2025 06 18 WEH Slope Stability Analysis Letter Report

NLB-1 Log of Boring Project West Essex Highlands 2 of 2 101049801 Location Elevation and Datum +566.0 Type Sample Data Recov. (in) Penetrresist BL/6in Sample Description Depth Scale Number Elev. (ft) Approx. el. 582.0 (NAVD 88) Coring (min) West Orange, New Jersey Material Symbol Sheet Project No. 16 +565.0 17 Gray BASALT [BEDROCK] N-Value (Blows/ft) Remarks (Drilling Fluid, Casing Depth, Fluid Loss, Drilling Resistance, etc.) 10 20 30 40 Drilled to 17 ft. Hard drilling. Rig chattering. C-1 at 17 ft 05:20 09:09 C-1 NQ 19 20 06:04 RQD=0"/60"=0% 11:14 REC=47"/60"=78% 18 21 14:15 22 Gray BASALT [BEDROCK] C-2 at 22 ft 25 09:15 +556.0 End of Boring at 26.0ft. 26 27 28 29 30 31 32 33 34 35 36 Template: Log-BH; Strip: BH-GEO; Printed on 06/17/2025 C-2 NQ 24 04:57 RQD=11"/48"=23% 23 06:53 REC=48"/48"=100% 12:42 Core barrel clogging during coring. Stopped drilling at 10:30 AM on 5/2/2025. Upon completion, borehole backfilled to grade with soil cuttings.