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LOG OF EXPLORATION <br /> DEPTH(FEET) USC SOIL DESCRIPTION <br /> INFILTRATION PIT ONE <br /> 0.0-0.2 TOPSOIL <br /> 0.2-1.3 ML TAN-BROWN SILT AND FINE TO MEDIUM SAND WITH GRAVEL(LOOSE, DRY) <br /> 1.3-2.0 SM GRAY, SILTY FINE TO MEDIUM SAND WITH TRACE FINE GRAVEL AND IRON OXIDATION <br /> STAINING(MEDIUM DENSE, DRY-MOIST)(WEATHERED TILL) <br /> 2.0-3.3 SM GRAY,SILTY FINE TO MEDIUM SAND WITH TRACE GRAVEL(VERY DENSE,DRY) <br /> (GLACIAL TILL) <br /> NO SAMPLES WERE COLLECTED <br /> GROUNDWATER SEEPAGE WAS NOT ENCOUNTERED <br /> TEST PIT CAVING WAS NOT ENCOUNTERED <br /> INFILTRATION PIT WAS TERMINATED AT.3.3 FEET ON 9/15/2017 <br /> INFILTRATION PIT TWO <br /> 0.0-0.4 TOPSOIL <br /> 0.4-1.0 ML TAN-BROWN SILT AND FINE TO MEDIUM SAND WITH GRAVEL(LOOSE,DRY) <br /> 1.0-2.4 SM GRAY, SILTY FINE TO MEDIUM SAND WITH TRACE FINE GRAVEL AND IRON OXIDATION <br /> STAINING(MEDIUM DENSE,DRY-MOIST)(WEATHERED TILL) <br /> 2.4-3.4 SM GRAY,SILTY FINE TO MEDIUM SAND WITH TRACE GRAVEL(VERY DENSE,DRY) <br /> (GLACIAL TILL) <br /> NO SAMPLES WERE COLLECTED <br /> GROUNDWATER SEEPAGE WAS NOT ENCOUNTERED <br /> TEST PIT CAVING WAS NOT ENCOUNTERED <br /> INFILTRATION PIT WAS TERMINATED AT 3.4 FEET ON 9/15/2017 <br /> INFILTRATION PIT THREE <br /> 0.0-0.2 TOPSOIL <br /> 0.2-1.6 ML TAN-BROWN SILT AND FINE TO MEDIUM SAND WITH GRAVEL(LOOSE,DRY) <br /> 1.6-2.5 SM GRAY, SILTY FINE TO MEDIUM SAND WITH TRACE FINE GRAVEL AND IRON OXIDATION <br /> STAINING(MEDIUM DENSE, DRY-MOIST)(WEATHERED TILL) <br /> 2.5-3.5 SM DARK GRAY, SILTY FINE TO MEDIUM SAND WITH TRACE GRAVEL (VERY DENSE, DRY) <br /> (GLACIAL TILL) <br /> NO SAMPLES WERE COLLECTED <br /> GROUNDWATER SEEPAGE WAS NOT ENCOUNTERED <br /> TEST PIT CAVING WAS NOT ENCOUNTERED <br /> INFILTRATION PIT WAS TERMINATED AT 3.5 FEET ON 9/15/2017 <br /> CTC: NELSON GEOTECHNICAL ASSOCIATES, INC, <br /> FILE NO 1008917 <br /> FIGURE 6 <br />