HFA has designed, permitted, installed, and operated numerous systems for the reclamation of contaminated land including: vapor extraction systems (thermal oxidation, catalytic oxidation, and carbon adsorption); groundwater treatment systems (pump-and-treat and air stripping); air sparge systems; ex situ bioremediation systems; multi-phase extraction systems; and intrinsic bioremediation verification systems. HFA has an experienced, qualified staff including mechanical, environmental, and electrical engineers experienced in all areas of remedial design and installation.