2026 02 12 Crestmont CC and Eagle Rock Ave Stormwater Management Report

101049802 8/23/2025 Eagle Rock Ave Widening Project West Orange, New Jersey TABLE 1 - SUMMARY OF PROFILE TEST PITS AND INFILTRATION TESTING RESULTS Infiltration Test Determined Type of Percent Fine Determined Profile Pit ApproximateExisti Top of Weathered or Approximate Observed Top of Approximate Bottom of Observed Groundwater Level or Depth Measured Hydraulic Profile Test ID Approximate Profile Pit Bottom Seasonal High Infiltration Test material Passing Hydrologic Soil Remarks Completed Date ng Surface Grade Competent Bedrock Soil Mottling Layer Observed Soil Mottling Layer Water

Completed Date ng Surface Grade Competent Bedrock Soil Mottling Layer Observed Soil Mottling Layer Water Seepage (most restrictive Conductivity Groundwater Type the #200 Sieve Group (HSG) layer) (inches below surface (el) (ft) (el) (ft) (el) (ft) (el) (ft) (el) (ft) (el) (el) (inch/hour) % grade) TP-1 4/25/2024 538 4 534 4 534 - NE - NE - NE NE Tube 24 0.00202 50.9 D TP-2

- NE NE Tube 24 0.00202 50.9 D TP-2 4/25/2024 537 9 528 9 528 - NE - NE 8 529 529.0 - - - - - TP-3 4/26/2024 542 8 534 8 534 - NE - NE - NE NE Tube 12 0.00449 51.7 D TP-4 4/25/2024 541 8 533 8 533 - NE - NE - NE NE - - - - - TP-5 4/26/2024 550 7.5 542.5 7.5 542.5 - NE - NE - NE NE Tube 12 0.0484 46.6 D TP-6 4/26/2024 2 5.5 -3.5 5.5 -3.5 - NE - NE - NE NE Tube 18 0.000417 93.0 D TP-7 4/26/2024 548 3 545 3 545 - NE - NE - NE NE Tube 8 0.0253 56.2 D TP-8

- NE NE Tube 8 0.0253 56.2 D TP-8 4/26/2024 544 7 537 7 537 4 540 7 537 6 538 540.0 Tube 20 0.00182 57.6 D TP-9 4/26/2024 553 8 545 8 545 - NE - NE - NE NE Tube 24 0.00517 47.1 D TP-10 4/25/2024 537 11 526 11 526 1 536 2 535 7.7 529.3 536.0 Tube 16 0.000858 65.4 D TP-11 4/15/2025 543 7 536 7 536 - NE - NE - NE NE Tube 21 0.0048 60.0 D TP-12 4/15/2025 548.5 8 540.5 8 540.5 - NE - NE - NE NE Tube 12 0.015 46.1 D TP-13 4/15/2025 551 8.5 542.5 8.5 542.5 - NE - NE 3 548 548.0 Tube 30 0.0434 39.0 D TP-14

NE 3 548 548.0 Tube 30 0.0434 39.0 D TP-14 4/15/2025 559 1.75 557.25 1.75 557.25 - NE - NE - NE NE Tube 15 0.0126 40.1 D TP-15 4/15/2025 551 3 548 3 548 - NE - NE - NE NE Tube 16 0.00747 52.4 D TP-16 4/14/2025 562.5 10.5 552 9 553.5 - NE - NE - NE NE Tube 30 0.0118 41.4 D Tube A 6 0.00494 37.8 D TP-17 7/15/2025 566 12 554 12 554 - NE - NE - NE NE Tube B 6 0.00137 45.0 D TP-18 4/14/2025 567 4 563

0.00137 45.0 D TP-18 4/14/2025 567 4 563 3.75 563.25 - NE - NE - NE NE Tube 18 0.0104 42.6 D TP-19 4/14/2025 563 2 561 1 562 - NE - NE - NE NE Tube 4 0.0333 36.2 D TP-20 4/14/2025 566.5 2 564.5 2 564.5 1.5 565 2 564.5 - NE 565.0 Tube 18 0.00811 55.6 D TP-21 4/14/2025 539.5 6.5 533 6.5 533 4 535.5 6 533.5 1 538.5 538.5 Tube 20 0.000981 71.1 D LEGEND NE Not Encountered NOTES 1 The infiltration tests were performed per Chapter 12, Subsection A2: Tube Permeameter Test provided in the NJSBMP Manual dated March 2024. 2 Refer to profile test pits and lab results for details. 3 The elevations and depths provided in this table are approximate. \\langan.com\data\PAR\data8\101049801\Project Data\_Discipline\Geotechnical\Reports\SWM

3 The elevations and depths provided in this table are approximate. \\langan.com\data\PAR\data8\101049801\Project Data\_Discipline\Geotechnical\Reports\SWM Investigation\PROGRESS - Summary Table