J_2024 05 09_West Orange Stormwater Management Plan

Summary of Chemical Testing and Soil Box Testing Proposed West Orange Switching Station Lifecycle Project West Orange, Essex County, New Jersey PSE&G Exploration Number SBH-1 SBH-1 SBH-3 SBH-3 SBH-3 SBH-4 SBH-4 SBH-4 Exploration Approximate Number Depth (ft.) SBH-1 1.5 SBH-2 2 SBH-5 3 Summary of Soil Box Tests Approximate Generalized Soil Description Depth (ft.) 3-5 Sandy Clayey Silt 9-11 Sandy Clayey Silt 1 Sandy Silt Fill 4-6 Sandy Clayey Silt Fill 8-10 Sandy Silty Clay 2 Silty Sand Fill 4-6 Sandy Clayey Silt Fill 8-10 Sandy Silty Clay Resistivity (ohm-cm) 5,960 3,640 18,500 8,940 6,010 15,300 10,900 1,540 Generalized Chloride Redox Electrical Sulfates Sulfides Soil Ion pH Potential Resistivity (ppm) (ppm) Description (ppm) (mV) (ohm-cm) Sandy Silt 99.4 5.30 54.4 ND 199 4,300 Fill Sandy Silt 38.8 5.58 90.2 ND 204 6,000 Fill Sandy Clayey Silt 4.12 3.44 34.9 ND 196 44,000 Fill *ND= Analyzed for but not detected MELICK-TULLY AND ASSOCIATES, a Division of GZA File No. 26.0092704.00 Plate 9