Red boat

Remedial Investigation/Feasibility Study

Assisting the nation in its long-term mission to clean up National Priority Sites

The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), also known as Superfund, established the Remedial Investigation and Feasibility Study (RI/FS) process as part of a national effort to clean up hazardous waste sites. Scientists conduct remedial investigations to characterize the nature and extent of contamination at a site and determine whether site contamination presents a significant risk to human health or the environment.

For more than two decades, EAS staff have performed RI/FS at hazardous waste sites. We work with clients to characterize the nature and extent of contamination, assess risk to humans and the environment, and evaluate remedial actions. The legally defensible information EAS provides helps clients develop long-term remedial actions to reduce dangers associated with the contamination.

Split-frame sampler Remedial Investigation of Hanford Site Releases to the Columbia River

Sampling, evaluating, and reporting on surface water and pore water, sediment, and fish to measure concentrations of contaminants in aquatic media

Red boat Pore Water Sampling in Support of 100-B/C, 100-N, and 100-F Areas RI/FS

Performing the first successful pore-water sampling and groundwater upwelling mapping project in the Columbia River for the Department of Energy

Red boat Installation of Hyporheic Sampling Points (HSPs) in the 100-BC Area

Using custom-tailored technology to provide real-time in-situ groundwater upwelling verification and pump rate determinations in targeted riverbed depths.

Diver entering steel water storage tank Hanford Water Tank Storage Inspections

Leading high-risk commercial diving projects in confined spaces.