Uranium mill tailings remedial action program. Radiological survey of Shiprock vicinity property SH05, Shiprock, New Mexico, August-November 1982
The radiological assessment conducted at the Shiprock vicinity property SH05 by the ANL Radiological Survey Group indicated background levels of radioactivity within the residential structure. Radiation exposure rates were less than the 20 ..mu..R/h above background limit specified in the EPA Standard (40 CFR 192.12(b)(2)). Short-term radon daughter measurements within the residence did not exceed the 0.02 WL (or 20 mWL) limit for average annual concentration including background as specified in the EPA Standard (Section 192.12(b)(1)). The assessment indicated elevated levels of radioactivity at several areas in the outside environs. One discrete hot spot or localized area was found in the frontyard, near the front porch of the residence. Radiochemical analysis of the soil sample collected there indicated a radium concentration of 352 +- 35 pCi/g, which is in excess of the limit of 5 pCi/g above background, averaged over the first 15 cm of soil below the surface, as specified in Section 192.12(a)(1) of the EPA Standard. From soil sample analyses and the history of the site, the contaminating material appears to be residual radioactive material under the provisions of the Uranium Mill Tailings Radiation Control Act of 1978 in the form of radium-enhanced material (i.e., tailings) and natural uranium ore. Since the surface soil contamination levels exceed the limits specified in the EPA Standard, remedial action for this vicinity site should be considered. 10 references, 4 figures, 5 tables.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 6664644
- Report Number(s):
- DOE/NE-SH05; ANL-OHS/HP-84-SH05; ON: DE84016022
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ABANDONED SITES
RADIATION MONITORING
RADIOMETRIC SURVEYS
FEED MATERIALS PLANTS
RADIUM
RADIOECOLOGICAL CONCENTRATION
SOILS
RADIOACTIVITY
CONTAMINATION
DAUGHTER PRODUCTS
EXPERIMENTAL DATA
MILL TAILINGS
NEW MEXICO
RADON
STABILIZATION
WASTE DISPOSAL
ALKALINE EARTH METALS
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ISOTOPES
MANAGEMENT
METALS
MONITORING
NONMETALS
NORTH AMERICA
NUCLEAR FACILITIES
NUMERICAL DATA
RARE GASES
SOLID WASTES
SURVEYS
TAILINGS
USA
WASTE MANAGEMENT
WASTES
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