Keith Casto

Contact Keith

Email: kcasto@cwclaw.comPhone: 415-433-1900vCard: download vCard

Keith Casto’s practice focuses on energy and environmental regulatory and transactional consultation, environmental and toxic tort litigation, white-collar environmental criminal defense, electronic data and cybersecurity. His energy and environmental law expertise stems from his 10 years of practice at the U.S. Environmental Protection Agency (EPA) at the Atlanta Regional Office and over 20 years in private practice in Northern California and Atlanta, Georgia. He is an expert in conventional and renewable energy projects, greenhouse gas emissions credit trading, green technology financing and renewable energy project development, and is an international speaker on these issues. His e-data and cybersecurity practice embraces both counseling and litigation. Mr. Casto has been included in the 2011, 2012, 2013, 2014 and 2015 editions of The Best Lawyers in America.

Mr. Casto’s practice encompasses both conventional and renewable energy project financing, entitlements and regulatory compliance. His environmental regulatory and litigation practice includes regulatory compliance counseling for all environmental media, due diligence investigation in real estate transactions and corporate mergers and acquisitions, domestic and international environmental audits, environmental management system consultation, civil litigation, including cost recovery for soil and ground water contamination under Superfund and various common law theories and toxic tort defense.  In addition, he represents industrial clients, real estate developers and individuals in defense of civil enforcement actions and criminal prosecutions at federal, state and local levels in California and throughout the United States.

Mr. Casto has practiced extensively before a number of energy and environmental agencies throughout California, the United States and Europe, including the EPA; the U.S. Department of Justice; the Federal Energy Regulatory Commission; the California Public Utilities Commission; the California Energy Commission; the Bay Area Air Quality Management District; the Regional Water Quality Control Boards; the U.S. Army  Corps of Engineers; the San Francisco Bay Conservation and Development Commission; the State Water Resources Control Board; the California Air Resources Board; the California Department of Toxic Substances Control; and numerous hazardous material management regulatory agencies and water districts.


Mr. Casto is a member of the State Bars of Florida, California and Georgia. He is also active in the Environmental Law Institute; the American Bar Association’s Section of Environment, Energy, and Resources Law and Section on International Law; the environmental law sections of the Florida, Georgia and California State Bars; the Bar Association of San Francisco; and the Santa Clara County Bar Association.


Mr. Casto is admitted to practice before the state courts of Florida, Georgia and California; the U.S. District Courts for the Middle, Northern, and Southern Districts of Florida, the Northern, Middle and Southern Districts of Georgia, and the Northern, Central and Southern Districts of California; and the U.S. Courts of Appeals for the Fifth, Eleventh and Ninth Circuits.


1973   J. D., Stetson University College of Law
1969   B. A., Stetson University

Community Involvement

Mr. Casto is on the Board of Directors of the Bay Area Council, the United Way of Silicon Valley Advisory Board and the President’s National Advisory Council of the United Church of Christ.