Revised Stormwater Management Report

[Project Name Description Analysis Date [BMP or LID Type West Essex Highlands West Orange, Essex County 05/31/24 f re ram a Ss. Pai Parameter Symbol Value t Parameter Symbol Value Unit Parameter Symbol Value Unit Empty Portion BMP Area ABMP sa.ft lof RWC under Post-D | ERWC 0.39 fin pees of Runott Qdesign | 0.05 fin to capture Natural Recharge EWP Effective Depth, ERWC Modified to inches of Rainfall this is the desian variable_| GMP ie consider dEXC EDRWO (gmc) to capture Peleslon |ianoae Upper level of the BMP Empty Portion surface (negative if above | dBMPu in Jof RWC under infit. | RERWC | 0.04 |in Pepe alg ead 4.6 fin arcana) BMP wg. over Imp. Area Seales [Depth of lower surface of Runoff Captured BMP, must be>=aBMPu_| _%=XC in |Avg. overimp. Area ome” Post-development Land Segment Location of BMP . SegBMP lunitless input Zero if Location is distebuted or undetermined 2 ; iP Caleula LCULATION CHECK MESSAGES — Volume Balance> Solve Problem to satisfy Annual Recharge BMP Volume: dBMP Check-—> OK tc ia ance Cs EXC Check--> OK Post-D Deficit Recharge (or desired recharge Vdet cu.ft sisal Recharge 14,828 lout volume) BMP Location» Location is selected as distributed or undetermined Represents 7 Peers | an ron gg Romane aa [ptien ee iid Recharged Rainfall Root Zone Water Capacity RWC el! ie lbecame Runoff 78.6% % |Pdesign is accurate only after SMP dimensions are updated to make rech volume= deficit volume. The portion RWG Modified to eRunoff consider dEXC DRWE oz" infitrated C0 4 Jct StF intitration pnorto fing andthe area occupied by BMP are ignored in those ealeutations Results aro , ecRunoff kinetic Rector Gefactor seve Ro units Recharged ne i [sensetive to GBMP, make sure dBMP selected is small enough for BMP to empty in less than 3 days. nd JAverage Annual P Pav 49.0 |in eRaintal 0.8% i a Recharged é O7 [Segment Location of BMP i you select "impervious areas” RWC wal be minimal but not zero as determined by Recharge Requirement é en lover Imp. Area the sol type and a s 4 zone for this Land Cover allowing consideration of lateral flaw and other losses. I"Vder' and "Aimp" ITo solve for a sm. How to solve for different recharge volumes: By default the spreadsheet assigns the values of total deficit recharge volume "Vder’ and tolal proposed impervious area “Aimp" from the "Annual Recharge” sheet to this page. This allows solution for a single BMP to

spreadsheet assigns the values of total deficit recharge volume "Vder’ and tolal proposed impervious area “Aimp" from the "Annual Recharge” sheet to this page. This allows solution for a single BMP to handle the entire recharge requirement assuming the runoff from entire impervious area is available to the BMP. BMP or a LID-IMP to recharge only part cf the recharge requirement, set Vdef to your target value and Aimp to impervious area directly connected to your |ABMP or dBMP. To go back to the default configuration clik the "Default Vdef & Aimp" button. itration facility and then solve for