Patrick Larkin practices exclusively in environmental law, including regulatory compliance, litigation, administrative law, and environmental counseling in business transactions. Pat regularly represents industrial clients in air, water and waste permitting, compliance counseling and audits, voluntary site cleanups, government enforcement actions, and in agency rulemaking and associated stakeholder and guidance writing work groups. His 20 years of experience includes in-house, agency and private practice. He was in-house environmental counsel for a Fortune 100 company with over 300 U.S. and international operating sites and subsidiaries. Mr. Larkin was a Regional Enforcement Attorney with the U.S. Environmental Protection Agency. He has prosecuted and defended administrative and judicial enforcement actions brought under the Resource Conservation and Recovery Act, the Clean Air Act, the Clean Water Act, and the Toxic Substances Control Act.