WARRENSBURG MISSOURI CONSTRUCTION EXPERT WITNESS
DIRECTORY AND CAPABILITIES

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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Contractor Entitled to Defense Under Subcontractor’s Policy

March 10, 2026 — Tred R. Eyerly - Insurance Law Hawaii
The appellate court affirmed the trial court’s grant of summary judgment to the contractor’s insurer finding that the sumcontractor’s insurer had a duty to defend the contractor. Navigators Specialty Ins. Co. v. TBR Construction, LLC, et al., 2025 Ill. App. Unpub. LEXIS 2177 (Ill. Ct. App. Dec. 3, 2025). Greenscape Homes, LLC was the general contractor for a residential development. Greenscape hired TBR Construction, LLC as a carpentry-framing subcontractor pursuant to a “Trade Contractor Agreement.” The Trade Agreement required TBR to name Greenscape as an additional insured. TBR was insured by Utica. Greenscape was insured by Navigators. Read the full story...
Reprinted courtesy of Tred R. Eyerly, Damon Key Leong Kupchak Hastert
Mr. Eyerly may be contacted at te@hawaiilawyer.com

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Lawmakers Vote to Reauthorize Programs to Support Water Quality, Coastal Protection

April 20, 2026 — Pam McFarland - Engineering News-Record
The U.S. House of Representatives has passed a package of 14 bills that includes measures to reauthorize several U.S. Environmental Protection Agency programs to protect and restore critical water ecosystems, expand access to broadband, reduce regulatory requirements on airport projects and programs and lower costs of federal buildings. Read the full story...
Reprinted courtesy of Pam McFarland, Engineering News-Record
Ms. McFarland may be contacted at mcfarlandp@enr.com

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Lost in Translation: AEC Tech’s Missing Role

May 12, 2026 — Aarni Heiskanen - AEC Business
I once visited a construction site where the contractor’s headquarters had commissioned a tech company to build an on-site quality-inspection application. The developer had admitted to the site engineer that they had never set foot on a construction site before. The engineer showed me what he was actually using: his own phone camera and an Excel sheet. The new app did not map to how work actually happened on site. This is not an isolated story. The vendor builds something technically coherent but operationally disconnected. The client, somewhere up the chain, had fallen in love with the idea of the solution before anyone had built an honest business case for it. The result is a tool that gets demonstrated at a board meeting but isn’t used in the field. Read the full story...
Reprinted courtesy of Aarni Heiskanen, AEC Business
Mr. Heiskanen may be contacted at aec-business@aepartners.fi

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New Report Outlines Roadmap for Construction Jobsites to Cut Carbon Emissions by 2040

April 20, 2026 — PCL Construction
Denver, Colo., April 16, 2026 (GLOBE NEWSWIRE) -- A new industry report outlines five practical steps that, when implemented together, could reduce construction jobsite emissions by up to 75% without compromising cost, schedule or performance. Grounded in real operational data from 617 construction projects across the U.S. and Canada, Growing and Greening Canadian Construction represents the most comprehensive sector-wide analysis of jobsite emissions conducted to date. The report was developed through a collaboration among leading general contractors, including PCL Construction, in partnership with the Transition Accelerator, an organization that drives projects, partnerships, and strategies to promote economic competitiveness in a carbon‑neutral world. The report focuses specifically on emissions from construction jobsite activities and reflects a shared commitment to advancing practical, scalable solutions for the industry. About PCL Construction PCL is a group of independent construction companies that operates throughout the United States, Canada, the Caribbean and Australia. As one of the largest contracting organizations in North America, PCL completes more than $9.9 billion USD in work annually, building projects that shape communities. The company’s 100% employee ownership model fuels a culture of commitment for clients in the buildings, civil infrastructure, heavy industrial and solar markets. With a strategic presence in more than 30 major centers, PCL’s leadership teams consistently drive innovation and set new benchmarks for excellence, bringing unparalleled skill to every project. Watch us build at PCL.com. About the Transition Accelerator The Transition Accelerator works with 300+ partner organizations across Canada to build out pathways to a prosperous low-carbon economy and avoid costly dead-ends along the way. We help governments and industry harness the global shift towards clean growth to secure permanent jobs, abundant energy, and strong regional economies across the country. By connecting systems-level thinking with real-world analysis, we’re enabling a more affordable, competitive, and resilient future. Read the full story...

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White and Williams LLP Secures $42.4 Million Award for Ventana DBS LLC in Philadelphia Marriott Construction Litigation

July 27, 2026 — Craig O'Neill, Lindsay Liebman, Kristen Nichols Wright, Zachary Roth & William Taylor - White and Williams
White and Williams LLP's Construction and Surety Practice attorneys secured a significant victory for client Ventana DBS LLC in a complex commercial construction dispute before the Philadelphia Court of Common Pleas, Commerce Division. The trial team, led by Bill Taylor, retired Partner, and Craig O'Neill, Co-Chair of the Construction and Surety Practice Group, with support from Lindsay Liebman, Counsel, Zachary Roth, Partner, Kristen Nichols Wright, Associate, and Sue Ferrante, Legal Secretary, obtained a $42.4 million award on Ventana's claims for unpaid work, delay costs, CASPA penalties and interest, attorneys’ fees and other project-related costs arising from the construction of the Marriott W/Element Hotel Project in Philadelphia. To achieve this result, the White and Williams team managed an extensive discovery period over the course of four-years of litigation, conducted over sixty depositions, participated in court-ordered mediation and arbitration proceedings, and successfully represented Ventana during a bifurcated trial that spanned over the course of a year. Reprinted courtesy of Craig O'Neill, White and Williams, Lindsay Liebman, White and Williams, Kristen Nichols Wright, White and Williams, Zachary Roth, White and Williams and William Taylor, White and Williams Mr. O'Neill may be contacted at oneillc@whiteandwilliams.com Ms. Liebman may be contacted at liebmanl@whiteandwilliams.com Ms. Wright may be contacted at wrightk@whiteandwilliams.com Mr. Roth may be contacted at rothz@whiteandwilliams.com Mr. Taylor may be contacted at taylorw@whiteandwilliams.com Read the full story...

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Seventh Circuit, With an Assist From the Illinois Supreme Court, Finds That “Pollution Exclusion” Bars Coverage For Emissions Allowed Under Regulatory Permit

April 20, 2026 — Jason Taylor - Traub Lieberman Insurance Law Blog
In Griffith Foods Int’l Inc. v. National Union Fire Ins. Co. of Pittsburgh, PA, 24-1217 & 24-1223 (7th Cir. Mar. 13, 2026), the Seventh Circuit addressed the meaning and scope of a pollution exclusion in a standard-form commercial general liability insurance policy for underlying injuries caused by ethylene oxide (EtO) emissions. The insurance dispute arose out of underlying tort litigation involving bodily injury claims, including cancer, allegedly caused by emissions of ethylene oxide over a 35-year period from 1984 through 2019 by Griffith Foods International and later Sterigenics U.S. The pollution exclusion at issue generally barred coverage for “bodily injury” arising out of the discharge, dispersal, release or escape of smoke, vapors, soot, fumes, acids, alkalis, toxic chemicals, or other irritants, contaminants or pollutants. Interpreting similar exclusions, the Illinois Supreme Court has previously held that the standard CGL pollution exclusion bars coverage for bodily injuries caused by traditional environmental pollution (essentially industrial emissions of pollutants), but not by more commonplace emissions (such as carbon monoxide from a residential furnace or excess chlorine in a backyard swimming pool). See American States Insurance Co. v. Koloms, 177 Ill. 2d 473 (Ill. 1997). In Griffith Foods, the District Court initially concluded that the pollution exclusion did not apply because the companies emitted EtO pursuant to a permit issued by the IEPA. The District Court reached this latter conclusion by applying Erie Insurance Exchange v. Imperial Marble Corp., 957 N.E.2d 1214 (Ill. App. Ct. 2011), an Illinois intermediate appellate court decision finding it ambiguous whether a CGL policy’s pollution exclusion barred coverage for emissions authorized by regulatory permit. Read the full story...
Reprinted courtesy of Jason Taylor, Traub Lieberman
Mr. Taylor may be contacted at jtaylor@tlsslaw.com

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Soot Constitutes Property Damage

March 17, 2026 — Tred R. Eyerly - Insurance Law Hawaii
Applying Missouri law, the Eighth Circuit affirmed the jury verdict awarding damages for the presence of soot after a fire. Maxus Metropolitan, LLC v. Travelers Property Cas. Co. of Am., 2025 U.S. App. LEXIS 29921 (8th Cir. Nov, 17, 2025). A fire destroyed Phase 6 of a multi-building apartment complex known as the Metropolitan. At the time of the fire, all six phases of the Metropolitan were at various stages of completion, including some of which were occupied by tenants. Phase 6 was still under construction. The fire caused severe damage to Phase 5. The interiors of Phases 1-4 were unaffected by the fire. Maxus Metropolitan, the owner of the complex, had a policy with Travelers which covered up to $35 million in “direct physical loss, . . or damage.” The policy also provided coverage for up to $5 million in lost business income. Read the full story...
Reprinted courtesy of Tred R. Eyerly, Damon Key Leong Kupchak Hastert
Mr. Eyerly may be contacted at te@hawaiilawyer.com

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