ML20204A395
| ML20204A395 | |
| Person / Time | |
|---|---|
| Site: | Vogtle, 05000426, 05000427  |
| Issue date: | 02/12/1974 |
| From: | Harold Denton US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Muller D US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20197G423 | List: |
| References | |
| FOIA-84-663 NUDOCS 8605120161 | |
| Download: ML20204A395 (4) | |
Text
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pp3 1 1 1974 Daniel R. Huller, Assistant Director for Environmental Projects, L A!!E!!DED COPY FOR FES FOR V0GTLC PLAtlT Plant nane: Alvin W. Vngtle, Units 1, 2, 3, and 4 Licensing stage: CP,
Docket number: 50-424, 425, 426 and 427 Responsibic branch: CPB #2 Project Leader: R. Clark Description of response: Completed inclusion of occupational man-rem considerations.
Cnclosed is mterial to be incorportted in the Voqtle FES, including occupational radiation exposure considerations.
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H. P. r Harold R. Denton, Assistant Director for Site Safety Directorate of Licensing
Enclosure:
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AdEggd[@{S_lg_yggI([_((S At the end of Section 5.4 (ininediately preceding section 5.4.1) insert:
Radiation doses calculated by the AEC staff are intended to apply to an average adult.
Specific persons will receive higher or lower doses, depending upon their age, living habits, food preferences, or recreational activities.
Based upon experience at comparable operating reactors, an estimate has been made of the occupational radiation exposure expected to result from operation of the Vogtle fluclear Plant (Units 1, 2, 3, and 4).
Add new section 5.4.5:
Based on a review of the applicant's Safety Analysis Report, the Staff has determined that individual occupational doses can be maintained within the limits of 10 CFR 20. Radiation dose limits of 10 CFR 20 are based on a thorough consideration of the biological risk of exposure to ionizing radiation.
Maintaining radiation doses of plant personnel within these limits ensures that the risk associated with radiation exposure is no greater than those risks normally accepted by workers in other present day industries.12 Using information compiled by the Atomic Energy Commission 13,14 and othersis,1s of past experience from operating nuclear reactor plants, it is estimated that the average collective dose to all on-site personnel at large operating nuclear reactor plants will be approximately 400-500 man-rem per year per unit. The total dose for the Vogtle fluclear Plant will be influenced by several factors for which definitive numerical values are not available, but the aggregate of which are expected to lead to lower doses to on-site personnel than estimated above.
Improvements to the radioactive waste effluent treatment system to achieve offsite population doses as low as practicable have the potential for causing a small increase to on-site personnel doses, all other factors remaining unchanced. However the applicant's implementation of Regulatory Guidesl7 and other guidance provided through the Staff review process regarding reducing available exposures and maintaining on-site radiation doses as low as practicable is expected to result in an over-all reduction of total doses from those currently experienced.
In section 5.4.4, delete first paragraph.
(This non appears in section 5.4 introduction)
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In section 5.4.4, the last sentence should be amended to read:
"The population dose from all sources, including natural background, cloud immersion, consumption of fish, recreation, transportation, and occupational exposures is summarized in table 3.6."
Replace table 3.6 with new table 3.6 (attached).
Change 5.4.5 to 5.4.6.
Section 5.4.6 should be amended (first sentence) to read:
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..... the total man-rem in unrestricted areas, from all effluent pathways, received....."
Section 5.4.6 add:
"The estimated radiation doses to individuals and to the population from normal operation of the Vogtle Nuclear Plant (units 1, 2, 3, and 4) support the conclusion in section 3.5 that the releases of radioactive materials in liquid and gaseous effluents are as low as practicable.
The 2,000 man-rem received as occupational on-site exposure is a small percentage of the annual total of about 71,000 g
man-rem delivered to the 1977 population living within a 50 mile radius of the Vogtle Nuclear Plant."
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7 TABLE 5.6 SUPNARY OF ANNUAL TOTAL BODY QQ[ES _IQ _Ig[_PQP_UQ1[0,3_ylIH_I N _q0_MI LES Category Annual Cumulative Dose (man-rem)
Population Dose from Background 71,000 Restricted Area Occupational Radiation Exposure 2,000 Unrestricted Area Transportation of Nuclear Fuel and Waste 28 Fish Ingestion 0.8 Gaseous Cloud 0.14
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