2025 06 18 WEH Slope Stability Analysis Letter Report

NLB-4 Log of Boring Project West Essex Highlands 1 of 2 101049801 Location Elevation and Datum West Orange, New Jersey Approx. el. 609.0 (NAVD 88) Drilling Company Date Started Date Finished Craig Geotechnical Drilling 5/1/2025 Drilling Equipment Rock Depth ATV Rig Sample Description +609.0 - Core 3 24 HR. - Mark Aquino Rebecca Blocker 30 Depth Scale Sample Data Type Drop (in) - Recov. (in) Penetrresist BL/6in 140 Completion 0 Field Engineer Number Elev. (ft) 140 Undisturbed Drilling Foreman 0 Brown Silty fine to coarse SAND, trace gravel with roots (moist) [TOPSOIL] Remarks N-Value (Blows/ft) Started drilling at 7:52 AM on 5/1/2025. S-1 at 0 ft 1 1 +607.0 S-1 10 2 1 4 2 Brown Silty fine to coarse SAND, trace gravel, trace clay (moist) [SM] (Drilling Fluid, Casing Depth, Fluid Loss, Drilling Resistance, etc.) 10 20 30 40 1 SS 2in OD Split Spoon Weight (lbs) Automatic Water Level (ft.) S-2 at 2 ft 5 10 3 S-2 SS Automatic Weight (lbs) 5 First 20 20 10 12 4 Brown Clayey fine to coarse SAND, some silt, trace gravel (moist) [SM] Drove casing to 4 ft. Drilled to 4 ft. S-3 at 4 ft 16 6 5 +603.0 6 Gray GRAVEL, in spoon tip (wet) [GP] S-3 SS 4" diameter steel Casing Depth (ft) 10.0 Drop (in) 30 12.0 ft Disturbed 4 S-4 SS Sampler Hammer Number of Samples Coring (min) Sampler 22.0 ft 3-7/8in Tricone Roller Bit Casing Diameter (in) Casing Hammer 5/1/2025 Completion Depth Size and Type of Bit 1 10 16 12 100/4" 100/4" 7 +600.0 C-1 9 10 S-5 6 11 +597.0 21 100/4" 12 Gray BASALT [BEDROCK] Drove casing to 10 ft. Drilled to 10 ft. S-5 at 10 ft 10 SS Brown GRAVEL, some silt, some fine to coarse sand (wet) [GM] Drilled to 8 ft. C-1 at 8 ft RQD=50% 03:30 NQ 8 BOULDER REC=50% +601.0 S-4 at 6 ft Drove casing to 7 ft. Hard drilling. Rig chattering. 100/4" Drilled to 12 ft. Hard drilling. C-2 at 12 ft 08:54 14 05:32 C-2 15 04:40 RQD=31"/60"=52% 06:37 REC=57"/60"=95% 13 NQ Material Symbol Sheet Project No. 16 Template: Log-BH; Strip: BH-GEO; Printed on 06/17/2025