ML19341C423
| ML19341C423 | |
| Person / Time | |
|---|---|
| Site: | Plum Brook File:National Aeronautics and Space Administration icon.png |
| Issue date: | 02/11/1981 |
| From: | Reid R Office of Nuclear Reactor Regulation |
| To: | Benedict D NATIONAL AERONAUTICS & SPACE ADMINISTRATION |
| References | |
| FRN-43FR10370, FRN-45FR10370, RULE-PR-30, RULE-PR-40, RULE-PR-50, RULE-PR-70, RULE-PR-72, TASK-FP-010-1, TASK-FP-10-1, TASK-OS 43FR10370, NUDOCS 8103030396 | |
| Download: ML19341C423 (3) | |
Text
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,,.. y3, UNITED STATES
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. UCLEAR REGULATORY COMMISSION r,
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ISSf g -f Mr. Donald E. Benedict, Project Manager E' '44 g% d grg g Reactor Decommissioning Projects Office flational Aeronautics and Space Administration Lewis Research Center g
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Dear Mr. Benedf0t:
By application dated March 17, 1980 as supplemented by letter dated November 7,1980 you requested authorization to dismantle the Plum Brook Test Reactor and the Plum Brook Mock-Up Reactor and to decon-taminate the NASA Hot Laboratory and Radiochemistry Laboratory all located at the Plum Brook Reactor Facility.
As discussed with you, your proposed radiation limits for release of the Plum Brook Reactor Facility following dismantling and decontamina-l ting must be revised.
Enclosure No.1 specifies " Radiation Levels for Release of Plum Brook Reactor Facility to Unrestricted Access" that are acceptable to the staff. The Materials Licensing Branch of the NRC Nuclear Materials Safety and Safeguards Office concurs with Enclosure No. I with respect to Plum Brook Reactor Facility Byproduct Material License No. 34-06706-3.
Sincerely,
(
Tobert W. Reid, Chief Operating Reactors Branch #4 Division of Licensing
Enclosures:
1.
Radiation Levels for Release of Plum Brook Reactor Facility 2.
cc w/a6
- s:
see next page 4
8103 080 39G
L Mr. Donald E. Benedict cc w/ enclosures:
t Ohio Power Siting Commission ATTN: Chief, Office of Technical Evaluation 361 East Broad Street P. O. Box 1735 Columbus, Ohio 43216 Ohio Department of Health ATTN: Director of Health 450 East Town Street Columbus, Ohio 43216 e
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I
e Enclosure RADIATION LEVELS FOR RELEASE OF PLUM BROOK REACTOR FACILITY TO UNRESTRICTED ACCESS
. Surface Contamination Surfaces must be decontaminated to levels consistent with Table 1 of Reg.
Guide 1.86.
Radioactive Material Other Than Surface Contamination (Co 60, Eu 152, Cs 137, Sr 90)
Co 60, Eu 152 and Cs 137 that nay exist in concrete, components, structures, and soil must be removed such that the radiatjon level from these isotopes l
is less tb=- 5pR/hr above natural background e as measured at one meter from surface.
Soil samples must be taken in the Emergency Retention Basin at its inlet location to determine the amount of Sr 90 present.
Sr 90 in the reten-tion basin soil must be no more than 5p Ci/gm.
General
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A sta-istically sound sampling and monitoring methodology acceptable to the NRC nus; be used. A site survey plan m1st be submitted to the NRC prior to concucting final sampling and monitoring.
I) Radiation from naturally occurring radioisotopes as measured at a comparable uncontaminated structure or exterior soil surface.
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