Afghan National Army Base Design The first contractor in Afghanistan assisting the Corps in rebuilding the ANA 
Alternate Airstrip Location Study, Nain, Labrador Designing an airport on Canada’s rugged northeastern coast 
Ammunition Plant Decontamination Completing soil excavation more than one year ahead of the original U.S. Army schedule 
Ballistic Missile Defense Testing Supporting the Missile Defense Agency headquarters as one of its largest contractors 
Cameco Key Lake Revitalization, Canada Renewing Key Lake uranium mill to achieve significant operational and reliability improvements 
CERCLA Education Center Training Assisting the U.S. EPA in training government hazardous waste site managers 
Cheyenne Mountain Waste Management Helping the U.S. Air Force optimize its environmental stewardship programs 
Chicago Airports Environmental Support Providing compliance and support services to O'Hare and Midway 
Chinchan, Contonga, and Huallanca Mines, Peru Providing tailings management for one of the world's largest zinc producers 
Creative Traffic Solutions for Massachusetts' Historic Burgin Parkway Delivering creative traffic solutions in a complex urban environment 
Critical Infrastructure Security Protecting dams and powerhouses at large reservoirs and hydroelectric plants 
Ely Energy Center Permitting Assistance Providing full air permitting support for the largest power generation project in Nevada 
Emergency Response and Preparedness Services Supporting the U.S. EPA's Superfund Technical Assessment and Response Team 
Environmental Permitting Support for Uranium Mines Supporting Denison Mines' U.S. and Asian operations 
EPCM Services for Unique Pilot Plant Installation Helping Alcan implement a first-of-its kind technology for spent pot lining 
Certifying emissions from registered facilities in California through 2008 
Hawaiian Marine National Monument Plan Supporting the establishment of the largest marine conservation area in the world 
Homeland Security Planning for CA County Developing a plan for emergency response, risk management, and contingency programs 
In-Plant Services for Carol Lake Plant and Mine Managing Iron Ore of Canada's engineering program needs 
Indian Ocean Tsunami Warning System Helping governments and communities detect and prepare for tsunamis 
Iraq Coalitions Munitions Clearance Providing trained UXO and munitions experts at sites across Iraq 
Izok Project: Arctic Transportation and Water Services Providing development stage arctic infrastructure and water services 
Kennedy Space Center Skeet Range Remediation Treated approximately 20,000 cubic yards of lead-contaminated soil 
Landfill Cleanup for Superfund Site Completing all design engineering work within six months and $150,000 under budget 
Mackenzie Valley Highway Extension, Canada Providing reliable, year-round transportation access to northern communities 
Manitoba Hydro Engineering and Environmental Services Project management and engineering services for the province's major energy utility 
Maple Ridge Wind Energy Program Helping ensure 25% of New York's energy is produced by renewable technologies by 2013 
Navy Resource Efficiency Management Managing some of the most recognized energy management programs in the federal government 
Niskayuna School District Improvements Improving infrastructure at elementary, middle, and high schools 
Northeast Gateway Energy Bridge Deepwater Port Services for the second licensed deepwater port in the U.S. 
Nuclear Facilities License Renewal Successfully supporting license renewal initiatives at 65 nuclear power sites in the U.S. 
Nunavik Airports, Ministère des Transports du Québec Electrical engineering services for airports in Quebec’s northern region 
Okavango River Basin Management Project Helping three African countries maintain an important shared resource 
On-Call Transportation Services Traffic engineering, design and review services for the MassDOT Highway Division 
Organic Solid Waste Management Organizing one of the largest organics management studies in the U.S. 
Orphaned Mine Site Rehabilitation and Implementation Mitigating safety, health, and environmental concerns at the Sherridon orphan mine site 
Panama Canal Watershed Biodiversity Conservation Restoring and protecting the Panama Canal Watershed 
Philippines Coastal Resource Management Improving fishery and coral reef habitat management strategies 
Port Analysis for Offshore Wind Energy Development Identifying Potential Facilities in Massachusetts 
Port St. Lucie Water Treatment Plant Designing a Reverse Osmosis plant for the fastest-growing city in the U.S. 
Helping communities prepare for the challenges faced by the public health sector 
Roche Bay Iron Ore Mine Project Providing full service engineering and environmental services for a remote mining project 
San Diego School Resource Conservation Increasing recycling and energy efficiency at District schools 
Satellite Navigation System Support Making aviation flight safer, more efficient, and more cost-effective 
Second Line of Defense, Port of Antwerp Supporting efforts to enhance international nuclear safety in Belgium 
Siting Wind Farms in Afghanistan Selecting locations for future wind energy development in a remote area 
Conducting a thorough assessment of all aspects of a solar farm’s operations 
Multi-phased services for a mixed-used development at a former Naval air station 
Suffolk County Community College Quad Design Revealing and creating a new functional space for learning 
Surface Water Quality Monitoring Information System Providing full software development support for environmental quality monitoring 
Syracuse High School Athletic Renovations Improving athletic facilities for a safer, more enjoyable sports experience 
Tampa Expressway Collapse Geotechnical Investigation Recommending modifications to a high-profile viaduct project 
Tetra Tech's EnviroManager™ Software Implementing and managing a dynamic ISO 14001-based Environmental Management System 
Tibbitt to Contwoyto Winter Road Innovative ice engineering and geotechnical services for the world’s busiest heavy-haul ice road 
Toronto Hydro Infrastructure Improvements Helping to upgrade Canada's largest municipal electricity distribution system 
Traffic Operations and Analysis Network Model Creating a first-of-its-kind planning tool for the City of Boston 
Providing visitors with an up-close look at the history of the Mississippi River 
Waste Disposal Facility Characterization Studying the effects of sodium sulfate tailings on groundwater 
White River First Nation Water System Improvements Providing safe, reliable water to a remote community in the Yukon 
World-class Biosolids Incinerator Designing the cleanest burning, most advanced municipal system in the U.S.
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