12 2026 02 12 Crestmont CC Stormwater Management Report

Hydrograph Report File: Eagle Rock Existing (Future).hys Hydrology Studio v 3.0.0.39 10-21-2025 EX-1-U Impervious Hyd. No. 15 Hydrograph Type = NRCS Runoff Peak Flow = 33.57 cfs Storm Frequency = 100-yr Time to Peak = 12.12 hrs Time Interval = 1 min Runoff Volume = 125,010 cuft Drainage Area = 2.94 ac Curve Number = 98.00 Tc Method = User Time of Conc. (Tc) = 5.0 min Total Rainfall = 11.60 in Design Storm = NOAA-D Storm Duration = 24 hrs Shape Factor = 484 Qp = 33.57 cfs 38 36 34 32 30 28 26 24 22 20 Q (cfs) 18 16 14 12 10 8 6 4 2 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Time (hrs)