ML20112B901
| ML20112B901 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 05/17/1996 |
| From: | Shelton D CENTERIOR ENERGY |
| To: | OHIO, STATE OF |
| References | |
| PY-CEI-OEPA-025, PY-CEI-OEPA-25, NUDOCS 9605240073 | |
| Download: ML20112B901 (2) | |
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CENTERIOR ENERGY PERRY NUCLEAR POWER PLANT Mall Address:
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Donald C. Shelton RY 81 RR, O 10 44081 SENIOR VICE PRESIDENT (216) 25 4 3737 NUCLEAR May 11, 1996 PY-CEI/OEPA-0250L Ohio Environmental Protection Agency N rtheast District Office 2110 E. Aurora Road Twinsburg, Ohio 44087 i
Rat Perry Nuclear Power Plant OEPA Permit No; 3IB00016DD G ntlemen, In accordance with Part III, Section 12.C of the Permit, this letter is acrying as confirmation of a telephone report of an unauthorized discharge.
Th3 discharge was due to a leak in an expansion joint in the plant cooling t:wer basin wall.
Rtrponse Commission on May 14,The telephone report was made to the State Emergency 1996.
four additional areas of leakage through the concrete cooling tower returnSince the huder were identified.
to be less than one gallon per minute.The total resulting additional leakage is estimated The Part III, Section 12. C issues wtre addressed as follows taking all leaks into consideration.
1.
The limitation which has been exceeded: Plant 'irculating water was c
discharged to the ground through a leaking expansion joint on the cooling tower basin wall. The dour additional leak locations in the concrete cooling tower header are leaking less than one' gallon per minute to the ground. This is not the normal flow path for the water from this system.
2.
The extent of the exceedance: Approximately one gallon per minute of plant circulating water was leaking to the ground from the expansion joint.
The leakage was discovered at 1100 on May 14, 1996; by 1400 it had been contained in a sump and routed back into the cooling tower basin.
The additional leakage of less than one gallon per minute was discovered during follow up inspections of the cooling tower.
This leakage is not currently being contained.
3.
The cause of the exceedance: A leaking expansion joint on the cooling tower basin wall and additional leak locations in the concrete cooling tower return header.
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The period of exceedance: The leak was noted at approximately 1100 on May 14, 1996. The tiine the leakage started is not known. The sump and pump were installed to route the flow back into the cooling ttver basin at 1400 on May 14, 1996.
The additional Je=kage from the cooling tower return header was noted on
'ta' 16, 19f6.
5.
If uncorrected, the anticipated time the exceedance is expected to continue: The leakage from the expansion joint was brought under control at 1400 on May 14, 1996, when the pump was installed to rosc.e water back into the cooling tower basin. The header leakage is not being contained.
All leakage is being evaluated for repair.
6.
Steps hejag taken to reduce, eliminute and/or prevent recurrence of the exceed 6nce: All leakage is being evaluated for repair.
If you have questions or require additional information, please contact Louise K. Barton at (216) 280-5512.
Vary t r yours, g/4 7
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LTON DCS.'lkbsvah raa
'cc NRC Project Manager NI NRC Resident Inspector' NRC Document Control' Desk NRC Region III
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