Daramend® Reagent Used to Reduce TNT and RDX Concentrations in Soil (Pilot, Bench, and Full Scale Soil Corrective Measures)

The Army detected trinitrotoluene (TNT) and cyclomethylenetriamine (RDX) in soil near the TNT Washout Area (designated as SWMU-10), threatening the ground water for 2,500 people who depend on wells within 3 miles of the site.

Type of Site

Tooele Army Depot- TNT Washout Facility/SWMU-10


Plexus Scientific Corporation; Client: MWH Constructors, Inc. under contract to the US Army Corps of Engineers (USACE)


Tooele, Tooele County, Utah

Contaminants Treated



Approximately 10,000 yards of soil were impacted by TNT and RDX concentrations as high as 2,500 and 1,000 mg/kg, respectively. Pilot-scale soil treatment and a concurrent bench-scale treatment with Daramend® was
applied at TEAD SWMU-10 to assess field efficacy of Daramend® for composting site soils for treatment of TNT and RDX. Daramend® was added in a single dose of 3.5 wt% to soil mass upon initiating treatment of each large batch of about 3,000 cubic yards in a large sprung structure.


Plexus Scientific effectively treated soils to remediation goals of 86 mg/kg TNT and 31 mg/kg RDX in a single application cycle. Treatment of the three batches was completed in approximately five months, considerably less than the original estimate of one year with conventional composting.