Derivation of uranium residual radioactive material guidelines for the Elza Gate Site

Technical Report · Fri Feb 01 04:00:00 EST 1991

DOI:https://doi.org/10.2172/6237621· OSTI ID:6237621

Cheng, J J; Yu, C; Devgun, J S

Residual radioactive material guidelines for uranium were derived for a large, homogeneously contaminated area at the Elza Gate Site in Oak Ridge, Tennessee. The derivation of the single-nuclide and total uranium guidelines was based on the requirement that the 50-year committed effective dose equivalent to hypothetical individual who lives or works in the immediate vicinity of the Elza Gate Site should not exceed a dose of 100 mrem/yr following decontamination. The DOE residual radioactive guideline computer code RESRAD was used in this evaluation. Four potential scenarios were considered for the site; the scenarios vary with regard to time spent at the site, sources of water used, and sources of food consumed. The results of the evaluation indicate that the basic dose limit of 100 mrem/yr will not be exceeded for uranium within 1000 years, provided that the soil concentration of uranium at the Elza Gate Site does not exceed the following levels: 1800 pCi/g for Scenario A (industrial worker: the expected scenario); 4000 pCi/g for Scenario B (recreationist: a plausible scenario); 470 pCi/g for Scenario C (resident farmer using pond water as the only water source: a possible but unlikely scenario); and 120 pCi/g for Scenario D (resident farmer using well water as the only water source: a possible but unlikely scenario). The uranium guideline applies to the total activity concentration of uranium isotopes in their natural activity concentration ratio of 1:1: 0.046. These guidelines are calculated on the basis of a dose of 100 mrem/yr. In setting the actual uranium guideline for the Elza Gate Site, the DOE will apply the as low as reasonably achievable (ALARA) policy to the decision-making process, along with other factors, such as determining whether a particular scenario is reasonable and appropriate. 10 refs., 3 figs., 7 tabs.

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: DOE/NE
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6237621
• Report Number(s): ANL/RP-72572; ON: DE91008962
• Country of Publication: United States
• Language: English

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ABANDONED SITES
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALARA
ALPHA DECAY RADIOISOTOPES
COMPLIANCE
COMPUTER CODES
CONCENTRATION RATIO
DOSE EQUIVALENTS
DOSE LIMITS
DOSES
DOSIMETRY
ENVIRONMENTAL EXPOSURE
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EVEN-EVEN NUCLEI
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GOVERNMENT POLICIES
HEAVY ION DECAY RADIOISOTOPES
HEAVY NUCLEI
HUMAN POPULATIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MAGNESIUM 28 DECAY RADIOISOTOPES
MASS TRANSFER
MATERIALS
MINUTES LIVING RADIOISOTOPES
NATIONAL ORGANIZATIONS
NEON 24 DECAY RADIOISOTOPES
NORTH AMERICA
NUCLEI
OAK RIDGE
POPULATIONS
R CODES
RADIATION DOSES
RADIATION PROTECTION
RADIOACTIVE MATERIALS
RADIOISOTOPES
RECOMMENDATIONS
REMEDIAL ACTION
RISK ASSESSMENT
SAFETY STANDARDS
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TENNESSEE
URANIUM 234
URANIUM 235
URANIUM 238
URANIUM ISOTOPES
US DOE
US ORGANIZATIONS
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