Peter A. Tomasi, Partner


Peter Tomasi is Vice-Chair of the Environmental Group.  He has 16 years of experience in litigation and counseling all areas of environmental law, including hazardous waste handling and disposal, and water and air permitting and compliance.  Mr. Tomasi deals with novel issues under the Clean Air Act, Clean Water Act, RCRA, and Superfund, including enforcement, citizen suit litigation, and transactional and insurance advice. Mr. Tomasi has further experience with general civil, commercial, and intellectual property litigation. His recent experience includes:

  • Representation of multiple clients in citizen suits brought under the Clean Air Act and Clean Water Act.
  • Representation of a utility relating to several challenges to a proposed generating facility, including challenges to the preconstruction permit issued under the New Source Review provisions of the Clean Air Act and discharge permit issued by the state NPDES permitting program.
  • Assisted with defense of challenges to the adequacy of the application for a wetlands permit under Chapter 30 of the Wisconsin Statutes, and with challenges to an application for a wetlands dredging permit required by Section 404 of the Clean Water Act.
  • Representing clients in determining a compliance path to meet stringent state phosphorus limits.
  • Representation of multiple clients in challenges to the adequacy of environmental assessments and environmental impact statements prepared in accordance with the Wisconsin Environmental Policy Act (WEPA).
  • Assisted numerous clients in obtaining required New Source Review, Title V, FESOP, Chapter 30, and WPDES permits.
  • Assisting a public power agency in addressing and resolving an enforcement case for a natural-gas-fired peaking station.
  • Assisting a Fortune 500 transportation company in developing its first carbon management and climate change strategy.
  • Providing due diligence to the lender underwriting the construction of a 133-turbine, 200 MW wind farm in Wisconsin, which also included an evaluation of the need for and completeness of efforts to obtain relevant federal, state, and local approvals.
  • Assisting a utility in identifying necessary regulatory approvals relating to the conversion of an existing 40 MW coal-fired power plant to combust 100 percent biomass, and providing advice relating to obtaining an air pollution control permit for that facility.
  • Assisted healthcare facilities in developing compliance programs for the handling and disposal of hazardous waste pharmaceuticals.
  • Advising a $40 million nameplate ethanol plant and a $110 million nameplate ethanol plant in Wisconsin regarding air and wastewater permitting matters.
  • Advising clients regarding environmental and regulatory concerns relating to the construction and operation of renewable energy projects, including biomass, solar, and wind energy.

Legal Services

Education and Honors

  • University of Notre Dame, Mendoza College of Business (Certificate of Executive Management, 2013)
  • Duke University (J.D., cum laude, 2001)
    • Duke Environmental Law and Policy Forum (Symposium Editor)
    • Cummings Fellow in Environmental Law Merit Scholarship
  • Duke University (M.E.M., 2001)
  • University of Chicago (B.A., cum laude, 1997)
    • Major: Chemistry

Bar Admissions

  • Illinois
  • Wisconsin

Court Admissions

  • U.S. District Court, Eastern District of Wisconsin, 2003
  • U.S. Patent and Trademark Office, 2002

Professional and Civic Activities

  • Wisconsin Bar Association (Treasurer, Environmental Law Section)
  • Wisconsin Legislature Committee on Domestic Biofuels (Member)
  • Milwaukee Science Education Consortium (Board of Directors)

Professional Recognition

  • Recognized as Best Lawyers® 2018 Milwaukee Energy Law "Lawyer of the Year"
  • Listed in Chambers USA® (2011–present: Natural Resources & Environment)
  • Listed in Best Lawyers® (2010–present: Environmental Law)
  • Selected for inclusion in Wisconsin Super Lawyers®–Rising Stars Editions 2008–2012 (Environmental)