Lasagna: Field-tested recipe for soil cleanup.

Focuses on the results of field tests of an innovative method for treating contaminated clay soils. United States Department of Energy's plan to use the `Lasagna' technology to destroy trichloroethylene in the ground at one of its waste sites; Utilization of an electrical field between electrodes buried in the ground to drive contaminants toward buried treatment zones; Monsanto's plan to license the technology.