2025 06 18 WEH Slope Stability Analysis Letter Report

TP-1 Log of Test Pit Project 1 of Date West Essex Highlands Location 101049801 11/15/2024 Elevation and Datum West Orange, New Jersey Excavation Company Approx. el. 606.0 (NAVD 88) Depth Frank Semeraro Construction Excavation Equipment Water Level - First 13.0 ft Roy Westervelt +606.0 Depth Scale Topsoil (Approx. 8") [TOPSOIL] 0 Light Brown fine SAND, some silt, some fine to coarse gravel, some cobbles with roots (dry) [SM] 1 Type DESCRIPTION +605.3 Jordy Moina REMARKS Began excavating 11/15/2024 at 7:15 AM. Cobbles and boulders (12" to 60") observed on the surface. 2 Roots 1" to 1.5" in diameter extend to 2 ft bgs. 3 Fine roots extend to 3 ft bgs. +602.2 Reddish brown fine to medium SAND, some fine to coarse gravel, trace silt, trace clay (moist) [SP] 4 5 6 7 8 +597.3 Reddish brown to Dark reddish brown SILT, some clay, some fine to coarse sand, some fine to coarse gravel (wet) [DECOMPOSED ROCK] 9 Boulders extend to 9 ft bgs. 10 +594.9 Gray ROCK FRAGMENTS some f-c sand, some silt, trace clay (wet) [DECOMPOSED ROCK] 11 Water seepage observed at 11 ft bgs. 12 +593.0 End of Test Pit at 13.0ft. 11 Field Engineer SAMPLE Number Elev. (ft) Water Level - Completion 11 Excavation Foreman John Deere 75G SYMBOL Sheet Project No. 13 14 15 16 17 18 19 20 Langan Cloud Database, Project : 101049801, West Essex Highlands. Produced at 01/03/2025 19:37:06 Max reach of excavator at 13 ft. End of test pit 11/15/2024 at 8:07 AM. 1

TP-2 Log of Test Pit Project 1 of Date West Essex Highlands Location 101049801 11/15/2024 Elevation and Datum West Orange, New Jersey Excavation Company Approx. el. 582.0 (NAVD 88) Depth Frank Semeraro Construction Excavation Equipment Water Level - First 5.5 ft Excavation Foreman Roy Westervelt +582.0 Topsoil (Approx. 12") [TOPSOIL] +581.0 Light brown fine SAND, some silt, some fine to coarse gravel with roots (dry) [SM] Depth Scale Jordy Moina REMARKS Type DESCRIPTION 0 Began excavating 11/15/2024 at 8:20 AM. 1 Thick roots observed at 1 ft bgs. 2 Fine roots observed to 32" bgs. 3 Cobbles and boulders observed to 3.5 ft bgs. +578.0 Reddish brown BOULDER, some fine to medium sand, some silt (dry) [BOULDER] 4 5 +576.5 End of Test Pit at 5.5ft. 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Langan Cloud Database, Project : 101049801, West Essex Highlands. Produced at 01/03/2025 19:37:06 N/A - Field Engineer SAMPLE Number Elev. (ft) Water Level - Completion N/A - John Deere 75G SYMBOL Sheet Project No. Bucket refusal at 5.5 ft. 1

TP-3 Log of Test Pit Project 1 of Date West Essex Highlands Location 101049801 11/15/2024 Elevation and Datum West Orange, New Jersey Excavation Company Approx. el. 550.0 (NAVD 88) Depth Frank Semeraro Construction Excavation Equipment Water Level - First 12.0 ft Roy Westervelt Brown SILT, some fine to medium sand, some fine to coarse gravel, with roots (dry) [TOPSOIL] Light brown fine to medium SAND, some silt, some fine to coarse gravel, with roots (dry) [SM] 0 Began excavating 11/15/2024 at 1:00 PM. 1 S-1 at 1 ft S-1 +549.5 REMARKS Type +550.0 Depth Scale Jordy Moina GRAB DESCRIPTION 2 +547.3 4 GRAB 3 S-2 Light reddish brown fine to medium SAND, some fine to coarse gravel, trace silt (dry) [SP] Cobbles and boulders observed to 40" bgs. S-2 at 3.5 ft 5 6 7 8 9 Fine roots observed to 8 ft bgs. GRAB Light brownish gray SILT, some fine sand, some fine to coarse gravel with fine roots (dry) [ML] S-3 +542.0 S-3 at 8.5 ft 10 11 +538.0 End of Test Pit at 12.0ft. 12 13 14 15 16 17 18 19 20 Langan Cloud Database, Project : 101049801, West Essex Highlands. Produced at 01/03/2025 19:37:06 N/A - Field Engineer SAMPLE Number Elev. (ft) Water Level - Completion N/A - Excavation Foreman John Deere 75G SYMBOL Sheet Project No. Excavator max reach at 12 ft bgs. End of test pit 11/15/2024 at 1:41 PM. 1

TP-4 Log of Test Pit Project 1 of Date West Essex Highlands Location 101049801 11/15/2024 Elevation and Datum West Orange, New Jersey Excavation Company Approx. el. 614.0 (NAVD 88) Depth Frank Semeraro Construction Excavation Equipment Water Level - First 3.7 ft Excavation Foreman Roy Westervelt +614.0 +613.5 Depth Scale Type DESCRIPTION Jordy Moina REMARKS Topsoil (Approx. 6") [TOPSOIL] 0 Began excavating 11/15/2024 at 2:00 PM. Light brown fine to medium SAND, some fine to coarse gravel, trace silt, with fine roots (dry) [SP] 1 Thick roots observed to 1 ft bgs. S1 3 Reddish brown BOULDER mixed with some fine to coarse sand, trace silt (dry) [BOULDER] End of Test Pit at 3.7ft. GRAB 2 +610.5 +610.3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Langan Cloud Database, Project : 101049801, West Essex Highlands. Produced at 01/03/2025 19:37:07 N/A - Field Engineer SAMPLE Number Elev. (ft) Water Level - Completion N/A - John Deere 75G SYMBOL Sheet Project No. S-1 at 3.2 ft Cobbles and boulders observed to 3.5 ft bgs. Hard excavating Excavator bucket refusal at 3.66 ft. End of test pit 11/15/2024 at 2:50 PM. 1

TP-5 Log of Test Pit Project 1 of Date West Essex Highlands Location 101049801 11/18/2024 Elevation and Datum West Orange, New Jersey Excavation Company Approx. el. 584.0 (NAVD 88) Depth Frank Semeraro Construction Excavation Equipment Water Level - First 4.8 ft Excavation Foreman Roy Westervelt +584.0 +583.5 Depth Scale Topsoil [TOPSOIL] 0 Light brown fine to medium SAND, some silt, some fine to coarse gravel (dry) [SM] 1 Type DESCRIPTION N/A - Field Engineer Jordy Moina SAMPLE Number Elev. (ft) Water Level - Completion N/A - John Deere 75G SYMBOL Sheet Project No. REMARKS Began excavating 11/18/2024 at 9:30 AM. 2 +581.0 Light reddish brown fine to medium SAND, some silt, some fine to coarse gravel (dry) [SM] 3 4 +579.5 +579.2 Reddish brown BOULDER mixed with some fine to medium sand, some silt [BOULDER] End of Test Pit at 4.8ft. 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Langan Cloud Database, Project : 101049801, West Essex Highlands. Produced at 01/03/2025 19:37:07 Fine to thick roots observed to 3 ft bgs. Cobbles and boulders (up to 18") observed to 52" bgs. Bucket refusal at 4.8 ft bgs. End of test pit 11/18/2024 at 10:05 AM. 1

TP-6 Log of Test Pit Project 1 of 1 Date West Essex Highlands Location 101049801 11/18/2024 Elevation and Datum West Orange, New Jersey Excavation Company Approx. el. 528.0 (NAVD 88) Depth Frank Semeraro Construction Excavation Equipment Water Level - First 12.0 ft Roy Westervelt +528.0 Depth Scale Topsoil (Approx. 8") [TOPSOIL] 0 Yellow brown fine to medium SAND, some fine to coarse gravel, trace silt (dry) [SP] 1 Type DESCRIPTION N/A - Field Engineer Jordy Moina SAMPLE Number Elev. (ft) Water Level - Completion N/A - Excavation Foreman John Deere 75G SYMBOL Sheet Project No. REMARKS Began excavation 11/18/2024 at 7:40 AM. +527.3 2 Fine roots observed to 2.5 ft bgs. 3 4 +523.0 Reddish brown fine to medium SAND, some fine to coarse gravel, trace silt (dry) [SP] 5 6 7 8 Reddish brown fine to medium SAND, some fine to coarse gravel, trace silt (moist) 9 10 11 +516.0 End of Test Pit at 12.0ft. 12 Cobbles and boulders (6" to 20" diameter) observed to 12 ft bgs. Excavator max reach at 12 ft bgs. End of test pit 11/18/2024 at 8:12 AM. 13 14 15 16 17 18 19 20 Langan Cloud Database, Project : 101049801, West Essex Highlands. Produced at 01/03/2025 19:37:07

TP-7 Log of Test Pit Project 1 of Date West Essex Highlands Location 101049801 11/18/2024 Elevation and Datum West Orange, New Jersey Excavation Company Approx. el. 616.0 (NAVD 88) Depth Frank Semeraro Construction Excavation Equipment Water Level - First 5.0 ft Excavation Foreman Roy Westervelt +616.0 Depth Scale Topsoil (Approx. 10") [TOPSOIL] 0 Light brown to light reddish brown fine to medium SAND, some silt, some fine to coarse gravel (dry) [SM] 1 Jordy Moina REMARKS Type DESCRIPTION N/A - Field Engineer SAMPLE Number Elev. (ft) Water Level - Completion N/A - John Deere 75G SYMBOL Sheet Project No. Began excavating 11/18/2024 at 11:45 AM. +615.2 2 3 Hard excavating. Cobbles and boulder (up to 30" diameter) observed to 40" bgs. +612.2 +611.0 Reddish brown fine to medium sand, some silt (dry) [SP] 4 POSSIBLE BOULDER @ 5 ft 5 End of Test Pit at 5.0ft. 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Langan Cloud Database, Project : 101049801, West Essex Highlands. Produced at 01/03/2025 19:37:08 Excavator bucket refusal at 5 ft bgs. End of test pit 11/18/2024 at 11:58 AM. 1

TP-8 Log of Test Pit Project 1 of Date West Essex Highlands Location 101049801 11/18/2024 Elevation and Datum West Orange, New Jersey Excavation Company Approx. el. 606.0 (NAVD 88) Depth Frank Semeraro Construction Excavation Equipment Water Level - First 9.0 ft Excavation Foreman Roy Westervelt +606.0 +605.5 Depth Scale Topsoil (Approx 6") [TOPSOIL] 0 Light orange brown fine to medium SAND, some silt, some fine to coarse gravel (dry) [SM] 1 Type DESCRIPTION N/A Field Engineer Jordy Moina SAMPLE Number Elev. (ft) Water Level - Completion N/A - John Deere 75G SYMBOL Sheet Project No. REMARKS Began excavating 11/18/2024 at 12:14 PM. 2 3 4 +601.4 Reddish brown fine to coarse SAND, some fine to coarse gravel, some silt, trace clay (moist) [SP] 5 6 Approx. 5 ft diameter boulder encountered. +599.0 7 BOULDER 8 +597.0 End of Test Pit at 9.0ft. 9 10 11 12 13 14 15 16 17 18 19 20 Langan Cloud Database, Project : 101049801, West Essex Highlands. Produced at 01/03/2025 19:37:08 Cobbles and boulder observed to 9 ft bgs. Stopped excavating at 9 ft bgs due to large boulders in test pit. End of test pit 11/18/2024 at 1:02 PM. Approx. 5 ft diameter boulder encounte 1

NTP-1 Log of Test Pit Project 1 of Date West Essex Highlands Location 101049801 4/10/2025 Elevation and Datum West Orange, New Jersey Excavation Company Approx. el. 599.5 (NAVD 88) Depth Frank Semeraro Construction Excavation Equipment Water Level - First 4.0 ft Excavation Foreman +599.5 +599.0 Roy Westervelt Depth Scale Topsoil (Approx. 6") [TOPSOIL] 0 Brown fine to coarse SAND, some silt, some gravel with cobbles (moist) [SM] 1 Bhumi Peer REMARKS Type DESCRIPTION - Field Engineer SAMPLE Number Elev. (ft) Water Level - Completion - CAT Excavator 308 SYMBOL Sheet Project No. Began excavating 4/10/2025 at 9:40 AM. Rock fragments observed at 6" bgs. Roots extend to 2 ft bgs. 2 End of Test Pit at 4.0ft. 4 GRAB +595.5 G-1 3 Excavator bucket refusal at 4 ft. No water seepage or mottling observed in test pit. 5 End of test pit 4/10/2025 at 9:50 AM. Test pit backfilled with excavated soil and area leveled. 6 Top of Rock Encountered at 4 ft. 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Langan Cloud Database, Project : 101049801, West Essex Highlands. Produced at 06/17/2025 21:23:47 1

NTP-2 Log of Test Pit Project 1 of Date West Essex Highlands Location 101049801 4/10/2025 Elevation and Datum West Orange, New Jersey Excavation Company Approx. el. 586.0 (NAVD 88) Depth Frank Semeraro Construction Excavation Equipment Water Level - First 6.5 ft Excavation Foreman +586.0 Topsoil (Approx. 12") [TOPSOIL] +585.0 Brown fine to coarse SAND, some gravel, some silt with cobbles and roots (moist) [SM] Roy Westervelt Depth Scale Type DESCRIPTION REMARKS Began excavating 4/10/2025 at 10:07 AM. 1 Roots greater than 1" in diameter extend to 1 ft bgs. Roots 1/2" to 1" in diameter extend to 1.5 ft bgs. Roots less than 1/2" in diameter extend to 2 ft bgs. GRAB GRAB 4 +581.5 G-1 3 G-2 Brown Gravelly fine to coarse SAND, some silt with cobbles and boulders (moist) [SP] Bhumi Peer 0 2 +583.0 - Field Engineer SAMPLE Number Elev. (ft) Water Level - Completion - CAT Excavator 308 SYMBOL Sheet Project No. DECOMPOSED ROCK Excavator started scraping hard material at 4.5 ft. 5 6 +579.5 End of Test Pit at 6.5ft. 7 8 Excavator bucket refusal at 6.5 ft. No water seepage or mottling observed in test pit. End of test pit 4/10/2025 at 10:20 AM. Test pit backfilled with excavated material and area leveled. Top of Rock Encountered at 6.5 ft. 9 10 11 12 13 14 15 16 17 18 19 20 Langan Cloud Database, Project : 101049801, West Essex Highlands. Produced at 06/17/2025 21:23:47 1