U.S.Department of Energy contractor CH2M Hill Plateau Remediation Co. has partneredwith Richland-based Polestar Technical Services to further clean up the CentralPlateau and along the Columbia River.DOE’sOffice of Small and Disadvantaged Business Utilization recently approved amentor-protégé agreement between CHPRC and Polestar, a small woman-ownedbusiness.To help provide a level playing field for...