Revised Stormwater Management Report

[Project Name West Essex Highlands Description [West Oran Parameter Symbol _ Parameter Value — Unit ae Empty Portion BMP Area lof RWC under Post | ERWC 0.39 |in jes oF Rune Qdesign | 0.10 fin Natural Recharge. si BMP Effective Depth, ERWC Modified to inches of Rainfall this is the design variable consider dEXC EORWC | ace” to capture Peesion | genone|" Upper level of the BMP JEmpty Portion ; surface (negative if above lof RWC under Infilt RERWC | 0.00 |in secant ieee 75 ground) BARE vg. over Imp. Area Beiter Depth of lower surface of BMP, must be>=dBMPu Post-development Land Segment Location of BMP ft Zer0 if Loca for undetermined Runoff Captured Avg. over imp. Area 78 in Volume Balance Solve Problem to satisfy Annual Recharge BMP Check-—> OK dEXC Check-—-> OK To solve for a smaller BMP or a LI |ABMP or dBMP. To go back to the def fault configuration clik the "Default Vdef & Aimp" button. P to recharge only part of the recharge requirement, set Vdef to your target value and Aimp to impervious area directly connected to your infiltration facility and then solve for (or desired recharge ea 40,659 Jourt volume) BMP Location--> Location is selected as distributed or undetermined arg BMP Racharge 100.0% |sintivaton (or target Impervious Area) Efficiency Petene? | ; SGRainfal fRodtzone Welar Capacity] WC: 28" lbecame Runoff oe esq accurate only aie BMP dimensions are updated to mske ech vlume= defi volume. The retion RWC Modified to eRunoff consider EXC DRWC jects)" Iinfitrates Looe ot BME i prior to ling and the area occupied by BMP cre ignored in these calculations. Results are ‘ faRunoft ont Feetot Grtacton tbat no units Recharged 2ax % |sensetive to dBMP, make sure dEMP selected is small enough for BMP to empty in less than 3 days. For land a oRainfall Average Annual P Pava he Recharged 18% Ig [Segment Location of BUP i you select “impervious areas" RWC vil be minimal but nol zero a3 determined by Recharge Requirement lover Imp. Area ar 124 [in the sol type and a shallow roat zene for this Land Cover allowing consideration of lateral ow and other losses. ow to selve for different recharge volumes: By default the spreadshest assions the values of total defi recharge volume "VdeP and total proposed imparvious area "Aimp” fom the “Annual Hovhorge’ cheat Te [der and "Aimp* on this page. This allows solution for a single BMP to handle the entire

f total defi recharge volume "VdeP and total proposed imparvious area "Aimp” fom the “Annual Hovhorge’ cheat Te [der and "Aimp* on 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.