Peter F. Durning

        Partner

        Peter is a seasoned environmental attorney with a focus on water and wetlands-related matters, including litigation, enforcement defense, land use, and permitting.

        Peter has extensive experience in adjudicatory appeals under the Wetlands Protection Act and Chapter 91; U.S. Environmental Protection Agency (EPA) enforcement actions; solid waste site assignment hearings; citizen suits regarding stormwater discharges; zoning disputes; and business and transactional consulting, as well as local, state, and federal permit proceedings and appeals. Additionally, Peter performs environmental due diligence for real estate transactions, development contracts, and corporate transactions.

        Public water suppliers are a core element of Peter’s client base in the environmental practice. He also works with renewable energy facility investors, high-net-worth individuals, small businesses, and municipalities. No matter the client, Peter is committed to understanding their goals and translating scientific analysis into practical applications of the law to serve their interests.

        Peter draws upon his seven years of pre-law experience as a history teacher to deliver legal arguments. He uses these skills to set the arc of a deposition outline or deliver a closing argument at trial. Notably, he delivered the winning oral argument before the Massachusetts Supreme Judicial Court in the case of Town of Concord v. Water Department of Littleton, 487 Mass. 56 (2021), which involved the statutory interpretation of the Water Management Act.

        Having addressed many hazardous waste cleanups and litigated issues of responsibility for site contamination, Peter’s skills complement those of our transactional and real estate attorneys to craft agreements and covenants that help clients evaluate risk and execute deals.

        Services/Industries

        Education

        • Boston College Law School (J.D.)
        • University of Notre Dame (B.A.)

        Bar Admissions

        • Massachusetts

        Memberships

        • Boston Bar Association: Energy & Environmental Co-Chair (2016-2018); Environmental Litigation Committee Co-Chair (2012-2014)
        • Environmental Business Council: Member, Solid Waste Management Committee; Former Chair, Water Resources Committee
        • Massachusetts Water Works Association
        • Boston Bar Association: Chair of the Wetlands and Waterways Committee of the Energy & Environmental Law Section

        Honors

        • Recognized in Chambers USA: America’s Leading Lawyers for Business under Massachusetts Environmental Law (2017-2025)
        • Lawdragon Green 500: Leaders in Environmental Law (2023–2026)
        • Name The Best Lawyers in America® Water Law “Lawyer of the Year” (2024)
        • Listed in The Best Lawyers in America® under Environmental Law and Water Law (2022–2026)
        • Listed in The Best Lawyers in America® under Litigation – Environmental (2026)
        • Selected by peers for inclusion in Massachusetts Super Lawyers under Environmental Litigation (2015–2025)

        Learn more about the third-party ratings, rankings, and selection processes used for inclusion.

        Firm Highlights

        Press Releases

        Verrill Welcomes Construction Attorney Cassie Dufon

        PORTLAND, Maine – Verrill is pleased to welcome Cassie Dufon to the firm’s Construction Group as an Associate, resident in the firm’s Portland...
        Press Releases

        Verrill’s Wide-Ranging Private Wealth Law Practice Recognized in 2026 Chambers and Partners High Net Worth Guide

        BANGOR and PORTLAND, Maine and BOSTON, Mass. – Verrill attorneys Kenneth P. Brier, Anya F. Endsley, Kurt E. Klebe, Mary McQuillen, Nathaniel S....
        Blog

        Update on Status of Maine Packaging EPR

        In December 2024, Verrill published a blog post, Unwrapping Maine's Gift to the Environment: A New Packaging Stewardship Program Set to Launch in...
        Blog

        Voluntary Benefits Move into the ERISA Litigation Crosshairs

        Employee-paid accident, critical-illness, cancer, and hospital-indemnity insurance have long occupied a quiet corner of employee benefit plan...
        Alerts and Newsletters

        Maine’s New Employer Surveillance Law, 26 M.R.S. § 620-A

        Effective July 14, 2026 Maine employers that electronically monitor employees must comply with a new disclosure law effective July 14, 2026. Under...
        Press Releases

        Verrill Recognized by U.S. News as One of the Best Law Firms to Work for in 2026

        BOSTON, Mass., BANGOR and PORTLAND, Maine, GREENWICH and WESTPORT, Conn., – Verrill has been featured on U.S. News’ 2026 Best Companies to Work...
        Blog

        SECURE 2.0 Roth Catch-Up Rules and the 403(b) 15-Year Catch-Up: What Tax-Exempt Employers Need to Know

        Tax-exempt employers whose 403(b) plans offer catch-up contributions for participants age 50 and above should be well on their way to compliance with...
        Media Mentions

        Robert Keach Quoted in Law360 on SIMAD Summer Camp Bankruptcy Sale

        Verrill attorney Robert Keach was recently quoted in a Law360 article examining the Chapter 11 bankruptcy proceedings involving SIMAD Holdings and...
        Media Mentions

        Chris Tsouros Featured in Law360’s Coverage of Sports Real Estate Deals

        Verrill Partner Chris Tsouros was recently recognized in a Law360 article highlighting law firms involved in significant sports real estate projects...
        Blog

        What Maine’s New Employer Surveillance Law Means for Maine Employers

        Maine employers who monitor their workforce, whether through productivity software, GPS, call recording, or cameras, have a new compliance obligation...
        Blog

        Run Don’t Walk: The Implication of “While Supplies Last” Prize Promotions

        This month a big-chain grocery store has been offering daily mystery boxes during specific timed drops on a first-come, first-served basis, to users...
        Blog

        Maine’s Noncompete Statute is Reshaped for Health Care Workers: What You Need to Know

        Employers of individuals who are licensed under state law to perform, or provide, health care services in the State of Maine should be prepared for...