Tetra Tech has secured a $14m design and build contract to help the Orlando Utilities Commission (OUC) expand its Stanton Energy Center coal combustion product landfill in Orlando, US.

Under the design and build contract, Tetra Tech will offer all project management, field exploration, design, permitting, construction, and construction quality assurance services.

The expansion of Stanton Energy Center coal combustion product will allow OUC to manage wastes from its onsite power plant in anticipation of the proposed US Environmental Protection Agency rule for coal combustion residuals, as developed subsequent to the Tennessee Valley Authority Kingston ash impoundment failure in 2008.

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