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iso <br />Sunwood Drive — Street Improvements <br />Ramsey, Minnesota <br />NTI Project No. 16.61770.100 <br />Table 1: Pavement and Subgrade Summary' <br />Sunwood Drive <br />Bituminous Apparent <br />Pavement Aggregate Base Fill Subgrade Native Subgrade <br />Boring No. Thickness2 (inches) Thickness3 (inches) Material4 Material <br />S-1 8.3 None SP-SM SP-SM <br />S-2 4.5 None SP-SM SP, SP-SM <br />S-3 4.5 None SP-SM SM, SP, SP-SM <br />S-4 4.5 None SP-SM SP-SM <br />S-5 4.8 None SP-SM SP-SM <br />S-6 4.8 None SP-SM SP-SM <br />S-7 4.3 None SP-SM SP, SP-SM <br />S-8 5.8 None SP-SM SP-SM <br />S-9 4.5 None SP-SM SP, SP-SM <br />S-10 5.0 None SP-SM SP, SP-SM <br />S-11 4.8 None SP-SM SP, SP-SM <br />1. Table summary is a generalization of subsurface conditions at the individual soil boring locations only. They may not <br />reflect variations in subsurface strata occurring on site between boring locations. The general geologic origin of <br />retained soil samples is listed on the boring logs. <br />2. Measured thickness of the pavement core. <br />3. Apparent aggregate base thickness, at time of our fieldwork, by visual inspection only and is not mean to confer <br />conformance with DOT specifications. <br />4. Undocumented fill soils. <br />GROUNDWATER AND GROUNDWATER CONTROL <br />Groundwater was observed in the boreholes at depths ranging from approximately 7.0 to 9.5 feet below <br />the top of pavement at the time of drilling. <br />Depending upon elevations of underground utilities, groundwater may be an issue during construction. <br />It should be noted that if excavations are proposed below the groundwater level, the granular nature of <br />the majority of the on -site soils will likely result in significant volumes of water entering the excavations <br />unless proper dewatering measures are implemented. Well points embedded into the underlying sands <br />will likely be the most suitable method for controlling excess water in deeper excavations. If dewatering <br />is needed during construction, we recommend that the groundwater be maintained a minimum of 2 <br />feet below the bottom of the excavation. <br />LABORATORY TEST PROGRAM <br />Our analysis and recommendations of this report are based upon our interpretation of the standard <br />penetration test resistance determined while sampling soils, laboratory test results and experience with <br />similar soils from other sites near the project. The results of such tests are summarized on the boring <br />logs or attached laboratory test reports. <br />Page 3 of 7 <br />