This Innovative Technology Evaluation Report documents the results of a demonstration of the hydrogen release compound (HRC) barrier technology developed by Regenesis Bioremediation Products, Inc., of San Clemente, California. HRC is a proprietary, food-quality glycerol polylactate ester that slowly releases lactic acid when injected into groundwater aquifers. The HRC enhances natural anaerobic degradation of organic contaminants in the groundwater. The technology was evaluated from February 2001 to October 2002 at the North of Basin F site at the Rocky Mountain Arsenal (RMA) in Commerce City, Colorado. The demonstration evaluated the technology's ability to treat groundwater containing contaminants generated during the processing of chemical warfare agents and during commercial production of pesticides.