2025 06 18 WEH Slope Stability Analysis Letter Report

LB-3 Log of Boring Project West Essex Highlands 1 of 2 101049801 Location Elevation and Datum West Orange, New Jersey Approx. el. 614.0 (NAVD 88) Drilling Company Date Started Date Finished Craig Geotechnical Drilling Co., Inc. 12/12/2024 Drilling Equipment Rock Depth ATV Rig 140 Drop (in) Sample Description +614.0 4 Completion - 0 - Core 24 HR. 2 - Matt Michelotti Field Engineer Brian McGlew 30 Depth Scale Sample Data Type 140 Undisturbed Drilling Foreman Recov. (in) Penetrresist BL/6in 2in OD Split Spoon Weight (lbs) Automatic Water Level (ft.) Number Automatic Weight (lbs) 9.0 ft Disturbed First 0 Tannish brown SILT, some fine to coarse sand, trace clay (moist) [TOPSOIL] Remarks N-Value (Blows/ft) Began drilling 12/12/2024 at 11:51 AM. S-1 at 0 ft 3 1 +612.0 S-1 15 6 3 4 2 Light brown fine to coarse SAND, some fine to coarse gravel, trace silt (dry) [SP] (Drilling Fluid, Casing Depth, Fluid Loss, Drilling Resistance, etc.) 10 20 30 40 5 SS Elev. (ft) 4" diameter steel Casing Depth (ft) 9.0 Drop (in) 30 S-2 at 2 ft 20 25 3 S-2 SS Sampler Hammer Number of Samples Coring (min) Sampler 19.0 ft 3-7/8in Tricone Roller Bit Casing Diameter (in) Casing Hammer 12/13/2024 Completion Depth Size and Type of Bit 24 29 5 Brown Gravelly fine to coarse SAND, trace silt (dry) [SP] 53 Rig Chattering from 3 ft to 4 ft . 28 4 Drove casing to 5 ft. Drilled to 5 ft . S-3 at 5 ft 13 7 Decomposed Rock in form, brown to gray fine to coarse GRAVEL, some fine to coarse sand, trace silt (moist) [DECOMPOSED ROCK] SS +607.0 S-3 15 S-4 SS 17 6 4 35 18 24 70 8 +605.0 9 Gray BASALT [BEDROCK] 70 S-4 at 7 ft Rig Chattering. Stopped drilling for the day at 1:50 pm on 12/12/2024. Resumed drilling at 7:25 am on 12/13/24. Drove casing to 9 ft. Drilled to 9 ft. C-1 at 9 ft 02:18 02:03 C-1 12 01:35 RQD=46"/60"=77% 11 REC=56"/60"=93% 10 03:01 NQ Material Symbol Sheet Project No. Brownish gray wash. 13 01:43 14 Gray BASALT [BEDROCK] C-2 at 14 ft 01:28 15 02:35 16 Template: Log-BH; Strip: BH-GEO; Printed on 01/03/2025