Tetra Tech (TTEK) has been awarded new work with the Port of LA and Port of Long Beach with an estimated  value of 25.6 million over the next 5 years with the majority of work focusing on the Clean Trucks Program, designed to reduce truck pollution at the ports by 80% by 2012.  TTEK will provide admin, technical and environmental support during the process and continues its 15 year relationship with the ports.