Fayetteville, North Carolina
October 2020 – November 2020
Terra Nova performed this project in Fayetteville, NC which started with the abatement and demolition of three site structures. Following the demolition, Terra Nova will be removing, landfilling, and replacing approximately 800 tons of impacted soil. Following the restoration of that excavation area, Terra Nova will homogeneously mix approximately 225 cubic yards of impacted material with hydrogen peroxide using a rotary head on an excavator. Trench boxes will be used to support the mixing operation which will be advanced to a depth of 10 below grade surface and utilize 7900 pounds of hydrogen peroxide delivered in tankers and then transferred to stainless steel holding tanks. After a 48 hour reaction time, Terra Nova will install a geosynthetic material, backfill, and restore.
Insitu Chemical Oxidation (ISCO) of subsurface soils, down to 10’ below grade with hydrogen peroxide via rotary head on an excavator
Installation of trench boxes for excavation support and mixing area definition
Close coordination with project engineer regarding mix development, application and reaction times.