Chris S. Leason

Chris S. Leason

Phoenix, AZ recognized lawyers icon Recognized in Best Lawyers since 2024
Gallagher & Kennedy PA

44 Best Lawyers awards

Gallagher & Kennedy PA logo

Awarded Practice Areas

Administrative / Regulatory Law Environmental Law Litigation - Environmental Natural Resources Law

Biography

For nearly 30 years, Chris has focused his practice on high-profile civil and criminal environmental investigations and enforcement actions throughout the United States. A nationally-recognized Resource Conservation and Recovery Act (RCRA) practitioner, Chris represents national trade associations, oil and gas companies, manufacturers, and mine operators on issues involving the identification and management of solid and hazardous wastes, financial assurance, corrective action, permitting, boiler and industrial furnace compliance, underground storage tank testing and removal, and land disposal restriction requirements.

Gallagher & Kennedy PA

44 Best Lawyers awards

Gallagher & Kennedy PA logo

Overview

  • The George Washington University, J.D., graduated 1993

  • District of Columbia, The District of Columbia Bar, 1994
  • Idaho, Idaho State Bar, 2022
  • Arizona, State Bar of Arizona, 2002

  • U.S. District Court, District of Arizona, 2017
  • U.S. Court of Appeals, Ninth Circuit, 2002
  • U.S. District Court, District of Columbia, 2001
  • U.S. Court of Appeals, District of Columbia, 1995
  • District of Columbia, The District of Columbia Bar, 1994
  • Idaho, Idaho State Bar, 2022
  • Arizona, State Bar of Arizona, 2002
  • The George Washington University, J.D., graduated 1993
  • U.S. District Court, District of Arizona, 2017
  • U.S. Court of Appeals, Ninth Circuit, 2002
  • U.S. District Court, District of Columbia, 2001
  • U.S. Court of Appeals, District of Columbia, 1995

Client Testimonials

I've worked with Chris Leason in my role as an Environmental Consultant serving multiple industrial clients and consider him to be one of the most capable and qualified environmental lawyers in Arizona. Chris brings exceptional skills to this work with his engineering background and depth of practical legal experience in superfund related environmental law. He is an incisive thinker with excellent communication skills that are invaluable as counsel to corporations and clients we have jointly served.

Dennis Shirley (Synergy Environmental)

Christopher Leason demonstrates unparalleled expertise in RCRA hazardous waste law and its application to complex chemical and processing industry processes and materials. He is one of the "go-to" lawyers in the country in this field.

William Farran (innophos Holdings, Inc.)

Cranbury, NJ

Awards & Focus

Recognized in The Best Lawyers in America® 2026 for work in:
  • Administrative / Regulatory Law
  • Environmental Law
  • Litigation - Environmental
  • Natural Resources Law

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