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WSP08549
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Last modified
1/26/2010 2:48:40 PM
Creation date
10/12/2006 3:04:27 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8220.105.I
Description
Colorado River-Water Projects-Navajo-Environmental Studies
State
CO
Basin
Colorado Mainstem
Water Division
5
Date
2/25/2004
Title
Navajo Dam EIS-Draft Bio Opinion-Southwestern Water Conservation District
Water Supply Pro - Doc Type
Report/Study
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<br />.c <br /> <br />. <br /> <br />. <br /> <br />water in the San Juan River after it mixes with Animas River water. Because the flow of <br />the Animas River flow is uncontrolled, it is impossible to increase the temperature of <br />Animas River water. During the runoff period, therefore, the temperature of the Navajo <br />release cannot be increased significantly to overcome the affect of the very cold water <br />from the Animas River. The preliminary runs of the temperature model also woiJld <br />suggest that the San Juan River pre-Navajo Dam, did not have water temperatures during <br />the runoff period that were conducive to spawning. <br /> <br />Once the spring runoff is over and the Animas River flow is relatively low, the release of <br />warmer water from Navajo Reservoir could have a greater impact on the water <br />temperature of the San Juan River. <br /> <br />While cold temperatures may be a factor in the recovery of the endangered fish, Navajo <br />Reservoir releases are much less likely to bc the cause of the cold temperatures during the <br />spring, runoff, than, is,high-elevation runoff. <br /> <br />Measures 3 and 4. <br />SWCD is appalled that USFWLS would seek to require USBR to include the <br />southwestern willow flycatcher in the SJRIP. The main reasons that SWCD believes this <br />requirement is totally inappropriate are: <br /> <br />1. The biologists involved in the SJRIP are fish biologists, not bird biologists. If <br />USFWLS believes that the willow flycatcher requires a recovery effort, then <br />USFWLS should approach entities potentially involved with willow flycatcher <br />recovery and seek the creation of a separate recovery program to address avian, <br />rather than piscatorial, issues. The USFWLS does not need to use a heavy- <br />handed approach in starting a separate recovery program, but should lead the <br />effort by presenting infonnation on the need for a willow flycatcher program and <br />recruit participants. <br /> <br />2. The SJRIP is focused on the San Juan River which is habitat for the <br />endangered fish. Thc willow flycatcher habitat covers a far larger area than the <br />San Juan River and requires a much different type of program than the SJRIP. <br /> <br />3. Because the SJRIP is a Congressionally authorized program, in order to include <br />the willow flycatcher, Congress would have to allow this addition. After twelve <br />years of intensive and expensive endangered fish recovery efforts, there are <br />finally small positive signs of fish recovery. Now the USFLWS wants to use <br />some of the limited SJRIP funds to study the willow flycatcher. The ultimate <br />impact of including the willow flycatcher would be a delay in the recovery of the <br />Colorado pikeminnow and the razorback sucker. The Secretary of the Interior <br />supports the SJRIP. Has USFWLS obtained authorization from the Secretary of <br />the Interior to change the basis and purpose of the SJRIP? <br /> <br />4. Those supporting the SJRIP and participating on the Biology and Hydrology <br />Committees are participating only to recover the endangered fish. USFWLS is <br /> <br />Oif)'"'l <br />.I._I <br />
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