Revised Stormwater Management Report

[Project Name Description Analysis Date BMP or LID Type West Essex Highlands [West Orange, Essex Coun 05/31/24 ae 3 a neter's Pai Parameter Value Unit Parameter Symbol Value Unit Parameter Symbol Value Unit Empty Portion BMP Area lof RWC under PostD | ERWC 0.39 Jin paces of nak Qdesign | 0.30 Natural Recharge: ui BMP Effective Depth, ERWC Modified to , inches of Rainfall ; this is the design variable Jconsider dEXC EDRWC [eons |" to capture Pdesion [moceant” Upper level of the EMP Empty Portion ‘ surface (negative if above Jof RWC under infil. | RERWC | 0.00 [in jeeonaiee Broviied 174 fin ground) BMP vg. over Imp. Area eee Eh Depth of lower surface of Runoff Captured a In BMP, must be>=dBMPu JAvg. over imp, Area 3 Post-development Land [Segment Location of BMP Location is distributed| Jor undetermined LCULATION CHECK MESS: Volume Balance-> Solve Problem BMP Check---> OK dEXC Check—> OK to satisfy Annual Recharge BMP Volume: arameters from System P Post-D Deficit Recharge (or desired recharge 2 uel aM: Recharge volume) [ si BMP Location—-> Location is selected as distributed or undetermined Post-D Impervious Area Ava BMP Recharge ec | pera i (or target Impervious Area) 9 4 Efficiency Recharged | " 4 Rainfall Root Zone Water Capacity Rwe 237 bi lbecame Runoff hs hy |Pdesign is accurate only after EMP dimensions are updated to make rech volume= deficit volume. The portion RWC Modified to fauna consider dEXC RWC |e infiltrated Sa ly Jot BMP infitation price > fing and the area occupied by BMP oro ignored in these caleulatons. Results are eeRunoff alc Rector Crector aeRO ocharped 44% |y sensetve io GBM, make sure GBMP selected is small enough for BMP te emp in ess then 3 days. Ferland FeRainfall JAverage Annual P Pavg #0 In Recharged SoEiln Segment Location of EMP if you select “impervious areas” RUVC wil be minimal but not zero as determined by Recharge Requirement @ it ln lover Imp. Area tne soil ype and a shallew root zane fr this Land Cover alowing consideration of lateral flow and ater losses, How to solve for different recharge volumes: By default the spreadsheet assigns the values of total "der" and "Aimp" on this page. This allows solution for a single BMP to handle the entire recharge To solve fora smaller BMP or a LID-IMP to imp” from the “Annual Recharge” sheet to ity and then solve for