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

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

FIGURES Figure 1A and 1B Profile Test Pit Location Plan = = =

OVAL RD EAGLE ROCK AVE VE ELA UR LA TP-6 TP-5 TP-2 TP-1 TP-21 TP-18 TP-19 LEGEND Langan Engineering and TP-1 APPROXIMATE LOCATION OF PROFILE TEST PIT Environmental Services, LLC WITH TUBE PERMEAMETER TESTING WITHIN THE UPPER 40 INCHES 300 Kimball Drive Parsippany, NJ 07054 TP-20

Parsippany, NJ 07054 TP-20 T: 973.560.4900 F: 973.560.4901 www.langan.com NJ Certificate of Authorization No. 24GA27996400 TP- 2 APPROXIMATE LOCATION OF PROFILE TEST PIT PROFILE TEST PIT LOCATION PLAN Figure 1A © 2024 Langan AY Date: 2/13/2026 Time: 13:10 User: tgreen Style Table: Langan.stb Layout: CG101 Document Code: 101049802-0102-CG101-0102

LEGEND OVAL RD TP-1 APPROXIMATE LOCATION OF PROFILE TEST PIT EAGLE ROCK AVE VE E LA A UR L TP- 2 APPROXIMATE LOCATION OF PROFILE TEST PIT TP-10 TP-11 TP-12 TP-16 TP-13 TP-14 TP-17 Langan Engineering and Environmental Services, LLC 300 Kimball Drive Parsippany, NJ 07054 T: 973.560.4900 F: 973.560.4901

T: 973.560.4900 F: 973.560.4901 www.langan.com NJ Certificate of Authorization No. 24GA27996400 PROFILE TEST PIT LOCATION PLAN Figure 1B © 2024 Langan AY Date: 2/13/2026 Time: 07:52 User: tgreen Style Table: Langan.stb Layout: CG102 Document Code: 101049802-0102-CG101-0103

APPENDIX A LOGS OF PROFILE TEST PITS LANGAN

LOG OF TEST PIT TP-1 Sheet 1 of 1 PROJECT NAME PROJECT NUMBER DATE Eagle Rock Ave Widening 101049801 4/25/2024 LOCATION ELEVATION West Orange, NJ Approx. el 538 (NAVD88) EXCAVATION CONTRACTOR DEPTH WATER LEVEL - First WATER LEVEL - Completion Semeraro Construction, Co., Inc. 4 ft - - EQUIPMENT FOREMAN LANGAN PERSONNEL

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