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WSP05748
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Last modified
1/26/2010 2:19:43 PM
Creation date
10/12/2006 1:15:14 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8240.200.40.B
Description
Yampa
State
CO
Basin
Yampa/White
Water Division
6
Date
3/5/1990
Author
USFWS
Title
Streamflow Needs of Rare and Endangered Fishes: Yampa River Interim Flow Recommendations
Water Supply Pro - Doc Type
Publication
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<br />. - <br /> <br />, <br /> <br />. <br /> <br />. <br /> <br />Table 1 displays the projects in the baseline for the Little Snake and Yampa <br />Rivers. <br /> <br />Table 1 <br /> <br />Depletion <br /> <br />Yampa River <br />Hayden Power Station <br /> <br />7.1 K acre-feet <br /> <br />Craig Power Station <br /> <br />19.2 K acre-feet <br /> <br />Private Actions <br /> <br />5.9 K acre-feet <br /> <br />Stagecoach Reservoir <br /> <br />12.8 K acre-feet <br /> <br />Little Snake River <br /> <br />Cheyenne Stage I <br />Cheyenne Stage II - Little Snake <br /> <br />8.0 K acre-feet <br /> <br />15.8 K acre-feet <br /> <br />Total Depletion Above Green River Confluence <br /> <br />68.8 K acre-feet <br /> <br />The Service's HYDROSS model was then used to quantify the effects of the above <br />depletions on the Yampa River at Deerlodge Park. The model begins with gage <br />flows for the period 1930 to 1982 and subtracts depletions based on water <br />rights and availability. The results of the HYDROSS run were statistically <br />analyzed and are displayed in Attachment 2. <br /> <br />Several general trends can be identified by comparing Attachments 1 and 2. <br />The general trend is downward, with major reductions taking place in the peak <br />flow months; with smaller depletions in other months. There is also a trend <br />toward augmentation of flows from September through January of dryer years. <br />Table 2 displays these trends. <br /> <br />2 <br />
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