Katherine Riopel Suell    

Kate, an associate, concentrates on environmental regulatory, litigation, and transactional matters with a focus on the cleanup of contaminated properties and cost and liability allocations. She has experience with environmental issues affecting a wide range of industries, including pharmaceutical, real estate, cosmetics, asphalt and cement production, commercial chemical manufacturing, glass manufacturing, and petroleum distribution.

Kate negotiates stipulations, consent orders and decrees, and prepares all types of environmental agreements, including purchase/sale, cost allocation, environmental investigation, indemnification, and access agreements for the purpose of environmental investigations. She also has substantial experience representing clients’ interests as members of potentially responsible party (PRP) groups at complex remediation sites. Kate guides clients through site remediation and redevelopment projects throughout the country.

She works with numerous federal and state agencies, such as the New York State Department of Environmental Conservation, New Jersey Department of Environmental Protection, the Environmental Protection Agency, and the Army Corps of Engineers. Kate also advises on insurance issues, such as coverage for long-tail liabilities, including in asbestos matters.

In addition, Kate represents clients in cost recovery actions brought on behalf of the government and private parties. She counsels on legal strategies relating to federal and state statutes such as the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), the Resource Conservation and Recovery Act (RCRA), the Clean Air Act, the Clean Water Act, the Oil Pollution Act, the New Jersey Spill Compensation and Control Act, the New Jersey Industrial Site Recovery Act (ISRA), the New York Navigation Law and the New York Brownfield Cleanup Program. Kate also assists clients with PCB remediation, Toxic Substance Control Act (TSCA) compliance, and defense of New Jersey Department of Environmental Protection and New York State Department of Environmental Conservation enforcement actions.

Kate was selected for the Super Lawyers New Jersey Rising Stars List in 2015-2018 for environmental law*.

  • Environmental law
  • Commercial litigation
  • New Jersey, 2009
  • New York, 2010
  • U.S. District Court, District of New Jersey, 2013
  • Seton Hall University School of Law, J.D., 2009; Appellate Advocacy Moot Court Board Member; 2007 Interscholastic Negotiation Competition Winner; Gressman Moot Court Competition Quarterfinalist.
  • George Washington University, B.A., cum laude, American Studies, 2006; Dean’s List; National Society of Collegiate Scholars; Presidential Achievement Scholarship; Order of Omega.
  • Justice Stewart G. Pollock Environmental American Inn of Court, Barrister
  • New Jersey Society of Women Environmental Professionals, Scholarship Chair
  • New Jersey State Bar Association, Environmental Law Section
  • New York State Bar Association, Young Lawyers Section
  • New Jersey Women Lawyers Association, Young Lawyers Division
  • New Jersey Law Firm Mentoring Program, Mentor
  • Katherine Riopel Suell and David Mairo, “Natural Resource Damages,” in New Jersey Environmental Law Handbook, Eighth Edition, The Berman Press, (2014)
  • Hon. Walter Koprowski Jr., Superior Court, Chancery Division, General Equity and Probate Part, Newark, NJ, September 2009-September 2010

  Contact Katherine

Phone: 973.457.0271
Fax: 973.457.0269

*The Super Lawyers list is published by Thomson Reuters; its selection methodology is here.

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