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Aquifer Testing and Rebound Study in Support of the 100-H Deep Chromium Investigation

Description: The 100-HR-3 Groundwater Operable Unit (OU) second Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) 5-year review (DOEIRL-2006-20, The Second CERCLA Five-Year Review Report for the Hanford Site) set a milestone to conduct an investigation of deep hexavalent chromium contamination in the sediments of the Ringold upper mud (RUM) unit, which underlies the unconfined aquifer in the 100-H Area. The 5-year review noted that groundwater samples from one deep well … more
Date: November 5, 2010
Creator: Smoot, J. L.
Partner: UNT Libraries Government Documents Department
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Hydrostratigraphy of the General Separations Area, Savannah River Site (SRS), South Carolina

Description: Detailed analysis and synthesis of geophysical, core, and hydrologic data from 230 wells were used to delineate the hydrostratigraphy and aquifer characteristics of the General Separations Area at SRS. The study area is hydrologically bounded on the north and northwest by Upper Three Runs Creek (UTRC) and on the south by Fourmile Branch (FB). The Cretaceous-Tertiary sedimentary sequence underlying the study area is divided into two Aquifer Systems; in ascending order, Aquifer Systems I and 11. … more
Date: January 1, 1991
Creator: Aadland, R. K.; Harris, M. K.; Lewis, C. M.; Gaughan, T. F. (Westinghouse Savannah River Co., Aiken, SC (United States)) & Westbrook, T. M. (Dames and Moore, Atlanta, GA (United States))
Partner: UNT Libraries Government Documents Department
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Uranium Contamination in the 300 Area: Emergent Data and their Impact on the Source Term Conceptual Model

Description: The primary objectives of this characterization activity were to: 1) determine the extent of uranium contamination in the sediments, 2) quantify the leachable (labile) concentration of uranium in the sediments, and 3) create a data set that could be used to correlate the present data to existing 300 Area data. In order to meet these objectives, sediments collected from wells 399-2-5 (C5708), 299-3-22 (C5706) and 299-4-14 (C5707) were analyzed for moisture content, 1:1 sediment:water extracts (w… more
Date: September 30, 2008
Creator: Brown, Christopher F.; Um, Wooyong & Serne, R. Jeffrey
Partner: UNT Libraries Government Documents Department
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SRP baseline hydrogeologic investigation: Aquifer characterization

Description: An investigation of the mineralogy and chemistry of the principal hydrogeologic units and the geochemistry of the water in the principal aquifers at Savannah River Site (SRS) was undertaken as part of the Baseline Hydrogeologic Investigation. This investigation was conducted to provide background data for future site studies and reports and to provide a site-wide interpretation of the geology and geochemistry of the Coastal Plain Hydrostratigraphic province. Ground water samples were analyzed f… more
Date: March 31, 1992
Creator: Strom, R. N. & Kaback, D. S.
Partner: UNT Libraries Government Documents Department
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Carbon Tetrachloride Partition Coefficients Measured by Aqueous Sorption to Hanford Sediments from Operable Units 200-UP-1 and 200-ZP-1

Description: Kd values obtained on sediment samples from 200-UP-1 and 10-ZP-1 contribute to a larger Kd database that exists for other Hanford sediments, and contains significant desorption data for CCl4. Adsorption results presented here validate the use of a linear adsorption isotherm (Kd) to predict short contact time CCl4 adsorption to sediments in 200-UP-1 groundwater plume for a distinct ranges in CCl4 concentration. However, this does not imply that values of Kd will be constant if the groundwater ch… more
Date: September 30, 2007
Creator: Wellman, Dawn M.; Riley, Robert G.; Cordova, Elsa A.; Parker, Kent E. & Mitroshkov, Alexandre V.
Partner: UNT Libraries Government Documents Department
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Relative risk site evaluations for Yakima Training Center

Description: All 20 U.S. Army Yakima Training Center (YTC) sites evaluated were given a `low` relative risk. At Solid Waste Management Unit (SWMU) 22, a `minimum` soils contaminant hazard factor was assigned even though 6,700 mg/kg TPH-diesel was found in surface soil. SWMU 22 is physically located on top of and with the fence surrounding Area of Concern (AOC) 4. Because the diesel is most likely associated with AOC 4, and plans are to clean up AOC 4, any further actions regarding these contaminated soils s… more
Date: November 1, 1996
Creator: Smith, R. M. & Whelan, G.
Partner: UNT Libraries Government Documents Department
open access

Strategy For A/M Area Production Wells

Description: Savannah River Site personnel are planning a two phase program in order to significantly reduce the amount of dissolved chlorinated solvents that are being transported to the McQueen branch Aquifer via the wellbore and gravel pack zones of the A/M Area production well system. In Phase I of the program a commercially available inflatable packer and check valve assembly will be installed inside the casing at the altitude of the McQueen Branch Confining Unit. This immediate, short term solution wi… more
Date: February 29, 1996
Creator: Jackson, D. G.; Looney, B. B.; Bergren, C. L.; Wells, D. G. & Beavers, B. A.
Partner: UNT Libraries Government Documents Department
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RWMC Performance Assessment/Composite Analysis Monitoring Program Report - FY 2002

Description: US DOE Order 435.1, Radioactive Waste Management, Chapter IV and the associated implementation manual and guidance require monitoring of low-level radioactive waste (LLW) disposal facilities. The Performance Assessment/Composite Analysis (PA/CA) Monitoring program was developed and implemented to meet this requirement. This report represents the results of PA/CA monitoring projects that are available as of September 2002. The technical basis for the PA/CA program is provided in the PA/CA Monito… more
Date: September 1, 2002
Creator: Ritter, Paul David & Parsons, Alva Marie
Partner: UNT Libraries Government Documents Department
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Abiotic reduction of aquifer materials by dithionite: A promising in-situ remediation technology

Description: Laboratory batch and column experiments were conducted with Hanford sediments to develop the capability to predict (1) the longevity of dithionite in these systems, (2) its efficiency as a reductant of structural iron, and (3) the longevity and reactivity of the reduced iron with soluble inorganic and organic species. After an initial induction period, the loss of dithionite by disproportionation and oxidation could be described by pseudo-first-order (PFO) kinetics. Other than the initial react… more
Date: November 1, 1994
Creator: Amonette, J. E.; Szecsody, J. E.; Schaef, H. T.; Gorby, Y. A.; Fruchter, J. S. & Templeton, J. C.
Partner: UNT Libraries Government Documents Department
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