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Supporting Documentation · Nov 10, 2024

complete drainage report rev 9

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re % sensetive to dBMP, make sure dBMP selected is small enough for BMP to empty in less than 3 days. For land % Segment Location of BMP if you select "impervious areas" RWC will be minimal but not zero as determined by Recharge Requirement dr in 12.1 the soil type and a shallow root zone for this Land Cover allowing consideration of lateral flow and other losses. over Imp. Area 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 "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 Vdef & Aimp" button.

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Project Name West Essex Highlands Description West Orange, Essex County Recharge BMP Input Parameters Parameter BMP Area BMP Effective Depth, this is the design variable Upper level of the BMP surface (negative if above ground) Depth of lower surface of BMP, must be>=dBMPu Post-development Land Segment Location of BMP , Symbol Analysis Date 05/31/24 BMP or LID Type Pervious Pavement 11 Root Zone Water capacity Calculated Parameters Value Unit ABMP 13500.0 sq.ft dBMP 12.0 in dBMPu 27.8 in dEXC 29.0 in SegBMP 0 Parameter Empty Portion of RWC under Post-D Natural Recharge ERWC Modified to consider dEXC Empty Portion of RWC under Infilt. BMP Symbol Value Unit Recharge Design Parameters Parameter Symbol Value Unit Qdesign 3.05 in Pdesign 3.28 in ERWC 0.39 in Inches of Runoff to capture EDRWC 0.01 in Inches of Rainfall to capture RERWC 0.01 in Recharge Provided Avg. over Imp. Area 38.0 in Runoff Captured Avg. over imp. Area 38.1 in unitless Input Zero if Location is distributed or undetermined BMP Calculated Size Parameters ABMP/Aimp BMP Volume Aratio VBMP CALCULATION CHECK MESSAGES 0.23 unitless 13,500 cu.ft Parameters from Annual Recharge Worksheet System Performance Calculated Parameters Post-D Deficit Recharge (or desired recharge volume) Vdef Annual BMP Recharge Volume 189,645 cu.ft Post-D Impervious Area (or target Impervious Area) Aimp 59,900 sq.ft Avg BMP Recharge Efficiency 99.6% Root Zone Water Capacity RWC 2.37 in RWC Modified to consider dEXC DRWC 0.06 in Climatic Factor C-factor 1.67 no units Average Annual P Pavg 49.0 in 621,132 cu.ft %Rainfall became Runoff %Runoff Infiltrated %Runoff Recharged %Rainfall Recharged 78.5% 99.1% 9.6% 7.6% Volume Balance-> Solve Problem to satisfy Annual Recharge dBMP Check---> dBMP must be<=dEXC-dBMPu, adjust parameters dEXC Check---> OK BMP Location---> Location is selected as distributed or undetermined Represents % Infiltration OTHER NOTES Recharged % Pdesign is accurate only after BMP dimensions are updated to make rech volume= deficit volume. The portion % of BMP infiltration prior to filling and the area occupied by BMP are ignored in these calculations. Results are % sensetive to dBMP, make sure dBMP selected is small enough for BMP to empty in less than 3 days. For land % Segment Location of BMP if you select

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MP are ignored in these calculations. Results are % sensetive to dBMP, make sure dBMP selected is small enough for BMP to empty in less than 3 days. For land % Segment Location of BMP if you select "impervious areas" RWC will be minimal but not zero as determined by Recharge Requirement dr in 12.1 the soil type and a shallow root zone for this Land Cover allowing consideration of lateral flow and other losses. over Imp. Area 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 "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 Vdef & Aimp" button.

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Project Name West Essex Highlands Description West Orange, Essex County Recharge BMP Input Parameters Parameter BMP Area BMP Effective Depth, this is the design variable Upper level of the BMP surface (negative if above ground) Depth of lower surface of BMP, must be>=dBMPu Post-development Land Segment Location of BMP , Symbol Analysis Date 05/31/24 BMP or LID Type Pervious Pavement 12 Root Zone Water capacity Calculated Parameters Value Unit ABMP 2100.0 sq.ft dBMP 3.6 in dBMPu 27.0 in dEXC 48.0 in SegBMP 0 Parameter Empty Portion of RWC under Post-D Natural Recharge ERWC Modified to consider dEXC Empty Portion of RWC under Infilt. BMP Symbol Value Unit Recharge Design Parameters Parameter Symbol Value Unit Qdesign 3.05 in Pdesign 3.28 in ERWC 0.39 in Inches of Runoff to capture EDRWC 0.00 in Inches of Rainfall to capture RERWC 0.00 in Recharge Provided Avg. over Imp. Area 38.3 in Runoff Captured Avg. over imp. Area 38.3 in unitless Input Zero if Location is distributed or undetermined BMP Calculated Size Parameters ABMP/Aimp BMP Volume Aratio VBMP CALCULATION CHECK MESSAGES 0.81 unitless 630 cu.ft Parameters from Annual Recharge Worksheet System Performance Calculated Parameters Post-D Deficit Recharge (or desired recharge volume) Vdef Annual BMP Recharge Volume Post-D Impervious Area (or target Impervious Area) Aimp 2,600 sq.ft Root Zone Water Capacity RWC 2.37 in RWC Modified to consider dEXC DRWC 0.00 in Climatic Factor C-factor 1.67 no units Average Annual P Pavg 49.0 in 629,658 cu.ft Avg BMP Recharge Efficiency %Rainfall became Runoff %Runoff Infiltrated %Runoff Recharged %Rainfall Recharged Volume Balance-> Solve Problem to satisfy Annual Recharge dBMP Check---> OK dEXC Check---> OK 8,305 cu.ft 100.0% 78.5% 99.6% 0.4% 0.3% BMP Location---> Location is selected as distributed or undetermined Represents % Infiltration OTHER NOTES Recharged % Pdesign is accurate only after BMP dimensions are updated to make rech volume= deficit volume. The portion % of BMP infiltration prior to filling and the area occupied by BMP are ignored in these calculations. Results are % sensetive to dBMP, make sure dBMP selected is small enough for BMP to empty in less than 3 days. For land % Segment Location of BMP if you select "impervious areas" RWC will be minimal but not zero as

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ensetive to dBMP, make sure dBMP selected is small enough for BMP to empty in less than 3 days. For land % Segment Location of BMP if you select "impervious areas" RWC will be minimal but not zero as determined by Recharge Requirement dr in 12.3 the soil type and a shallow root zone for this Land Cover allowing consideration of lateral flow and other losses. over Imp. Area 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 "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 Vdef & Aimp" button.

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R Know what's below. Callbefore you dig. 11 2 1 - 14 4 NEW SOIL PERMEABILITY AND SEASONAL HIGH GROUNDWATER TESTING LOCATION FOWLE R DRIVE LAPIS CIRCLE HSG-D SOIL AREA = 421,633 SF 9.68 AC 10 9 8 15 SHEET AS SHOWN 18 40 Miller Drive Boonton, NJ 07005 TEl: 973.975.0703 CERTIFICATE OF AUTHORIZATION Fax: 973.975.0703 24GA28182400 www.pwanderson-cs.com 29 Scale DOG PARK Anderson Consulting Services LLC 27 PWA PWA Designed by 39 BCA C Checked by 5 35 ROSEMONT TERRACE C SLAYBACK TERRACE SIGNATURE INVALID WITHOUT RAISED SEAL OF P.E. N.J. PROFESSIONAL ENGINEER LIC. NO. 33410 PAUL W. ANDERSON 26 Drawn by P.S. IVE 30 HOWELL DRIVE Date Proj. No. 13 38 DR BU ILD IN G 32 PRELIMINARY AND FINAL SITE PLAN 19 FAIR MAY 28 RACE 12 P.S. Y TER 21 G D.2 22 BAKEL 3 33 BUILD IN BUILDING BAYOWSKI ROAD 6 OAD 16 .1 24 GD DIN BUILDING WARNE R R IL BU B BUILDING 7 NE B 17 LA G 20 FT IN LU SS CE NCY AC D IL KUZIK DRIVE 31 GE EMER BU HOLTON LANE HOWELL DRIVE 25 23 34 36 37 CLUBHOUSE BUILDING A.2 A.1 OA OF 66

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Project: WEH County: Essex County Municipality: West Orange Design Storm: 25 yr storm PIPE SECTION Computed By: ASM Checked By: PWA Date: 6/26/2024 Revised: SUBCATCH INCREMENTAL CUMULATIVE MENT AREA FROM TO Area (Acres) "C" A x C Ac A x C (acres) K-14.1 K-14 K-13 K-MH.12 K-MH.11 K-10 K-9 K-MH.8 K-7.1 K-7 K-6 K-MH.5 A-5 A-6 A-7 K-4 K-3 K-2 K-1 K-17 K-18 A-2 A-4 A-1 A-1.1 A-MH.1 C-5 C-6 C-7 C-8 K-14 K-13 K-MH.12 K-MH.11 K-9 K-9 K-MH.8 K-6 K-7 K-6 K-MH.5 K-3 A-6 A-7 K-4 K-3 BRR-1 K-1 BRR-2.1 K-18 EX. INLET A-1 A-1 A-1.1 A-MH.1 BRR-2.2 C-6 C-7 C-8 BPP-6 0.15 0.05 0.21 0.00 0.00 0.06 0.34 0.00 0.48 0.07 0.20 0.00 0.32 0.03 0.03 0.14 0.04 0.06 0.06 0.12 0.12 0.07 0.42 0.16 0.35 0.00 0.16 0.50 0.16 0.12 0.91 0.89 0.63 0.00 0.00 0.95 0.65 0.00 0.45 0.95 0.75 0.00 0.46 0.79 0.85 0.80 0.84 0.95 0.95 0.95 0.84 0.95 0.79 0.95 0.40 0.00 0.40 0.40 0.40 0.40 0.14 0.04 0.13 0.00 0.00 0.06 0.22 0.00 0.22 0.07 0.15 0.00 0.15 0.02 0.03 0.11 0.03 0.06 0.06 0.11 0.10 0.07 0.33 0.15 0.14 0.00 0.06 0.20 0.06 0.05 0.14 0.18 0.31 0.31 0.31 0.06 0.59 0.59 0.22 0.29 1.03 1.03 0.15 0.17 0.20 0.31 1.37 0.06 0.12 0.11 0.21 0.07 0.33 0.55 0.69 0.69 0.06 0.26 0.32 0.37 NOTES: 1) Design method used is Rational Method 2) Refer to Weighted Runoff Coefficient table for calculation of incremental areas and C values TIME OF CONCENTRATION I PEAK RUNOFF PIPING INPUT Tc to Tc in Q cum. Final Tc Q to Inlet Dia. Length Inlet Pipe (In/Hr) for Pipe (min) (CFS) (In) (Ft) (min)

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ation of incremental areas and C values TIME OF CONCENTRATION I PEAK RUNOFF PIPING INPUT Tc to Tc in Q cum. Final Tc Q to Inlet Dia. Length Inlet Pipe (In/Hr) for Pipe (min) (CFS) (In) (Ft) (min) (min.) (CFS) 10.00 0.04 10.00 6.80 0.95 0.95 15 31.0 10.00 0.05 10.04 6.80 0.27 1.22 15 22.0 10.00 0.28 10.09 6.80 0.88 2.11 15 116.0 10.00 0.50 10.37 6.80 0.00 2.11 15 206.0 10.00 0.28 10.87 6.68 0.00 2.07 15 136.0 10.00 0.05 10.00 6.80 0.41 0.41 15 22.0 10.00 0.11 11.15 6.56 1.44 3.87 15 113.0 10.00 0.13 11.26 6.56 0.00 3.87 15 158.0 10.00 0.02 10.00 6.80 1.50 1.50 15 30.0 10.00 0.05 10.02 6.80 0.48 1.97 15 22.0 10.00 0.13 11.39 6.56 0.98 6.76 15 140.0 10.00 0.23 11.52 6.44 0.00 6.63 15 163.0 10.00 0.05 10.00 6.80 1.02 1.02 15 46.0 10.00 0.06 10.05 6.80 0.14 1.16 15 24.0 10.00 0.16 10.11 6.80 0.20 1.36 15 114.0 10.00 0.05 10.27 6.80 0.75 2.11 15 22.0 10.00 0.09 11.75 6.44 0.19 8.82 24 106.0 10.00 0.08 10.00 6.80 0.41 0.41 15 22.0 10.00 0.12 10.08 6.80 0.41 0.82 15 41.0 10.00 0.11 10.00 6.80 0.75 0.75 15 40.0 10.00 0.23 10.11 6.80 0.68 1.43 15 133.0 10.00 0.22 10.00 6.80 0.48 0.48 15 187.0 10.00 0.19 10.00 6.80 2.24 2.24 15 89.0 10.00 0.11 10.22 6.80 1.02 3.74 15 46.0 10.00 0.05 10.33 6.80 0.95 4.69 15 36.0 10.00 0.11 10.38 6.80 0.00 4.69 15 133.0 10.00 0.09 10.00 6.80 0.41 0.41 15 83.0 10.00 0.76 10.09 6.80 1.36 1.77 15 221.0 10.00 0.30 10.85 6.68 0.40 2.14 15 91.0 10.00 0.68 11.15 6.56 0.33 2.43 15 159.0 Man. "n" 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 PIPING DATA Pipe Full Pipe Actual Pipe Capacity

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0 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 PIPING DATA Pipe Full Pipe Actual Pipe Capacity Velocity Velocity (cfs) (fps) (fps) 0.0289 14.27 11.63 3.72 0.0100 8.39 6.84 3.55 0.0100 8.39 6.84 4.81 0.0100 8.39 6.84 4.81 0.0143 10.04 8.19 5.19 0.0100 8.39 6.84 1.76 0.0653 21.45 17.49 10.12 0.0872 24.79 20.21 10.90 0.0903 25.23 20.57 5.96 0.0100 8.39 6.84 4.58 0.0675 21.81 17.78 14.08 0.0295 14.42 11.76 11.36 0.0486 18.51 15.09 4.38 0.0102 8.48 6.91 3.43 0.0305 14.66 11.95 4.49 0.0100 8.39 6.84 4.81 0.0446 62.09 19.77 9.81 0.0045 5.63 4.59 1.47 0.0067 6.87 5.60 2.53 0.0074 7.22 5.89 2.37 0.0200 11.87 9.68 4.36 0.0439 17.59 14.34 2.64 0.0137 9.83 8.01 5.36 0.0101 8.44 6.88 6.51 0.0307 14.71 11.99 9.66 0.0926 25.54 20.82 12.06 0.0480 18.39 14.99 2.12 0.0050 5.94 4.84 3.77 0.0055 6.23 5.08 4.22 0.0032 4.75 3.87 3.91 Slope (ft/ft)

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PIPE SECTION SUBCATCH INCREMENTAL CUMULATIVE MENT AREA FROM TO Area (Acres) "C" A x C Ac A x C (acres) C-4 C-3 C-2 C-1 K-15 K-16 K-MH.17 W-7 OCS-8 W-6 W-5.1 W-5 W-4.1 W-4 W-3.1 W-3 W-2 W-1 CS W-8 W-9 W-MH.2 D-18 D-17 D-17/18 D-1 D-2 D-MH.1 D-3 D-4 D-5 D-6 D-7 D-8 D-12 D-11 D-9 D-10 D-MH.7 C-2 C-2 C-1 K-15 K-16 K-MH.17 W-6 OCS-8 W-6 W-5 W-5 W-4 W-4 W-3 W-3 W-2 W-1 CS BRR-7 W-MH.2 W-MH.2 W-CULVERT D-17/18 D-17/18 BRR-9 D-2 D-MH.1 BRR-10 D-4 D-5 D-6 BRR-10.1 D-8 BRR-10.2 D-11 D-10 D-10 D-MH.7 BPP-11 0.08 0.15 0.10 0.17 0.51 0.02 0.00 0.21 0.00 0.15 0.26 0.40 0.05 0.04 0.06 0.06 0.07 0.07 0.00 0.05 0.10 0.00 0.30 0.34 0.00 0.38 0.08 0.00 0.16 0.02 0.22 0.11 0.18 0.08 0.03 0.08 0.15 0.16 0.00 0.68 0.79 0.78 0.80 0.75 0.83 0.00 0.46 0.00 0.53 0.85 0.47 0.93 0.95 0.95 0.85 0.77 0.77 0.00 0.78 0.66 0.00 0.84 0.70 0.00 0.64 0.73 0.00 0.47 0.84 0.84 0.95 0.68 0.95 0.40 0.40 0.40 0.40 0.00 0.05 0.12 0.08 0.14 0.38 0.02 0.00 0.10 0.00 0.08 0.22 0.19 0.05 0.04 0.06 0.05 0.05 0.05 0.00 0.04 0.07 0.00 0.25 0.24 0.00 0.24 0.06 0.00 0.08 0.02 0.18 0.10 0.12 0.08 0.01 0.03 0.06 0.06 0.00 0.05 0.12 0.25 0.39 0.77 0.79 0.79 0.10 0.10 0.97 0.22 1.38 0.05 1.47 0.06 1.58 1.63 1.68 1.68 0.04 0.07 0.11 0.25 0.24 0.49 0.24 0.30 0.30 0.08 0.10 0.28 0.38 0.12 0.20 0.01 0.04 0.06 0.16 0.16 TIME OF CONCENTRATION I PEAK RUNOFF PIPING INPUT Tc to Tc in Q cum. Final Tc Q to Inlet Dia. Length Inlet Pipe (In/Hr) for Pipe (min) (CFS) (In) (Ft) (min)

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