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-D Open Space D Hyd. No. 1 Hydrograph Type = NRCS Runoff Peak Flow = 2.457 cfs Storm Frequency = 10-yr Time to Peak = 12.18 hrs Time Interval = 1 min Runoff Volume = 9,562 cuft Drainage Area = 0.65 ac Curve Number = 80.00 Tc Method = User Time of Conc. (Tc) = 13.0 min Total Rainfall = 6.37 in Design Storm = NOAA-D Storm Duration = 24 hrs Shape Factor = 484 Qp = 2.457 cfs 3 2 Q (cfs) 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)