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� � 1• 1• 1• � 1• >•� � � � A � 1� � � � i• <br /> i • _ i <br /> TABLE 1 _ <br /> HYDROGEOLOGIC UNITS (HUs) CONVERSION CHART <br /> LARRY'S AUTO <br /> 308 North Grant Street, Stockton, California <br /> (µg11) <br /> Previous HUs <br /> Present HU Included in HU Soil Description <br /> Present HU i <br /> HU1 HU 1 Clay,silt,silty clay and clayey silt,with generally minor,discontinuous lenses of silty sand,sandy silt,and sand Unit characterized by moderate <br /> or fluctuating(between low to moderate with depth)pore pressures <br /> HU2 HU2 Sand,silty sand,sandy silt,gravelly sand and cemented sands,with lesser occurrences of clay,silty clay or clayey silt intervals Pore pressures <br /> HU3 generally are low This unit may be considered a flow unit <br /> HU3 <br /> HU4 Clay,silt,silty clay and clayey silt,with generally minor,discontinuous lenses of silty sand,sandy silt,and sand Unit characterized by moderate <br /> HU3 HU5 or fluctuating(between low to moderate with depth)pore pressures <br /> HU6 <br /> HU8 <br /> HU7 Sand,silty sand,sandy silt,gravelly sand and cemented sands,with lesser occurrences of clay,silty clay or clayey silt intervals Pore pressures <br /> HU4 HU9 <br /> HU 11 generally are low This unit may be considered a flow unit <br /> HUS HU 10 Clay,silt,silty clay and clayey silt,with generally minor,discontinuous lenses of silty sand,sandy silt,and sand Unit characterized by moderate <br /> HU 12 or fluctuating(between low to moderate with depth)pore pressures <br /> HU13 Sand,silty sand,sandy silt,gravelly sand and cemented sands,with lesser occurrences of clay,silty clay or clayey silt intervals Pore pressures <br /> HU6 HU 14 generally are low This unit may be considered a flow unit <br /> Notes <br /> Present HUs based on December 2004-January 2005 CPT investigation <br /> Previous HUs based on November 2001 CPT investigation <br /> Advanced GeoEuvironmental,Inc <br /> I <br />