12 2026 02 12 Crestmont CC Stormwater Management Report

LOG OF TEST PIT TP-10 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. 11 ft 10.75 ft - EQUIPMENT FOREMAN LANGAN PERSONNEL

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

0 +537.0 Dark gray to black Silty SAND, some roots (dry) [TOPSOIL] Started excavating on 4/25/2024. GRAB S-1 +536.0 1 Light brown SILT, trace fine sand Mottling observed between 1 to 2ft bgs. GRAB S-2 +535.0

+535.0 2 Brown SILT, some f-c sand, trace gravel, trace cobbles (moist) HSG taken from 16" to 28" bgs. \\LANGAN.COM\DATA\PAR\DATA8\101049801\PROJECT DATA\_DISCIPLINE\GEOTECHNICAL\GINTLOGS\101049801_TEST PITS.GPJ ... 8/25/2025 10:49:12 AM ... Report: Log - LANGANTP [ML] 3 4 5 6 GRAB

GRAB S-3 7 8 Groundwater seepage observed at 7.7ft bgs. 9 10 +526.0 11 Groundwater ponding at 10.75ft bgs. End of Test pit at 11ft bgs Hard digging at about 11ft bgs. Completed excavating on 4/25/2024.

Completed excavating on 4/25/2024. Test pit backfilled with excavated material 12 upon completion. Easy digging observed from 0 to 11ft bgs. 13 14 15