Stormwater Management Report Feb 2026 resubmissionrcd 2 26 2026

Soil Profile Report Project Name/#: Mavis #2296 - Additional Infiltration Testing Municipality: West Orange Project Location: 460 Prospect Avenue Block/Lot: Block: 105 Lot: 64.01 Driller: Sano Drilling Inspector: Maddie Trudnak / ECS Date of Observation: 1/14/2025 Lowest point in BMP (ft) = - Prepared by: JCY Maximum Impounded Water Depth (ft) = - Required Soil Profile Depth (ft) = 9.0 Exploration ID: TP-05 Elevation (ft) Existing Ground Level: 616.0 Elevations are approximate and based on Google Earth©. Proposed SWM Basin Bottom Level: - Seasonal High Water Table: - Termination: 607.0 Mark Most Top Elevation/Bottom Observed Water Table Soil Morphological USDA Soil Texture Hydraulically Elevation Elevation Note Observations Restrictive (ft.) (ft.) Asphalt 616.0/615.2 10YR 6/2 light brownish Sandy Loam 615.2/615.0 Subgrade

615.2/615.0 Subgrade gray, moist, 90% gravel 10YR 5/1 gray, moist, Fill, contains brick, Sandy Loam 615.0/613.0 blocky & single grain, plastic, cobbles loose, 30% gravel 5YR 3/3 dark reddish brown, moist, blocky, Silty Clay Loam x 613.0/607.0 Not encountered Bucket refusal @ 9.0' bgs friable, 30% gravel and cobbles

Single Ring Infiltrometer Test Log ECS Project No.: 44:2100-A Project Location: 460 Prospect Avenue Project Name: Mavis #2296 Infiltration Testing - West Orange Township: West Orange Block/Lot: Testing per New Jersey Stormwater Best Management Practices Manual, Chapter 12, Subsection A5 (April 2022) TEST ID: TP-01A Soil Layer Classification: Sandy Loam Infiltration Test Elev.: 615.0 Date: 1/14/2025 Converted Water Level Field Recorded Calculated Time Per Field Observed Field Observed Averaged Hydraulic Water Trial Hydraulic MM SS .ss Drop Time 1-inch Water Level Drop Intake Rate Intake Rate Conductivity Rate Level Drop # Conductivity (in) (MM:SS.ss) (MM.mm) (inches/min) (inches/hr) (inches/hr) (inches/hr) 0.13 60 00 00 1 0.1 60:00.00 60.00 0.0021 0.13 0.04 0.13 60 00 00 2 0.1 60:00.00 60.00 0.0021 0.13 0.04

0.0021 0.13 0.04 0.04 0.13 60 00 00 3 0.1 60:00.00 60.00 0.0021 0.13 0.04 0.13 60 00 00 4 0.1 60:00.00 60.00 0.0021 0.13 0.04 TEST ID: TP-02A Soil Layer Classification: Sandy Loam Infiltration Test Elev.: 615.0 Date: 1/14/2025 Converted Water Level Field Recorded Calculated Time Per Field Observed Field Observed Averaged Hydraulic Water Trial Hydraulic MM SS .ss Drop Time 1-inch Water Level Drop Intake Rate Intake Rate Conductivity Rate Level Drop # Conductivity (in) (MM:SS.ss) (MM.mm) (inches/min) (inches/hr) (inches/hr) (inches/hr) 1.00 28 00 00 1 1.0 28:00.00 28.00 0.0357 2.14 0.73 1.00 53 46 00 2 1.0 53:46.00 53.77 0.0186 1.12 0.38

1.12 0.38 0.39 0.83 60 00 00 3 0.8 60:00.00 60.00 0.0138 0.83 0.28 0.50 60 00 00 4 0.5 60:00.00 60.00 0.0083 0.50 0.17

Photograph 1 (Top left): TP-01: Sprinkler system, wires, roots between 0.5 and 1.5 feet below ground surface. Photograph 2 (Top right): TP-01: Metal nails encountered between 0.5 and 1.5 feet below ground surface. Photograph 3 (Bottom left): TP-02: Sprinkler system and brick encountered between 0.25 and 3.25 feet below ground surface . Mavis #2296 – Additional Infiltration Testing SELECT PROJECT PHOTOGRAPHS 460 Prospect Avenue West Orange, NJ ECS Project 44:2100-A January 23, 2025 Mavis Tire Supply, LLC

Photograph 4 (Top left): TP-03: Sprinkler system and wires encountered between 0.5 and 3.0 feet below ground surface. Photograph 5 (Top right): TP-04:Subgrade and fill materials encountered between 0.0 and 1.2 feet below ground surface. Photograph 6 (Bottom left): TP-04: Glass bottle recovered from approximately 3.0 feet below ground surface. Mavis #2296 – Additional Infiltration Testing SELECT PROJECT PHOTOGRAPHS 460 Prospect Avenue West Orange, NJ ECS Project 44:2100-A January 23, 2025 Mavis Tire Supply, LLC

Photograph 7 (Top left): TP-05: 10 inches of asphalt underlain by gravel. Wires, large gravel, cobble, and brick encountered between 1.0 and 3.0 feet below ground surface. Photograph 8 (Top right): TP-05: Reddish brown Silt and Sand Loam encountered between 3.0 and 9.0 feet-below ground surface. Photograph 9 (Bottom left): TP-05: Fill encountered. Mavis #2296 – Additional Infiltration Testing SELECT PROJECT PHOTOGRAPHS 460 Prospect Avenue West Orange, NJ ECS Project 44:2100-A January 23, 2025 Mavis Tire Supply, LLC

Attachment 3 Laboratory Testing

Laboratory Testing Summary Atterberg Limits Moisture - Density CBR (%) **Percent Sample ^MC Soil #Organic Sample Location Depth (ft) Passing No. Number (%) Type <Maximum <Optimum Content (%) LL PL PI 200 Sieve 0.1 in. 0.2 in. Density (pcf) Moisture (%) TP-01 S-1 4 16.5 37.6 TP-02 S-1 4 11.7 38.1 Notes: See test reports for test method, ^ASTM D2216-19, *ASTM D2488, **ASTM D1140-17, #ASTM D2974-20e1 < See test report for D4718 corrected values Definitions: MC: Moisture Content, Soil Type: USCS (Unified Soil Classification System), LL: Liquid Limit, PL: Plastic Limit, PI: Plasticity Index, CBR: California Bearing Ratio, OC: Organic Content Project: Mavis #2296 - Additional Infiltration Testing Project No.: 44:2100-A Client: Mavis Tire Supply, LLC Date Reported: 1/29/2025 Office / Lab Address Office Number / Fax