Geotechnical Engineering Report 12 10 2024 submission

Mavis Store #2296 December 10, 2024 ECS Project No. 44:2100 Page 5 3.0 FIELD EXPLORATION AND LABORATORY TESTING Our exploration procedures are explained in greater detail in Appendix B in the inserts titled Subsurface Exploration Procedures. Our overall scope of work, completed with one (1) authorized mobilization, consisted of drilling eight (8) soil test borings. Each exploration location was located using a hand-held Global Positioning System device, and their approximate, as-completed locations are shown on the Boring Location Diagram in Appendix A. Prior to mobilizing to the site to conduct the soil borings, each of the boring locations were scanned for the presence of buried private utilities via non-intrusive detection methods prior to exploration. Soil test borings were completed with a track-mounted, hollow-stem auger drill rig equipped with an automatic drop hammer for conducting Standard Penetration Testing (SPT). SPT testing is utilized to measure N- values and obtain samples of the encountered subsurface materials. 3.1 SUBSURFACE CHARACTERIZATIONS Generally, the subsurface conditions encountered were consistent with the published geologic mapping available from the New Jersey Geological and Water Survey via NJ-GeoWeb and the United States Department of Agriculture Natural Resources Conservation Service (USDA-NRCS) via Web Soil Survey for the general site vicinity. Refer to Appendix A for geologic maps for the general vicinity of the project site. Generalized characterizations of the materials encountered within the completed explorations are tabulated below. Refer to the Generalized Subsurface Soil Profiles in Appendix A and the Geotechnical Borehole Logs and Test Pit Logs in Appendix B for more complete soil descriptions. APPROXIMATE DEPTH RANGES OF SPT(1) STRATUM DESCRIPTIONS ENCOUNTERED N-VALUES (bpf)(2) (feet-bgs) N/A  6

ENCOUNTERED N-VALUES (bpf)(2) (feet-bgs) N/A  6 inches of asphalt (B-01 through B-03, and B-08) (Surface 0.0 – 0.5 N/A  6 inches of topsoil (B-04 through B-07) Cover)  USCS: SM, ML  Varying amounts of gravel and fine-grained soils STRATUM I  Loose to very dense granular materials 0.5 – 4.0 4 – 71/7” (Probable Fill)  Moist  Encountered below surface cover in each boring except B-04 and B-05  USCS: ML, ML/CL, CL/ML, SM, GC-GM  Varying amounts of gravel and fine-grained soils  Medium dense to very dense granular materials STRATUM II 0.25 – 15.0  Stiff to very hard fine-grained materials 12 – 82/9” (Natural Soils)  Moist  Encountered below surface cover and/or Stratum I in each boring STRATUM III  USCS: Sampled as SM (Weathered 13.0 – 15.0  Very dense granular material 50/3” Rock)  Encountered below Stratum II in Boring B-02 Notes: (1) Standard Penetration Testing (2) Blows per foot