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6/25/96 ... 12:55 PM Camp Dresser & McKee Inc. TABLE 3.16 Colorado River Flow Reductions at the Top of the 15-Mile Reach Estimated Impacts to Critical Habitat Water Depths by Future Ute Water Diversions Replacement of the Plateau Creek Pipeline Habitat: Eddy Alternate Transect ID: Eddy No. 1 Transect: 5 Summer Au ust -October Winter November -March Current Future Net Change in Depth Due to Current Future Net Change in Depth Due to Conditions Conditions District Diversions Conditions Conditions District Diversions ft ft ft in ft ft ft in Statistics Maximum Habitat De th Maximum Habitat De th Minimum 0.00 0.00 0.00 0.00 7.90 7.86 (0.04) (0.47) Average 6.45 6.38 (0.07) (0.82) 8.79 8.77 (0.02) (0.25) Maximum 10.46 10.44 (0.02) (0.26) 9.66 9.64 (0.01) (0.15) USFWS Suitable °h of Months Max Depth 2 Net Change % of Months Max Depth 2 Net Change De the Suita ble De th Due to Ute Suitable De th Due to Ute Mean - S.E. 2.9 ft 88% 86% -2% 2.9 ft 100% 100% 0% Mean 3.4 ft 82% 82% 0% 3.6 ft 100% 100% 0% Mean + S.E. 3.9 ft 82% 82% 0% 4.3 ft 100% 100% 0% Notes: (1) Maximum water depths were computed on a monthly basis over the 1975-1993 study period using Colorado River streamflows at the top of the 15-mile reach and flow versus depth relationships established by the USFWS (Table 3 of May 1995 USFWS report Relationships Between Flow and Rare Fish Habitat in the '15-Mile Reach' of the Upper Colorado River. (2) Curcent conditions represent maximum depths in transact at Ute Water's current level of water use, adjusted for prior Section 7 consultations. (3) Future conditions represent maximum depths predicted after deducting Ute Waters additional diversions upstream of the 15-mile reach under future demands. (4) USFWS suitable depths from Table 2 of May 1995 report. (5) S.E. - standani error of estimate (equal to the standard deviation if data are normally distributed). HAB-ED5.XLS ... Summary