PB 22 10 Altera 769 LLC Filed Application with Exhibits Final Site Plan Phase 2

Basin Flood Testing Soil Profile Pit #: SPP-3 (Stormwater Basin Area Investigation) Date 12/14/2021 - 12/16/2021 Project Proposed Site Improvements Project Number: 2530-99-006E Location 790 Northfield Avenue, West Orange, New Jersey Client: Altera Development Company Surface Elevation (ft): 481 Weather: Clear, 55°F Proposed Location: SWM Logged By: J. Scardigno MUNICIPALITY : West Orange BLOCK: 166.15 LOT(s): 9 Depth of Test Pit: 10.0 Feet Area of Test Pit: 50.0 Square Feet Note: 50 square feet minimum Description of Rock Stratum: Type of Rock/Fractured Rock: Basalt Name of Formation: Rahway Till Average Fracture Spacing: 0 inches Type of Fractures: Open (wide), Clean, Width of Openings, ( ___ mm ) Open (wide), Infilled with Fines, Width of Openings, (approx. 5 mm) X Tight (Closed) Orientation of Fractures: X Horizontal (Parallel to Pit Bottom) or Nearly So Inclined Vertical (Parallel to Sides of Pit) or Nearly So Hardness of Rock: Rippable by Hand Tools X Not Rippable by Hand Tools, Rippable by Machine Not Rippable by Machine, Explosives Used Date of First Basin Flooding: 12/14/2021 Time of First Basin Flooding: 4:30 PM Result of First Basin

osives Used Date of First Basin Flooding: 12/14/2021 Time of First Basin Flooding: 4:30 PM Result of First Basin Flooding: Basin Drained within 24 hours by on X Basin Did Not Drain within 24 hours (Time) (Date) Date of Second Flooding: 12/15/2021 7a. Time of Second Flooding: Result of Second Basin Flooding: Basin Drained within 24 hours by on (Drained within 12 hrs?) (Time) (Date) Basin Did Not Drain within 24 hours Permeability Rate: 0 New Jersey Stormwater Best Management Practices Manual- Appendix E (2020) O:\EARTH Projects\2530 Altera Development\99-006E West Orange\Soil Logs\Basin Flood Test - West Orange, NJ updated