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) = 8.0 Exploration ID: TP-01 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: 611.0 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 friable

brown, moist, blocky, Topsoil, contains roots friable 7.5 YR 4/4 brown, Fill, contains metal nails, Silt Loam 618.5/617.0 moist, blocky, very plastic sprinkler system, friable roots 5 YR 3/3 dark reddish Infiltration Test at 615.0 SANDY LOAM x 617.0/611.0 Not encountered brown, moist, blocky, very friable, 10% gravel