Isotopic Studies of Contaminant Transport at the Hanford Site,WA
Journal Article
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· Vadose Zone Journal -- Special Section: HanfordSite
OSTI ID:932477
Processes of fluid flow and chemical transport through thevadose zone can be characterized through the isotopic systematics ofnatural soils, minerals, pore fluids and groundwater. In thiscontribution, we first review our research using measured isotopicvariations, due both to natural and site related processes, of theelements H, O, N, Sr and U, to study the interconnection between vadosezone and groundwater contamination at the Hanford Site in south-centralWashington. We follow this brief review with a presentation of new datapertaining to vadose zone and groundwater contamination in the WMAT-TX-TY vicinity. Uranium (U) isotopic data for the C3832 core (WMA TX)indicates the involvement of processed natural U fuel, and links theobserved U contamination to the nearby single shelled tank TX-104. Thedata also precludes contamination from an early 1970 s TX-107 leak. Inthe case of the C4104 core (WMA T), the U isotopic data indicates amixture of processed natural and enriched U fuels consistent with themajor leak from T-106 in 1973. Uranium and Strontium isotopic data forthe cores also provides direct evidence for chemical interaction betweenhigh-pH waste fluid and sediment. Isotopic data for groundwater nitratecontamination in the vicinity of WMA-T strongly suggests high-level tankwaste (most likely from T-106) as the source of very high 99Tcconcentrations recently observed at the NE corner of WMAT.
- Research Organization:
- Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
- Sponsoring Organization:
- USDOE Director. Office of Science. Biological andEnvironmental Research
- DOE Contract Number:
- AC02-05CH11231
- OSTI ID:
- 932477
- Report Number(s):
- LBNL--61935; BnR: KP1302000
- Journal Information:
- Vadose Zone Journal -- Special Section: HanfordSite, Journal Name: Vadose Zone Journal -- Special Section: HanfordSite Journal Issue: 4 Vol. 6
- Country of Publication:
- United States
- Language:
- English
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Isotopic Studies of Contaminant Transport at the Hanford Site, Washington.
Isotopic Tracers for Biogeochemical Processes and Contaminant Transport: Hanford, Washington
Characterization of Vadose Zone Sediments Below the T Tank Farm: Boreholes C4104, C4105, 299-W10-196 and RCRA Borehole 299-W11-39
Journal Article
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Thu Nov 01 00:00:00 EDT 2007
· Vadose Zone Journal, 6(4):1018-1030
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OSTI ID:924676
Isotopic Tracers for Biogeochemical Processes and Contaminant Transport: Hanford, Washington
Conference
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Thu Apr 19 00:00:00 EDT 2007
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OSTI ID:927512
Characterization of Vadose Zone Sediments Below the T Tank Farm: Boreholes C4104, C4105, 299-W10-196 and RCRA Borehole 299-W11-39
Technical Report
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Wed Sep 01 00:00:00 EDT 2004
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OSTI ID:15020756