Tetra Tech EC, Inc. (TtEC) has performed more than 900 remediation and 300 restoration projects over the past three decades. These have included upwards of 30 sediment projects, 20 decontamination and demolition (D&D) projects, 200 landfills, and the installation of over 170 million square feet of geosynthetic liners. We have extensive experience implementing regulatory-driven projects under strict compliance with TSCA, RCRA, and CERCLA, as well as client voluntary action initiatives. We have remediated sites in all of the USEPA regions.

We have worked at both operating facilities and at remote inactive project sites; therefore, we understand how to overcome the associated challenges. TtEC has extensive experience in the screening, engineering design, pilot testing, construction, operation, and maintenance of a variety of remedial technologies.

Company-wide, TtEC has the ability to draw from thousands of experts skilled in environmental remediation; contaminated sediment dredging and capping; landfill construction, capping, and closure; facility decontamination and demolition; hazardous waste management and disposal; as well as "in situ" and "ex situ" bioremediation of contaminated soils and groundwater.