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City of Arden Hills <br />Project B2204011 <br />June 23, 2022 <br />Page 3 <br /> <br /> <br /> <br />ƒ Performing 7 continuous power auger borings to nominal depths of 5 feet below existing <br />grades for the project, however, based on efficiencies in our drilling procedures with <br />concurrent projects, we were able to complete the borings as standard penetration test <br />(SPT) borings, denoted as ST-1 to ST-7. Performing 15 pavement cores with shallow hand <br />auger borings, denoted as C-1 to C-15. <br /> <br />ƒ Preparing this report containing a boring location sketch, logs of soil borings, a summary of <br />the soils encountered, results of laboratory tests, pavement core measurements and photo <br />log, and recommendations for utility and pavement subgrade preparation and the design of <br />utilities and pavements. <br /> <br />Our scope of services did not include environmental services or testing and our geotechnical personnel <br />performing this evaluation are not trained to provide environmental services or testing. We can provide <br />environmental services or testing at your request. <br /> <br /> <br />B. Results <br /> <br />B.1. Geologic Overview <br /> <br />A review of the Minnesota Metropolitan Area Geologic Atlas indicates the project area is generally <br />underlain by intermixed loam to sandy-loam textured unsorted sediment associated with the Twin Cities <br />Member (Map Unit “Qnd”) and glacial till soils that have deposits that form hummocky, irregular <br />topography (Map Unit “Qnh”). <br /> <br />