Characterization of Vadose Zone Sediments Below the C Tank Farm: Borehole C4297 and RCRA Borehole 299-E27-22

Technical Report · Thu Sep 11 00:00:00 EDT 2008

DOI:https://doi.org/10.2172/939037· OSTI ID:939037

Brown, Christopher F; Serne, R Jeffrey; Bjornstad, Bruce N; Horton, Duane G; Lanigan, David C; Clayton, Ray E; Valenta, Michelle M; Vickerman, Tanya S; Kutnyakov, Igor V; Geiszler, Keith N; Baum, Steven R; Parker, Kent E; Lindberg, Michael J

This report was revised in September 2008 to remove acid-extractable sodium data from Tables 4.7 and 4.25. The sodium data was removed due to potential contamination introduced during the acid extraction process. The rest of the text remains unchanged from the original report issued in September 2006. The overall goal 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 at the Hanford Site. To meet this goal, CH2M HILL Hanford Group, Inc. tasked scientists from Pacific Northwest National Laboratory (PNNL) to perform detailed analyses on vadose zone sediments from within Waste Management Area (WMA) C. This report is the first of two reports written to present the results of these analyses. Specifically, this report contains all the geologic, geochemical, and selected physiochemical characterization data collected on vadose zone sediment recovered from borehole C4297, installed adjacent to tank C-105, and from borehole 299-E27-22, installed directly north of the C Tank Farm. This report also presents the interpretation of data in the context of sediment types, the vertical extent of contamination, the migration potential of the contaminants, and the likely source of the contamination in the vadose zone below the C Tank Farm. The information presented in this report supports the WMA A-AX, C, and U field investigation report in preparation by CH2M HILL Hanford Group, Inc.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 939037
• Report Number(s): PNNL-15503 Rev. 1; 830403000; TRN: US0806186
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
BOREHOLES
CONTAMINATION
SEDIMENTS
STORAGE FACILITIES
SITE CHARACTERIZATION
HANFORD RESERVATION
GEOCHEMISTRY
RADIOACTIVE WASTE STORAGE
characterization
geochemical
mineralogy
physical properties
sediments
vadose zone