251203_42 ERW_Stormwater Report

NJ DEP 2-hr WQ Rainfall=1.25" 251202_42 ERW Waystone - Future Rainfall Prepared by Colliers Engineering & Design HydroCAD® 10.20-5c s/n 04431 © 2023 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond BASIN: Elevation (feet) 15.00 15.05 15.10 15.15 15.20 15.25 15.30 15.35 15.40 15.45 15.50 15.55 15.60 15.65 15.70 15.75 15.80 15.85 15.90 15.95 16.00 16.05 16.10 16.15 16.20 16.25 16.30 16.35 16.40 16.45 16.50 16.55 16.60 16.65 16.70 16.75 16.80 16.85 16.90 16.95 17.00 17.05 17.10 17.15 17.20 17.25 17.30 17.35 17.40 17.45 17.50 17.55 Surface (acres) 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 Storage (acre-feet) 0.000 0.003 0.007 0.010 0.013 0.017 0.020 0.023 0.027 0.030 0.034 0.037 0.040 0.044 0.047 0.050 0.058 0.065 0.072 0.079 0.086 0.094 0.101 0.108 0.115 0.122 0.129 0.136 0.143 0.151 0.158 0.165 0.172 0.179 0.186 0.193 0.199 0.206 0.213 0.220 0.227 0.234 0.241 0.247 0.254 0.261 0.267 0.274 0.281 0.287 0.294 0.300 Elevation (feet) 17.60 17.65 17.70 17.75 17.80 17.85 17.90 17.95 18.00 18.05 18.10 18.15 18.20 18.25 18.30 18.35 18.40 18.45 18.50 18.55 18.60 18.65 18.70 18.75 18.80 18.85 18.90 18.95 19.00 19.05 19.10 19.15 19.20 19.25 19.30 19.35 19.40 19.45 19.50 19.55 19.60 19.65 19.70 19.75 19.80 19.85 19.90 19.95 20.00 Surface (acres) 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 0.168 Storage (acre-feet) 0.307 0.313 0.320 0.326 0.332 0.339 0.345 0.351 0.357 0.363 0.369 0.375 0.381 0.387 0.393 0.399 0.405 0.410 0.416 0.421 0.427 0.432 0.438 0.443 0.448 0.453 0.458 0.463 0.467 0.472 0.476 0.480 0.484 0.488 0.492 0.495 0.499 0.502 0.506 0.509 0.513 0.516 0.519 0.523 0.526 0.529 0.533 0.536 0.539 Printed 12/3/2025 Page 108

Appendix B Recharge Worksheet Stormwater Management Report | October 18, 2024 – Last Revised December 3, 2025

Annual Groundwater Recharge Analysis (based on GSR-32) New Jersey Groundwater Recharge Spreadsheet Select Township ↓ Version 2.0 November 2003 ESSEX CO., WEST ORANGE TOWN Average Annual P (in) 49.0 Project Name: 42 ERW Climatic Factor Description: Proposed Site Improvements 1.67 Analysis Date: Pre-Developed Conditions 09/25/25 Post-Developed Conditions Annual Recharge (in) Land Segment Area (acres) TR-55 Land Cover Soil 1 0.319 Impervious areas Boonton 0.0 2 2.773 Open space Boonton 14.9 Annual Recharge (cu.ft) Annual Recharge (in) Annual Recharge (cu.ft) Land Segment Area (acres) TR-55 Land Cover - 1 0.847 Impervious areas Boonton 0.0 - 150,467 2 2.245 Open space Boonton 14.9 121,817 Soil 3 Gravel, dirt Boonton - - 3 Gravel, dirt Boonton - 4 Gravel, dirt Freehold - - 4 Open space Woodstown - - 5 Row Crop Woodstown - - 5 0 brush Adelphia - - 6 Impervious areas Woodstown - - 6 0 Brush Adelphia - - 7 Open space Woodstown - - 7 0 Brush Adelphia - - - 8 0 brush Adelphia - - 8 0 Brush Adelphia Variant - - 9 0 brush Adelphia - - 9 0 Brush Adelphia - - 10 0 brush Adelphia - - 10 0 Brush Abbottstown - - 11 0 Brush Abbottstown - - 11 0 Brush Abbottstown - - 12 0 Brush Abbottstown - - 12 0 Brush Abbottstown - - 13 0 Brush Abbottstown - - 13 0 Brush Abbottstown - - 14 0 Brush Abbottstown - - 14 0 Brush Abbottstown - - 15 0 Brush Abbottstown 0 Brush Abbottstown 3.1 Total Annual Recharge (cu-ft) 15 Total = Total Annual Recharge (in) Total = 3.1 Total Annual Recharge (in) Total Annual Recharge (cu.ft) 13.4 Procedure to fill the Pre-Development and Post-Development Conditions Tables For each land segment, first enter the area, then select TR-55 Land Cover, then select Soil. Start from the top of the table 150,467 Annual Recharge Requirements Calculation ↓ 10.9 121,817 100% Total Impervious Area (sq.ft) 36,895 28,650 (cubic feet) % of Pre-Developed Annual Recharge to Preserve = Post-Development Annual Recharge Deficit= and proceed downward. Don't leave blank rows (with A=0) in between your segment entries. Rows with A=0 will not be Recharge Efficiency Parameters Calculations (area averages) displayed or used in calculations. For impervious areas outside of

s (with A=0) in between your segment entries. Rows with A=0 will not be Recharge Efficiency Parameters Calculations (area averages) displayed or used in calculations. For impervious areas outside of standard lots select "Impervious Areas" as the Land Cover. RWC= 3.59 (in) DRWC= 0.00 (in) Soil type for impervious areas are only required if an infiltration facility will be built within these areas. ERWC = 0.59 (in) EDRWC= 0.00 (in)

Project Name 42 ERW Description Proposed Site Improvements Recharge BMP Input Parameters Parameter BMP Area Symbol Unit 5646.0 sq.ft dBMP 3.6 in dBMPu 76.8 in dEXC 85.8 in Post-development Land Segment Location of BMP , SegBMP 0 unitless Depth of lower surface of BMP, must be>=dBMPu Input Zero if Location is distributed or undetermined BMP or LID Type Subsurface Infiltration Basin Root Zone Water capacity Calculated Parameters Value ABMP BMP Effective Depth, this is the design variable Upper level of the BMP surface (negative if above ground) Analysis Date 09/25/25 Parameter Empty Portion of RWC under Post-D Natural Recharge ERWC Modified to consider dEXC Empty Portion of RWC under Infilt. BMP Symbol Value ERWC 0.59 EDRWC RERWC Unit Parameter Symbol Value Unit in Inches of Runoff to capture Qdesign 0.55 in 0.00 in Inches of Rainfall to capture Pdesign 0.69 in 0.00 in Recharge Provided Avg. over Imp. Area 25.7 in Runoff Captured Avg. over imp. Area 25.7 in BMP Calculated Size Parameters ABMP/Aimp BMP Volume Aratio VBMP CALCULATION CHECK MESSAGES 0.15 unitless 1,694 cu.ft Parameters from Annual Recharge Worksheet System Performance Calculated Parameters Post-D Deficit Recharge (or desired recharge volume) Annual BMP Recharge Volume Vdef 28,650 cu.ft Post-D Impervious Area (or target Impervious Area) Aimp 36,895 sq.ft Root Zone Water Capacity RWC 3.59 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 Avg BMP Recharge Efficiency %Rainfall became Runoff %Runoff Infiltrated %Runoff Recharged %Rainfall Recharged Recharge Design Parameters Volume Balance-> Solve Problem to satisfy Annual Recharge dBMP Check---> OK dEXC Check---> OK 78,977 cu.ft BMP Location---> Location is selected as distributed or undetermined 100.0% 78.5% 66.8% 66.8% 52.4% Represents % Infiltration Recharged OTHER NOTES % 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

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 9.3 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.

Appendix C Existing and Proposed Drainage Area Map Stormwater Management Report | October 18, 2024 – Last Revised December 3, 2025

TH R NO E S Engineering & Design, Architecture, Architecture, Surveying, Landscape CT P.C. Engineering & Design N W www.colliersengineering.com Copyright © 2025. Colliers Engineering & Design All Rights Reserved. This drawing and all the information contained herein is authorized for use only by the party for whom the services were contracted or to whom it is certified. This drawing may not be copied, reused, disclosed, distributed or relied upon for any other purpose without the express written consent of Colliers Engineering & Design. Doing Business as C O N S U L T I N G ENGINEERS + SURVEYING EDA (perv.) EDA-1 A = 102,351 SF. CN = 74 TC = 13.1 MIN. PROTECT YOURSELF ALL STATES REQUIRE NOTIFICATION OF EXCAVATORS, DESIGNERS, OR ANY PERSON PREPARING TO DISTURB THE EARTH'S SURFACE ANYWHERE IN ANY STATE R DESIGN POINT 2 ___________________________ FOR STATE SPECIFIC DIRECT PHONE NUMBERS VISIT: WWW.CALL811.COM SCF CITY OF PITTSBURGH DEPARTMENT OF CITY PLANNING APPROVED: CITY _______________________ PLANNING COMMISSION _______________________ CHAIRMAN ATTEST: _______________________ _______________________ SECRETARY L = 21 ' S =10.5 % DESIGN POINT 1 SF L = 100 ' S =4.1 % SCF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12/03/25 1 . DATE REV SCF L = 185 ' S =8.3 % MN DRAWN BY DESCRIPTION PER LAYOUT CHANGES L = 401 ' S =3.5 % EDA (perv.) SF L = 12 ' S =0.8 % SF EDA-2 ,430 SF. 18 = A CN = 74 TC = 13.1 MIN. L = 100 ' S =1.4 % Jesse Cokeley NEW JERSEY LICENSED PROFESSIONAL ENGINEER LICENSE NUMBER: GE54006 COLLIERS ENGINEERING & DESIGN, INC. N.J. C.O.A. #: 24GA27986500 E SF L = 78 ' S =1.5 % EAG LE R IDG (50') WAY E EDA (imp.) By: MICHAELA.NICODEMO EDA-1 A = 13,913 SF. CN = 98 TC = 2.8 MIN. E T T A A T T S S R Y E 0 E T 8 S N 2 R I E JE Y T A U WW O EH R NG I H PRELIMINARY & FINAL MAJOR SITE PLAN FOR SYMBOL DESCRIPTION DRAINAGE AREA BOUNDARY TIME OF CONCENTRATION (Tc) PATH BLOCK 106 LOT 24.01 Tc PATH TYPE IDENTIFIER: SF = SHEET FLOW SCF = SHALLOW CONCENTRATED FLOW CF= CHANNEL/CONDUIT FLOW SF L = 10 ' S = 5.0 % LENGTH OF TC PATH TOWNSHIP OF WEST ORANGE ESSEX COUNTY NEW JERSEY SLOPE OF Tc PATH DRAINAGE AREA LABEL EDA WOODCLIFF LAKE A = 0.100 AC. CN = 76 TC = 4.8 MIN. DRAINAGE AREA RehA (HSG C) 300 Tice Boulevard Suite 101 Woodcliff Lake, NJ

GE ESSEX COUNTY NEW JERSEY SLOPE OF Tc PATH DRAINAGE AREA LABEL EDA WOODCLIFF LAKE A = 0.100 AC. CN = 76 TC = 4.8 MIN. DRAINAGE AREA RehA (HSG C) 300 Tice Boulevard Suite 101 Woodcliff Lake, NJ 07677 Architecture, & Engineering Design, Landscape Architecture, Surveying, CT P.C. Engineering Phone: 845.352.0411 & Design CURVE NUMBER COLLIERS ENGINEERING & DESIGN, INC. DOING BUSINESS AS MASER CONSULTING TIME OF CONCENTRATION 2024\24006174A\C-DRNG-42.dwg\C-X.XX-EXIST. DRAINAGE MAP WAYSTONE REALTY LLC PROPOSED RESIDENTIAL IMPROVEMENTS LEGEND SOIL TYPE (HYDROLOGIC SOIL GROUP) SCALE: DATE: AS SHOWN DRAWN BY: 9/16/2024 CHECKED BY: MMN JF REVIEWED BY: PTH PROJECT NUMBER: SOIL TYPE BOUNDARY 24006174A DRAWING NAME: C-DRNG-42 SHEET TITLE: 30 0 30 SCALE : 1" = 30' SELECT LINEAR UNIT OF MEASURE 60 EXISTING DRAINAGE MAP SHEET NUMBER: 1 OF 3 UNAUTHORIZED ONLY MAPS WITHALTERATION THE LAND SURVEYOR OR ADDITION OR PROFESSIONAL TO A SURVEY OR ENGINEER'S ENGINEERING SEALMAP AREBEARING GENUINEATRUE LICENSED AND CORRECT LAND SURVEYOR COPIES OR OF THE PROFESSIONAL LAND SURVEYOR ENGINEER OR PROFESSIONAL IS A VIOLATIONENGINEER’S OF SECTION ORIGINAL 7209, SUB-DIVISION WORK AND 2, OPINION. OF THE NEW YORK STATE EDUCATION LAW. NOTE: DO NOT SCALE DRAWINGS FOR CONSTRUCTION.

TH R NO E S Engineering & Design, Architecture, Architecture, Surveying, Landscape CT P.C. Engineering & Design N W www.colliersengineering.com Copyright © 2025. Colliers Engineering & Design All Rights Reserved. This drawing and all the information contained herein is authorized for use only by the party for whom the services were contracted or to whom it is certified. This drawing may not be copied, reused, disclosed, distributed or relied upon for any other purpose without the express written consent of Colliers Engineering & Design. Doing Business as C O N S U L T I N G ENGINEERS + SURVEYING PROTECT YOURSELF ALL STATES REQUIRE NOTIFICATION OF EXCAVATORS, DESIGNERS, OR ANY PERSON PREPARING TO DISTURB THE EARTH'S SURFACE ANYWHERE IN ANY STATE R DESIGN POINT 2 ___________________________ PDA (perv.) PR 1A-P A = 13,167 SF CN = 78 TC = 5.9 MIN. CITY OF PITTSBURGH DEPARTMENT OF CITY PLANNING APPROVED: CITY _______________________ PLANNING COMMISSION _______________________ CHAIRMAN ATTEST: X X X 622 X X X X X X X X X X X X X X 621 D X X X X X X X X X X X X X X X X X X 624 X X X X X 9 61 X X D X 620 X X X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PER LAYOUT CHANGES X X X 62 6 X X X X 625 X X X X X 6 62 626 5 T T 627 BLNZ COR 7 BARN FFE: 62 7.00 625 625 62 7 625 6 62 6 62 625 625 L = 100 ' S =2.0 % SCF L = 36 ' S =0.97 % EAG LE R IDG (50') WAY E PDA (perv.) PR 1B-P A = 77,195 SF CN = 79 TC = 7.7 MIN. PDA (imp.) PR 1B-I A = 36,906 SF CN = 98 TC = 1.5 MIN. Jesse Cokeley NEW JERSEY LICENSED PROFESSIONAL ENGINEER LICENSE NUMBER: GE54006 COLLIERS ENGINEERING & DESIGN, INC. N.J. C.O.A. #: 24GA27986500 E SF 626 624 62 4 X 62 HOUSE GARAG FFE: 628.00 E FFE: 626.50 By: MICHAELA.NICODEMO . X 23 62 2024\24006174A\C-DRNG-42.dwg\C-X.XX-PROP. DRAINAGE MAP 12/03/25 X 6 1 X X X 622 FFE: 62 5.50 DATE X ARENA 5 62 624 . X X X X 623 SF L = 100 ' S =7.25 % DRAWN BY 62 L = 100 ' S =4.0 % SF 625 4 2 62 L = 84 ' S =8.33 % MN D X SF X X X X X X X X BC 619.5 625 X X X X X X X X 1 SCF 2 L =6 95 ' S =3.61 % X X X X DESCRIPTION X X X X X 5 62 . X X X X X X X D L = 103 ' S =10.90