News Tetra Tech Awarded $43 Million Clean Water Protection Contract - 08/23/05 Tetra Tech and International Resources Group Joint Venture Awarded Indian Ocean Tsunami Warning System Development Project - 08/09/05 Tetra Tech and International Resources Group Joint Venture Wins USAID Worldwide Water Resources Contract - 10/08/04

		According to Engineering News-Record, Tetra Tech is currently the largest firm in site assessment/compliance, the fifth largest firm in hazardous waste, and the fifth largest Environmental firm in the United States.