IR 05000269/1976005
| ML19308A866 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 02/01/1977 |
| From: | Moseley N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Parker W DUKE POWER CO. |
| Shared Package | |
| ML19308A860 | List: |
| References | |
| NUDOCS 7912120655 | |
| Download: ML19308A866 (4) | |
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NUCLEAR REGULATORY COMMISSt~'8
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In Reply Refer To:
IE:II:ADK 50-269/76-5 50-270/76-5 50-287/76-5 Duke Power Company ATTN:
Mr. William O. Parker, Jr.
Vice President, Steam Production P. O. Box 2178 422 South Church Street Charlotte, North Carolina 28242 Gentlemen:
This refers to the discussions held with Messrs. Thies and Tucker on February 1, 1977, regarding the secondary system leakage that occurred on January 17, 1977, resulting in a discharge of in excess of three Curies of I-131 to the Keowee River by way of the settling basins.
With regard to this occurrence, we understand that you have undertaken or will undertake the following actions:
a.
Prepare and use as needed, a procedure to minimize radioactivity discharges from the secondary system to turbine building sumps and subsequently to the environment in the event of future primary to secondary system leakage. This procedure will include use of the condessate system filter demineralizers to reduce the activity levr.s and transfer of contaminated water to the liquid radioactive wac e treatment system. The procedure will be implemented on or before February 4, 1977.
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Prepare and use as needed, a procedure to minimize the volume of liquids released to the turbine building and Pcwdex sumps in the event they become highly contaminated.
The procedure will be implemented on or before February 4, 1977.
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Setup and maintain in operating order temporary pumps and hoses as necessary to provide a means of transferring contaminated water from the turbine building and Powdex sumps to the liquid radioactive waste system and incorporate the use of this equipment into
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appropriate plant procedures. This equipment is to be made avail-able and ready for use on or before February 15, 1977, and further, this equipment will be maintained until permanent corrective actions have been implemented.
If our understanding of your planned actions as described above is not in accordance with the actual plans and actions being implemented, please contact this office immediately.
Very truly yours, A
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Norman C. Moseley, Director Region II
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UNITED STATES
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. NUCLE R REGULA.ORY COMMISSION t
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No: II-77-07 POR DOEDIATE R::', LEASE Contact: Ken Clark (Wednesday, February 2,1977)
Telephone: (404) 221-4503 NRC SAYS DUKE POWER COMPANY WILL ACT TO LIMIT RADIOACTIVE DISCHARGES INTO KECWEE RIVER AT OCONEE NUCLEAR STATION NEAR SENECA, SOUTH CAROLDIA
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%e Nuclear Regulatory Co:nission's Office of Inspection and Enforcement in Atlants said today that Duke Power Cocpany vill take action to i= prove manage:mnt of systems containing radioactive liquids at Oconce Nuclear Station near Seneca, South Carolina, so as to limit the discharge of radioactivity into the Keowce River to a =ini=um.
NRC Regional Director N. C. Moseley said these actions are being taken
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following unplanned release of radioactive Iodine-131 into the river in =id
January which was in excess of NRC regulations governing plant operat!ons.
Water samples taken follow 1cg the release by South Carolina health officials indicated that radioactivity in the river at the nearest drinking water station posed no threat to public health and safety.
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Oconee Unit 1 experienced a secan generator tube-leak on January 15.
During testa to determine the location of the leak, a gasket failure released water to the turbine building which drained to a su=p and subsequently to holding ponds whicit e=pty into the Keowce River.
Maseley said Duke officials have agreed to incorporate into platt operations the use of additional equipment and procedures to improve the use of liquid radioactive waste treatment systems and to improve control of conta=inated water released to the river.
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C0PY
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For:
KEN CLARK February 2, 1977 From:
Corporate Communications Department Duke Power Company 422 South Church Street Charlotte, North Carolina 28242 FOR IMMEDIATE RELEASE SENECA, S. C.
-- Duke Power Company announced today that after discussions with the Nuclear Regulatory Commission, it was adding certain procedures and hardware to the operation of its Oconee Nuclear Station near here.
H. B. Tucker, Manager of Duke's Nuclear Division, said that the action was taken to prevent the inadvertent release of water containing seu: <tdi'activi:y such as occurred two weeks ago when some water from the turbine ouiliing sump at Oconee was pumped into outside holding boains and some of this water was permitted to enter the Keowee Hydro Station's tailrace for a short time.
This release was diluted by the flow of water from operation of the Keowee Hydro-Station which was running for the production of electricity during the recent frigid weather.
Both the Nuclear Regulatory Commission and Duke Power have agreed that the occurrence resulted in no effect whatsoever on public health and safety.
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RRP020207 Distribution: ABCD C0PY
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