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WSP09753
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Last modified
1/26/2010 2:55:37 PM
Creation date
10/12/2006 3:54:40 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8220.101.09
Description
Glen Canyon Dam/Lake Powell
State
AZ
Basin
Colorado Mainstem
Date
1/1/1997
Title
Reviews of Sufficient Progress in Implementation of the Elements of the Reasonable and Prudent Alternative-Biological Opinion
Water Supply Pro - Doc Type
Biological Opinion
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<br />" <br /> <br />PROGRESS REVIEW -IMPLEMENTATION OF THE GLEN CANYON DAM OPERATIONS <br />BIOLOGICAL OPINION <br /> <br />December 5, 1997 <br /> <br />The followin9 summary of progress made in implementation of the Glen Canyon Dam Biological <br />Opinion was originally prepared on November 27, 1996, concluding progress to that date had <br />been sufficient. You responded on April 3, 1997 in disagreement with that conclusion. The <br />summary has been updated to reflect the current status of elements of the biological opinion. Of <br />the 7 elements of the biological opinion, 3 have been completed, 3 are currently on going, 1 has <br />had a preliminary work initiated. <br /> <br />1 - Adaptive Management Program (AMP) <br /> <br />The Record of Decision on the Environmental Impact Statement on the Operations of Glen <br />Canyon Dam was signed on October 9, 1996, formally sanctioning the preferred altemative, <br />including the AMP and the Grand Canyon Research and Monitoring Center. Through the efforts <br />of the Transition Work Group, which was organized in the interim to continue work on the AMP, a <br />charter was developed and put into place establishing the AMWG as a Federal Advisory <br />Committee. Steve Magnussen has been appointed as the Secretary's designee, Committee <br />members have been designated for the 25 participants, and the first Adaptive Management Work <br />Group meeting was held on September 10 and 11, 1997, The AMWG establish a Technical <br />Work Group, which has been meeting regularly. <br /> <br />This element of the biological opinion has been completed. <br /> <br />1.A - A Program of Experimental Flows <br /> <br />The RPA recommends that a program of experimental flows be carried out, including: high <br />steady flows in the spring, and low steady flows in summer. <br /> <br />A beach/habitat building flow of 45,000 cfs, including appropriate up and down ramps, was <br />conducted in March, 1996. Prior to conducting this flow, National Environmental Policy Act <br />(NEPA) compliance, in the form of an environmental assessment (Reclamation, February, 1996); <br />and, Endangered Species Act consultation through preparation of a biological assessment (BOR, <br />November 1995) and a biological opinion (FWS, November, 1995) were required because the <br />ROD had not been signed. A full research program to evaluate this experimental flow <br />accompanied the release. These compliance and research activities required substantial staff <br />time and effort" as well as financial resources. The final reports analyzing the effects of the <br />habitat/beach building flow, including peer review, were completed December 31, 1996. Final <br />analysis and integration of the data will require approximately one additional year and should be <br />available in late 1997. A symposium was held April 2-3, 1997 by the Grand Canyon Monitoring <br />and Research Center to report preliminary results of the test flow. <br /> <br />In addition, a 48-hour short duration high release test flow was conducted November 3 through <br />November 5, 1997, in response to unusually high inflow of sediment from the Paria River. This <br />action was designed to conserve sediment resources as identified in the EIS and the BO, <br />However, the test flow recommended by the AMWG was outside the parameters originally <br />consulted on under the Endangered Species Act, and to which the National Environmental Policy <br />Act had been applied. Due to the take of endangered humpback chub and Kanab ambersnail, <br />biological assessment (BOR, November 1997) and a Biological Opinion (FWS, November 1997), <br />as well as the required NEPA evaluation in the form of a categorical exclusion checklist was <br />completed. <br />
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