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City of Ramsey <br />Project B1705491 <br />April 4, 2018 <br />Page 6 <br />Table 4. Groundwater Observation Summary <br />Boring <br />Surface Elevation <br />(ft)* <br />Observed Groundwater Depth <br />(ft) <br />Corresponding Groundwater <br />Elevation <br />(ft) <br />ST-C3 <br />882 <br />7 <br />875 <br />ST-C4 <br />883 <br />9 <br />874 <br />ST-C10 <br />889 <br />8 1/2 <br />880 1/2 <br />*Rounded to nearest 1/2-foot. <br />The groundwater elevation was approximately between 874 and 880 1/2 feet. Seasonal and annual <br />fluctuations of groundwater should be anticipated. <br />B.3. Laboratory Test Results <br />Laboratory test results, including moisture content, organic content, and mechanical analysis (#200 sieve <br />only) tests, are summarized in Table 5. The moisture contents of the sandy fill and native soils were around <br />3 to 15 percent, indicating the materials ranged from below to above their optimum moisture contents for <br />compaction. The higher moisture contents of noted clayey soils, ranging from 15 to 37 percent, are likely <br />near or above their optimum moisture contents for compaction. <br />Table 5. Laboratory Testing Results <br />Borehole <br />Soil <br />Classification <br />Depth <br />%<#200 <br />Sieve <br />Water Content <br />(%) <br />Organic <br />Content <br />(%) <br />ST-C1 <br />SP-SM <br />5 <br />6 <br />4 <br />--- <br />ST-C3 <br />SP-SM <br />5 <br />--- <br />18 <br />- <br />ST-C7 <br />SP <br />7 1/2 <br />--- <br />8 <br />ST-C10 <br />SP-SM <br />5 <br />12 <br />10 <br />--- <br />ST-C 11 <br />SM <br />5 <br />--- <br />15 <br />2 <br />ST-C13 <br />SP-SM <br />21/2 <br />--- <br />9 <br />-- <br />ST-C14 <br />CL <br />2 1/2 <br />--- <br />15 <br />2 <br />ST-C14 <br />CL <br />5 <br />98 <br />37 <br />-- <br />BRAUN <br />INTERTEC <br />