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WSP08459
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Last modified
1/26/2010 2:48:18 PM
Creation date
10/12/2006 2:59:45 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8240.300.11
Description
San Juan River Recovery Program - Coordination Committee
State
CO
Basin
San Juan/Dolores
Water Division
7
Date
7/1/2001
Title
Finding of No Significant Impact Low Flow Test San Juan River
Water Supply Pro - Doc Type
EIS
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<br />\. ll"U <br /> <br />As part of the test, the following monitoring will occur: <br /> <br />. Aerial photos will be taken and evaluated from the dam to the confluence of the Animas <br />River, <br />. Water temperatures before, during and after the test will be monitored at six locations <br />from the dam to the Hammond Diversion, Water quality data will be collected <br />downstream from Navajo Dam. <br />. New Mexico Game and Fish Department will document fisherman use and catch rates in <br />the trout fishery downstream from the reservoir. <br />. The river will be floated from the dam to at least the Hammond Diversion to observe and <br />document changes in the river; including navigability, impacts to diversion structures, and <br />recreation, <br />. The river will be accessed at several locations between the dam and Shiprock, NM to <br />visually assess flow, habitat conditions, and impacts to the operation of water diversion <br />structures, and recreation, Recreation impacts will be considered downstream to the Clay <br />Hills takeout. <br />. Flow data will be compiled from existing gage stations along the river. <br />. Stage (river elevation) and wetted perimeter readings will be taken along the river, <br />. Resource specialists will document observations in memoranda. <br /> <br />The test is of a much shorter duration than would occur under the SJRBRIP flow <br />recommendations, so Reclamation believes impacts will be of a short-term, reversible nature, <br />However, Reclamation will maintain the option of ending the test early (or increasing releases <br />somewhere between 250 and 300 cfs) if significant problems begin to occm with water <br />diversions, fisheries, or other resources, The following events would be considered by <br />Reclamation in any decision to terminate the test: <br /> <br />. Notification from the New Mexico State Engineer that 250 cfs releases were not <br />sufficient to protect senior water rights downstream, <br />. Notification from the New Mexico State Office of the Fish and Wildlife Service that <br />endangered species were being adversely affected to the degree that the test should be <br />terminated, <br />. Notification from the New Mexico Department of Game and Fish that significant trout <br />losses were occurring within the downstream trout fishery or determination that water <br />quality criteria such as oxygen, temperature, and pH were being exceeded as described in <br />the final EA. <br />. Notification from the New Mexico State Office of the Fish and Wildlife Service or the <br />New Mexico Department of Game and Fish that native fishes between Navajo Dam and <br />the confluence of the Animas River were being affected to the degree that the test should <br />be terminated, ' <br />. Notification from responsible governmental agencies that public health or safety was <br />being compromised by the test. <br />. D,S.G,S, gage data showing flows below 500 cfs downstream from Farmington, <br /> <br />3 <br />
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