12 2026 02 12 Crestmont CC Stormwater Management Report

0 +538.0 Dark gray to black Silty f-c SAND, some roots (dry) [TOPSOIL] Started excavating on 4/25/2024. GRAB S-1 +537.0 1 Gray coarse GRAVEL (dry) [FILL] GRAB S-2 +536.0 2

+536.0 2 Brown Sandy SILT, some f-c gravel, trace roots, trace cobbles HSG taken from 24" to 36" bgs. \\LANGAN.COM\DATA\PAR\DATA8\101049801\PROJECT DATA\_DISCIPLINE\GEOTECHNICAL\GINTLOGS\101049801_TEST PITS.GPJ ... 8/25/2025 10:49:07 AM ... Report: Log - LANGANTP (moist) GRAB S-3 3 Refusal encountered at 2.5 to 4ft bgs (bucket +534.0 4 teeth scraping at bottom). End of Test Pit at 4ft

End of Test Pit at 4ft bgs. Top of bedrock was observed to slope East to West along Eagle Rock Ave from 2.5ft (east) to 4ft (west) bgs in 4ft span. 5 Completed excavating on 4/25/2024. Test pit backfilled with excavated material upon completion. 6 Easy digging observed from 0 to 4ft bgs.

No mottling nor groundwater seepage obeserved in the dug test pit. 7 8 9 10 11 12

13 14 15

LOG OF TEST PIT TP-2 Sheet 1 of 1 PROJECT NAME PROJECT NUMBER DATE Eagle Rock Ave Widening 101049801 4/25/2024 LOCATION ELEVATION West Orange, NJ Approx. el 537 (NAVD88) EXCAVATION CONTRACTOR DEPTH WATER LEVEL - First WATER LEVEL - Completion Semeraro Construction, Co., Inc. 9 ft 9 ft - EQUIPMENT FOREMAN LANGAN PERSONNEL CAT 306

LANGAN PERSONNEL CAT 306 Excavator Mike Marie Vilsaint SAMPLE Depth Symbol ELEV Number DESCRIPTION REMARKS Type (feet) Scale 0

0 +537.0 Dark gray to black Silty f-c SAND, some roots (dry) [TOPSOIL] Started excavating on 4/25/2024. GRAB S-1 +536.0 1 Dark gray SILT, trace glass, trace roots (dry) [FILL] GRAB S-2 2 \\LANGAN.COM\DATA\PAR\DATA8\101049801\PROJECT

2 \\LANGAN.COM\DATA\PAR\DATA8\101049801\PROJECT DATA\_DISCIPLINE\GEOTECHNICAL\GINTLOGS\101049801_TEST PITS.GPJ ... 8/25/2025 10:49:08 AM ... Report: Log - LANGANTP +534.5 Tan SILT, trace roots (moist) 3 GRAB S-3 +533.0 4 Brown Silty fine SAND, some gravel, trace cobbles (wet) 5

5 6 GRAB S-4 7 8 Groundwater seepage observed at 8ft bgs. Groundwater ponding observed at 9ft bgs. +528.0 9 Refusal encountered at 9ft bgs (bucket teeth