JMA02P003 262 270 Main Street Development Stormwater Management Report

Komline AquaShield AQUA-PONIC™ INSPECTION & MAINTENANCE LOG MAINTENANCE COMPANY INFORMATION | Company Name: Street Address: City: State/Prov.: Zip/Postal Code: Contact: Title: Office Phone: Cell Phone: ACTIVITY LOG Date of Cleaning: Time of Cleaning: Start: End: Date of Next Inspection: Floatable debris present: Yes No Action taken: Oil present: Yes No Action taken: Filter Media Needs Replacement: Yes No Structural damage: Yes No Where: Clogging: Yes No Describe: Additional Comments and/or Actions to be Taken Time Frame AQUA-PONIC W Page 5 of 6

Komline AquasShield Inspection & Maintenance Schedule Log First Year Post-Construction Date Installed/Activated. Month Activity 1 2 3 4 5 6 7 8 9 10 | 14 | 12 Inspect and Clean x x x x as needed Inspect Bypass. and maintain as Xx Xx X Xx needed Clean System* x Second and Subsequent Years Post-Construction Month Activity 1 2 3 4 5 6 7 8 9 10 | 14 |] 12 Inspect and Clean x as needed Inspect Bypass, maintain as x needed Clean System x AQUA-PONIC W. Page 6 of 6

Engineering Stormwater Narrative JMA02P003- May 26, 2026 262-270 Main St Development Appendix G: Groundwater Recharge 10

New Jersey Annual Groundwater Recharge Analysis (based on GSR-32) Project Name: JMA02P003.04 Groundwater Average Recharge Select Township ↓ Annual P Climatic Description: Stormwater Design Spreadsheet Version 2.0 (in) Factor November 2003 ESSEX CO., WEST ORANGE TOWN 49.0 1.67 Analysis Date: 04/22/26 Pre-Developed Conditions Post-Developed Conditions Annual Annual Annual Annual Land Area Land Area TR-55 Land Cover Soil Recharge Recharge TR-55 Land Cover Soil Recharge Recharge Segment (acres) Segment (acres) (in) (cu.ft) (in) (cu.ft) 1 0.69 Impervious areas Boonton 0.0 - 1 0.68

(in) (cu.ft) 1 0.69 Impervious areas Boonton 0.0 - 1 0.68 Impervious areas Boonton 0.0 - 2 0.01 Open space Boonton 14.9 543 2 0.02 Open space Boonton 14.9 1,085 3 0 Woods-grass combination Woodstown - - 3 0 Open space Keyport - - 4 0 Open space Keyport - - 4 0 Open space Woodstown - - 5 0 Gravel, dirt Keyport - - 5 0 brush Adelphia - - 6 0 Woods-grass combination Keyport - - 6 0 Brush Adelphia - - 7 0 brush Adrian - - 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

hia - - 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 Total Total Total Annual Annual Annual Annual Total = 0.7 Recharge Recharge Total = 0.7 Recharge Recharge (in) (cu-ft)

Recharge Recharge (in) (cu-ft) (in) (cu.ft) 0.2 543 Annual Recharge Requirements Calculation ↓ 0.4 1,085 Total Impervious Procedure to fill the Pre-Development and Post-Development Conditions Tables % of Pre-Developed Annual Recharge to Preserve = 100% Area (sq.ft) 29,621 Post-Development Annual Recharge Deficit= -543 (cubic feet) 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 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= 3.34 (in) DRWC= 3.34 (in) Soil type for impervious areas are only required if an infiltration facility will be built within these areas. ERWC = 0.55 (in) EDRWC= 0.55 (in)

Engineering Stormwater Narrative JMA02P003- May 26, 2026 262-270 Main St Development Appendix H: Groundwater Mounding 11

Basin A Input Values 0.50 R Recharge rate (permeability rate) (in/hr) Specific yield, Sy (dimensionless) 0.150 Sy default value is 0.15; max value is 0.2 provided that a lab test data is submitted Horizontal hydraulic conductivity (in/hr) 0.50 Kh Kh = 5xRecharge Rate (R) in the coastal plain; Kh=R outside the coastal plain 14.750 x 1/2 length of basin (x direction, in feet) 36.320 y 1/2 width of basin (y direction, in feet) 11.79 t Duration of infiltration period (hours) 10.00 hi(0) Initial thickness of saturated zone (feet) 13.192 h(max) Maximum thickness of saturated zone (beneath center of basin at end of infiltration period) 3.192 Δh(max) Maximum groundwater mounding (beneath center of basin at end of infiltration period) Distance from Ground-water center of basin in x Mounding, in feet direction, in feet 3.192 0 2.685 10 Re-Calculate Now 0.558 20 0.030 30 Groundwater Mounding, in feet 0.002 40 3.500 0.001 50 0.001 60 3.000 0.001 70 2.500 0.001 80 0.001 90 2.000 1.500 1.000 0.500 0.000 0 10 20 30 40 50 60 70 80 90 100 -0.500 Disclaimer This spreadsheet solving the Hantush (1967) equation for ground-water mounding beneath an infiltration basin is made available to the general public as a convenience for those wishing to replicate

mer This spreadsheet solving the Hantush (1967) equation for ground-water mounding beneath an infiltration basin is made available to the general public as a convenience for those wishing to replicate values documented in the USGS Scientific Investigations Report 2010-5102 "Groundwater mounding beneath hypothetical stormwater infiltration basins" or to calculate values based on user-specified site conditions. Any changes made to the spreadsheet (other than values identified as user-specified) after transmission from the USGS could have unintended, undesirable consequences. These consequences could include, but may not be limited to: erroneous output, numerical instabilities, and violations of underlying assumptions that are inherent in results presented in the accompanying USGS published report. The USGS assumes no responsibility for the consequences of any changes made to the spreadsheet. If changes are made to the spreadsheet, the user is responsible for documenting the changes and justifying the results and conclusions.