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Table 10— Contributing Basin No- Breach Model Peak Discharge Estimates and Times Contributing Basin to X Bar 7 Section Modeled Peak Basin Contribution Modeled Time of (rainfall subbasin #) Flow (cfs) as % of Total Peak Peak Flow (MDT) West Fork Little Thompson River 6,143 38.4% 9/12/13, 4:10 AM Upstream of Meadow Dam (3a, 3b) Little Thompson River, Upstream of U5 36 3,312 20.7% 9/12/13, 6:30 AM (2b) West Fork Little Thompson River, Meadow 1,782 11.1% 9/12/13, 2:45 AM Lake to U5 36 (2c) West Fork Little Thompson River, U5 36 to 1,584 9.9% 9/12/13, 5:00 AM North Fork (2a) North Fork Basin (4) 4,162 26.1% 9/12/13, 6:15 AM Rowell Gulch Basin (1) 544 3.4% 9/12/13, 1:50 AM Little Thompson River, Near Bar? 15,997 100% 9/12/13, 5:30 AM Subdivision (Total modeled peak outflow) Notes: Subbasin (SB) designations provided correspond with Figure 8 to show the contributing subbasins to the modeled peak flow values. "Total Peak" flow is the modeled peak flow at the outlet of the model, the X Bar 7 Ranch section (15,997 cfs). The percent contribution of each basin is included to provide a basis of comparison of where the rainfall fell across the entire watershed and to show the relative contributions from those individual basins to the total flow. Due to variation in timing of those peak discharges, the percent basin contributions shown will not total up to an even 100 %. The information shown in Table 10 is presented graphically in Figure 21, where the timing of the flows within subbasins relative to each other and the model outlet can be seen. Report of the September 2013 Little Thompson River Flooding COLORADO and Big Elk Meadows Dam Failures, June 2014 (Revised, Dec 2014) Division of Water Resources Page 30 of 48 Depaoment of Natural Resources ■171rM1 fil9go WIN :1ovilH41ON