Key Takeaways
- A U.S. Army ERDC technical report independently validated 374Water AirSCWO’s technology, documenting 99.9993% PFAS destruction and removal efficiency in AFFF firefighting foam.
- The demonstration was conducted with Arcadis U.S., which co-authored the report, using certified EPA methods including EPA Method 1633, the TOP Assay, and OTM-45 and OTM-50 for stack emissions.
- Treated liquid effluent met U.S. EPA maximum contaminant levels for all regulated PFAS compounds, and gas-stack emissions of volatile fluorinated compounds were near zero.
- The report builds on a strategic collaboration 374Water and Arcadis announced earlier in July, aimed at pursuing federal and commercial PFAS destruction contracts.
- The U.S. Department of Defense has identified 574 military installations requiring PFAS remediation and reported stockpiles at more than 650 installations worldwide.
374Water PFAS Destruction Gets Independent Validation
374Water Inc. (NASDAQ: SCWO) announced the public release of a U.S. Army Engineer Research and Development Center technical report documenting an independently validated demonstration of the company’s AirSCWO technology destroying PFAS in aqueous film-forming foam (AFFF). The demonstration was conducted with Arcadis U.S., Inc., which co-authored the report and independently validated the results.
374Water treated AFFF concentrate at its Waste Destruction Facility in Orlando, Florida, with performance evaluated across PFAS destruction efficiency, gaseous stack emissions and treatment operating data. Sampling used certified EPA methods, with analyses cross-validated by ERDC, the Colorado School of Mines and Eurofins.
99.9993% Destruction Efficiency of 374Water AirSCWO’s Technology
The AirSCWO 6 system achieved a total PFAS destruction and removal efficiency of 99.9993%, measured by the Total Oxidizable Precursor Assay across 42 PFAS compounds, with individual PFAS destruction rates ranging from 99.994% to 100% by EPA Method 1633. Treated liquid effluent met U.S. EPA maximum contaminant levels for all regulated PFAS compounds, and detectable emissions from the gas stack totaled just 0.0005 grams per hour against a PFAS throughput of 16.6 grams per hour.
“This is exactly the kind of rigorous, independent validation that the federal market demands,” said Howard Teicher, VP, Government, 374Water. “The U.S. Army put our technology to the test on AFFF under field conditions, measured it with the most stringent methods available, and documented destruction of PFAS at 99.9993% with effluent clean enough to discharge and virtually nothing coming out of the stack.”
Foundation for a Federal PFAS Push
The report, ERDC TR-26-19, underpins a strategic collaboration 374Water and Arcadis announced earlier in July 2026 to jointly pursue federal and commercial contracts for destroying AFFF and other PFAS-impacted waste streams. The Department of Defense has identified 574 military installations requiring PFAS remediation and reported PFAS stockpiles at more than 650 installations worldwide, a market 374Water says its AirSCWO platform and regional Waste Destruction Services hub model are positioned to serve.
