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City of Ramsey Project B1700969 March XX, 2017 Page 3 DRAFT B.3. Published Geologic Information B.3.a. Top..1„ According to the United States Geological Survey (U.S.G.S) 7.5-minute topographic map series, Anoka, Minnesota quadrangle, the Site is located at an elevation of approximately 865 feet above mean sea level. The topography of the Site is relatively level with a slight downward slope to the south. B.3.b. Geology The unconsolidated sediments in the Site vicinity are Quaternary Wisconsin Episode Langdon Terrace deposits, which consist of sand and gravelly sand (Meyer, 2012). The uppermost bedrock unit in the Site vicinity is the Upper Cambrian St. Lawrence Formation (Mossier, 2012). The St. Lawrence Formation is described as light gray to yellowish -gray and pale yellowish -green, dolomitic, feldspathic siltstone with interbedded very fine-grained sandstone and shale. The depth to bedrock in the Site vicinity is approximately 150 feet to 200 feet below land surface (Mossier, 2012). B.3.c. Hydrogeology Based on the findings of this Phase II ESA, groundwater is present under the Site at depths of approximately 20 to 28 feet below land surface. According to published geologic information, the regional groundwater flow direction within the unconsolidated deposits in the Site vicinity is generally south-southwest, towards the Mississippi River (Palen et al., 1993). The Site -specific groundwater flow direction was not determined through direct measurement during this Phase II ESA. C. Scope of Services The following tasks were conducted at the Site as part of this Phase II ESA: ■ Cleared public utilities through Gopher State One Call and private utilities through a private contractor for the investigation locations. ■ Advanced 9 environmental soil borings (S-1 through S-9) and collected soil samples. BRAUN INTERTEC