J_2024 05 09_West Orange Stormwater Management Plan

Post-Developed (O-1B) NJ DEP 2-hr WQ Rainfall=1.25", P2=3.42" West Orange HydroCAD_Post Printed 5/13/2024 Page 20 Prepared by Burns & McDonnell HydroCAD® 10.20-4b s/n 08510 © 2023 HydroCAD Software Solutions LLC Primary OutFlow Max=0.12 cfs @ 1.80 hrs HW=596.68' TW=590.78' (Dynamic Tailwater) 1=SD-21 Outlet (Elevation F) (Passes 0.12 cfs of 8.12 cfs potential flow) 2=Water Quatity (Elevation G) (Orifice Controls 0.12 cfs @ 3.66 fps) 3=Water Quantity (Elevation H) ( Controls 0.00 cfs) 4=Overflow Grate (Elevation I) ( Controls 0.00 cfs) Pond 1P: BR-01 Flow (cfs) Hydrograph 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Primary 0.44 cfs Inflow Area=0.567 ac Peak Elev=596.68' Storage=487 cf 0.12 cfs 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Time (hours) 15 16 17 18 19 20 21 22 23 24