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,IN <br /> .� KLEINFELDER <br /> ground water may be absorbed in the unsaturated sail of the capillary zone. <br /> Contamination indicated in the capillary zone may also be the result of an elevated ground <br /> -water surface. During the winter montes, contaminated ground water may have been <br /> present at a depth of 20 to 23 feet. <br /> With the exception.of Boring B-1,all of the borings were located 20 feet or more from the <br /> edges of the previous excavation. High petroleum hydrocarbon concentrations in the soil <br /> was not indicated from ..e radial Borings B-2, B-3, or B-5 above a depth of 21 feet. In <br /> Boring B-1, hydrocarbon odors were detected at a depth of 10 feet and high TPH and <br /> BTEX concentrations were detected at a depth of 20.5 feet, :c'3trole�lm hydrocarbon <br /> concentrations may be present in the shallow soil (10 to 20 feet) within 20 feet of the <br /> previous excavation edges. <br /> i <br /> i • ' <br /> I i <br /> t <br /> f <br /> i <br /> E _ <br /> is <br /> i <br /> i <br /> 188-89-960 <br /> i <br /> � l <br />