tool to be integrated <br />into the management of the river system. How this temperature control tool will be applied <br />will require an iterative process of thoughtful scientific testing and adaptive management of <br />