Professional Biography
Chris Thomas

Christopher D. Thomas Partner

  • Phoenix

    D +1.602.351.8045

    F +1.602.648.7000

    Phoenix

    2525 E. Camelback Road, Suite 500

    Phoenix, AZ 85016-4227

    +1.602.351.8045

    CThomas@perkinscoie.com

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Overview

Environmental and natural resource lawyer Christopher Thomas has advised industrial and municipal clients across the country on litigated and nonlitigated issues for more than 35 years. He focuses on complex infrastructure permitting, natural resource and hazardous substance litigation, enforcement defense, and site remediation.

Chris’ regulatory work has included obtaining necessary state and federal approvals for clients in the mining, manufacturing, renewable energy, and technology sectors. He has advised clients on remediation of impacted soil and sediment, groundwater, surface water, and indoor air at dozens of sites nationwide. His federal and state litigation practice has included trial-level and appellate cases throughout the country.

Chris is an elected fellow of the American College of Environmental Lawyers, a frequent (and occasionally engaging) writer and speaker on environmental and natural resource law topics, and an enthusiastic supporter of Arizona nonprofits in the areas of disability and child welfare. Chris and has colleagues were named 2022 pro bono attorneys of the year by the U.S. District Court for the District of Arizona for their work on the Crago v. Pitz civil rights litigation.

Ranked by Chambers USA and Best Lawyers

Named “Litigation-Environmental Law Lawyer of the Year” by The Best Lawyers in America, 2023
Ranked by Chambers USA for 19 years

Professional Recognition

  • Listed in Lawdragon 500,“Leading U.S. Environmental Lawyers,” 2023-2024 
  • Ranked by Chambers USA in Environmental Law (Band 1), 2005-2023
  • Listed in Best Lawyers in AmericaEnvironmental Law; Litigation - Environmental, 2007-2024 
  • Named Best Lawyers’ Phoenix “Litigation-Environmental Lawyer of the Year,” 2015, 2017, 2021, 2023
  • Named Best Lawyers “Environmental Law Lawyer of the Year,” 2016-2017
  • Ranked by Benchmark Litigation as a “Local Litigation Star”
  • Listed in The International Who’s Who of Environment Lawyers
  • Listed in Southwest Super Lawyers, 2007-2024

 

Professional Leadership

  • American College of Environmental Lawyers, Fellow

Community Involvement

  • Southwest Center for Human Development, Board Member
  • Gompers Habilitation Center, Board Member
  • The Nature Conservancy, Arizona Chapter, Former Board Member
  • Arizona Center for Disability Law, Former Board Member
  • Upward Foundation, Former Board Member

Experience

News

Insights

RELATED INFORMATION

Bar and Court Admissions

  • Arizona
  • Supreme Court of the United States
  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. Court of Appeals for the Tenth Circuit
  • U.S. District Court for the District of Arizona
  • U.S. District Court for the Northern District of California
  • Arizona Supreme Court

Education

  • The University of Iowa College of Law, J.D., with high distinction, 1985, Associate Editor, Iowa Law Review
  • Drake University, B.A., cum laude, 1982