David Barnes concentrates his practice on environmental litigation and enforcement matters and regulatory consulting, with a particular focus on site remediation and hazardous waste requirements. Mr. Barnes represents clients in regulatory enforcement matters, toxic tort litigation, and natural resource damage claims and remedial issues at major contaminated sites and rivers, including toxic tort, natural resource damage, and cost allocation. He has worked closely with officials from federal and state agencies to negotiate agreements on compliance, cost recovery, and remediation. Mr. Barnes' litigation experience includes appearing in both federal and state courts and arguing a criminal sentencing hearing in the Northern District of California.

Mr. Barnes is a graduate of Stanford Law School, where he received the John Hart Ely Prize for Outstanding Performance in Mental Health Law and in Alchemy, Law, and Practice. While in law school, Mr. Barnes interned with the Yosemite National Park Legal Office, where he appeared in the Eastern District of California on behalf of the United States Government and served as lead prosecutor in a federal criminal trial.


  • RCRA Enforcement. Represent large multinational conglomerate company in negotiations with California Department of Toxic Control concerning groundwater contamination at multiple landfill sites.
  • CERCLA Enforcement in EPA Region 9. Represent group of commercial property owners in connection with vapor intrusion issues at Superfund Site.
  • CERCLA Enforcement in EPA Region 9. Represent large university in cost recovery action concerning groundwater contamination and negotiate resolution with EPA and California Department of Toxic Substances Control.
  • California Department of Toxic Substances Control. Represent large university in negotiating resolution of Hazardous Waste Control Law Matter.
  • Proposition 65. Defended dozens of clients ranging from food manufacturers to personal care companies concerning allegations that their products require Proposition 65 warnings.
  • Proposition 65. Advise the Grocery Manufacturers Association and American Herbal Products Association on Proposition 65 regulatory proceedings.


California Ballot Initiative Filed to Phase Out Single-Use Packaging and Ban Polystyrene Food and Beverage Containers
Two-Month Warning: California Cleaning Product Right to Know Act
DTSC Identifies Scope of Future Regulation Under California's Green Chemistry Program
Seller Beware: Consumer Protection Insights for Industry
From Repatriation to Cooperation: Gustaf Nordenskiƶld's Mesa Verde Collection
18 U. Denv. Sports & Ent. L.J.


  • JD, Stanford Law School, 2017
  • BA, Kent State University, 2012, summa cum laude
  • California
  • US District Court, Northern District of California
  • US District Court, Eastern District of California
  • Vice President and Founding Member, Kent State University Bay Area Alumni Association
  • Member, Law Day Planning Committee, Yosemite National Park

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