INQUIP Associates is a geotechnical contractor that offers general contracting, subcontracting and technical services throughout the United States and Canada. Established in 1977, the company s installation capabilities include underground seepage barriers; cast-in-place and precast slurry walls for support of excavations; deep soil mixing; leachate collection systems; liners; pressure and jet grouting; and reactive barriers. It uses the slurry trench method of excavation for a wide range of construction, including soil-bentonite cutoff walls; cast-in-place concrete slurry walls; and biopolymer drainage and recharge trenches. The company also works directly with various general contractors, owners and engineers and provides expertise and specialized equipment. INQUIP Associates has offices in Santa Barbara, Calif.; Arlington Heights, Ill.; Seminole, Fla.; and Mclean, Va.