At localized areas within the site, a 5-10 foot thick layer of stiff to hard
plastic clay (CH) was. found situated between the layer of loose to medium ...
www.files.dnr.state.mn.us/input/environmentalreview/UPMBlan...

underlain by a very hard plastic clay of at least 22 m. The. water table was
observed in an open well to be at a depth. of 4.9 m. ...
www.ieeexplore.ieee.org/iel3/5136/13957/00645211.pdf?arnumb...