Goat moths (Lepidoptera: Cossidae) of the Hanford Site and Hanford National Monument, Washington State

2009 ◽  
Vol 85 (4) ◽  
pp. 182-186
Author(s):  
Richard S. Zack ◽  
Peter J. Landolt ◽  
Dennis Strenge
Keyword(s):  
Washington State ◽  
Hanford Site ◽  
National Monument

Groundwater Remediation of Hexavalent Chromium Along the Columbia River at the Hanford Site in Washington State, USA

2011 ◽  
Author(s):  
Dyan L. Foss ◽  
Briant L. Charboneau
Keyword(s):  
Hexavalent Chromium ◽  
Groundwater Remediation ◽  
Columbia River ◽  
Washington State ◽  
Department Of Energy ◽  
Hanford Site ◽  
Pump And Treat ◽  
Environmental Setting ◽  
Calcium Polysulfide

The U.S. Department of Energy Hanford Site, formerly used for nuclear weapons production, encompasses 1500 square kilometers in southeast Washington State along the Columbia River. A principle threat to the river are the groundwater plumes of hexavalent chromium (Cr(VI)), which affect approximately 9.8 square kilometers, and 4.1 kilometers of shoreline. Cleanup goals are to stop Cr(VI) from entering the river by the end of 2012 and remediate the groundwater plumes to the drinking water standards by the end of 2020. Five groundwater pump-and-treat systems are currently in operation for the remediation of Cr(VI). Since the 1990s, over 13.6 billion L of groundwater have been treated; over 1,435 kg of Cr(VI) have been removed. This paper describes the unique aspects of the site, its environmental setting, hydrogeology, groundwater-river interface, riverine hydraulic effects, remediation activities completed to date, a summary of the current and proposed pump-and-treat operations, the in situ redox manipulation barrier, and the effectiveness of passive barriers, resins, and treatability testing results of calcium polysulfide, biostimulation, and electrocoagulation, currently under evaluation.

scholarly journals European Earwig,Forficula auriculariaL. (Dermaptera: Forficulidae), at the Hanford Reach National Monument, Washington State

2011 ◽  
Vol 70 (4) ◽  
pp. 441-445 ◽  
Author(s):  
Richard S. Zack ◽  
Dennis Strenge ◽  
Peter J. Landolt ◽  
Chris Looney
Keyword(s):  
Washington State ◽  
National Monument ◽  
European Earwig ◽  
Hanford Reach

scholarly journals Three-Dimensional Groundwater Models of the 300 Area at the Hanford Site, Washington State

2008 ◽  
Author(s):  
Mark D. Williams ◽  
Mark L. Rockhold ◽  
Paul D. Thorne ◽  
Yousu Chen
Keyword(s):  
Three Dimensional ◽  
Washington State ◽  
Hanford Site

scholarly journals Microbially mediated iron redox cycling of subsurface sediments from Hanford Site, Washington State, USA

2020 ◽  
Vol 546 ◽  
pp. 119643 ◽  
Author(s):  
Michael E. Bishop ◽  
Hailiang Dong ◽  
Paul Glasser ◽  
Brandon R. Briggs ◽  
Martin Pentrak ◽  
...  
Keyword(s):  
Redox Cycling ◽  
Washington State ◽  
Hanford Site ◽  
Subsurface Sediments ◽  
Iron Redox

scholarly journals Spectroscopic and Diffraction Study of Uranium Speciation in Contaminated Vadose Zone Sediments from the Hanford Site, Washington State

2004 ◽  
Vol 38 (10) ◽  
pp. 2822-2828 ◽  
Author(s):  
Jeffrey G. Catalano ◽  
Steven M. Heald ◽  
John M. Zachara ◽  
Gordon E. Brown
Keyword(s):  
Diffraction Study ◽  
Vadose Zone ◽  
Washington State ◽  
Hanford Site ◽  
Uranium Speciation

Closure of the Fast Flux Test Facility: Current Status and Future Plans

2007 ◽  
Author(s):  
C. P. Lesperance ◽  
S. V. Doebler ◽  
T. M. Burke
Keyword(s):  
Environmental Impact ◽  
Washington State ◽  
Test Facility ◽  
Current Status ◽  
Environmental Impact Statement ◽  
Hanford Site ◽  
Fast Flux ◽  
Sodium Storage ◽  
The U.S ◽  
Future Plans

The Fast Flux Test Facility (FFTF) was a 400 MWt sodium-cooled fast reactor situated on the U.S. Department of Energy’s (DOE) Hanford Site in the southeastern portion of Washington State. DOE issued the final order to shut down the facility in 2001, when it was concluded that there was no longer a need for FFTF. Deactivation activities are in progress to remove or stabilize major hazards and deactivate systems to achieve end points documented in the project baseline. The reactor has been defueled, and approximately 97% of the fuel has been removed from the facility. Approximately 97% of the sodium has been drained from the plant’s systems and placed into an on-site Sodium Storage Facility. The residual sodium will be kept frozen under a blanket of inert gas until it is removed later as part of the facility’s decontamination and decommissioning (D&D). Plant systems have been shut down and placed in a low-risk state to minimize requirements for surveillance and maintenance. D&D work cannot begin until an Environmental Impact Statement has been prepared to evaluate various end state options and to provide a basis for selecting one of the options. The Environmental Impact Statement is expected to be issued in 2009.

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