Peter M. Morrisette

Senior Counsel


Clients rely on Peter's advice on a broad range of environmental matters involving the investigation and cleanup of contaminated properties. As an environmental litigator, Peter also represents his clients before regulatory agencies including the Department of Toxic Substances Control and the regional water quality control boards. 

Litigator And Trial Attorney For California Businesses

Peter is involved in lawsuits seeking the recovery of contaminated property cleanup costs under Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) and state law claims of nuisance and trespass. He has represented clients as both plaintiffs and defendants and has overseen high-profile Proposition 65 litigation matters involving glassware, pharmaceuticals, food products and dietary supplements. He also handles lawsuits involving business disputes, breach of contract, professional negligence and tax compliance matters.

Environmental Compliance Counsel

Peter helps landowners and developers meet their compliance and reporting requirements when it comes to the handling and disposal of hazardous materials and waste. He has negotiated dozens of Proposition 65 settlements and advises clients on California's laws and regulations pertaining to greenhouse gas emissions.


Represented a municipal entity plaintiff in $30 million environmental cost recovery action against multiple defendants. Case settled with all but one defendant. After a seven-week bench trial, obtained a favorable judgment against the remaining defendant.

Represented a large landowner client in a CERCLA cost recovery action involving a complex multi-year, multi-party mediation where the parties worked collaboratively on the site cleanup while simultaneously negotiating a settlement.

Assisted an energy company in complex compliance matter related to the handling and disposal of hazardous waste under federal and state law.

Represented a large residential subdivision developer in a lawsuit alleging grading exposed neighbors to naturally occurring asbestos. Obtained very favorable settlement for client.

Represented a large pharmaceutical company client in multi-party Proposition 65 lawsuit. Client successfully defeated the lawsuit on demurrer, which was upheld on appeal.

Represented dozens of different retailers, distributors, and manufacturers to obtain favorable settlements of Proposition 65 lawsuits, and to avoid liability under Proposition 65 in the first instance.

Represented the developers/investors in $150 million tax refund lawsuit in federal court and obtained very favorable settlement for the clients.

Ongoing representation of the plaintiffs in professional negligence lawsuit against large international accounting firm seeking more than $20 million in damages.

Publications &
Speaking Engagements


Published Appellate Decisions

In re Vaccine Cases, 134 Cal. App. 4th 438 (2005)

Department of Conservation v. El Dorado County, 108 Cal. App. 4th 672 (2003) 

City of Martinez v. Texaco Trading & Transport, Inc., 353 F.3d 758 (9th Cir. 2003)

Speaking Engagements

Cap-and-Trade: Getting Ready For The First Auction Seminar, Law Seminars International, 7/23/2012


Awards &

Professional Affiliations

  • Climate Change Law and Policy Reporter published monthly by Argent Communications, Editorial Board, 2008-present


California's State-Run Carbon Auctions - A Taxing Matter

Peter Morisette and Robert Infelise co-authored the article "California's State-Run Carbon Auctions - A Taxing Matter... More»

Bar and Court Admissions

  • State Bar of California


  • J.D., University of California, Berkeley School of Law (Boalt Hall), 2000
  • Ph.D., University of Colorado Boulder, 1987
  • M.A., University of Oregon, 1984
  • B.S., University of Oregon, 1982, with honors, phi beta kappa, Alpha of Oregon