Soil and Groundwater Remediation (2020 DOE transition): Difference between revisions

* EM has successfully treated 23 billion gallons of groundwater at the [[Hanford Site]] in Washington state using systems located along the Columbia River and at the Site’s Central Plateau. The systems along the river treat approximately 1 billion gallons per year. In FY2020, Hanford has removed 30 tons of contaminated soil from areas near the Columbia River.

* EM has successfully treated more than 4 billion gallons of groundwater to remove trichloroethylene (TCE) contamination at the Paducah site in Kentucky. EM has also made progress in tackling the TCE contamination source term by installing systems and conducting projects that have removed almost 8,000 gallons of TCE from soil and groundwater at the site.

* EM has been successfully mitigating a chromium groundwater plume using pump-and-treat systems at the [[Los Alamos National Laboratory]] in New Mexico. This interim measure is successfully keeping the chromium from migrating off site.

* EM has made significant soil and groundwater cleanup progress utilizing an area completion approach at the Savannah River Site in South Carolina. To date, work has been completed at the Site’s T, M, P, and R areas. In 2020, the Department recognized the successful cleanup of coal ash-contaminated land, which was completed $8 million under budget. This project received DOE’s Project Management Excellence Award. EM has also removed more than 1 .6 million pounds of non-radioactive material from groundwater at the site .

One of EM’s more visible soil-and-groundwater remediation efforts is the cleanup of the [[Energy Technology Engineering Center]] (ETEC) in California. EM is responsible for the cleanup of soil, groundwater, and building demolition in Area IV and the Northern Buffer Zone (NBZ) at the ETEC site, located at Santa Susana Field Laboratory (SSFL).  

* Contaminated debris, likely from legacy DOE activities in the area, has been discovered on property being privately developed for housing. NNSA conveyed the property to Los Alamos County following the completion of cleanup activities in an adjacent former solid waste management unit. This property is known as the Middle DP Road Site (MDPR Site).

* EM currently operates a network of 35 monitoring, extraction and injection wells at the [[Los Alamos National Laboratory]] to characterize a chromium plume and contain its movement, as part of an interim measure. The plume has responded positively to the interim measure, but the Department owes a final plan to the state of New Mexico as part of a Consent Order.  

* The chromium plume interim measure was initially put on hold due to schedule delays as a result of COVID-19 but has been restarted as part of Phase 1 work scope.