Samir Abdelnour

Samir J. Abdelnour


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Environmental and Natural Resources
Environmental and Natural Resources
San Francisco

Samir's practice focuses on environmental litigation and counseling. He routinely advises and represents public agencies, Fortune 500 companies, small businesses, and individuals in regulatory environmental enforcement actions, remediation of contaminated properties, land use entitlement and permit proceedings, litigation over water rights, toxic tort litigation, and product labeling. Samir’s practice includes a broad range of state and federal environmental and land use laws, including the Clean Water Act (CWA), Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), Resource Conservation and Recovery Act (RCRA), National Environmental Policy Act (NEPA), California Environmental Quality Act (CEQA), Porter-Cologne Water Quality Control Act, Carpenter-Presley-Tanner Hazardous Substance Account Act, and California’s Safe Drinking Water and Toxic Enforcement Act of 1986 (“Proposition 65”). Samir currently serves as the Vice Chair – Hazardous Waste on the Executive Committee of the Bar Association of San Francisco Barristers’ Environmental, Land Use and Real Estate (“ELURE”) Section. Prior to joining Hanson Bridgett, Samir practiced environmental law at a top-tier environmental litigation boutique in San Francisco. Samir also has experience litigating general commercial and business disputes.

Representative Work

  • Defending Fortune 500 company in California district attorney investigation regarding hazardous materials management and hazardous waste disposal.
  • Representing global manufacturing company in allocation of remediation costs at industrial property regulated under RCRA and CERCLA.
  • Defending technology company in Cal OSHA investigation.
  • Evaluating claims asserted by the EPA regarding liability for remediation of a former smelting facility and negotiating settlement with the EPA and other potentially responsible parties.
  • Investigating historical domestic uranium mining and evaluating potential liability arising out of ownership or operation of abandoned mines.
  • Defending toxic tort mass action alleging neighborhood-wide exposure to hexavalent chromium and related damages by thousands of plaintiffs.
  • Evaluating and responding to claims asserted by successor or neighboring property owners regarding alleged soil and groundwater contamination.
  • Defending civil enforcement action by state agency regarding discharge of hazardous waste at airport facility.
  • Analyzing requirements of several states regarding storm water discharges and permits for air transportation facilities. 
  • Defending numerous manufacturers, distributors and retailers of consumer products in California in Proposition 65 private enforcement actions.
  • Litigating historical water rights threatened by government actions in California, Nevada and New Mexico.
  • Defending potential civil and criminal liability for hazardous waste discharge alleged by state regulatory agency at recycling facility.


"Attorney General Amends Settlement Guidelines in Proposition 65 Regulations," Proposition 65 Law Alert (October 2016) 

"California Adopts Long-Pending Modifications to Proposition 65 'Clear and Reasonable' Warning Regulations," co-author, Proposition 65 Law Alert (September 2016)

"California Supreme Court Upholds Pre-condemnation Entry and Testing Law with Addition of Jury Option," Water Law Alert (July 2016)

"Comply and Conserve," co-author, SF Apartment Magazine (May 2016)

"State Water Board Reinstates Monthly Reporting Requirement on Diverters in Sacramento and San Joaquin River Watersheds," Water Law Alert (March 2016)

"State Water Board Extends Emergency Water Conservation Regulation," Water Law Alert (February 2016)

"State Water Board Adopts Water Use Reporting and Measurement Regulations," Water Law Alert (January 2016)

"Drought State of Emergency: Mandatory Water Use Reduction Extended to October 2016," Water Law Alert (November 2015)

"Competing TSCA Reform Bills: A Break in Partisan Fever?" co-author, Corporate Counsel (May 2015)

"New Proposition 65 Regulations Being Considered in California," co-author, Natural Products Insider (March 2015)

"Court Signals Mixed on NEPA Analysis," American Oil & Gas Reporter (April 2014)

"Will 2014 Finally Be the Year for Long-Awaited CEQA Reform?," co-author, Daily Journal (January 2014)

See All Publications

Blog Posts

See All Blog Posts


"Technical Track Panel," co-speaker, 2017 PMI Conference (November 2017)

"Environmental Law Basics: Understanding Hazardous Waste," moderator, The Bar Association of San Francisco (November 2017)

See All Presentations

Judicial Clerkships

Judicial Extern for the Honorable Judge James Larson (Ret.), U.S. District Court for the Northern District of California

Academic Distinction

Hastings Constitutional Law Quarterly, Executive Symposium Editor

Pro Bono Publico Award for Public Service, as Public Benefits Advocate with General Assistance Advocacy Project (2007-2009)

CALI & Witkin Awards, Film & the Law Writing Seminar


J.D., cum laude, University of California, Hastings College of the Law (2010)

B.A., with honors, The University of Texas at Austin (1997)

Admissions And Courts


U.S. Court of Appeals for the Ninth Circuit

U.S. District Court for the Central District of California

U.S. District Court for the Eastern District of California

U.S. District Court for the Northern District of California

U.S. District Court for the Southern District of California

San Francisco

415-995-5869 Direct Phone
415-995-3581 Fax

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