Jason Moberly Caruso is a partner in the Newport Beach office of Newmeyer Dillion.  His practice focuses on various aspects of “contaminated sites” environmental legal work, complex litigation, and appellate matters.

Environmental Litigation  & Regulatory Matters

Jason counsels and represents current and former facility owners and operators in state and federal proceedings, administrative actions, cost recovery cases, and non-litigation site remediation situations.  The litigated matters frequently involve the federal Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) and its parallel California Hazardous Substances Account Act (HSSA).  Jason’s counsel reflects an overlay of the technical, regulatory, and legal dynamics inherent in contaminated sites, often during real estate transactions or when seeking no-further-action determinations.  Further, Jason specializes in Proposition 65 warnings for property owners and producers/distributors of consumer products regarding hazardous substance exposures.

Complex Litigation & Appellate Matters

When clients must go to court, Jason applies his significant experience in complex state and federal litigation over a broad range of substantive areas, including environmental, business, real estate, construction, and products liability.  His experience extends from pre-litigation through trial and post-trial proceedings.

Jason has particular expertise in appellate matters, and has obtained victories for clients in general appellate and extraordinary writ proceedings in state and federal appellate courts.  Jason has presented oral argument in appeals before the Ninth Circuit Court of Appeals and the California Court of Appeal.

Community Engagement

Jason’s community engagement includes serving as a mock trial attorney coach for University High School through the Constitutional Rights Foundation Orange County (CRF-OC) and as a member of CRF-OC’s Board of Directors. Jason also serves as secretary of the Orange County Bar Association’s Professionalism & Ethics Committee, and is a member of the executive committee of the William P. Gray Legion Lex Inn of Court.

Awards & Recognition

  • Super Lawyers Rising Star, 2016-2021
  • Orange County Best Lawyers list, 2018-2020
  • Consumer Attorneys of California New Lawyers Division Award of Merit


  • Spanish


  • California, 2012
  • U.S. District Court, Central District of California
  • U.S. Court of Appeals, Ninth Circuit


  • University of California, Hastings College of Law (J.D., 2012)
    • University of Southern California (B.A., 2009)
      • Political Science