Agenda - Council - 09/14/2021 - Laserfiche WebLink

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1.0 INTRODUCTION 1.1 Project Description The Excelsior Group is proposing Tamarack Land Development (Tamarack) is preparing for construction of the Trott Brook Property residential development located west of Nowthen Boulevard and north of Trott Brook in Ramsey, Minnesota. We understand the development will include preparing lots and house pads for about 270 single-family homes along with the associated streets(s), underground utilities and stormwater pond(s). 1.2 Purpose The Excelsior Group retained Haugo GeoTechnical Services, LLC (HGTS) to perform a geotechnical exploration to evaluate the suitability of site soil and groundwater conditions to support the anticipated residential structures, roadways and underground utilities and provide recommendation for foundation and pavement design and construction. 1.3 Site Description The project site is located west of Nowthen Boulevard and north of Trott Brook in Ramsey, Minnesota. The overall property is approximately 200 acres with delineated wetlands, dedicated parks and street Right of Ways accounting for about 73 acres yielding about 123 acres of developable land. Except for the wetlands, the majority of the site existed as agricultural lands with wooded areas. The site topography varied with the ground surface elevations at the soil boring locations ranging from about 875 to 903 feet above mean sea level (MSL). 1.4 Scope of Services Our services were performed in accordance with the Haugo GeoTechnical Services proposal 21-0429 dated April 8, 2021. Our scope of services was performed under the terms of our General Conditions and limited to the following tasks: • Completing twelve (12) standard penetration test soil borings and extending each to nominal depths of 20 feet. • Installing 3 piezometers and constructing them in accordance with Minnesota Department of Health (MDH) requirements. • Removing the piezometers and sealing the boreholes, upon completion of water level monitoring, in accordance with MDH requirements. • Obtaining GPS coordinates and ground surface elevations at the soil boring locations. • Visually/manually classifying samples recovered from the soil borings. • Performing laboratory tests on selected samples. • Preparing soil boring logs describing the materials encountered and the results of groundwater level measurements. • Preparing an engineering report describing current soil and groundwater conditions and providing recommendations for foundation design and construction. 1