US-based Tetra Tech has won a five-year contract worth $62m to support the US Environmental Protection Agency (EPA) Office of Wastewater Management in protecting and restoring the nation's waters and watersheds.

Under the contract, Tetra Tech will support EPA’s expanding programmatic responsibilities under the Clean Water Act.

Tetra Tech will provide technical expertise to EPA as it utilizes the watershed approach to address challenging water pollution problems, promote the use of innovative technologies, and address the nation’s growing wastewater infrastructure needs.’

The company said that this single-award contract is 45% larger than the predecessor contract that Tetra Tech held.

EPA’s Office of Wastewater Management oversees a range of programs contributing to the well-being of the nation’s waters and watersheds.

Tetra Tech is a provider of consulting, engineering, program management, construction, and technical services addressing the resource management and infrastructure markets.