Pennsylvania Environmental Defense Foundation v. Commonwealth Terry R. Bossert is a principal in Post & Schell's environmental practice group, co-chair of the firm's shale resource practice group, and the former chief counsel for the Pennsylvania Department of Environmental Protection (DEP). He can be reached at [email protected]. Michael P. Canavan is an associate in the firm's environmental practice group, providing counsel related to environmental issues associated with real estate and corporate transactions, including environmental due diligence, contractual allocation of environmental risks and liabilities, and regulatory compliance, among others. He can be reached at [email protected].