In-Situ TCE Oxiadtion Using Potassium Permanganate in the Columnar-Jointed Preakness Basalt of New Jersey

Approximately forty-five hundred (4,500) pounds of potassium permanganate (KMnO4) were injected into the Preakness Basalt as part of an In-Situ Chemical Oxidation (ISCO) pilot test at a large Research and Development facility in New Jersey (the "Site"). The objective of the pilot test was to determine if the ISCO technology was capable of remediating the source of a trichloroethene (TCE) plume in the Preakness Basalt, a fractured crystalline rock. The TCE source zone exhibited concentrations in groundwater ranging from 10 milligrams per liter (approaching approximately 1 percent of the solubillity of TCE in water) to about 500 milligrams per liter.