Peter Duchesneau

Peter Duchesneau


Manatt, Phelps & Phillips, LLP

Recognized since 2014

Los Angeles, California

Practice Areas

Environmental Law

Litigation - Environmental

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Pete Duchesneau’s practice focuses on most aspects of environmental law involving litigation, administrative proceedings, regulatory compliance and business transactions. He handles complex environmental litigation in federal and state courts, including CERCLA, RCRA, Clean Water Act, products liability, toxic tort, and Proposition 65 actions, among others. Pete has significant experience with emerging chemicals and drinking water contamination.

In addition to litigation, Pete counsels clients on regulatory compliance involving such matters as green chemistry, Proposition 65, FIFRA/pesticides, OSHA, TSCA, RoHS, air quality, climate change, SMCRA, wastewater and hazardous waste; and has successfully represented clients before administrative agencies, including the U.S. Environmental Protection Agency, the California Regional Water Quality Control Board, the California Department of Toxic Substances Control, and the South Coast Air Quality Management District. He also advises on corporate and real estate transactions, brownfields, and environmental due diligence as well as with regard to environmental auditing.

Prior to being an attorney, Pete was an engineer with an international environmental consulting firm where he performed work for the U.S. EPA , the California Department of Toxic Substances Control, and the DOD, among other clients. He later left consulting to join the corporate environmental management office of a Fortune 100 company, where he headed efforts to work with policymakers in the development of environmental laws and regulations and managed air toxics and Superfund programs.

Contact & Links
Location
  • 2049 Century Park East, Suite 1700
    Los Angeles, CA 90067
Education
  • Southwestern University School of Law, J.D., graduated 1993
Bar Admissions
  • California, State Bar of California
  • South Carolina, South Carolina Bar
Affiliations
  • American Electronics Association, Environmental Health & Safety Steering Committee - Member, 1990-1994
  • ASTM International, Committee E50 on Environmental Assessment, Risk Management and Corrective Action - Member
  • California Manufacturer & Technology Association, Environmental Quality Steering Committee - Member, 1990-1995, 2004-2007, Chair, 1994-1995
  • California State Bar Association, Environmental Law Section - Member
  • Camp Ronald McDonald for Good Times, Board of Trustees - Member, 2006-2013
  • Environmental Editorial Advisory Board, Law360 - Member, 2011-2015
  • Los Angeles County Bar Association; Executive Committee, Environmental Law Section - Member, 1998-2011, Chair, 2009-2010
  • Ronald McDonald House Charities of Southern California, Board of Directors - Member, 2006-2012
  • Southwestern Law School Board of Trustees - Member
  • The Leukemia & Lymphoma Society, Greater Los Angeles Chapter, Board of Trustees - Member, 2007-2014, Chair, 2008-2012

Manatt, Phelps & Phillips, LLP
Headquarters: Los Angeles, California

87 The Best Lawyers in America® awards

22 Best Lawyers: Ones to Watch® in America awards

Best Law Firms Badge Visit Website View Firm Profile

Recognized in The Best Lawyers in America® 2025 for work in:
  • Environmental Law
  • Litigation - Environmental
Awards:
  • Awarded Pro Bono Attorney of the Year, Adoptions Project, Public Counsel (2012)
  • Listed in Southern California Super Lawyers®, Law & Politics Magazine/Thomson Reuters (2005-2016)
  • Listed in Southern California Super Lawyers-Rising Stars®, Law & Politics Magazine (2004)
  • Included in Who’s Who In L.A. Law; Los Angeles Business Journal (Oct. 6, 2008).

Publications

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