Tetra Tech has decades of experience providing environmental solutions that are both feasible for our clients and sustainable for our future. Tetra Tech is consistently recognized by Environmental Business Journal and Engineering News-Record as one of the top large businesses working in the environmental industry today. Our fully integrated range of environmental, engineering, and construction services allows us to quickly and cost-effectively address our public and private clients’ environmental issues.


Engineering News-Record magazine ranks Tetra Tech #1 in Environmental Management and Environmental Science.

Related Projects

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Tetra Tech's turn-key planning, engineering, constrction, and operations support in Orange County, California.

Engineering Support at the Prima Deshecha Landfill

Providing turn-key planning, engineering, construction, and operations support to a regional metropolitan landfill serving Orange County, California

Turf installation for the landfill capping project at Sunshine Canyon Landfill by Tetra Tech

Sunshine Canyon Landfill Area 1 Capping Project and Phase III Landfill Gas System Installation

Performing capping and landfill gas system installation in Sunshine Canyon Landfill, including geosynthetic liner installation

Blower skid and landfill gas conveyance piping at SWACO’s Franklin County Sanitary Landfill (FCSL)

SWACO Air Quality Compliance Services

Providing compliance assistance to SWACO sites subject to government regulations

Deck operations to assist UXO divers returning to the surface during chemical weapons recovery in Japan

Underwater Chemical Weapons Response and Recovery

Providing explosive ordnance disposal-qualified divers for offshore recovery of chemical weapons off the Port of Kanda, Japan

GHG Accounting Tool

Greenhouse Gas Accounting Tool for Water Sector Lending Projects

Evaluating the impact of water sector projects on greenhouse gas emissions around the world