2025 06 18 WEH Slope Stability Analysis Letter Report

NLB-1 Log of Boring Project West Essex Highlands 1 of 2 101049801 Location Elevation and Datum West Orange, New Jersey Approx. el. 582.0 (NAVD 88) Drilling Company Date Started Date Finished Craig Geotechnical Drilling 5/1/2025 Drilling Equipment Rock Depth ATV Rig Elev. (ft) 140 140 Drop (in) Sample Description +582.0 Dark brown SILT, trace fine to coarse sand, trace clay with roots and leaves (dry) [TOPSOIL] Water Level (ft.) No Recovery Completion - 0 - Core 24 HR. 2 - Drilling Foreman Mark Aquino Field Engineer Rebecca Blocker 30 Depth Scale Sample Data 0 Remarks N-Value (Blows/ft) S-1 5 Started drilling at 1:45 PM on 5/1/2025. S-1 at 0 ft 6 4 6 2 (Drilling Fluid, Casing Depth, Fluid Loss, Drilling Resistance, etc.) 10 20 30 40 1 2 1 +580.0 Undisturbed 7 First Type 2in OD Split Spoon Weight (lbs) Automatic 17.0 ft Disturbed Recov. (in) Penetrresist BL/6in Automatic Weight (lbs) Number 4" diameter steel Casing Depth (ft) 15.0 Drop (in) 30 SS Sampler Hammer Number of Samples Coring (min) Sampler 26.0 ft 3-7/8in Tricone Roller Bit Casing Diameter (in) Casing Hammer 5/2/2025 Completion Depth Size and Type of Bit S-2 at 2 ft 10 19 Drove casing to 4 ft. Drilled to 4 ft. S-3 at 4 ft 10 SS S-3 14 27 15 12 6 S-4 at 6 ft 47 S-4 SS 30 7 Orangish brown to gray Silty fine to coarse SAND, some gravel, trace clay (moist) [SM] 56 36 12 5 Orangish brown to gray Silty fine to coarse SAND, some gravel (moist) [SM] 0 4 18 65 35 22 8 43 S-5 SS Orangish brown to gray Silty fine to coarse SAND, some gravel (moist) [SM] S-2 SS 20 3 8 100 9 100 Drove casing to 8 ft. Drilled to 8 ft. S-5 at 8 ft . Stopped drilling at 2:30 PM on 5/1/2025. Started drilling at 7:15 AM on 5/2/2025. No Recovery 10 S-6 SS +572.0 S-7 SS 0 50/1" 50/1" Drove casing to 10 ft. Drilled to 10 ft. S-6 at 10 ft 50/1" 50/1" Drove casing to 15 ft. Drilled to 15ft. S-7 at 15 ft 11 12 13 14 . Material Symbol Sheet Project No. No Recovery 15 0 16 Template: Log-BH; Strip: BH-GEO; Printed on 06/17/2025