GENESEE PENNSYLVANIA CONSTRUCTION EXPERT WITNESS
DIRECTORY AND CAPABILITIES

From CERCLA to Drinking Water: D.C. Circuit’s PFAS Ruling Enters a Second Regulatory Fight

October 06, 2026 — Ashleigh K. Myers, Amanda G. Halter & Jillian Marullo - Gravel2Gavel Construction & Real Estate Law Blog
On August 18, 2026, a unanimous panel of the U.S. Court of Appeals for the D.C. Circuit upheld EPA’s designation of perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA or Superfund). In Chamber of Commerce of the United States v. EPA, the court rejected challenges to EPA’s interpretation of CERCLA Section 102(a), the adequacy of its notice and comment process, its analysis of costs and benefits, and its decision to proceed despite uncertainty about future response actions and costs. This decision is already being invoked in a separate D.C. Circuit challenge to EPA’s 2024 PFAS drinking water rule promulgated under the Safe Drinking Water Act (SDWA). Six days after the CERCLA decision, respondent intervenors cited it as supplemental authority in American Water Works Association v. EPA, No. 24-1188, ahead of oral argument scheduled for September 18, 2026. The Chamber of Commerce decision may assist the respondent intervenors on certain notice and comment and economic analysis arguments, but its significance should not be overstated. The principal challenges to the standards for the four PFAS subject to EPA’s Hazard Index-based maximum contaminant level (MCL) turn on requirements specific to the SDWA, and EPA itself now agrees that those provisions were promulgated through an unlawful process. Reprinted courtesy of Ashleigh K. Myers, Pillsbury, Amanda G. Halter, Pillsbury and Jillian Marullo, Pillsbury Ms. Myers may be contacted at ashleigh.myers@pillsburylaw.com Ms. Halter may be contacted at amanda.halter@pillsburylaw.com Ms. Marullo may be contacted at jillian.marullo@pillsburylaw.com Read the full story...

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The Architects Who Dream of a New Stone Age

October 26, 2026 — Jennifer Hahn – Bloomberg
Most of the world’s longest-standing buildings have one thing in common: They are made from stone. Still, you’d be hard-pressed to find this civilization-outlasting material as a structural element in modern construction. Many stone buildings are imposters: thin veneers of limestone or granite disguising concrete and steel skeletons. In its day job as Earth’s crust, stone is currently holding up entire cities, countries and continents. But it’s rarely used to its full potential as a load-bearing material that can be stronger than concrete. Read the full story...
Reprinted courtesy of Jennifer Hahn, Bloomberg

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The GKN Aerospace Chemical Release and the Laws Designed to Address It

July 06, 2026 — Sean M. Sherlock - Snell & Wilmer
On May 21, 2026, a 34,000-gallon storage tank at the GKN Aerospace facility in Garden Grove, California began leaking methyl methacrylate (MMA), a volatile and highly flammable industrial chemical used to manufacture high-strength acrylic plastics. GKN Aerospace makes advanced military and commercial transparencies, such as aircraft canopies, windshields, cabin windows, bullet-resistant glass, and spacecraft windows. In polymer chemistry lingo, MMA is known as a monomer. Monomers are like individual links to a chain. Under the right conditions they link up (react) with each other to form long-chained polymers, or plastics. MMA is an unstable monomer that requires controlled storage conditions to avoid setting off a polymerization (chain) reaction. According to early reports, the MMA tank at GKN Aerospace overheated. The cause of the overheating is not yet clear, but the overheating may have created conditions enabling the MMA to initiate polymerization, which in turn generated heat, which in turn generated pressure, activating the tank’s pressure-relief system and releasing MMA vapor into the atmosphere. Concerns about a runaway reaction, massive release, and explosion led the Orange County Fire Authority to order evacuation of approximately 40,000 residents and closure of thirteen schools. Read the full story...
Reprinted courtesy of Sean M. Sherlock, Snell & Wilmer
Mr. Sherlock may be contacted at ssherlock@swlaw.com

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Colorado’s New Mechanic’s Lien Law: Bigger Claims, Stronger Protections, and New Risks for Owners and Contractors

October 12, 2026 — David McLain - Colorado Construction Litigation Blog
On April 6, 2026, the same day that the Colorado Supreme Court issued its decision in Ralph L. Wadsworth Construction Company, LLC v. Regional Rail Partners, Governor Jared Polis signed Senate Bill 26-074 into law. The legislation, which took effect on August 12, 2026, clarifies the amounts that may be included in mechanic’s liens and public construction payment claims, as well as the circumstances under which those claims may be considered excessive. While the timing of the Supreme Court’s decision and the Governor’s approval of SB 26-074 is noteworthy, the legislation has implications extending beyond the public works claims addressed in Wadsworth. Most significantly, it expressly addresses disputed and unliquidated amounts, including delay and disruption costs, in mechanic’s liens filed against private construction projects. Read the full story...
Reprinted courtesy of David McLain, Higgins, Hopkins, McLain & Roswell, LLC
Mr. McLain may be contacted at mclain@hhmrlaw.com

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Lewis Brisbois Partner and National Trial Team Member Ian B. Lane Elected President of ABOTA’s Southern New York Chapter

October 20, 2026 — Lewis Brisbois
Lewis Brisbois is pleased to announce that New York Partner Ian B. Lane, a member of the firm’s National Trial Team, has been elected president of the Southern New York Chapter of the American Board of Trial Advocates (ABOTA) for the 2027-2028 term. In this role, Mr. Lane will help lead the organization's efforts to promote excellence in trial advocacy, to foster professionalism within the legal profession, and to advance the chapter's educational, professional, and public service initiatives. Lewis Brisbois has nearly 40 ABOTA members across the country. "I am deeply honored by the confidence my colleagues have placed in me," said Mr. Lane. "ABOTA plays a vital role in preserving the right to trial by jury and promoting the highest standards of professionalism, civility, and advocacy. I look forward to working with our members to advance those goals, support the development of the next generation of trial lawyers, and strengthen the important role of the civil justice system." Read the full story...
Reprinted courtesy of Lewis Brisbois

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Louisiana Enacts Important Tort Reform Legislation

May 12, 2026 — Lee M. Peacocke & Benjamin Perkins - Lewis Brisbois
The Louisiana legislature enacted tort reform legislation in 2025 to address the increasing cost of insurance in Louisiana and to provide some predictability to the Louisiana legal system. While our colleagues, Jenny Michel and Jennifer Kretschmann, have provided an excellent and comprehensive analysis of the legislation in their article entitled “Louisiana State Legislature 2025 Regular Session: Tort Reform - Acts & Vetoed Insurance Bill,” which can be found here, this article examines the anticipated impact of the tort reform legislation on personal injury trials in federal and state courts in Louisiana. The most significant reform involves the institution of a modified defense of contributory negligence, which went into effect on January 1, 2026. Since 1996, Louisiana had operated as a pure comparative fault state; the liability of each party whose fault caused damages was to be allocated among the respective parties based upon their appropriate percentage of fault, regardless of the legal theory of liability asserted against each party. Thus, a plaintiff 55 percent at fault could recover 45 percent of their damages from the liable defendants. The 2025 Tort Reform Amendments now prohibit a plaintiff in a personal injury action from recovering any damages if they are found to be 51 percent or more at fault for their damages. The 55 percent at-fault party in the example above is now prohibited from recovering any damages from any party. Importantly, this new legislation now requires the trial court to instruct the jury that if they find a plaintiff to be more than 50 percent at fault, then the plaintiff will not recover any damages. Reprinted courtesy of Lee M. Peacocke, Lewis Brisbois and Benjamin Perkins, Lewis Brisbois Mr. Peacocke may be contacted at Lee.Peacocke@lewisbrisbois.com Mr. Perkins may be contacted at Benjamin.Perkins@lewisbrisbois.com Read the full story...

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Structural Engineer Claims Reinforcement Was Never Installed on Troubled NYC Tower

September 01, 2026 — Bryan Gottlieb - Engineering News-Record
New York City has expanded its investigation into the structural failure at the former Pfizer headquarters tower in Midtown Manhattan as the Dept. of Investigation confirmed a parallel inquiry and the Dept. of Buildings directed the property owner to retain third-party engineering oversight. Read the full story...
Reprinted courtesy of Bryan Gottlieb, Engineering News-Record
Mr. Gottlieb may be contacted at gottliebb@enr.com

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Rogue AI — Is Your Company Prepared?

September 28, 2026 — Michael S. Levine - Hunton Insurance Recovery Blog
The recent wave of "rogue AI" incidents should be a wake-up call for every business leader and risk manager paying attention. Recent accounts document a sobering reality: AI systems from multiple leading AI developers have each escaped controlled testing environments and caused real-world harm—compromising outside infrastructure, exploiting third-party vulnerabilities, and even canceling another person's reservation to help a user jump a waitlist. These aren't hypotheticals from a sci-fi movie. They happened this summer. Read the full story...
Reprinted courtesy of Michael S. Levine, Hunton Andrews Kurth LLP
Mr. Levine may be contacted at mlevine@hunton.com

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