ML19260A247
| ML19260A247 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 10/19/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Mary Johnson, Nichols T SOUTH CAROLINA ELECTRIC & GAS CO. |
| References | |
| NUDOCS 7911080306 | |
| Download: ML19260A247 (1) | |
Text
,
'o, UNITED STATES g _Jt7 g 8
NUCLEAR REGULATORY COMMISSION o
4
.E REGION 11 0
101 MARIETTA ST., N.W., SulTE 3100 Yg o
ATLANTA, GEORGIA 30303 OCT 191979 In Reply Refer To:
RII:JPO 50-395 South Carolina Electric and Gas Company Attn:
M. C. Johnson, Vice President Special Services and Purchasing Post Office Box 764 Columbia, South Carolit.a 29218 Gentlemen:
Enclosed is 12 Circular No. 79-21, " Prevention of Unplanned Releases of Radioactivity," which provides information in inadvertent releases /on-site spills of radioactivity.
She'id you have any questions related to the enclosed suggested preventise measuces, please contact this office.
'incerely, James P. O'Reilly director
Enclosures:
1.
lE Circulars Issued in the Last Six Months
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7911080 304 g
OCT 191979 South Ct.rolina Electric and Gas Company,
cc w/ encl:
T. B. Conners, Jr.
Conners, Moore and Corber 1747 Pennsylvania Avenue, N.W.
Washington, D.C.
20006 A. A. Smith Quality Assurance Post Office Box 8 Jenkinsville, South Carolina 29065
- 0. S. Bradham, Manager Nuclear Operations Post Office Box 8 Jenkinsville, South Carolina 29065 1296 310
Accession No.:
7908220128 SSINS:
6830 UNITED STATES NUCI. EAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 October 19, 1979 IE Circular No. 79-21 PREVENTION OF UNPI).E4ED RELEASES OF RADI0 ACTIVITY Numerous incidents of unplanned releases of radioactivity have been reported to the NRC within the past few months. These incidents of leaks, overflows and spills have resulted in contamination of areas outside of plant buildings.
The attached table provides you with summary information on these events, their apparent causes, the radiological consequences and the corrective actions.
We believe that a number of these incidents could have been avoided and preven-tive actions for these types of unplanned releases should be instituted by all reactor licensees.
Based on the reported incidents, the following preventive measures can minimize the occurrence of such events.
1.
Review of procedures for transfer of radioactive liquids. Errors in written procedures have led to mistakes in valve line-ups and tank overflows. Written procedures, including check lists for valve line-ups, should be developed and followed for operations which could cause spills of radioactivity. Management controls, including audits, should be employed to assure verbatim compliance with such procedures.
2.
Review of "as built" systems having the potential of inadvertent releases because of design or construction errors.
Consider items such as:
a.
Tank overflows should be routed to liquid radwaste tanks.
b.
Storm drains should be located away from areas with a high potential for spills.
Consideration should be given to drip pans under equipment, such c.
as pumps and valves, from which leakage is expected.
d.
Cofferdams should be installed under doors to areas with a potential for radioactive spills.
e.
Preoperational testing shoul that would permit radioactis unit (s) under construction.
DUPLICATE DOCUMENT 3.
Periodically functionally test ar of systems that could cause an ir Entire doctunent previously corrosion degradation have occurs entered into system under:
d to cause leaks. New permanent at
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