2025 06 18 WEH Slope Stability Analysis Letter Report

LB-2 Log of Boring Project West Essex Highlands 1 of 3 101049801 Location Elevation and Datum West Orange, New Jersey Approx. el. 522.0 (NAVD 88) Drilling Company Date Started Date Finished Craig Geotechnical Drilling Co., Inc. 12/17/2024 Drilling Equipment Rock Depth ATV Rig 140 140 Drop (in) Water Level (ft.) Undisturbed 14 First Completion - 0 - Core 24 HR. 0 - Drilling Foreman Matt Michelotti Field Engineer Rebecca Blocker 30 Sample Description +522.0 Dark brown Silty fine to medium SAND, trace clay, with root pieces (moist) [TOPSOIL] Depth Scale 0 Light brown SILT, some fine to coarse sand, some clay, trace gravel (moist) [ML] +519.0 [POSSIBLE COBBLES] Remarks N-Value (Blows/ft) S-1 5 Began drilling 12/17/2024 at 10:41 AM. S-1 at 0 ft 4 2 1 2 S-2 at 2 ft 1 S-2 10 6 50/2" 50/2" 3 4 +517.0 Light brown Silty SAND, some gravel, trace clay (moist) [SM] (Drilling Fluid, Casing Depth, Fluid Loss, Drilling Resistance, etc.) 10 20 30 40 1 2 1 +520.0 Sample Data Type 2in OD Split Spoon Weight (lbs) Automatic Not Encountered Disturbed Recov. (in) Penetrresist BL/6in Automatic Weight (lbs) Number Elev. (ft) 4" diameter steel Casing Depth (ft) 15.0 Drop (in) 30 SS Sampler Hammer Number of Samples SS Sampler 50.1 ft 3-7/8in Tricone Roller Bit Casing Diameter (in) Casing Hammer 12/17/2024 Completion Depth Size and Type of Bit Hard drilling, rig chattering. 5 Drove casing to 5 ft. Drilled to 5 ft. S-3 at 5 ft 15 SS Light brown Silty SAND, some gravel, trace clay (moist) [SM] S-3 2 S-4 SS 26 6 7 7 50 24 40 57 50/2" S-4 at 7 ft 50/2" 8 Hard drilling, rig chattering. 9 Light brown Silty SAND, some gravel, trace clay (moist) [SM] 10 Drove casing to 10 ft. Drilled to 10 ft. S-5 at 10 ft 21 Light brown to gray fine to coarse SAND, some silt, some gravel (dry) [SM] S-5 SS 20 11 2 S-6 12 15 78 39 32 14 Brown fine to coarse SAND, some gravel, trace silt (moist) [SP] S-6 at 12 ft 29 39 13 +507.0 40 20 19 12 SS Material Symbol Sheet Project No. Drove casing to 15 ft. Drilled to 15 ft. S-7 at 15 ft 18 25 16 Template: Log-BH; Strip: BH-GEO; Printed on 01/03/2025