250701_42 ERW_Stormwater Report

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: Waymaker Climatic Factor Description: Proposed Site Improvements 1.67 Analysis Date: Pre-Developed Conditions 07/01/25 Post-Developed Conditions Land Segment Area (acres) TR-55 Land Cover Soil Annual Recharge (in) 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 and proceed downward. Don't leave blank rows (with A=0) in between your segment entries. Rows with A=0 will not be 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= Recharge Efficiency Parameters Calculations (area averages) displayed or used in calculations. For impervious areas outside of

nnual Recharge to Preserve = Post-Development Annual Recharge Deficit= 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)