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Thomas Alan Bloomfield

Environmental and natural resources Attorney at Boulder, CO

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  • State Years
    Colorado - CO 19 years
    California - CA 30 years
  • Licensed for 19 years
    State CO
    Acquired 2003
    Active No misconduct found
  • Licensed for 30 years
    State CA
    Acquired 1993
    Active No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Thomas

Learn Thomas’s areas of practice.

Practice areas
  1. Environmental and natural resources
    Represents clients on major environmental compliance, litigation, toxic tort and counseling matters. Tom’s practice covers a wide range of cutting-edge technical and substantive areas, including water quality, CERCLA, toxic tort, air quality, emerging contaminant litigation, environmental cost cap insurance, sediment contamination, mine remediation, vapor intrusion, risk-based closures, environmental audits, and land use planning.

    29 years

  2. Oil and gas

    18 years

  3. Mediation

    11 years

Tom Bloomfield is an experienced environmental attorney and trained mediator. He is adept at understanding not only complex legal issues, but also technical and financial aspects of cleanup, environmental exposure and litigation. He manages the Colorado office of The Gallagher Law Group.


He represents clients on environmental, natural resource and toxic tort litigation and counseling matters. He is also a national expert on financial assurance, environmental insurance, fixed-price contractual arrangements and policy/legal restrictions associated with alternative financing approaches to settlements.


Tom’s specialties include: CERCLA, RCRA, CEQA, NEPA, CAA, CWA, Mining, Energy, Land Use, Fracking, and Oil and Gas production and processing. He has represented clients in litigation and cleanup matters concerning perchlorate, solvents, mine waste, PCBs, lead, oil and gas emissions, hexavalient chrome, and mercury.


As a mediator, Tom brings a unique mix of skills that is of great assistance to parties seeking to resolve complex problems. He has represented industry, governmental entities and non-profit organizations throughout his career, providing him with an ability to understand diverse viewpoints. His strong grasp of legal, technical and financial issues can be critical to finding a solution to difficult environmental disputes.

Contact Thomas

The Gallagher Law Group, P.C.
2060 Broadway.
Suite 280
Boulder, CO, 80303


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AVVO RATING 7.6 (Very Good)

Work Experience

  • Senior Attorney
  • The Gallagher Law Group
  • 2003 - Present
  • Associate
  • Morrison & Foerster
  • 2003 - 2007
  • Deputy Regional Counsel
  • US Environmental Protection Agency
  • 1997 - 2003


  • Dartmouth Coll
  • undergraduate
  • N/A
  • law
  • N/A

Legal Cases

  • Atlantic Richfield Company v. State of California, et al.
  • The case settled favorably for our clients during a six (6) week jury trial.
  • Colorado Mining Association v. Christopher E. Urbina
  • Mr. Bloomfield successfully defended the action in state court and through appeals.
  • City of Rialto, et al., v. United States Department of Defense, et al., Case No. CV 09-07501 PSG
  • Our clients settled on favorable terms and obtained a good faith settlement determination from the U.S. District Court.
View all legal cases


  • Dartmouth Association of the Rocky Mountains
  • Trustee, Treasurer
  • 2014 - Present
  • Congregation Har Hashem
  • Trustee
  • 2011 - Present
  • Dartmouth Lawyers Association
  • Member
  • 2005 - Present

Languages Spoken

  • English

Honors and Awards

  • AV Preeminent
  • Martindale-Hubbell
  • 2016
  • Certificate of Commendation for Outstanding Performance
  • United States Department of Justice
  • 2001
  • California Lawer of the Year
  • California Lawyer Magazine
  • 2000
  • Gold Medal
  • U.S. EPA `
  • 2000
  • Federal Employee of the Year, Civil Law Enforcement
  • Federal Executive Board (Bay Area)
  • 2000
  • Gold Medal
  • U.S. EPA
  • 1997
View all awards


  • Strafford Publications Webinar
  • Settling CERCLA Cases: Executing an Effective Strategy,
  • 2015
  • ClearLaw Webinar
  • Cutting Edge Strategies for Managing and Resolving CERCLA Liability
  • 2015
  • Strafford Publications Webinar
  • Settling Private CERCLA Litigation
  • 2013
  • Environmental Science & Policy, 13 (2010) 558-566
  • Policy Guidance for Identifying and Effectively Managing Perpetual Environmental Impacts from New Hardrock Mines
  • 2010
  • 37th American Bar Association Annual Conference on Environmental Law, Keystone, CO March 2008
  • The Topsy Turvey World of CERCLA – Unknown Law – Uncertain Science (Voted Best Paper)
  • 2008
View all publications

Speaking Engagements

  • Third Annual California Water Summit
  • Legal Strategies for Responding to Groundwater Contamination in California.
  • 2016
  • Dartmouth Lawyers Association Conference, Telluride, Colorado
  • Not Your Father’s Clean Air Act: New Laws, Policies and Regulations in Effect or Coming Soon
  • 2015
  • University of Denver Enrichment Program
  • Colorado Energy: Drilling Down on a Complex Issue
  • 2014
  • 37th American Bar Association Annual Conference on Environmental Law, Keystone, CO
  • The Topsy Turvey World of CERCLA – Unknown Law – Uncertain Science (Voted Best Paper)
  • 2008
View all speaking engagements

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Boulder Environmental and natural resources Lawyer Thomas Alan Bloomfield
Thomas Alan Bloomfield
Environmental and natural resources Attorney
Boulder, CO
Licensed for 30 years