ABC-Olé is used to promote anaerobic biodegradation of halogenated solvents in groundwater. ABC-Olé  is a mixture of glycerol, fatty acids, and a phosphate buffer.  

ABC-Olé  is used for in situ treatment of organic groundwater contaminants by enhanced anaerobic processes.  These types of contaminants include chlorinated solvents, some chlorinated aromatics, nitroaromatics, inorganics (nitrate and perchlorate), and metals (chromium).