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City of Ramsey <br />Project B1705491 <br />August 11, 2017 <br />Page 6 <br />B.2.c. Groundwater <br />Groundwater was observed during our drilling operations as shown in Table 4. <br />Table 4. Groundwater Observation Summary <br />Surface Elevation <br />Boring (ft)* <br />ST-C3 882 7 <br />ST-C4 883 9 <br />ST-C10 889 <br />*Rounded to nearest 1/2 foot. <br />8 1/2 <br />Observed Groundwater Depth Corresponding Groundwater Elevation <br />(ft) (ft) <br />875 <br />874 <br />880 1/2 <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 <br />around 3 to 15 percent, indicating the materials ranged from below to above their optimum moisture <br />contents for compaction. The higher moisture contents of noted clayey soils, ranging from 15 to <br />37 percent, are likely near or above their optimum moisture contents for compaction. <br />Table 5. Laboratory Testing Results <br />Borehole <br />ST-A2 <br />ST-A4 <br />ST-B4 <br />ST-C1 <br />ST-C3 <br />ST-C7 <br />ST-C10 <br />ST-C11 <br />ST-C13 <br />ST-C14 <br />ST-C14 <br />Soil I %<#200 Water Content Organic Content <br />Classification Depth Sieve (%) (%) <br />L <br />SP-SM <br />SP <br />SP-SM <br />2 1/2 9 8 <br />SP-SM <br />SP-SM <br />SP <br />SP-SM <br />SM <br />SP-SM <br />CL <br />CL <br />2 1/2 3 <br />2 1/2 6 4 <br />5 6 4 <br />5 18 <br />7 1/2 8 <br />5 12 10 <br />5 15 <br />2 1/2 9 <br />2 1/2 15 <br />5 98 37 <br />2 <br />2 <br />BRAUN <br />INIERItC <br />