Contribution of Uranium-Bearing Evaporites to Plume Persistence Issues at a Former Uranium Mill Site Riverton, Wyoming, USA

Conference · Mon Aug 01 00:00:00 EDT 2016

OSTI ID:1323933

Johnson, Raymond ^[1]; Dam, William ^[2]; Campbell, Sam ^[1]; Campbell, James ^[3]; Morris, Sarah ^[1]; Tigar, Aaron ^[4]

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1. Navarro Research and Engineering
2. U.S. Department of Energy, Legacy Management
3. U.S. Geological Survey 1225 Market Street Riverton, WY 82501
4. Navarrao Research and Engineering

• Evaporites occur in an unsaturated silt layer, which is underlain by a sand and gravel aquifer. • These evaporites are rich in chloride across the site. • Uranium concentrations are higher in the evaporites that overlie the uranium contaminant plume. • Flooding can solubilize the evaporites in the silt layer and release chloride, sulfate (not shown), and uranium into the underlyingsand and gravel aquifer. • The uranium-rich evaporites can delay natural flushing, creating plume persistence near the Little Wind River.

• Research Organization: US Department of Energy/Office of Legacy Management
• Sponsoring Organization: USDOE Office of Legacy Management (LM), Office of Field Operations
• DOE Contract Number: DE-LM000421
• OSTI ID: 1323933
• Resource Relation: Conference: GSA 2016, Denver, CO, 9/25-9/28/16
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES