ML19250B772
| ML19250B772 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 10/19/1979 |
| From: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Aswell D LOUISIANA POWER & LIGHT CO. |
| References | |
| NUDOCS 7911050216 | |
| Download: ML19250B772 (1) | |
Text
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,1 UNITED STATES
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NUCLEAR REGULATORY COMMISSION
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REGloN IV
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611 RYAN PLAZA DRIVE, SUITE 1000 E
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October 19, 1979 In Reply Refer To:
RIV Docket No.
50-382/IE Circular No. 79-21 Louisiana Power and Light Co.
ATTN:
Mr. D. L. Aswell Vice President of Power Production 142 Delaronde Street New Orleans, Louisiana 70174 Gentlemen:
Enclosed is IE Circular No. 79-21, " Prevention of Unplanned Releases of Radioactivity," which provides information on. inadvertent releases /on-site spills of radioactivity. Should you have any questions related to the enclosed suggested preventive measures, please contact this office.
Sincerely,
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Karl V. Seyfrit
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i Director
Enclosures:
1.
IE Circulars Issued in the Last Six Months 1271 124 7911050
Accession No.: 7908220128 SSINS: 6830 UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 IE Circular No. 79-21' Date: October 19, 1979 Page 1 of 2 PREVENTION OF UNPLANNED RELEASES OF RADIOACTIVITY 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-tise 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 inadvert
..t releases because of design or construction errors. Consider items r ch 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.
c.
Consideration should be given to drip pans under equipment, such 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 sho
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that would permit radioact unit (s) under construction DUPLICATE DOCUhENT Entirc document previously entered into system under:
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