2025 06 18 WEH Slope Stability Analysis Letter Report

LB-4 Log of Boring Project West Essex Highlands 1 of 3 101049801 Location Elevation and Datum West Orange, New Jersey Approx. el. 548.0 (NAVD 88) Drilling Company Date Started Date Finished Craig Geotechnical Drilling Co., Inc. 12/13/2024 Drilling Equipment Rock Depth ATV Rig 140 Drop (in) Sample Description +548.0 Tannish brown SILT, some fine to coarse sand, trace coarse gravel (moist) [TOPSOIL] Brown Gravelly fine to medium SAND, trace silt (moist) [SP] Depth Scale Sample Data 0 1 N/A - S-1 5 Began drilling 12/13/2024 at 10:23 AM. S-1 at 0 ft 5 3 3 2 (Drilling Fluid, Casing Depth, Fluid Loss, Drilling Resistance, etc.) 10 20 30 40 2 S-2 at 2 ft 11 20 S-2 12 47 27 Rig Chattering from 3 ft to 4 ft. 53 5 Drove casing to 5 ft. Drilled to 5 ft. S-3 at 5 ft 7 S-3 SS 10 6 14 23 13 18 7 S-4 at 7 ft. Rig Chattering from 7 ft to 9 ft. Brown wash. 22 S-4 SS 30 8 12 26 10 Dark brown wash. Drove casing to 10 ft. Drilled to 10 ft. S-5 at 10 ft 40 S-5 SS 11 56 26 9 No Recovery N/A - 24 HR. Remarks N-Value (Blows/ft) 2 4 Brown fine to coarse SAND, trace silt, some fine to coarse gravel (moist) [SP] N/A Core Rebecca Blocker 30 3 Brown fine to coarse SAND, trace silt, some fine gravel (moist) [SP] Completion 0 Matt Michelotti 1 +546.0 13 Field Engineer Type Elev. (ft) 140 Undisturbed Drilling Foreman Recov. (in) Penetrresist BL/6in 2in OD Split Spoon Weight (lbs) Automatic Water Level (ft.) Number Automatic Weight (lbs) Not Encountered Disturbed First SS 4" diameter steel Casing Depth (ft) 25.0 Drop (in) 30 SS Sampler Hammer Number of Samples Coring (min) Sampler 45.1 ft 3-7/8in Tricone Roller Bit Casing Diameter (in) Casing Hammer 12/17/2024 Completion Depth Size and Type of Bit 56 0 60 116 Rig chattering from 11 ft to 15 ft. Spoon bouncing. +536.0 Reddish brown fine to coarse SAND, some silt, some fine to coarse gravel (moist) [SM] 12 29 13 S-6 5 No Recovery [BOULDER] 15 52 23 19 14 +533.0 S-6 at 12 ft 15 SS Material Symbol Sheet Project No. Drove casing to 15 ft. Drilled to 15 ft. S-7 at 15 ft 11 10 16 Template: Log-BH; Strip: BH-GEO; Printed on 01/03/2025