Oweis Engineering Inc. (OEI) was retained by Kaplan Companies (Kaplan) to perform a geotechnical investigation for the construction of six townhouse buildings development in Hackensack, New Jersey. OEI’s services included: Performed a Subsurface Exploration Program. Conducted a Laboratory Testing Program. Evaluated subsurface conditions and prepare geotechnical engineering report including recommendations for various foundation and site stabilization options including: short timber piles founded in upper stiff soil stratum, deep steel pipe pile foundation founded in dense till and site stabilization by preload and surcharge with shallow foundations.