Bonnie L. Heiple

Bonnie Heiple focuses her practice on environmental, energy and natural resources law. She advises clients on a wide range of litigation and transactional matters, and provides strategic counsel on project development and federal and state regulatory compliance.

Ms. Heiple represents clients in civil and administrative investigations and enforcement proceedings, including leadership roles in large multi-party Superfund PRP defense groups. Recent engagements include:

  • defending a major national research facility against an EPA investigation following a multi-media inspection;
  • representing a consortium of state agencies in controversial administrative litigation involving a nuclear power plant and a myriad of stakeholders; and
  • representing a global electronics manufacturer in an OSHA proceeding and advising the company on environmental health and safety requirements.

In the energy and natural resources space, Ms. Heiple counsels developers and project proponents in all phases of project development and interfaces with local, state and federal agencies. That work includes assisting ski areas in implementing development plans and negotiating conservation and other land use agreements. She recently secured approvals for the largest renewable energy generation facility on a Region 1 Superfund site and for the largest wind energy generation facility in Colorado.


Before joining WilmerHale, Ms. Heiple practiced at a Connecticut law firm, where she counseled clients in all areas of environmental and regulatory law, including representing utility companies (traditional and renewable energy, water and telecommunications) in connection with compliance issues, siting proceedings and investigations by administrative agencies.

Ms. Heiple also worked for the United States Environmental Protection Agency, Region 1, and served as a Special Assistant to the Commissioner of the Connecticut Department of Energy and Environmental Protection.

Professional Activities

Ms. Heiple serves as Vice Chair of the American Bar Association’s Environmental Litigation and Toxic Torts Committee. She chaired the Energy Infrastructure, Siting, and Reliability Committee from 2018–2020, and also was selected for the ABA Section of Environment, Energy, and Resources Leadership Program. At the Boston Bar Association, Ms. Heiple has served on the Advisory Committee for the 2019 and 2020 BBA Energy Conferences, on the Board of Editors of the Boston Bar Journal, and as a co-chair of the Hazardous and Solid Waste Committee of the Environmental Law Section. She recently concluded a three-year term on the Board of Young Professionals in Energy, also serving as president for the final year.

Ms. Heiple has served on the Board of the American Lung Association (Massachusetts) for 11 years, and now serves as its nominating chair.

Ms. Heiple is active at her alma mater, the Boston University School of Law, where she mentors first-year law students and serves as a moot court judge, among other engagements.

Within the firm, Ms. Heiple serves on the steering committee of the Women's Leadership Initiative.

Speaking Engagements

Ms. Heiple moderated a panel of legal and energy experts highlighting the “State of the Sectors” for natural gas, solar and offshore wind at the at the Boston Bar Association 2020 Energy Conference.

She presented frequently on workplace health and safety issues during the COVID-19 pandemic, including as part of WilmerHale’s May 2020 COVID-19: Reopening Responsibly—Corporate Risk Mitigation Strategies webinar.

In October 2019, Ms. Heiple presented a webinar titled “Developing Renewable Energy on Contaminated Land: Regulatory Challenges and Protecting Against Liability Exposure.”  

Ms. Heiple discussed environmental risk management and mitigation as part of an August 2019 webinar titled “Decommissioning Energy Assets: Regulatory Issues, Liability, Managing Disputes, Disposal of Structures and Waste.” 

She presented on a panel titled “Adapting Facility Sites for Next-Gen Generation” at the Boston Bar Association 2019 Energy Conference.

In June 2018, she chaired a panel regarding state and federal roles in energy and infrastructure policy and regulation at the Women in Energy and Infrastructure—Powering the Future Conference.

Ms. Heiple served as a panelist at the 2018 “Future in the Sciences” event at Northeastern University.

Ms. Heiple chaired a panel at the Women in Energy and Infrastructure—Powering the Future Conference, which took place in November 2017 in Washington, D.C., regarding the future of U.S. energy development.

In June 2016, Ms. Heiple co-chaired a Climate Change Continuing Legal Education (CLE) program at the Boston Bar Association.

Ms. Heiple presented a round-up of important regulatory developments at the Northeast Gas Association Executive Conference in September 2015.

She was a panelist at an EPA Region 1 roundtable entitled “Renewable Energy on Contaminated Properties in Massachusetts” in November 2014.

In September 2013, Ms. Heiple presented a seminar entitled “Siting Solar on Landfills,” sponsored by the Boston Bar Association's Energy & Telecommunications Law and Hazardous & Solid Waste committees.

She frequently coordinates and moderates panels and presentations at the Boston Bar Association.


  • Selected by peers for inclusion in the 2018–2021 editions of the Best Lawyers in America for her administrative/regulatory law and environmental law practices 
  • Recipient of 2020 Burton Award for legal writing
  • Selected by Law360 as one of five environmental law "Rising Stars" in 2019
  • Named a "Massachusetts Super Lawyer" for environmental law in the 2019 and 2020 editions of Boston Magazine, and previously listed as a “Rising Star” in 2013–2018. 
  • Selected as a Super Lawyers' 2016 and 2017 "Top Women Attorneys in Massachusetts—Rising Star" in Boston Magazine
  • Recognized by the New York Bar Association as a 2014 Empire State Counsel honoree for pro bono service

Insights & News


  • Education

    • JD, Boston University School of Law

      Editor, Boston University Public Interest Law Journal
    • BA, English and Environmental Law, Bucknell University

      magna cum laude
  • Admissions

    • Massachusetts

    • Colorado

    • Connecticut

    • New York