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Title: Data Validation Package, June 2016 Groundwater Sampling at the Hallam, Nebraska, Decommissioned Reactor Site, August 2016

Technical Report ·
DOI:https://doi.org/10.2172/1345835· OSTI ID:1345835
 [1];  [2]
  1. USDOE Office of Legacy Management, Washington, DC (United States)
  2. Navarro Research and Engineering, Oak Ridge, TN (United States)

The 2008 Long-Term Surveillance Plan [LTSP] for the Decommissioned Hallam Nuclear Power Facility, Hallam, Nebraska (http://www.lm.doe.gov/Hallam/Documents.aspx) requires groundwater monitoring once every 2 years. Seventeen monitoring wells at the Hallam site were sampled during this event as specified in the plan. Planned monitoring locations are shown in Attachment 1, Sampling and Analysis Work Order. Water levels were measured at all sampled wells and at two additional wells (6A and 6B) prior to the start of sampling. Additionally, water levels of each sampled well were measured at the beginning of sampling. See Attachment 2, Trip Report, for additional details. Sampling and analysis were conducted as specified in Sampling and Analysis Plan for U.S. Department of Energy Office of Legacy Management Sites (LMS/PRO/S04351, continually updated, http://energy.gov/lm/downloads/sampling-and-analysis-plan-us-department- energy-office-legacy-management-sites). Gross alpha and gross beta are the only parameters that were detected at statistically significant concentrations. Time/concentration graphs of the gross alpha and gross beta data are included in Attachment 3, Data Presentation. The gross alpha and gross beta activity concentrations observed are consistent with values previously observed and are attributed to naturally occurring radionuclides (e.g., uranium and uranium decay chain products) in the groundwater.

Research Organization:
US Department of Energy (USDOE), Washington DC (United States). Office of Legacy Management (LM)
Sponsoring Organization:
USDOE Office of Legacy Management (LM), Office of Field Operations
DOE Contract Number:
LM0000421
OSTI ID:
1345835
Report Number(s):
S00616
Country of Publication:
United States
Language:
English