ML20133M528

Requests Addl Info Re 961031 Application for Amend to Coc for Paducah Gaseous Diffusion Plant

ML20133M528
Person / Time
Site:	07007001
Issue date:	01/15/1997
From:	Horn M NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
To:	John Miller UNITED STATES ENRICHMENT CORP. (USEC)
References
TAC-L32003, NUDOCS 9701220414
Download: ML20133M528 (2)

Text

4 January 150 1997 l

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Mr. James H. Miller i Vice President, Production j U. S. Enrichment Corporation '

2 Democracy Center 6903 Rockledge Drive Bethesda, MD 20817 l

SUBJECT:

CERTIFICATE AMENDMENT REQUEST - PADUCAH GASEOUS DIFFUSION )

PLANT AUTOCLAVE MANUAL ISOLATION SYSTEM (TAC NO. L32003) I l

Dear Mr. Miller:

This refers to your application dated October 31,1996, requesting an amendment to the certificate of compliance for the Paducah Gaseous Diffusion Plant to incorporate a new Technical Safety Requirement associated with the Autoclave Manual Isuation System.

Our review of your application has identified additional information that is needed before ,

final action can be taken on your request. The additional information, specified in the  !

enclosure, should be provided within 30 days of this letter. Please reference the above TAC No. in future correspondence related to this request. l if you have any questions regarding this matter, please contact me at (301) 415-8126. j l

Sincerely, '

Orig 1nct Signed By Merri Horn Project Manager

- Enrichment Section Special Projects Branch Division of Fuel Cycle Safety and Safeguards, NMSS Docket 70-7001 Certificate GDP-1

Enclosure:

As stated F05 ' I cc: Mr. Dale Jackson, DOE Mr. Steve Polston, PGDP DISTRIBUTION: w/ encl. (Control No. 030S)

Docket 70-7001 } NRC File Center

• PUBLIC Rlli KO'Brien, Rlli NMSS r/f ' FCSS r/f SP8 r/f GShear, Rlli G:\RAIPAD.A2 OFC SPB f SfB h _ S, Ppg NAME Nn:ij diey rtin DATE f //f97 //h97 l / [97 C = C ]VER E = COVER & ENGLOSURE N = 140 COPY OFFICIAL RECORD COPY 9701220414 970115 i PDR ADOCK 07007001f NFS EE CENE COPY 1 l

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Request for Additional Information Application Dated October 31,1996 United States Enrichment Corporation Paducah Gaseous Diffusion Plant Docket 70 7001 Please provide the following information:

1. Explain the basis for making the autoclave manualisolation system an AO system '

instead of a O system under the quality assurance program. Additionally, provide the page changes for SAR section 3.15.

2. Provide additional justification for not including the actuation device located in the  !

Area Control Room (ACR) in the TSR. TSR 3.2.2 does not require the Operations Monitoring Room to be manned. Both operators could be located in the surrounding grounds and be unable to reenter the facility or approach the crane bay exit to  !

actuate the manual isolation system in the event of a release.  ;

3. Explain why the time limit of 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> for taking action is believed to be appropriate; f' it appears to be inconsistent with other TSRs that have 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> response times.

4. The explanation of the surveillance needs to be expanded; as written it is not clear exactly how the test works. What is meant by " verifying" to output? Is the logic output actually used to close the containment valves? Is actual actuation of the pull buttons tested?

5. Explain why an annual frequency for performing the functional test of the system actuation devices is appropriate, other systems are tested on a quarterly basis.

6. There is no need to revise the Compliance Plan to reflect a pull type button instead of the push type button described in issue 3.

i ENCLOSURE