PURCELL MISSOURI CONSTRUCTION EXPERT WITNESS
DIRECTORY AND CAPABILITIES

EPA, Maryland Sue DC Water Over Massive Potomac River Sewage Spill

May 14, 2026 — Jim Parsons - Engineering News-Record
The state of Maryland and the federal government have filed separate lawsuits against the District of Columbia Water and Sewer Authority (DC Water), both alleging that the agency’s failure to address longstanding deterioration in the Potomac Interceptor contributed to a weeklong release of more than 240 million gallons of raw sewage into the Potomac River this past January. Read the full story...
Reprinted courtesy of Jim Parsons, Engineering News-Record
ENR may be contacted at enr@enr.com

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D.C. Circuit Upholds EPA’s CERCLA Hazardous-Substance Designations for PFAS as State-Law Settlements Highlight Expanding Liability Landscape

September 15, 2026 — Ashleigh K. Myers, Amanda G. Halter, Jillian Marullo & Anthony B. Cavender - 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 the 2024 designation by the U.S. Environmental Protection Agency (EPA) of perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA or Superfund). (See Chamber of Commerce of the United States of America, et al. v. EPA, No. 24-1193 (D.C. Cir. Aug. 18, 2026).) The decision leaves EPA’s PFOA and PFOS hazardous substance designations in place and provides guidance on the scope of EPA’s authority to make future hazardous substances designations under CERCLA Section 102(a). The decision also likely resolves a challenge to the rule that has spanned two presidential administrations. After taking office, the Trump administration had obtained an abeyance of the litigation challenging the Biden-era rule while EPA reconsidered its position. In September 2025, EPA informed the court that it had decided to retain the designations, while signaling that it would work with Congress and industry to address CERCLA liability concerns for “passive receivers.” The litigation then resumed, with the current Administration defending the rule. Reprinted courtesy of Ashleigh K. Myers, Pillsbury, Amanda G. Halter, Pillsbury, Jillian Marullo, Pillsbury and Anthony B. Cavender, 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 Mr. Cavender may be contacted at anthony.cavender@pillsburylaw.com Read the full story...

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Hidden Risks Behind Today’s Stadium Construction Boom

July 20, 2026 — Thomas Strong, Andrew Canning & Marc Gnesin - Construction Executive
After a decade-plus lull, professional sports leagues, universities and municipalities are once again spending heavily on new stadiums and major renovations. In the NFL alone, multiple marquee projects are underway or planned, representing more than $10 billion in facilities and mixed-use entertainment districts, rivaling or exceeding the scale of development during the last stadium-build cycle of the early 2000s. Beneath the excitement of architectural ambition and civic pride lies a risk landscape that has fundamentally changed since the last wave of stadium construction. Teams, cities and contractors that rely on outdated assumptions may find themselves exposed to cost overruns, schedule delays and liabilities that are far more difficult to unwind once construction is underway. Reprinted courtesy of Construction Executive, a publication of Associated Builders and Contractors. All rights reserved. Read the full story...

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Chambers USA 2026 Recognizes Multiple Snell & Wilmer Attorneys and Practices

August 11, 2026 — Snell & Wilmer
PHOENIX – Snell & Wilmer is pleased to announce that its attorneys have received 57 individual recognitions in their respective fields, by Chambers USA: America’s Leading Lawyers for Business 2026. These prestigious rankings are driven by independent interviews with clients of the firm and members of the legal community. Read the full story...
Reprinted courtesy of Snell & Wilmer

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ACEC Research Institute Report: Real Risk of AI Isn’t Technology. It’s the Org Chart.

September 01, 2026 — ACEC Research Institute
WASHINGTON (August 19, 2026) – The ACEC Research Institute today released Leading Through AI Risk: The Enterprise Framework for Engineering Firm Leaders, a new study finding that the most significant risks artificial intelligence poses to engineering firms are organizational rather than technological, and that firms treating AI as an IT initiative are managing the wrong issue. The report, part of the Institute’s yearslong Firm of the Future initiative, combines an extensive literature review with in-depth interviews of 21 leaders drawn from engineering firms, public infrastructure owners, technology vendors, insurance and legal professionals, licensing and regulatory agencies, and AI consultants. The report groups AI risk into eight interconnected domains:

• technical reliability and model risk
• professional liability and standard of care risk
• data governance, privacy, and intellectual property risk
• organizational and workforce risk
• ethical, regulatory, and reputational risk
• operational and cybersecurity risk
• financial and business model risk
• strategic leadership and enterprise governance risk

The last serves as the integrating domain through which firms coordinate responsible AI adoption enterprise wide. The report stresses that firms do not experience these risks one at a time. Weak oversight may create legal liability. Workforce gaps may affect quality assurance. “Understanding these interactions,” the study notes, “is often more important than understanding individual risks independently.” About the ACEC Research Institute The ACEC Research Institute is the independent research arm of the American Council of Engineering Companies (ACEC). Its mission is to fund and deliver research to equip the engineering industry with actionable intelligence on the issues critical to its success. Learn more at www.acecresearchinstitute.org.

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Actual Controversy Without Actual Exhaustion: California Supreme Court Allows Declaratory Relief and Bad Faith Claims Against Excess Insurers

August 24, 2026 — Kyle A. Rudolph - Saxe Doernberger & Vita, P.C.
California courts were previously split on the issue of whether an insured may bring declaratory relief claims against excess insurers prior to the exhaustion of underlying insurance. Some California courts held that the actual exhaustion of underlying insurance was necessary, whereas other courts allowed for these types of claims to proceed.[1] Recently, the California Supreme Court addressed this split of authority and, in doing so, handed down a significant win for policyholders. In Fox Paine & Company, LLC, et al. v. Twin City Fire Insurance Company et al., the Court held that insureds may proceed with bringing forth viable declaratory relief and bad faith claims against excess insurers prior to the exhaustion of underlying insurance.[2] A summary of the Court’s opinion is provided below. Read the full story...
Reprinted courtesy of Kyle A. Rudolph, Saxe Doernberger & Vita, P.C.
Mr. Rudolph may be contacted at KRudolph@sdvlaw.com

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Legal 500 US Ranks Hunton’s Insurance Coverage Team Among Top Policyholder Practices in 2026 Guide

July 06, 2026 — Hunton Insurance Recovery Blog
Hunton’s insurance coverage practice was once again recognized among the nation’s top policyholder insurance practices, receiving a Band 2 national ranking in the 2026 United States Edition of The Legal 500 for Insurance: Advice to Policyholders. The Legal 500 recognizes firms solely based on merit through numerous factors including client feedback and peer input. Bolstering the team’s national recognition, several coverage lawyers received individual accolades: special counsel Lorelie “Lorie” S. Masters was named to The Legal 500’s Hall of Fame; team head Syed S. Ahmad and partner Michael S. Levine were named Leading Lawyers; and partners Andrea DeField and Latosha M. Ellis were named Next Generation Partners. In addition, partners Walter J. Andrews, Lawrence J. Bracken II, and Koorosh “KT” Talieh were recognized as Key Lawyers on the team. Read the full story...
Reprinted courtesy of Hunton Andrews Kurth LLP

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Contractor Dispute Resolution Framework and Prevention

July 06, 2026 — Construction Executive
WHAT DEFINES A CONTRACTOR DISPUTE RESOLUTION FRAMEWORK A contractor dispute resolution framework is a structured system of contractual terms, governance processes and escalation pathways designed to prevent, manage and resolve conflicts between contracting parties with minimal disruption to cost, schedule and performance. The framework operates as both a preventive control and a corrective mechanism. Preventive elements establish clarity in scope, expectations and accountability before work begins. Corrective elements define how disagreements are identified, documented, escalated and resolved once they arise. Reprinted courtesy of Construction Executive, a publication of Associated Builders and Contractors. All rights reserved. Read the full story...

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