2025 06 18 WEH Slope Stability Analysis Letter Report

NLB-2 Log of Boring Project West Essex Highlands 1 of 2 101049801 Location Elevation and Datum West Orange, New Jersey Approx. el. 612.0 (NAVD 88) Drilling Company Date Started Date Finished Craig Geotechnical Drilling 4/30/2025 Drilling Equipment Rock Depth ATV Rig 140 Drop (in) Sample Description +612.0 5 Completion - 0 - Core 24 HR. 2 - Mark Aquino Field Engineer Rebecca Blocker 30 Depth Scale Sample Data 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) 10.0 ft Disturbed First 0 Brown Silty fine to coarse SAND, some gravel, trace clay (moist) [SM] Remarks N-Value (Blows/ft) Started drilling at 9:18 AM on 4/30/2025. S-1 at 0 ft 1 1 S-1 18 4 3 6 2 Dark brown Silty fine to coarse SAND, some gravel, trace clay with root hairs (moist) [SM] (Drilling Fluid, Casing Depth, Fluid Loss, Drilling Resistance, etc.) 10 20 30 40 1 SS 4" diameter steel Casing Depth (ft) 8.0 Drop (in) 30 S-2 at 2 ft 15 8 3 S-2 SS Sampler Hammer Number of Samples Coring (min) Sampler 20.0 ft 3-7/8in Tricone Roller Bit Casing Diameter (in) Casing Hammer 4/30/2025 Completion Depth Size and Type of Bit 3 18 10 12 4 No Recovery Drove casing to 4 ft. Drilled to 4 ft. S-3 at 4 ft 14 S-3 SS 19 5 0 29 10 4 6 Brown Clayey fine to coarse SAND, some silt, trace gravel (wet) [SM] S-4 at 6 ft 12 S-4 SS 6 S-5 SS 13 7 6 25 12 10 8 Brown Silty fine to coarse SAND, trace clay (wet) [SM] 4 50/1" Drove casing to 8 ft. Drilled to 8 ft. S-5 at 50/1" 8 ft 9 +602.0 10 Gray BASALT [BEDROCK] Drilled to 10 ft. Hard drilling. Rig chattering. C-1 at 10 ft 07:15 12 04:14 C-1 13 04:19 RQD=43"/60"=72% 03:30 REC=60"/60"=100% 11 NQ Material Symbol Sheet Project No. 14 06:19 15 Gray BASALT [BEDROCK] C-2 at 15 ft 04:45 16 Template: Log-BH; Strip: BH-GEO; Printed on 06/17/2025