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John W. Carroll

John W. Carroll

Fellow of The Pepper Center for Public Service

Harrisburg, PA
Phone: 717.255.1159    Fax: 717.238.0575

Harrisburg “Lawyer of the Year” for Environmental Law - Best Lawyers 2019 and 2015

"He goes above and beyond.” - Chambers USA 2018

John W. Carroll is a partner in the Harrisburg office of Pepper Hamilton LLP and former co-chair of the firm’s Environment and Energy Practice Group. He also is a Fellow of the Pepper Center for Public Service. Mr. Carroll joined Pepper in September 1987, after serving three years as chief counsel of the Pennsylvania Department of Environmental Resources (DER). His current environmental practice involves litigation, counseling, transactional representation and government relations.

Mr. Carroll began his legal career in 1972 as a special assistant attorney general with DER and served in a number of capacities with the agency during 15 years of government service, including the position of associate deputy secretary. As chief counsel of DER, he was responsible for overseeing a caseload of 1,100 active enforcement cases and a staff of 50 lawyers.

Mr. Carroll has served on the Legal Committee of the Interstate Oil Compact Commission, on the Teaching and Coal Program Committees of the Eastern Mineral Law Foundation and as a member of the Pennsylvania Environmental Hearing Board Rules Committee. He is a past co-chair of the Pennsylvania Bar Association’s Shale Energy Law Committee, and past chair of the association’s Environmental and Energy Law Section and the section’s Oil and Gas Committee.

He serves as an adjunct assistant professor of law at Penn State’s Dickinson School of Law for many years, where he previously taught courses in Natural Resources Law, Environmental Law, Environmental Compliance, Environmental Litigation and Toxic Torts. He currently teaches Energy Law and Policy and Environmental Law.  He has lectured at seminars sponsored by the American Bar Association, the Environmental Protection Agency, the National Association of Attorneys General, the American Bar Institute, the Environmental Law Institute, the Pennsylvania Bar Institute, the Pennsylvania Chamber of Business and Industry, the National Business Institute, Executive Enterprises and the Eastern Mineral Law Foundation on such topics as RCRA corrective action, HSCA (Pennsylvania Superfund), indoor air pollution, wetlands regulations, groundwater protection, the Clean Air Act Amendments (including Title V permitting and enforcement), Act 2 of 1995 (Pennsylvania’s Brownfields Program), SARA implementation, and oil and gas leasing, and pooling and unitization. He served as a representative of the National Association of Attorneys General on several EPA Superfund workgroups.

Mr. Carroll served as editor of “Pennsylvania Environmental Laws,” published in 1991 by the Pennsylvania Environmental Council, and as a contributing author to “Pennsylvania Environmental Law and Practice,” published in 1994 by the Pennsylvania Bar Institute, as well as subsequent editions including the 9th Edition of the text published in 2018. He served as co-author of “Pennsylvania Environmental Guide” (1997) and “Pennsylvania Air Permitting Guide” (2000), published by the Pennsylvania Chamber of Business and Industry Educational Foundation.

Mr. Carroll also authored the chapter “Environmental Issues Arising from Development of the Marcellus Shale” in Aspatore Special Report: Navigating Legal Issues Around the Marcellus Shale (2011 Thomson Reuters/Aspatore). Mr. Carroll served as a contributing author to PBI’s book, “The Law of Oil and Gas in Pennsylvania,” (chapter on Pooling and Unitization).


  • J.D., University of Pennsylvania Law School, 1972
  • B.A., Geology, University of Pennsylvania, 1969

Bar Admissions

  • New Jersey
  • Pennsylvania

Practice Areas

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