240916_40 ERW Stormwater Report FULL

Annual Groundwater Recharge Analysis (based on GSR-32) Project Name: Waymaker Select Township ↓ Average Annual P (in) Climatic Factor Description: Proposed Site Improvements ESSEX CO., WEST ORANGE TOWN 49.0 1.67 Analysis Date: 09/16/24 Land Segment Area (acres) TR-55 Land Cover Soil Annual Recharge (in) Annual Recharge (cu.ft) Land Segment Area (acres) TR-55 Land Cover Soil Annual Recharge (in) Annual Recharge (cu.ft) 1 0.22 Impervious areas Boonton 0.0 - 1 0.46 Impervious areas Boonton 0.0 - 2 1.76 Open space Boonton 14.9 95,500 2 1.48 Open space Boonton 14.9 80,307 3 0.09 Gravel, dirt Boonton 6.9 2,238 3 0.16 Gravel, dirt Boonton 6.9 3,979 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 - - 15 0 Brush Abbottstown - - Total = 2.1 Total Annual Recharge (in) Total Annual Recharge (cu-ft) Total = 2.1 Total Annual Recharge (in) Total Annual Recharge (cu.ft) 13.0 97,738 11.2 84,286 Procedure to fill the Pre-Development and Post-Development Conditions Tables % of Pre-Developed Annual Recharge to Preserve = 100% Total Impervious Area (sq.ft) 20,038 For each land segment, first enter the area, then select TR-55 Land Cover, then select Soil. Start from the top of the table Post-Development Annual Recharge Deficit= 13,453 (cubic feet) and proceed downward. Don't leave blank rows (with A=0) in between your segment entries. Rows with A=0 will not be displayed or used in calculations. For impervious areas outside of standard lots select "Impervious Areas" as the Land Cover. RWC= 3.58 (in) DRWC= 0.94 (in) Soil type for impervious areas are only required if an infiltration facility will be built within these areas. ERWC = 0.59 (in) EDRWC= 0.15 (in) Pre-Developed Conditions Post-Developed Conditions Warning: make total area equal to Pre-Developed Conditions Recharge Efficiency Parameters Calculations (area averages) Annual Recharge

RWC= 0.15 (in) Pre-Developed Conditions Post-Developed Conditions Warning: make total area equal to Pre-Developed Conditions Recharge Efficiency Parameters Calculations (area averages) Annual Recharge Requirements Calculation ↓ New Jersey Groundwater Recharge Spreadsheet Version 2.0 November 2003 This document was created by an application that isn’t licensed to use novaPDF. Purchase a license to generate PDF files without this notice.