ORNL Melton Valley Soils and Sediments Remediation

As a teaming subcontractor to BJC, RSI provided project management and technical support for remediation of contaminated soils and sediment within the Melton Valley Closure Project at ORNL. Scope of this project included the following:

• Excavation/removal of surface impoundments at the High Flux Isotope Reactor (3,000 cy) and Homogeneous Reactor Experiment Pond (5,400 cy) for disposal at the Environmental Management Waste Management Facility;
• Excavation/removal of eight contaminated soil sites (15,800 cy) for disposal as contour fill beneath Melton Valley caps; excavation/removal of hot spots associated with the White Oak Creek floodplain;
• Stabilization of inactive waste lines (low level waste and process waste system) through pipeline and vault/pit grouting (over 20,000 LF), pipeline removal (500 ft), pipeline capping; and
• Final verification surveys that include sampling at excavations, walkover surveys and sampling of areas outside Melton Valley caps (~800 acres), and calculation of post remediation risk levels.

As the Subcontract Technical Representative for this work, RSI provided daily field oversight of subcontractors, prepared project progress reports, convened weekly subcontractor schedule meetings, and provided interface with Project Controls and Procurement on subcontract submittals, schedule, and costs associated with direct work, change notices, and modifications to the contract.