Denise G. Fellers focuses her practice on environmental law, with an emphasis on litigation relating to groundwater contamination, including cost recovery and mass toxic tort litigation. She has experience in litigation under a variety of state and federal environmental laws, such as the Resource Conservation and Recovery Act (RCRA), the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), and litigation under the state counterparts, such as the California Hazardous Substance Account Act (HSAA).