Characterization of Vadose Zone Sediment: Uncontaminated RCRA Borehole Core Samples and Composite Samples

Serne, R. Jeffrey ; Bjornstad, Bruce N. ; Schaef, Herbert T. ; Williams, Bruce A. ; Lanigan, David C. ; Horton, Duane G. ; Clayton, Ray E. ; Mitroshkov, Alexandre V. ; Legore, Virginia L. ; O' ; Hara, Matthew J. ; Brown, Christopher F. ; Parker, Kent E. ; Kutnyakov, Igor V. ; Serne, Jennifer N. ; Last, George V. ; Smith, Steven C. ; Lindenmeier, Clark W. ; Zachara, John M. ; Burke, Deborah Sd

Pacific Northwest National Laboratory (U.S.)

关键词: Geochemistry;    Characterization;    Radioactive Waste Storage;    Mineralogy;    Sediments;   

DOI  :  10.2172/15001166
RP-ID  :  PNNL-13757-1
RP-ID  :  AC05-76RL01830
RP-ID  :  15001166

美国|英语

来源: UNT Digital Library

【 摘 要 】

The overall goal of the of the Tank Farm Vadose Zone Project, led by CH2M HILL Hanford Group, Inc., is to define risks from past and future single-shell tank farm activities. To meet this goal, CH2M HILL Hanford Group, Inc. asked scientists from Pacific Northwest National Laboratory to perform detailed analyses on vadose zone sediment from within the S-SX Waste Management Area. This report is the first in a series of four reports to present the results of these analyses. Specifically, this report contains all the geologic, geochemical, and selected physical characterization data collected on vadose zone sediment recovered from RCRA borehole bore samples and composite samples. Intact cores from two RCRA boreholes (299-W22-48 and 299-W22-50) near the SX Tank Farm and four, large-quantity grab samples from outcrop sediment on and off the Hanford Site were sampled to better understand the fate of contaminants in the vadose zone beneath underground storage tanks at the Hanford Site. Borehole and outcrop samples analyzed for this report are located outside the tank farms, and therefore may be considered standard or background samples from which to compare contaminated sediments within the tank farms themselves. This report presents our interpretation of the physical, chemical, and mineralogical properties of the uncontaminated vadose zone sediments, and variations in the vertical distribution of these properties. The information presented in this report is intended to support preparation of the S-SX Field Investigation Report to be prepared by CH2M Hill Hanford Group, Inc. as well as future remediation actions at the S-SX Tank Farm.