Analysis - Proposed Conditions NOAA 24-hr D 100 YR-C Rainfall=9.48" Prepared by Civil Core Consulting Printed 12/19/2025 HydroCAD® 10.20-8a s/n 13637 © 2025 HydroCAD Software Solutions LLC Page 292

Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH=Delmarva, Split Pervious/Imperv. UI as Pervious Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method

Runoff by SCS TR-20 method, UH=Delmarva, Split Pervious/Imperv. UI as Pervious Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method
Subcatchment2S: DA-P1 PERVOUSRunoff Area=1.220 ac 0.00% Impervious Runoff Depth=1.83" Flow Length=525' Tc=14.2 min CN=39/0 Runoff=1.06 cfs 8,124 cf
Subcatchment3S: DA-P3 PERVOUSRunoff Area=0.680 ac 0.00% Impervious Runoff Depth=1.83" Flow Length=363' Tc=11.5 min CN=39/0 Runoff=0.66 cfs 4,528 cf
Subcatchment4S: DA-P2 PERVOUSRunoff Area=0.430 ac 0.00% Impervious Runoff Depth=1.83" Flow Length=168' Slope=0.0300'/' Tc=8.7 min CN=39/0 Runoff=0.49 cfs 2,863 cf
Subcatchment6S: DA-P3 IMPERVOUSRunoff Area=0.200 ac 100.00% Impervious Runoff Depth=9.24" Flow Length=155' Tc=4.3 min CN=0/98 Runoff=1.65 cfs 6,708 cf
Subcatchment7S: DA-P2 IMPERVOUSRunoff Area=0.190 ac 100.00% Impervious Runoff Depth=9.24" Flow Length=172' Tc=4.3 min CN=0/98 Runoff=1.57 cfs 6,372 cf
Subcatchment8S: DA-P1 IMPERVOUSRunoff Area=0.400 ac 100.00% Impervious Runoff Depth=9.24" Flow Length=372' Slope=0.0200'/' Tc=2.5 min CN=0/98 Runoff=3.73 cfs 13,416 cf
Subcatchment14S: LOT 11 RoofRunoff Area=3,000 sf 100.00% Impervious Runoff Depth=9.24" Flow Length=40' Tc=0.3 min CN=0/98 Runoff=0.69 cfs 2,310 cf
Pond 2P: Subsurface Infiltration Basin 1 Discarded=0.57 cfs 22,343 cf Primary=0.00 cfs 0 cf Outflow=0.57 cfs 22,343 cf
Pond 5P: BIORETENTIONBASIN 1APeak Elev=95.10' Storage=7,644 cf Inflow=4.20 cfs 21,540 cf Outflow=1.89 cfs 20,033 cf
Pond 6P: BIORETENTIONBASIN 2APeak Elev=95.54' Storage=178 cf Inflow=0.49 cfs 2,863 cf Outflow=0.49 cfs 2,817 cf
Pond 8P: INFILTRATIONBASIN 3 Discarded=0.27 cfs 10,720 cf Primary=0.07 cfs 413 cf Outflow=0.34 cfs 11,133 cf
Pond 10P: PERVOUS PAVEMENT2BPeak Elev=94.88' Storage=1,105 cf Inflow=1.57 cfs 6,372 cf Outflow=1.44 cfs 6,368 cf
Pond 15P: PERVOUS PAVEMENT3BPeak Elev=94.89' Storage=1,076 cf Inflow=1.65 cfs 6,708 cf Outflow=1.53 cfs 6,704 cf
Pond 33P: INFILTRATIONBASIN 2 Discarded=0.20 cfs 8,204 cf Primary=0.10 cfs 981 cf Outflow=0.29 cfs 9,185 cf
Pond 42P: BIORENTIONBASIN 3APeak Elev=94.54' Storage=532 cf Inflow=0.66 cfs 4,528 cf Outflow=0.60 cfs 4,429 cf
Link 32L: POA1Inflow=0.00 cfs 0 cf Primary=0.00 cfs 0 cf

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