12 2026 02 12 Crestmont CC Stormwater Management Report

Hydrograph Report File: Eagle Rock Existing (Current).hys Hydrology Studio v 3.0.0.39 10-21-2025 EX-2-U Open Space C Hyd. No. 38 Hydrograph Type = NRCS Runoff Peak Flow = 1.876 cfs Storm Frequency = 10-yr Time to Peak = 12.23 hrs Time Interval = 1 min Runoff Volume = 8,243 cuft Drainage Area = 0.86 ac Curve Number = 74.00 Tc Method = User Time of Conc. (Tc) = 18.0 min Total Rainfall = 5.38 in Design Storm = NOAA-D Storm Duration = 24 hrs Shape Factor = 484 Qp = 1.876 cfs 2 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 Q (cfs) 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 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)