U.S. EPA Contaminated Site Cleanup Information (CLU-IN)

U.S. Environmental Protection Agency
U.S. EPA Technology Innovation and Field Services Division

Search Result

Demirkanli, D.I., N.P. Qafoku, D.L. Saunders, A.R. Lawter, M.M. Snyder, C. Bagwell, et al.
PNNL-28063, 107 pp, 2018

The 200 West Area pump-and-treat (P&T) system is a key component of the final remedy selected for the 200-ZP-1 Operable Unit (OU), and the interim remedial action selected for the 200-UP-1 OU at the Hanford Site. The facility also receives perched water, groundwater, and leachate from several other contaminated areas within the Hanford Site. Since the use of the P&T system evolved to support remediation activities in other OUs, a study was conducted to determine impacts on the 200 West aquifer where the treated water is injected. A baseline assessment using 20 samples from 3 injection wells measured important parameters such as particle size distribution, moisture content, mineral phase abundancies, pH, extractable elements and contaminants, carbon content, and bacterial types and abundance. Batch experiments were conducted using P&T effluent and representative Hanover groundwater to measure potential geochemical reactions occurring in the aquifer with the injection of P&T effluent. Planned future testing includes column experiments and reactive transport modeling to quantitatively assess aquifer impacts and system performance under the current and predicted future conditions. https://www.pnnl.gov/main/publications/external/technical_reports/PNNL-28063.pdf

The Technology Innovation News Survey welcomes your comments and suggestions, as well as information about errors for correction. Please contact Michael Adam of the U.S. EPA Office of Superfund Remediation and Technology Innovation at adam.michael@epa.gov or (703) 603-9915 with any comments, suggestions, or corrections.

Mention of non-EPA documents, presentations, or papers does not constitute a U.S. EPA endorsement of their contents, only an acknowledgment that they exist and may be relevant to the Technology Innovation News Survey audience.