Geotechnical Engineering Report Addendum No 1 Results of Testing 01 29 2025 submission

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) = 8.5 Exploration ID: TP-03 Elevation (ft) Existing Ground Level: 619.0 Elevations are approximate and based on Google Earth©. Proposed SWM Basin Bottom Level: - Seasonal High Water Table: - Termination: 610.5 Mark Most Top Elevation/Bottom Observed Water Table Soil Morphological USDA Soil Texture Hydraulically Elevation Elevation Note Observations Restrictive (ft.) (ft.) 10 YR 4/2 dark grayish Loamy Silt 619.0/618.5 brown, moist, blocky, Topsoil, contains roots loose

, moist, blocky, Topsoil, contains roots loose 10 YR 3/2 very dark grayish brown, moist, Fill, plastic sprinkler Silt Loam x 618.5/616.0 blocky, friable, 10% system gravel 5 YR 3/3 dark reddish brown, moist, single Sandy Silt 616.0/610.5 Not encountered Bucket refusal @ 8.5' bgs grain & blocky, loose, 50% gravel