Parsons Receives Federal Approval From US DOW Environmental Security Technology Certification Program And Defense Innovation Unit For Remediation Of PFAS Impacted Soil

• Parsons Corporation received a Success Memo from the U.S. Department of War’s Environmental Security Technology Certification Program (ESTCP) and Defense Innovation Unit (DIU) for removing PFAS from soil across the United States.
• A Success Memo is similar to a sole source contract in that it enables Government buyers to pursue follow-on production contracts without additional competitive procedures.
• Parsons’ patented Thermal Conduction Heating (TCH) technology quickly removes PFAS to below laboratory reporting limits from impacted soil, offering a fast and effective on-site solution.
• This approval positions Parsons to support government-led PFAS cleanup efforts with a proven remediation solution.

CHANTILLY, Va., Oct. 21, 2026 (GLOBE NEWSWIRE) -- Parsons Corporation (NYSE:PSN) announced today that it received federal approval from the U.S. Department of War’s (DOW) Environmental Security Technology Certification Program (ESTCP) and Defense Innovation Unit (DIU) for the remediation of per- and polyfluoroalkyl substances (PFAS) impacted soil. Now any federal agency can quickly leverage Parsons’ patented thermal conduction heating (TCH) technology, accelerating PFAS cleanup projects.

PFAS are persistent chemicals that can migrate through soil and groundwater, creating concerns for surrounding ecosystems and nearby communities. As public awareness and regulatory attention continue to grow, fast and effective cleanup is increasingly important to reduce long-term risk, protecting community health, and restoring confidence in impacted sites.