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Lino Lakes Red Maple Lane November 4, 2023 Project #: 22538.23.MNT Page - 2 ________________________________________________________________________________________________________ M I N N E S O T A IOWA W I S C O N S I N Design Phase Geotechnical Report Red Maple Lane Infrastructure Improvements Lino Lakes, Minnesota CVT Project Number: 22539.23.MNS Date: November 4, 2023 A. Introduction The intent of this report is to present our findings and describe the means used to collect the data. The data was collected for a specific purpose and may not be suitable for other purposes. We should be consulted before attempting to use the data for other uses. A complete and thorough review of the entire document, including its assumptions and its appendices, should be undertaken immediately upon receipt. A.1. Purpose This geotechnical report was prepared to assist planning for proposed infrastructure improvements of the subdivision of Red Maple Lane in Lino Lakes, Minnesota. Our services were authorized by Mr. Michael Grochala from The City of Lino Lakes. A.2. Scope To obtain data for analysis, a total of four (4) penetration test borings were performed. The borings were drilled to depths of about 9 ½ to 20 feet. Our engineering scope consisted of providing this report of our findings and including geotechnical recommendations for construction and design of potential utility replacements and paved areas. A.3. Boring Locations and Elevations The preferred boring locations were indicated to Chosen Valley Testing (CVT) on a site plan provided by the city. The Boring Location Sketch in the Appendix shows the approximate locations as drilled on aerial imagery using Google Earth software. Ground surface elevations were estimated using MnTOPO software from the Minnesota DNR and are indicated on the Log of Boring sheets in the Appendix. The elevations should be considered approximate. A.4. Geologic Background A geotechnical report is based on subsurface data collected for the specific structure or problem. Available geologic data from the region can help interpretation of the data and is briefly summarized in this section. Geologic maps indicate the soils in the area are dominated by glacial till deposits of sand to silty sand. Bedrock is commonly more than 50 feet below the surface and is not a consideration for this project. B. Subsurface Data The borings were performed using penetration test procedures (Method of Test D1586 of the American Society for Testing and Materials). This procedure allows for the extraction of intact soil specimen from deep in the ground. With this method, a hollow -stem auger is drilled to the desired sampling depth. A 2 -inch OD sampling tube is then screwed onto the end of a sampling rod, inserted through the hole in the auger's tip,