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Title: Final report: survey and removal of radioactive surface contamination at environmental restoration sites, Sandia National Laboratories/New Mexico. Volume 1

Technical Report ·
DOI:https://doi.org/10.2172/539514· OSTI ID:539514
;  [1];  [2];  [3];  [4]
  1. Brown and Root Environmental, Albuquerque, NM (United States)
  2. MDM/Lamb, Inc., Albuquerque, NM (United States)
  3. Environmental Dimensions, Inc., Albuquerque, NM 87109 (United States)
  4. Sandia National Labs., Albuquerque, NM (United States)

This report describes the survey and removal of radioactive surface contamination at Sandia`s Environmental Restoration (ER) sites. Radiological characterization was performed as a prerequisite to beginning the Resource Conservation and Recovery Act (RCRA) corrective action process. The removal of radioactive surface contamination was performed in order to reduce potential impacts to human health and the environment. The predominant radiological contaminant of concern was depleted uranium (DU). Between October 1993 and November 1996 scanning surface radiation surveys, using gamma scintillometers, were conducted at 65 sites covering approximately 908 acres. A total of 9,518 radiation anomalies were detected at 38 sites. Cleanup activities were conducted between October 1994 and November 1996. A total of 9,122 anomalies were removed and 2,072 waste drums were generated. The majority of anomalies not removed were associated with a site that has subsurface contamination beyond the scope of this project. Verification soil samples (1,008 total samples) were collected from anomalies during cleanup activities and confirm that the soil concentration achieved in the field were far below the target cleanup level of 230 pCi/g of U-238 (the primary constituent of DU) in the soil. Cleanup was completed at 21 sites and no further radiological action is required. Seventeen sites were not completed since cleanup activities wee precluded by ongoing site activity or were beyond the original project scope.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)
DOE Contract Number:
AC04-94AL85000
OSTI ID:
539514
Report Number(s):
SAND-97-2320/1; ON: DE98000780; BR: EW2010202; TRN: 98:000950
Resource Relation:
Other Information: PBD: Sep 1997
Country of Publication:
United States
Language:
English