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North Oaks Company LLC <br />Project B2402335 <br />August 22, 2024 <br />Page 6 <br />Table S. Subsurface Profile Summary* <br />Soil Type - <br />Range of <br />ASTM <br />Penetration <br />Strata <br />Classification <br />Resistances <br />Commentary and Details <br />■ Encountered at the surface of all 14 boring locations and <br />consisted of silty sand and sandy silt. <br />Topsoil <br />SM, ML <br />N/A <br />0 Thicknesses at boring locations about 1/2 to 1 1/2 feet. <br />■ Brown to dark brown in color. <br />■ Moisture condition generally moist. <br />■ Encountered below the topsoil in most of the borings. <br />■ Alluvium varied and extended to depths from about 7 to <br />greater than 14 1/2 feet below grade. <br />Alluvium <br />SP-SM SM <br />2 to 15 blows <br />0 Mostly silty sand and sand with lesser amounts of lean <br />CL, CH <br />per foot (BPF) <br />clay and fat clay. <br />■ Brown, dark brown, and gray in color. <br />■ Moisture condition generally moist to wet. <br />■ Encounter below the topsoil and/or alluvium at Borings <br />ST-5, ST-7, ST-9, ST-10 through ST-12, ST-15, and ST-16. <br />Glacial Till <br />CL, SC, SM, <br />4 to 17 BPF <br />Generally clayey sand and sandy lean clay with lesser <br />SP-SM <br />amounts of sand and silty sand. <br />■ Brown and gray in color. <br />■ Moisture condition generally moist to wet. <br />*Abbreviations defined in the attached Descriptive Terminology sheet. <br />B.3. Groundwater <br />Table 6 summarizes the depths where we observed groundwater; the attached Log of Boring sheets in <br />the Appendix also include this information and additional details. <br />Table 6. Groundwater Summary <br />Location <br />Measured Surface <br />Elevation <br />(feet) <br />Measured Depth to <br />Groundwater <br />(feet) <br />Corresponding <br />Groundwater Elevation <br />(feet) <br />ST-3 <br />905.4 <br />9 <br />896 1/2 <br />ST-4 <br />917.5 <br />6 <br />911 1/2 <br />ST-5 <br />905.8 <br />9 1/2 <br />895 1/2 <br />ST-6 <br />915.2 <br />7 <br />908 <br />ST-7 <br />920.9 <br />2 <br />919 <br />ST-8 <br />923.8 <br />5 <br />918 1/2 <br />ST-9 <br />903.9 <br />9 <br />895 <br />BRAUN <br />INTERTEC <br />