Analysis - Proposed Conditions NOAA 24-hr D 100 YR-F Rainfall=11.41" Prepared by Civil Core Consulting Printed 12/19/2025 HydroCAD® 10.20-8a s/n 13637 © 2025 HydroCAD Software Solutions LLC Page 363

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 1K-20 method, OH=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=2.87" Flow Length=525' Tc=14.2 min CN=39/0 Runoff=1.88 cfs 12,697 cf
Subcatchment3S: DA-P3 PERVOUSRunoff Area=0.680 ac 0.00% Impervious Runoff Depth=2.87" Flow Length=363' Tc=11.5 min CN=39/0 Runoff=1.18 cfs 7,077 cf
Subcatchment4S: DA-P2 PERVOUSRunoff Area=0.430 ac 0.00% Impervious Runoff Depth=2.87" Flow Length=168' Slope=0.0300 /' Tc=8.7 min CN=39/0 Runoff=0.86 cfs 4,475 cf
Subcatchment6S: DA-P3 IMPERVOUSRunoff Area=0.200 ac 100.00% Impervious Runoff Depth=11.17" Flow Length=155' Tc=4.3 min CN=0/98 Runoff=1.98 cfs 8,108 cf
Subcatchment7S: DA-P2 IMPERVOUSRunoff Area=0.190 ac 100.00% Impervious Runoff Depth=11.17" Flow Length=172' Tc=4.3 min CN=0/98 Runoff=1.89 cfs 7,703 cf
Subcatchment8S: DA-P1 IMPERVOUSRunoff Area=0.400 ac 100.00% Impervious Runoff Depth=11.17" Flow Length=372' Slope=0.0200 /' Tc=2.5 min CN=0/98 Runoff=4.49 cfs 16,217 cf
Subcatchment14S: LOT 11 RoofRunoff Area=3,000 sf 100.00% Impervious Runoff Depth=11.17" Flow Length=40' Tc=0.3 min CN=0/98 Runoff=0.83 cfs 2,792 cf
Pond 2P: Subsurface Infiltration Basin 1Peak Elev=92.62' Storage=7,159 cf Inflow=4.40 cfs 30,199 cf Discarded=0.57 cfs 29,874 cf Primary=0.25 cfs 325 cf Outflow=0.82 cfs 30,199 cf
Pond 5P: BIORETENTIONBASIN 1APeak Elev=95.17' Storage=7,760 cf Inflow=5.50 cfs 28,914 cf Outflow=4.12 cfs 27,407 cf
Pond 6P: BIORETENTIONBASIN 2APeak Elev=95.56' Storage=183 cf Inflow=0.86 cfs 4,475 cf Outflow=0.86 cfs 4,428 cf
Pond 8P: INFILTRATIONBASIN 3Peak Elev=94.40' Storage=4,201 cf Inflow=2.66 cfs 15,082 cf Discarded=0.27 cfs 12,583 cf Primary=0.20 cfs 2,499 cf Outflow=0.47 cfs 15,082 cf
Pond 10P: PERVIOUS PAVEMENT2BPeak Elev=94.90' Storage=1,145 cf Inflow=1.89 cfs 7,703 cf Outflow=1.76 cfs 7,699 cf
Pond 15P: PERVIOUS PAVEMENT3BPeak Elev=94.90' Storage=1,116 cf Inflow=1.98 cfs 8,108 cf Outflow=1.86 cfs 8,105 cf
Pond 33P: INFILTRATIONBASIN 2Peak Elev=94.71' Storage=3,760 cf Inflow=2.57 cfs 12,127 cf Discarded=0.24 cfs 9,837 cf Primary=0.25 cfs 2,290 cf Outflow=0.48 cfs 12,127 cf
Pond 42P: BIORENTION BASIN 3APeak Elev=94.57' Storage=560 cf Inflow=1.18 cfs 7,077 cf Outflow=1.17 cfs 6,978 cf
Link 32L: POA1Inflow=0.25 cfs 325 cf Primary=0.25 cfs 325 cf