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<br />, . <br />'OO'2~.33 <br /> <br />LIST OF FIGURES (continued) <br /> <br />I' <br /> <br />Figure 16. Alternative 10: EOM total reservoir contents, augmentation pool contents <br />and balance of contents in Steamboat Lake and Elkhead Reservoir . , . . . . . , , . . , ' 62 <br /> <br />Figure 17. Alternative II: EOM total reservoir contents, augmentation pool contents <br />and balance of contents in Steamboat Lake, Elkhead Reservoir and <br />Stagecoach Reservoir, . . . . ' . . . . . ' . . . . . . , . ' . . . ' . . . , . . . . , . , . . . . . . . ' , , . . ' 63 <br /> <br />Figure 18. Base flow hydro graphs for an extremely dry year (1977) under historic and <br />future augmented and unaugmented conditions, where the duration of <br />augmentation would have been supply-limited to 61 days at 50 cfs but would <br />not have been supply-limited at 33 cfs . . ' . . . . . . . . , . . . ' . . . . , . , . ' , . . . , , ' , . . . 77 <br /> <br />Figure 19. Base-flow hydrographs during a moderately dry year (1940-41), under <br />historic and future augmented and unaugmented conditions, where the <br />duration of augmentation is not supply-limited at 50 cfs (both summer and <br />winter augmentation is shown) .",......,."..,.."................,... 78 <br /> <br />Figure 20. Schematic of proposed new outlet structure at Elkhead Dam, showing <br />configuration of intakes and fish screens , . . . . . . . . . ' . , . , . . . . , . . . . . . . . , , . , . . 96 <br /> <br />Figure 21. Diversity indices of benthic macroinvertebrates as indicators of water <br />quality: Number of sample sites in each range of indices (adapted from <br />Wentz and Steele 1980) . . . , . . . . . , . . . . . . . . . . . . . , . . . . . , .' . , . . . . . . , . , , . . 115 <br /> <br />Figure 22. Diversity indices of benthic macroinvertebrates as a function of distance <br />upstream from the mouth of the Yampa River ...'...,.,.,.,.",.....,,'.. 116 <br /> <br />Figure 23. Specific conductance in the Yampa and Little Snake rivers, Colorado and <br />Wyoming, August-September 1975 and August 1976 .,.,.,................117 <br /> <br />Figure 24. Specific conductance (C) vs. flow (Q), Yampa River at Steamboat Springs <br />during base-flow and peak-flow conditions, April-September 1977 . . . . . . . . . . , . 117 <br /> <br />Figure 25. Human population in Routt and Moffat counties, Colorado, 1970-2000 (U.S. <br />Census) and 2010-2020 (Colorado Department of Local Affairs forecast) .,....151 <br /> <br />Figure 26. Increase in the number of jobs and percent change by economic sector in <br />Routt and Moffat counties, Colorado, between 1970 and 2000, . .. . . . . . . . .... , 154 <br /> <br />LJ I <br />~ i <br />r, <br /> <br />Figure 27. Change in employment by different economic sectors in Routt and Moffat <br />counties, Colorado, between 1970 (6,051 jobs) and 2000 (26,105 jobs) , . . . ' . . . . 155 <br /> <br />Figure 28. Salinity/soil permeability hazards as functions of specific conductance and <br />sodium adsorption ratio in irrigation water, with reference to produced water <br />from CD Powder River Basin and ~ Scotty Lake CBNG (adapted from <br /> <br />Schafer 200 I) . . . , , . . . . . . . , , . . . . . , . . . , . . . , . . , . ' . . . . , . , . . , . , ' . . . , , , . . 181 <br /> <br />Management Plan for Endangered Fishes in the Yampa River Basin <br /> <br />XIV <br />