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Robert W. Petti

Senior Counsel

30 South Wacker Drive
Suite 3920
Chicago, IL 60606

(312) 767-1314
Fax (601) 579-3144

Robert Petti focuses his practice on environmental law and complex civil litigation.

Prior to joining the firm, Robert worked in both government regulatory and private practice in Colorado and Illinois. Robert holds a bachelor of science in geology and environmental resource management, and employs his scientific knowledge to guide his understanding of the often complex network of technical issues pervasive in environmental matters. He has utilized this unique background to achieve successful outcomes handling matters before trial courts, appellate courts, and administrative boards on an array of environmental concerns including CERCLA (Superfund), RCRA, EPCRA, the Clean Air Act, the Clean Water Act, and a variety of private claims involving toxic or hazardous material claims. Robert also utilizes his scientific background to aid in the litigation of complex construction matters. His experience working with small and midsize businesses, as well as major industrial and commercial entities, has taught him that understanding the varied challenges faced by businesses of all sizes are an important part of reaching a positive resolution in each unique matter.

  • Agricultural Law - Chemical Exposure and Herbicide Spray Drift.
  • "PFAS: 2022 Trending Towards a Major Turning Point in Regulation and Litigation," Toxic And Hazardous Substances Litigation Committee Newsletter, December 2021.
  • "Will Forever Chemicals, PFAS, Lead to Never-Ending Lawsuits?," Claims Journal, November 17, 2021.
  • "Will Forever Chemicals, PFAS, Lead to Never-Ending Lawsuits?,”  Insurance Journal, November 16, 2021
  • "How the Biden Administration will Affect Environmental Underwriting and Claims," Perrin Environmental Risk & Litigation Conference, New York, NY, 2021.
  • "Environmental Reopeners - Strategies to Managing Risk and Impacts," Perrin Environmental Risk & Litigation Conference, 2019.
  • Colorado Bar Association CLE on Brownfields Redevelopment, Co-Chair, Denver, CO.
  • "Trump Administration Impacts on Environmental Laws," Perrin Environmental Risk & Litigation Conference, 2018. 
  • LawCo-Chair/Moderator - Air & Waste Management Association, Air Quality Management Conference, 2018.
  • "Lead, Vapor Intrusion & Groundwater Contamination," Perrin Environmental Risk & Litigation Conference, New York, NY, 2017.
  • Claims Litigation Management Webinar: Vapor Intrusion Regulatory Updates.
  • "Beneath the Surface: Developments in Vapor Intrusion Regulation and Why They Matter," CLM Magazine, March 2017.
  • Associate Member, Environmental Law Institute
  • Chicago Bar Association, Environmental Law Section and Administrative Law Section
  • Environmental Section of the Colorado Bar Association, Advisory Council
  • DePaul University College of Law (J.D. )
  • Western Michigan University (B.S. )
  • Illinois
  • Colorado
  • U.S. Court of Appeals for the Tenth Circuit
  • U.S. District Court for the District of Colorado