skip to main content

Title: Model Evaluation Report for Corrective Action Unit 98: Frenchman Flat, Nevada National Security Site, Nye County, Nevada, Revision 1

Model evaluation focused solely on the PIN STRIPE and MILK SHAKE underground nuclear tests’ contaminant boundaries (CBs) because they had the largest extent, uncertainty, and potential consequences. The CAMBRIC radionuclide migration experiment also had a relatively large CB, but because it was constrained by transport data (notably Well UE-5n), there was little uncertainty, and radioactive decay reduced concentrations before much migration could occur. Each evaluation target and the associated data-collection activity were assessed in turn to determine whether the new data support, or demonstrate conservatism of, the CB forecasts. The modeling team—in this case, the same team that developed the Frenchman Flat geologic, source term, and groundwater flow and transport models—analyzed the new data and presented the results to a PER committee. Existing site understanding and its representation in numerical groundwater flow and transport models was evaluated in light of the new data and the ability to proceed to the CR stage of long-term monitoring and institutional control.
Authors:
;
Publication Date:
OSTI Identifier:
1158867
Report Number(s):
N-I/28091--088
DOE Contract Number:
DEAC5209NA28091
Resource Type:
Technical Report
Research Org:
Navarro-Intera, LLC (N-I), Las Vegas, NV (United States)
Sponsoring Org:
USDOE Office of Environmental Management (EM), Office of Groundwater and Soil Remediation (EM-32)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES Frenchman Flat; CAU 98