Ms. Maxwell is a shareholder in the environmental group of Greenberg Traurig, LLP. Her principal office is in Philadelphia. She focuses her practice on environmental litigation. Ms. Maxwell advises clients on regulatory compliance issues and represents clients in litigation in state and federal courts. Her work includes litigation of major contamination cases under the hazardous waste and Superfund laws. She also advises clients in transactions involving the sale of contaminated real property. Ms. Maxwell is admitted to practice in Pennsylvania and New Jersey as well as the U.S. Court of Appeals for the Seventh Circuit, U.S. District Court for the Eastern District of Wisconsin, U.S. District Court for the Western District of New York, and the U.S. District Court for the Eastern District of Pennsylvania. Prior to joining Greenberg Traurig, she served as a judicial law clerk to the Honorable Linda K. Caracappa in the U.S. District Court for the Eastern District of Pennsylvania. She received her J.D. from Boston University School of Law and her B.A., magna cum laude, with Departmental Honors in Law and Policy from Dickinson College. 

Mr. Klapkowski serves as the Deputy Secretary for the Office of Oil and Gas Management with the Pennsylvania Department of Environmental Protections Office of Oil and Gas Management. As the Deputy Secretary, he leads an organization responsible for the oversight of the oil and gas industry in the Commonwealth. The Office of Oil and Gas Management is comprised of two Bureaus – the Bureau of District Oil and Gas Operations, which is responsible for permitting, inspection, compliance and oversight of the conventional oil and gas and unconventional gas industry, and the Bureau of Oil and Gas Planning and Program Management, which is responsible for the Department’s development of policy, regulatory, technical guidance and legislative documents, and data management systems, as well as providing on-going education and outreach to the public and regulated communities. Prior to becoming the Deputy Secretary, Mr. Klapkowski served as the Director of the Bureau of Oil and Gas Planning and Program Management for a decade. Before joining the Office of Oil and Gas Management in 2012, Mr. Klapkowski worked with the Department’s Bureau of Regulatory Counsel for more than 18 years, including service as the counsel to the Oil and Gas Program for four years. Other program clients included Pennsylvania’s Storage Tank program, the Land Recycling Program (brownfields/remediation), the Office of Energy and Technology Deployment, the Division of Hazardous Waste Management, the Division of Nuclear Safety and the Office of Pollution Prevention and Compliance Assistance. He received his J.D. in 1993 from the University of Pittsburgh School of Law and graduated Magna Cum Laude from Washington and Jefferson College in 1990.

Mr. Wolford maintains a solo practice, Wolford Law, in Erie. Before going into private practice, he served as Regional Counsel and as an Assistant Counsel for the Pennsylvania Department of Environmental Protection (DEP), Northwest Region. Before joining the DEP, Mr. Wolford served as a prosecutor for the Office of Attorney General (OAG), Environmental Crimes Section and also as a civil litigation attorney for the OAG’s Torts Litigation Section. He was also a special prosecutor of environmental crimes for both the OAG and the United States Attorney for the Western District of Pennsylvania. Mr. Wolford is currently a member of the Pennsylvania Environmental Hearing Board Rules Committee and the State Water Plan Statewide and Great Lakes Committees. He is also a member of the Pennsylvania Bar Association’s Environmental and Energy Law Section, a Past Chair of the Section Council, the current Chair of the Section’s Programs and Publications Committee, and previously served as a contributing feature editor for the Section’s newsletter. He has lectured for the Pennsylvania Bar Institute, the United States Environmental Protection Agency (National Enforcement Training Institute), the DEP, the Erie County Bar Association, Pennsylvania’s minor judiciary, and various other organizations.  Mr. Wolford received his undergraduate degree from the Pennsylvania State University and his J.D. from the Temple University School of Law, and is a member of the Erie County and Pennsylvania Bar Associations.

Mr. Mandelbaum is a shareholder in Greenberg Traurig’s Environmental Practice. His principal offices are in Philadelphia and Boston. His practice tends toward environmental litigation of various sorts, including some Superfund matters that the government characterizes as among its most significant. He also advises on compliance, regulatory and transactional issues. He served as Vice-Chair of the Pennsylvania Statewide Water Resources Committee and as a member of the Delaware Valley Regional Planning Commission. Mr. Mandelbaum teaches “Superfund Litigation” and “Oil and Gas Law” in rotation at Temple Law School and the Superfund course at Suffolk (Boston) Law School. He was educated at Harvard University (A.B. 1980; J.D. 1983) and served as law clerk to Hon. Louis H. Pollak, then-United States District Judge for the Eastern District of Pennsylvania. He is a Fellow of the American College of Environmental Lawyers.

Mr. Garber is a shareholder in the Environmental, Energy and Natural Resources Group of Babst Calland Clements & Zomnir, P.C. in Pittsburgh. He concentrates much of his practice on environmental, water, and land use issues facing the oil and gas, mining, and manufacturing industries, and on infrastructure development issues facing municipalities, municipal authorities, and developers. He represents exploration, development, and pipeline companies working in the Pennsylvania conventional and unconventional oil and gas industries, and represents companies and trade associations in other extractive industries in Pennsylvania, including coal and noncoal mining. Mr. Garber has written and lectured extensively on oil and gas, water, and development issues. He is ranked among Pennsylvania’s top environmental lawyers in Chambers USA: Americas Leading Lawyers for Business. He is listed in the environmental section, the water section, the natural resources section, the environmental litigation section, and the energy section of the Best Lawyers in America, and was selected as its Lawyer of the Year for Pittsburgh each year between 2014 to 2021 and again in 2024 for energy, environmental, or natural resources law, and was named to the 2023 Energy & Environment Power 100 by City & State Pennsylvania. He is recognized as one of Pennsylvania’s Super Lawyers, according to an annual survey published in Philadelphia Magazine. He has served on the council of the Pennsylvania Bar Association’s Environmental, Mineral and Natural Resources Law Section. Mr. Garber is a member and past chair of the Allegheny County Bar Association Environmental Law Section and is a member of the Pennsylvania and American Bar Associations. He is a member of the board of directors of the Greater Pittsburgh Chamber of Commerce and the 3 Rivers Wet Weather Program, and is a former member and past chair of the board of the Allegheny Land Trust in Pittsburgh. Mr. Garber received his B.S. in biology from Pennsylvania State University, his M.S. in oceanography and limnology from the University of Wisconsin, his Ph.D. in ecology from the University of Pittsburgh, and his J.D. from Duquesne University School of Law. He is an adjunct professor at Duquesne University School of Law, where he teaches courses in environmental law and litigation.

John Herman is the Regional Chief Counsel for the Department of Environmental Protection’s Southwest Office of Chief Counsel in Pittsburgh.  The office includes a staff of 15 attorneys, and represents all of DEP’s environmental programs, including Air, Water, Waste, Drinking Water, Wetlands & Waterways, Mining, Radiation and Oil & Gas.  Mr. Herman is a 1982 graduate of the Washington University School of Law in St. Louis, and worked in private practice for ten years prior to joining the Commonwealth’s Office of General Counsel and DEP.

Ms. McCabe is the managing partner of Manko, Gold, Katcher & Fox LLP, working in the firm’s complex industrial and regulatory practices.  She counsels clients on a wide variety of environmental issues, including permitting, compliance and enforcement matters related to air emissions, hazardous waste, storage tanks, stormwater and wastewater pretreatment.  Ms. McCabe concentrates her practice in air matters for a wide range of industrial clients at both the state and national level. She has assisted clients with environmental due diligence, auditing, permit appeals, emergency planning, and defense of agency enforcement actions. Ms. McCabe has represented clients before the Pennsylvania Environmental Hearing Board, the New Jersey Office of Administrative Law, the U.S. Environmental Protection Agency (“EPA”) Environmental Appeals Board, and the District of Columbia Circuit Court of Appeals. She has been recognized in The Best Lawyers® in America, Pennsylvania Super Lawyers, New Jersey Super Lawyers and Chambers USA – America’s Leading Lawyers for Business. Outside of the office, Ms. McCabe serves as Chair of the Board of Directors of the Pennsylvania Environmental Council, among other volunteer roles in the community.  

Mr. Sullivan is a Supervisory Counsel in PA DEP’s Southcentral Regional Office. In this role, he supervises attorneys and counsels the Waterways and Wetlands program, the Chesapeake Bay program, and the State Conservation Commission. His practice generally focuses on enforcement, litigation, and permitting matters related to pipelines, agriculture, and other water-related environmental issues.  He recently served for a year and a half as the Acting Deputy Chief Counsel for PA DEP’s Office of Chief Counsel. He also previously worked in PA DEP’s Bureau of Regulatory Counsel.  Mr. Sullivan received B.S. degrees in Biology and Psychology from The Pennsylvania State University at University Park as well as a J.D. and a Certificate in Environmental Law, Science & Policy from the University of Pittsburgh School of Law.

Mr. Heilman is currently Litigation Coordinator for the Department of Environmental Protection, Office of Chief Counsel. Since joining the Office of Chief Counsel in 1987, Mr. Heilman has primarily practiced in the areas of mining, air quality and oil and gas. He received a B.S. in Civil Engineering from the University of Notre Dame du Lac in 1980, a J.D. from Duquesne University School of Law in 1985, and Masters of Engineering degree in Environmental Pollution Control from Penn State (Harrisburg) in 1998. He is also licensed as a Professional Engineer in Pennsylvania. Prior to joining the Office of Chief Counsel, Mr. Heilman clerked for the Honorable William D. Hutchinson then of the Pennsylvania Supreme Court (1985‐87) and worked for the Westinghouse Electric Corporation (1980 ‐ 85). Mr. Heilman has received the Governor’s Award for Excellence (2018), the DEP Secretary’s Award for Excellence (1999) the DEP Secretary’s Award for Dedication (2018).

Mr. Holmes is a Shareholder in the Environmental Practice Group in Greenberg Traurig’s Philadelphia office, where he concentrates his practice on environmental litigation, including CERCLA, RCRA, the Clean Air Act, the Clean Water Act and Oil and Gas. He is admitted to practice in Pennsylvania, as well as the U.S. Court of Appeals for the Seventh Circuit, the U.S. District Court for the Eastern District of Pennsylvania, the U.S. District Court for the Middle District of Pennsylvania, and the U.S. District Court for the Eastern District of Wisconsin. Mr. Holmes has been named a Rising Star in Pennsylvania Super Lawyers. Mr. Holmes is a 2007 graduate of Vermont Law School, where he earned a Juris Doctor, cum laude, and a Masters of Studies in Environmental Law, magna cum laude. He served as Notes Editor on the Vermont Law Review and was a member of the National Moot Court Team.

Ms. Murphy is a senior attorney in the Office of Chief Counsel for the Pennsylvania PA DEP (PADEP). She is the agency’s lead on issues related to Article I, Section 27 of the Pennsylvania Constitution – the “Environmental Rights Amendment” – working with the PADEP Central Office Programs, Regional Litigation Offices and Bureau of Regulatory Counsel on the agency’s implementation of its trustee obligations under the amendment. She is the author of the revised and updated Article I, Section 27 Chapter of the Pennsylvania Environmental Law and Practice, 10th Edition, published in February 2021. Ms. Murphy also helps to coordinate DEP’s appellate litigation practice, counsels the Regional Permit Coordination Office and Submerged Lands program, provides support on pipeline litigation matters, periodically represents PADEP in litigation matters at both the trial and appellate levels, and works with counsel and staff from other state and federal agencies. Prior to her current assignment, Ms. Murphy was a supervising attorney with PADEP’s Bureau of Regulatory Counsel where, in addition to her supervisory responsibilities, she primarily counseled the Stormwater, Erosion Control, and Submerged Lands programs. She worked closely with PADEP staff from 2002 through 2019 on the development and implementation of the Commonwealth’s current stormwater regulatory programs, including the 2010 “Chapter 102” regulatory revisions. Ms. Murphy has been a regular speaker on a variety of environmental law subjects since 1994. Ms. Murphy started her career in PADEP’s Northeast Region litigation office concentrating on the waste and remediation programs, and then worked for six years with PADEP’s Southeast Region litigation office, also focusing on the waste and remediation programs, before moving to Harrisburg. She received her B.A. with honors from Boston College in history and her J.D. from Villanova University School of Law.

Mr. Moorhead serves as the Deputy Chief Counsel for Regional Offices in the Office of Chief Counsel for the Pennsylvania Department of Environmental Protection. He has worked for the Office of Chief Counsel in Meadville for 21 years litigating and counseling for various Department programs in the areas of Waste, Air Quality, HSCA, Storage Tanks, Environmental Cleanup and Oil and Gas. He has also served the Pennsylvania Office of General Counsel as a mediator in its alternative dispute resolution program. In addition to his work for the Commonwealth, he has been an adjunct professor at Thiel College and Mercyhurst University, teaching environmental law to undergraduates. Prior to joining the Office of Chief Counsel, he spent six years in private practice, first in Annapolis, Maryland and then in Meadville, Pennsylvania. He is a graduate of the University of Maryland School of Law and licensed to practice in Maryland and Pennsylvania.

Ms. Herb is an Assistant Counsel in the Department of Environmental Protection, North Central Region, Office of Chief Counsel. Since joining the Office of Chief Counsel in 1994, Ms. Herb has primarily practiced in the areas of air quality and water quality, including point and non-point source matters. Ms. Herb received her B.A. cum laude and Certificate in Environmental Studies from Dickinson College, and her J.D. and Masters of Studies in Environmental Law magna cum laude from Vermont Law School.

Sharon is an Assistant Counsel in the Department of Environmental Protection, Southwest Region, Office of Chief Counsel. Since joining the Office of Chief Counsel in 2023, Sharon primarily practices in the areas of Oil and Gas and Waste. Prior to joining the Office of Chief Counsel, she practiced insurance defense litigation for over a decade, including medical malpractice, financial services, and personal injury litigation. Sharon received her B.A. in Human Service Studies from Elon University and her J.D. from Duquesne University Law School.