ML20094N355
| ML20094N355 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 08/03/1984 |
| From: | Tucker H DUKE POWER CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 8408160183 | |
| Download: ML20094N355 (3) | |
Text
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.. - l DUKE POWER GOMPAhT P.O. Box 33180 CHARLOTTE. N.C. 28242
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a August 3, 1984 Mr. James P. O'Reilly, Regional Administrator U. S._ Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Re: ' Catawba Nuclear Station Units 1 and 2 Docket Nos. 50-413 and 50-414
Dear Mr. O'Reilly:
Pursuant to 10 CFR 50.55e, please find attached a supplemental response to Significant Deficiency Report No. SD 413-414/84-13.
Very truly yours, 0 &/
J Hal B. Tucker RWO: sib Attachment cc: Director INP0 Records Center Office of Inspection & Enforcement Suite 1500 U. S. Nuclear Regulatory Commission 1100 Circle 75 Parkway Washington, D. C.
20555 Atlanta, Georgia 30339 IF7 Resident Inspector Mr. Robert Guild, Esq.
Ce;awba Nuclear Station Attorney-at-Law P. 0. Box 12097 Palmetto Alliance Charleston, South Carolina 29412 21351 Devine Street Columbia, South Carolina 29205 Mr. Jesse L. Riley Carolina Environmental Study Group 854 Henley Place Charlotte, North Carolina 28207 i
OFFICIAL COPY
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Duke Power Company Catawba Nuclear Station Supplemental Response:
An evaluation of the Construction Flushing Program has concluded that the scope and the methods used at Catawba are adequate and meet the requirements of ANSI N45.2.1, " Cleaning of Fluid Systems and Associated Components During Construction Phase of Nuclear Power Plants", except for the section of piping referred to in NCI 18,391.
All QA Condition 1 and 4 pipe is flushed under the Construction Flushing Program (QAP L-71) except for (1) the UHI section referred to in NCI 18,391; (2) the Diesel Exhaust Pipe; (3) sections of pipe associated with temporary jumpers; and (4) Liquid Waste System (WL) floor drains.
.(1) The UHI Pipe The UHI pipe was not included in the Construction' Test Program. When the. logic for Unit 2 was developed it was decided that the UHI would receive a high pressure blowdown functional test, a high pressure blow-down would satisfy the construction cleaning requirements.
Since the Unit 2 Catawba UHI pipe will not receive a high pressure blowdown and the low pressure blowdown will not adequately clean this pipe, it will be incorporated into the Construction Flushing Program.
(2) The Diesel Exhaust Pipe The Diesel Exhaust Pipe is not flushed due to the function of this pipe.
There is no need to clean this pipe in that any debris in this pipe will be blown out when the Diesel Engines are started. The debris in this l
pipe will not affect the operation of this system.
(3) Sections of Pipe Associated with Temporary Jumpers l
The Construction Test program does not call for cleaning these sections.
l There is no way for Construction to clean these small areas. These l
sections will receive final cleanup by Nuclear Production when the systems are started and their chemistry requirements are brought into j
proper specification.
(4) WL Floor Drains i
Floor drains are not included in the Construction Flushing Program. The
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floor drains are checked by Nuclear Production to assure they function properly prior to plant operation.
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Supplemental Report To SD 413-414/84-13 Page'Two CONCLUSION:
The. primary. objective is to assure that systems are cleaned to the point so that when they are' put into operation they (1) don't have any equipment damaged by debris in pipe and (2) don't have to go to extraordinary means to establish chemistry. The Program has been adequate except for the UHI System. The flush boundary for UHI pipe has now been incorporated into the Construction Flushing Program.
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