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). H. KLEIN FELDER & ASSOCIATES <br /> File No. S-2568-4 <br /> November 11, 1983 <br /> Page 3 <br /> FIELD EXPLORATIONS �� <br /> The field explorations for this project were performed on November 1, 198 and <br /> consisted of the drilling and sampling of one four test borings to a depth of 8 feet <br /> below the existing ground surface. The borings were drilled with truck-mounted drill <br /> equipment using 6-inch diameter continuous-flight auger to extend them. Disturbed <br /> samples of the soils encountered were obtained for visual examination and <br /> classification. A continuous log of the soils encountered in the borings was <br /> maintained. <br /> SOIL CONDITIONS <br /> The surface soils encountered at the locations explored consist of dark grey-brown <br /> silty clay. These clay soils are medimum stiff and extend to depths of approximately <br /> 3 feet. The dark grey-brown silty clay soils are underlain by stiff tan silty clay with <br /> varied amounts of sand. These soils extend to the maximum depths explored of 8 feet <br /> below existing ground surface. <br /> Free groundwater was not encountered in any of the test borings drilled. <br /> However, it is possible that changes in groundwater conditions could occur at the site <br /> in the future due to variations in rainfall, groundwater withdrawal, construction <br /> activities, or other factors not apparent at the time our boring was drilled. <br /> The above is a general summary of the soil and groundwater conditions <br /> encountered in the exploratory boring drilled. More detailed descriptions of the soils <br /> encountered in the boring are noted on the Log of Boring, Plate III. All soils have <br /> been classified according to the Unified Soil Classification System, which is described <br /> on Plate II. <br /> PERCOLATION TESTS <br /> A total of thirteen percolation tests were performed. Each approximate 3-foot <br /> deep, 6-inch diameter test hole was lined with perforated Orangeburg pipe. The <br />