Revised Stormwater Management Report

[Project Name West Essex High! Recharg lands Description West Orange, Essex Parameters County Analysis Date 05/31/24 nParameters lover imp. Area Parameter Symbol Value Parameter Symbol Value Unit Parameter Symbol Value Unit Empty Portion inches of Runoff BMP Area BMP sq.ft lof RWC under Posto | ERWC 0.39 in ‘ia Qaesign | 0.17 fin Natural Recharge a BMP Effective Depth, ERWC Modified to Inches of Rainf ; this is the design variable_| CMP fe consider dEXC EORWG oe to capture Pdesign | 0.23. [in Upper level of the BMP lEmpty Portion surface (negative if above | dBMPu in lof RWC under Inf RERwc | 0.00 [in poonnae See 11.2 ground) BMP wo..ovetimpssArea es eo [Depth of lower surface of Runoff Captured BMP, mustbe>=dBmPu_| _S&XC en JAvg. over imp. Area ie |Post-development Land Segment Location of BMP : SegBMP less ut Zoro Location is distributed orundelermined Fi i i ABMP7Aimp ‘Aratio 0.16 —_[unilless Volume Balance-> Solve Problem to satisfy Annual Recharge ft BMP Check-—> OK — dEXC Check—> OK Post-D Deficit Recharge (or desired recharge Vet lout rene BMP esterase 30,461 Joutt volume) BMP Location--> Location is selected as distributed or undetermined Post-D Impervious Area Avg BMP Recharge Represents | target Impervious Area)| “i""P sat Etticienc OC Ca % Infatraticn | (or target Impervi icteney Recharged J , cRainfall Root Zone Water Capacity | _ RWC ae" became Runoff Es Pcosign is accurate only after BMP dimensiens are updsted to make rech vlume® defi vlume. The petion RWG Modified to eRunoff Iconsider dEXC DRWC [eos |" Infitrated BI I, ot xP inftation rior to fling andthe area occupied by BMP are ignored in hase leulsons. Results are PoRunoff etimatic Eector Cfector | 467 frounts IRecharged ee sensetive to eeMr, make sure EMP selected is small enough fo UP to empty i less than 3 days. Forland Rainfall Average: Annual F Fevg iS Recharged Tees Segment Location of BYP if you seteet“impenvous areas” RWC vile minimal bu nt zero as determined by Recharge Requirement i ren i 1 root zone tne scil type and a shal ion of lateral fow and other esses. is Land Cover allowing corsice! "\Vder" and “Aimp" How to solve for different recharge volumes: By default the spreadsheet assigns the values of total deficit recharge volume "Vdef" and total proposed impervious area “Aimp” from the "Annual Recharge” Sheet to this page. This allows solution for a single BMP

he spreadsheet assigns the values of total deficit recharge volume "Vdef" and total 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. To solve for a smaller BMP or a LID-IMP 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 |ABMP or dBMP. To go back to the default configuration clik the "Default Vdef & Aimp" button.

[Project Name West Essex High! Description lands ‘harge BMP Input Param i me Water capacity Cal charge Desig Parameter Symbol Valu Unit Parameter Symbol Parameter Symbol Value _ Unit Empty Portion BMP Area ABMP sa.ft lof RWC under Post | ERWC 0.39 |in ent Qdesign | 0.60 fin Natural Recharge EMP Effective Depth, ERWC Modified to 5 finches of Rainfall this is the design variable | 75MP hi consider dEXC EDRWC on" to capture Paesion [acgaoa| Upper level of the BMP Empty Portion surface (negative if above | dBMPu in lof RWC under innit | RERWC | 0.00 —|in oe 26.5 ground) BRE Wg. over Imp. Area BE Depth of lower surface oF F Runoff Captured EMP, mustbe>=dBMPu_| XC in JAvg. over imp. Area me Post-development Land [Segment Location of BMP SegBMP unitiess Input Zere if Location is distriouted for undetermined IBMP Volume ABMP Check-—> OK "2.440 [cu ft i na a rs dEXC Check—> OK Post-D Deficit Recharge (or desired recharge Vaer loutt oe eee 110,323 |ourt volume) BMP Location—-> Location is selected as distributed or undetermined - Represents | ri 7] Post-D Impervious Area lAvg BMP Recharge i imp sat : 100.0% |2 infiltration (or target impervious Area) Efficiency Fae el | ; F FaRainfall Root Zonie Water Gapeicity RWG: eae its jbecame Runoff. ee i [Pdesign is accurate only after BMP dimensions are updated to make rech volume= deficit velume. The portion IRWC Modified to a Runoff consider dEXC ORWO: | iiecoomas” bil ot 14° inition prior to fing andthe area occupied by BMP are ignored in these calculations. Results are cimmatie: rector Cefactor, 1.67 [mounts IRechanged 58% ly, sensetive to UBMP, make sure dEMP selected is small enough for BMP to empty in less than 3 days. Ferland 5 Rainfall Average Annis P Fava 0 Recharged iy Segment Location of BM yeu seteet“impervious areas" RWC vl 9 minimal bul not zero as determined by Recharge Requirement z ree ln lover Imp. Area 2 i the soil type and a shallow root zone for this Land Cover allowing consideration of lateral flow and other How to solve for different recharge volumes: By default the spreadsheet assigns the values of total deficit recharge volume “VdeF" and total proposed impervious area "Aimp" from the "Annual Recharge" sheet to "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

Annual Recharge" sheet to "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. , {To solve for a smaller BMP or a LID-IMP 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 JABMP or dBMP. To go back to the default configuration clik the "Default Vdef & Aimp* button.

{Project Name Description Analysis Date BMP or LID Type ighlands 05/31/24 ¢ ut Param t Zone Water capacity Calculated neters [Recharge Design Parameter Symbol Val Parameter Symbol Value Unit Parameter Unit Empty Portion BMP Area ‘ABMP sq.ft lof RWC under Post) | ERWC | 0.39 in jneieg'ot Rumer Qdesion | 0.41 Jin to capture Natural Recharge. |BMP Effective Depth, IERWC Modified to inches of Raint this is the design variable | TMP in consider dEXC EDRWG' Oo to capture Pdesian [sues Upper level of the BMP Empty Portion surface (negative if above | dBMPu in Jof RWC under In RERwc | 0.00 posi ovens 21.8 jin ground) BMP. va. over Imp. Area ae Depth of lower surface of Runoff Captured EMP, must be>=daMPu_| XC in JAvg. over imp. Area ae" |Post-development Land Segment Location of BMP SegBMP lunitiess Input Zero if Location is distibuted Jor undetermined /BMECalculs S_ |ABMP/Aimp satisfy Annual Recharge IBMP Volume dBMP Check—> OK ina R prmane dEXC Check-—> OK Post-D Deficit Recharge (or desired recharge Vet cut pease BMP Rechare volume) folume BMP Location—> Location is selected as distributed or undetermined Post-D Impervious Area Aimp cil Avg BMP Recharge 100.0% eee la | (or target Impervious Area) Efficiency Rechaigea Root Zone Water Capacity | RWC 237 |in eRaintel, 78.5% : became Runoft UE len Pcosign is acourate only ater BMP dimensions are update to make rech volume= deft velume. The potion RWC Modified to , PaRunoff z consider dEXC lens eory|" infiltrated Cal Jot BMAP inttration prior to fing and the area occupied by BMP ara ignored in these cafcultions. Resuits are poRunoff ellmaticcrecine Grfactor 167 |rounits IRecharged Sel sensetive to dBMP, make sure dEMP selected is small enough fer BMAP to empty in less than 3 dys, For land JAverage Annual P Pav 49.0 |in eeRalital 3.4% os ‘a é Recharged al [Segment Location of BMP if you select “impervious areas" RWC will be minimal but not zero as determined by Recharge Requirement a By, lover Imp. Area . the soi ype and a shallow rot zone for this Land Cover allowing consideration of lateral fow and other losses. How to solve for different recharge volumes: By default the spreadsheet assigns the values of total deficit recharge volume “Vdet" and tolal proposed impervious area "Aimp” from the "Annual Recharge” sheet to "VdeF' and "Aimp" on this page. This allows solution for a single BMP to handle the

f total deficit recharge volume “Vdet" and tolal proposed impervious area "Aimp” from the "Annual Recharge” sheet to "VdeF' 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. [To solve for a smaller BMP or a LID-IMP 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 |ABMP or dBMP, To go back to the default configuration clik the "Default Vder & Aimp" button.

[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

[Project Name Description Analysis Date BMP or LID Type BMP, must be>=dBMPu_ Jor undetermined Post-development Land Segment Location of BMP Input Zero i Location is distnbuted Post-D Deficit Recharge West Essex Highlands West Orange, Essex County 05/31/24 ae Ht : = = aes 2 zi z Parameter Symbol Value Unit Parameter Symbol Value Parameter Symbol Value Unit l a Empty Portion BMP Area ABMP. Isqtt lof RWC under Post-D | ERWC 039 in paces of Runoft Qsesign | 1.44 fin Natural Recharge ois said IMP Effective Depth, ERWC Modified to inches of Rainfe ; this is the design variable _| COMP consider dEXC EORWC: [acum ” to capture Peeotan | igmencoea| Upper level of the BMP Ree ay Empty Portion Racharoe:Provided’ surface (negative if above | deMPu lof RWC under infil RERWC 0.00 Jin Picea ity 35.4 [in ai) can vg. over Imp. Area hee Depth offower surface of | anxg, Runoff Captured JAvg. over imp. Area. Volume: ee Solve Problem to ‘satisfy Annual Recharge BMP Check-—> OK GEXC Check-—> OK (or desired recharge Vet IL BMP Recherge: 137,867 |cutt volume) BMP Location Location is selected as distributed or undetermined Represents PostD impervious Area | ginny ca Javg BMP Recharge Seng (Pe (or target Impervic Efficiency Recharged P@Rainfall ReetZone Weter Gepaciy | RWS el lbecame Runoff Bee |« Peesignis accurcte ony ster EMP dimensions are updated to make rech vlume= deft volume, The pection IRWC Modified to soRunoff consider dEXC. DRWC ee” rated, SEAS oF EMP infitration prior to filing andthe area occupied by BMP sre ignored in these calculations. Results are YoRunoff Climatic Factor Cractor | 167 |nounits IRecharged Lol sensetve 1 dEMP, make sure COMP seteced is small enough for BMP to emptyin less than 3 days Ferland JAverage Annual P Pavg 49.0 |in paralntall 5.5% fs Recharged 2 % segment Location of BWP ifyou select "impervious areas” RWC vel be minimal but nal zero as determined by [Recharge Requirement ar 42.4 ii lover imp. Area ho sltype and a shal: rool zone fr this Land Cover aowinn consideration of tera Now and ether css0s "der" \To solve for a small How to solve for different recharge volumes: By default the spreadsheet assigns the values of total deficit recharge volume "VdeP' and total proposed impervious area "Aimp" from the "Annual Recharge” sheet fo i lows soluticn for a single BMP to handle the entire recharge requirement assuming the runoff from

recharge volume "VdeP' and total proposed impervious area "Aimp" from the "Annual Recharge” sheet fo i lows soluticn for a single BMP to handle the entire recharge requirement assuming the runoff from entire impervious area is available to the BMP. IMP or a LID-IMP to recharge only part of the recharge requirement, set Vdef to your target value and Aimp to impervious area directly connected to your infiltration fecility and then solve for |ABMP or dBMP. To go back to the default configuration clik the "Default Vdef & Aimp” button,