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During a significant portion of the 1975 to 1993 modeling period, reduced flows exceeded USFWS targets. Therefore, make-up flow requirements are also expected to increase at a lesser rate than demands and flow reductions, averaging 3,003 ac-ft by 2015 and 11,103 ac-ft by 2045. The results show that Phase I of the Project will extend to the year 2006 when make-up flows exceed an average of 1500 ac-ft/yr. Phase II will extend to the year 2015 when make-up flows exceed 3000 ac-ft/yr. Finally, Phase III will cover the years from 2016 to 2045. It should be noted however, that the time limits for project phases are based on project diversions, not years. The year when project diversions, based on a 10 year running average (see discussion at the end of this section), meet the designated make up flow requirements for a particular phase will determine when that project phase ends and the next phase begins. Detailed results of the make-up flow calculations are provided in Attachment E for each of the future demand years from 2000 to 2045. Attachment F provides monthly hydrographs of I S-mile reach flows for all 19 years evaluated, showing the adjusted historic flow, the flow after Ute diversions, and the flow after replacement releases, compared to the USFWS flow recommendations for the applicable flow grouping for that-year. Table 3.12 summarizes the calculations for the year 2045 demand and provides an example of the calculation for a typical year (1980). Attachment E.6 has the corresponding detailed results for all 19 years modeled. Shown are the calculated historic flows at the top of the 15-mile reach (column 3), Section 7 consultation adjustments (3.1), future flow reductions by Ute prior to any replacement reservoir releases (4 and 4.1), the replacement releases (6 and 6.1), resulting 15-mile reach flows (7), and net flow reductions (8 and 9) for each study period year. The USFWS flow groupings and monthly flow targets are shown in columns (10) and (11), respectively. Finally, potential make-up requirements are shown in the last three columns (12 to 14). Column (14) presents the make-up flow as a percentage of the adjusted historic flow for each month. Examination of the values in Attachment E.6 reveals that the make-up requirements average only 0.6 percent of the adjusted historic flows. Table 3.13 summarizes the annual results of the evaluation for the year 2045 demands. The table shows that make-up flows would range from 3906 ac-ft/yr to 18,974 ac-ft/yr, averaging 11,103 ac- ft/yr. In addition to the 19-year average, the average values for the years corresponding to each of the USFWS flow groupings are shown at the bottom of the table. The most critical flow grouping is the 80 percent USFWS group, which includes the years between the 50th and 80th percentiles. These are below-average flow years during which Ute water diversions result in significant flow reductions with relatively small benefit from replacement releases. The drought years in the 100 percent group (years between the 80th and 100th percentiles) have smaller make-up flows since during these years the Cameo call results in large replacement releases, negating the impact of Ute Water diversions. Figure 3.17 illustrates the resulting make-up flow requirements graphically. It is important to note that the make-up flows shown in Table 3.11 and Figure 3.16 represent annual average values. During the course of the 19-year simulations, annual values both less than and greater than the averages occurred in any given year. For instance, examination of Attachment E.2 reveals that although the average make-up flow in the year 2005 demand analysis was 1412 ac-ft/yr, CDM Camp Dresser & McKee p 0:18047-1101DOCWPPEND-B.DOC B-I8