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City of Arden Hills <br />Project B2204011 <br />June 23, 2022 <br />Page 6 <br /> <br /> <br /> <br />Table 3 provides a summary of the soil boring results, in the general order we encountered the strata. <br />Please refer to the Log of Boring sheets in the Appendix for additional details. The Descriptive <br />Terminology sheet in the Appendix includes definitions of abbreviations used in Table 3. <br /> <br />Table 3. Subsurface Profile Summary <br />Strata <br />Soil Type - <br />ASTM <br />Classification <br />Range of <br />Penetration <br />Resistances Commentary and Details <br />Pavement <br />section --- --- ƒ See Table 2 above. <br />Fill SP-SM, SC, CL 4 to 12 BPF <br />ƒ Moisture condition was generally moist. <br />ƒ Extended to depths ranging from 4 to 6 feet <br />below existing grades at our boring locations. <br />ƒ Poorly-graded sand with silt (SP-SM) encountered <br />only at Borings ST-1, ST-3 and ST-7 (possible sand <br />subbase). <br />Glacial <br />Till SC, CL 3 to 18 BPF <br />ƒ Moisture condition generally moist. <br />ƒ Color was typically a brown and grayish clayey <br />sand and sandy lean clay. <br />ƒ Variable gravel content. <br /> <br /> <br />For simplicity in this report, we define fill to mean existing, uncontrolled or undocumented fill. <br /> <br />B.3. Groundwater <br /> <br />We did not observe groundwater while performing our borings. Groundwater may take days or longer to <br />reach equilibrium in the boreholes and we immediately backfilled the boreholes, in accordance with our <br />scope of work. If the project team identifies a need for more accurate determination of groundwater <br />depth, we can install piezometers. Project planning should anticipate seasonal and annual fluctuations of <br />groundwater. <br /> <br /> <br />