ML19260A249
| ML19260A249 | |
| Person / Time | |
|---|---|
| Site: | Atlantic Nuclear Power Plant  |
| Issue date: | 10/19/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Collier A OFFSHORE POWER SYSTEMS (SUBS. OF WESTINGHOUSE ELECTRI |
| References | |
| NUDOCS 7911080319 | |
| Download: ML19260A249 (1) | |
Text
Wl0
'o,,
UNITED STATES
"% - 87 8
NUCLEAR REGULATORY COMMISSION o
I e
REGION 11 o
101 MARIETTA ST N.W., SUITE 3100 ATLANTA, CEORGIA 30303 OCT 191979 In Reply Refer To:
RII:JPO 50-437 Offshore Power Systems Attn:
A. R. Collier, President P. O. Box 8000 Jacksonville, Florida 32211 Gentlemen:
Enclosed is IE Circular No. 79-21, " Prevention of Unplanned Releases of Radioactivity," which provides information in inadvertent releases /on-site spills of radioactivity.
Should you have any questions related to the enclosed suggested preventive measures, please contact this office.
Sincerely, N
( NV James P. O'Reilly Director
Enclosures:
1.
IE Circulars Issued in the Last Six Months 1296 348 29uoso3/7 g
Accession No.:
7908220128 SSINS: 6830 UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 October 19, 1979 IE Circular No. 79-7i PREVENTION OF UNPLAKNED RELEASES OF RADIOACTIVITY Numerous incidents of unplanned releases of radioactivity have been reported to the NRC within the past few m(nths.
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 raatological 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 ed 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:
Tank overflows should be routed to liquid radwaste tanks.
a.
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.
Preoperational testing shoul 129I) 34h e.
that would permit radioactiv unit (s) under construction.
DUPLICATE DOCUMENT 3.
Periodically functionally test an of systems that could cause an in Entire document previously entered 'nto system under:
corrosion degradation have occurr to cause leaks. New permanent at f
9