Margit Larrieu

Margit Larrieu serves as a Contracting Officer for the Office of River Protection within the Department of Energy, where she manages complex procurement actions critical to the safe treatment and immobilization of radioactive waste at the Hanford Site. Her role centers on securing technical services that support the commissioning and operation of the Waste Treatment and Immobilization Plant, as well as the stabilization of legacy tank waste. She oversees the acquisition of professional, scientific, and engineering services essential to nuclear safety, environmental remediation, and regulatory compliance, ensuring alignment with DOE’s mission to protect the Columbia River from contamination. Her acquisitions are strategically aligned with long-term technical objectives and federal nuclear waste management mandates. Larrieu works with a diverse array of professional service providers, primarily engineering firms, scientific consultants, and R&D organizations with deep expertise in nuclear waste processing, radiological engineering, and environmental systems integration. While no single contractor dominates her portfolio, her contracting patterns reflect consistent engagement with vendors possessing specialized technical capabilities in high-hazard environments. She fosters collaborative, performance-based relationships with contractors who demonstrate proven experience in DOE’s nuclear infrastructure programs and adherence to stringent safety and compliance standards. Her procurement strategy reflects a strong preference for open competition, with 100% of her acquisitions designated as non-set-aside. This indicates a focus on technical merit and capability over socioeconomic categorization, prioritizing mission-critical expertise over targeted small business set-asides. While she does not routinely utilize 8(a), HUBZone, or SDVOSB programs, her approach ensures that all vendors—regardless of size—are evaluated on technical competence and past performance in high-stakes nuclear operations. Larrieu’s primary procurement focus lies in NAICS 541690 (Other Scientific and Technical Consulting Services) and 541990 (All Other Professional, Scientific, and Technical Services), with significant activity in engineering services (541330) and physical sciences R&D (541712). She procures specialized services including nuclear process design, waste form characterization, systems integration, and regulatory support, requiring deep domain knowledge in radioactive material handling, vitrification technology, and environmental monitoring systems.