Bar & Court Admissions

  • Pennsylvania
  • New Jersey
  • New York
  • U.S. Court of Appeals for the Third Circuit
  • U.S. District Court for the District of New Jersey
  • U.S. District Court for the Eastern District of Pennsylvania
  • U.S. Supreme Court


University of Pennsylvania School of Law, J.D., cum laude, 2003

    • Senior Editor, Law Review
    • Arthur Littleton and H. Clayton Louderback Legal Writing Instructor

Villanova University, B.A. (Political Science), cum laude

    • Honors Program
    • Pi Sigma Alpha – National Political Science Honor Society, 2000
    • Varsity Rowing Team

MGKF Hiring Partner, 2014-2017

MGKF Summer Associate Program

  • Chair, 2009-2013

Drexel University Thomas R. Kline School of Law

  • Adjunct Professor of Toxic Tort Litigation (2009-2018)


  • Toxic Torts Committee

American Bar Association

ABA SEER, Superfund, and NRD Litigation Committee

  • Newsletter Co-Chair

Ss. Colman-John Neumann Home and School Association

  • President

Society of Women Environmental Professionals of Greater Philadelphia

Youth girls' basketball coach

Professional Highlights

“In complex litigation, smart lawyering, not over-lawyering, is the key to success.”

Kate Campbell is a litigation partner at the firm, where she focuses her practice on environmental, toxic tort and class action litigation and Superfund and RCRA remediation matters.  Since joining the firm in 2003, she has developed considerable experience in representing potentially responsible parties across the country in CERCLA and RCRA matters, in defending complex toxic tort claims for personal injury, wrongful death, medical monitoring and property damage, and in litigating federal, state and private enforcement actions under an array of environmental statutes.

In addition to her litigation and remediation practice, Kate has also been involved for many years in activities involving Total Maximum Daily Loads (“TMDLs”) for toxic pollutants, advocating on behalf of individual clients and a regional coalition of industrial and municipal dischargers. Through this work, she has been able to develop a detailed understanding of the nuances of the Clean Water Act and the TMDL regulatory program, and the contours of TMDL litigation at the federal and state levels.

Kate served as the firm's Hiring Partner for three years after chairing its Summer Associate Program for five years. Outside of the office, she teaches Toxic Tort Litigation as an adjunct professor at Drexel University Thomas R. Kline School of Law and is President of the Home & School Board at her children’s school, Ss. Colman-John Neumann School in Bryn Mawr, PA. 

In her free time, Kate enjoys staying physically active, coaching youth basketball, and spending time with her husband and three children, especially at the Jersey shore.

Kate’s representation of potentially responsible parties at Superfund and RCRA corrective action sites span more than a dozen states across the country. In addition, she has represented industrial, commercial and municipal entities, as well as closely held companies, in a variety of complex environmental litigation matters including the following:

  • defense of a specialty metals manufacturer as appellate counsel in a CERCLA private cost recovery action, resulting in the U.S. Court of Appeals for the Third Circuit vacating a $13 million verdict entered in favor of the plaintiffs by the trial court (Agere Systems, Inc. v. Advanced Environmental Technology Corp., 602 F.3d 204 (3d Cir. 2010));
  • defense of a specialty chemicals company in a CERCLA cost recovery action brought by the U.S. Environmental Protection Agency, resulting in the dismissal of the federal government’s claims with prejudice (United States v. Rohm and Haas, 2010 U.S. Dist. LEXIS 99585 (D.N.J. Sept. 22, 2010)); 
  • defense of a Fortune 500 company in a federal action brought by over 120 plaintiffs seeking restoration and other damages in excess of $35 million associated with historic releases from a crude oil storage and transportation facility;
  • defense of a former specialty metals manufacturer in a federal action seeking damages in excess of $15 million for alleged property damage and diminution in property value from airborne emissions associated with manufacturing activities;
  • defense of a Fortune 500 company in a cost recovery claim based on successor liability theories, resulting in the voluntary dismissal of all claims;
  • defense of multiple class actions filed in state and federal court seeking medical monitoring from exposure to airborne emissions from manufacturing activities;
  • defense of an operator of a landfill against a class action filed in state court seeking damages for nuisance and diminution of property value as a result of landfill operations;
  • defense of a public utility against a class action filed in state court seeking environmental testing, remediation, and medical monitoring of over 12,000 residences for an alleged "threatened release" of mercury during the removal of gas pressure regulators; 
  • defense of a national telecommunications company in cost-recovery litigation under the Comprehensive Environmental Response, Compensation and Liability Act (“CERCLA”) and the New Jersey Spill Act with approximately $175 million in alleged past and future costs;
  • representation of a national retail pharmacy chain in a cost recovery action to recover in excess of $1 million in investigation and remedial costs associated with leaking underground storage tanks;
  • defense of a national railroad in a $9 million civil penalty action arising out of a derailment and resulting release of sodium hydroxide into soil, surface water, and groundwater;
  • representation of a school district in a private cost-recovery litigation in connection with an oil spill at an elementary school, resulting in investigation and remediation costs in excess of $1 million; and
  • representation of an electric and gas utility company in a federal citizen suit under the Clean Air Act.

Honors & Awards

  • Chambers USA - America's Leading Lawyers for Business listing (environmental law), 2020. The Chambers list is issued by Chambers and Partners. Click here to view the selection methodology.
  • The Best Lawyers® in America listing (environmental litigation), 2020-2021. The Best Lawyers list is issued by Woodward/White Inc. Click here to view the selection methodology.

    The Legal Intelligencer "2017 Lawyers on the Fast Track" listing.  Click here to view the selection methodology.

    Pennsylvania Super Lawyers
    since 2020 and “Rising Star” listings (environmental litigation),  2010-2019. The Super Lawyers list is issued by Thomson Reuters. Click here to view the selection methodology.

    Main Line Today "Top Lawyer" Listing (Environmental Law), since 2014
  • No aspect of this advertisement has been approved by the Supreme Court of New Jersey or any other jurisdiction.

Press Releases

Seminars & Speaking Engagements

"Briefings on the Environmental Initiatives of the Biden Administration” a webinar presented by MGKF, March 24, 2021

“Supreme Court Year in Review 2019-20: The Environmental Cases,” presented at the American Bar Association’s Constitutional Law Committee’s webinar,  September 25, 2020 

"Superfund Task Force Report: Two Years Later, the PRP Perspective,” presented at the American Bar Association’s Section of Environment, Energy and Resources (ABA SEER) Fall Meeting, Boston, MA, September 12, 2019

"Combating Creative Legal Theories," presented at the Association of Corporate Counsel's In-house Counsel Conference in Philadelphia, PA, April 24, 2019

"Roadmap to Pennsylvania's New Vapor Intrusion Guidance" presented by MGKF and GHD in King of Prussia, PA, February 1, 2017

"Sediment and PRP Summit" presented by EHS Support, September 22, 2016

“Vapor Intrusion from Regulatory, Technical, and Legal Perspectives” webinar sponsored by the American Bar Association, June 7, 2016. 

“Environmental Enforcement Actions in Pennsylvania” a three-city series sponsored by the Philadelphia Bar Institute, November 9 (Mechanicsburg, PA); November 20 (Philadelphia) and November 23, 2015 (Pittsburgh).  

"The Migrating Impact of Vapor Intrusion," a teleconference presented by the American Bar Association’s Section of Environment, Energy and Resources (ABA SEER), Superfund and Natural Resources Damages Litigation Committee and Environmental Litigation and Toxic Torts Committee, April 27, 2015

"Medical Monitoring & Toxic Tort Claims: Preparing for the Future in a Post-Dukes Environment," teleseminar presented for the American Law Institute-American Bar Association (ALI-ABA), December 8, 2012

"CERCLA Private Cost Recovery: How Courts are Directing Traffic Five Years after Atlantic Research," teleseminar presented for the American Law Institute-American Bar Association (ALI-ABA), April 4, 2012

"Environmental Issues That Can Impact Any Business - What Every In-House Counsel Should Know", presented at the Delaware Valley Chapter of the Association of Corporate Counsel's (DELVACCA) In-House Counsel Conference, Philadelphia, PA, April 7, 2011

Media Coverage

Special Alerts