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MONTHYEARML20135D7081997-02-28028 February 1997 Discusses Ltrs for Portsmouth Gaseous Diffusion Plant & 960419 & 0815,for Paducah Gaseous Diffusion Plant Requesting Exclusions of Areas within USEC Leased Areas from Criticality Accident Alarm Sys Monitoring Project stage: Approval ML20147H0981997-03-31031 March 1997 Forwards Response to Request for Addl Info Re Paducah Gaseous Diffusion Plant & Portsmouth Gaseous Diffusion Criticality Accident Alarm Sys Monitoring Exclusion Requests,Changing Due Date to 970228 Project stage: Request ML20138D4021997-04-0707 April 1997 Forwards Responses to Questions Concerning Paducah & Portsmouth GDP Criticality Accident Alarm Sys Monitor Exclusion Requests Project stage: Other ML20217F4441997-10-0303 October 1997 Ack Receipt of 970915 Application to Amend Coc GDP-1 Re Product & Tails Withdrawal Criticality Accident Alarm Sys. Application Is Acceptable for Formal Review.Completion of Review Is Anticipated by 980115 Project stage: Approval ML20217F8061997-10-0707 October 1997 Requests Technical Assistance in Reviewing Certificate Amend Request for Paducah Gaseous Diffusion Plant to Revise TS Requirement on Criticality Accident Alarm System for Product Withdrawal Facilities Project stage: Approval ML20198R6521998-01-14014 January 1998 Informs That Review Will Not Be Completed by 980115 Due to Other Activities.Review Should Now Be Completed by 980331 Project stage: Other ML20203A2301998-02-12012 February 1998 Requests Addl Info Re 970915 Application for Amend to Certificate of Compliance Revising Technical Safety Requirement 2.3.4.7, Criticality Accident Alarm Sys, Required Action A.1.5 Project stage: Approval ML20248L2121998-03-10010 March 1998 Submits TAR Re Review of Request for Criticality Accident Alarm Sys (CAAS) Exclusion for Portsmouth Gaseous Diffusion Plants & Paducah Gaseous Diffusion Plant Project stage: Approval ML20216J0531998-03-13013 March 1998 Provides Response to NRC RAI on Certificate Amend Request Dealing W/Product & Tails Withdrawal Facility Criticality Accident Alarm Sys.Info Requested Provided in Encl 1 Project stage: Response to RAI ML20216H2691998-04-14014 April 1998 Informs of Inability to Complete Review of Amend Request by 980331 as Indicated in .Currently Anticipates Completion by 980529 Project stage: Approval ML20248K8571998-06-0505 June 1998 Informs That Staff Was Unable to Complete Review of Certificate Amend Request by 980529,due to Other Activities. Completion of Review Anticipated by 980630 Project stage: Approval ML20236N8231998-07-0909 July 1998 Informs That NRC Review of Application Identified Addl Info, Needed Before Final Action Can Be Taken on Request Re Paducah Certificate Amend Request for Product & Tails Withdrawal Criticality Accident Alarm Sys Project stage: Approval ML20237C6991998-08-18018 August 1998 Forwards Response to NRC 980709 RAI Re Certificate Amend Request Revising Technical Safety Requirement 2.3.4.7 Re Product & Tails Withdrawal Criticality Accident Alarm Sys Project stage: Other ML20195J8771998-11-20020 November 1998 Informs That Staff Anticipates Completing Paducah Certificate Amend Request Re Product Tails Withdrawal Criticality Accident Alarm Sys,By 981231 Due to Other Activities Project stage: Approval ML20197G6811998-12-0707 December 1998 Forwards Copy of Compliance Evaluation Rept Prepared to Support Amend of Coc GDP-1 & Copy of Notice of Amend Which Has Been Forwarded to Ofc of Fr for Publication Project stage: Other ML20199G2161999-01-14014 January 1999 Forwards Amend 23 to Coc GDP-1,revising TS Requirement 2.3.4.7 on Product & Tails Withdrawal Facilities Criticality Accident Alarm Sys Project stage: Approval ML20202G2541999-02-0101 February 1999 Rev 37 to USEC-01,application for NRC Certification,Paducah Gaseous Diffusion Plant.Rev Incorporates Changes to Technical Safety Requirements Previously Submitted & Approved as Amend 23 to Coc GDP-1 Project stage: Request ML20195H4541999-03-0101 March 1999 Responds to NRC 981204 RAI Re Licensee Request for Exclusion of Areas within Licensee Leased Areas from Criticality Accident Alarm Sys Monitoring.Update Documents,Originally Submitted as Part of Original Request,Encl Project stage: Request 1998-02-12
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UNITED STATES j
E NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555 0001 8
k.....,o July 9, 1998 Mr. James H. Miller Vice President, Production U. S. Enrichment Corporation 2 Democracy Center 6903 Rockledge Drive Bethesda, MD 20817
SUBJECT:
PADUCAH CERTIFICATE AMENDMENT P.EQUEST - PRODUCT AND TAILS WITHDRAWAL CRITICALITY ACCIDENT ALARM SYSTEM (TAC NO. L32047)
Dear Mr. Miiler:
This refers to your application dated September 15,1997, requesting an amendment to Certificate of Compliance GDP-1 for the Paducah Gaseous Diffusion Plant to revise Technical Safety Requirement (TSR) 2.3.4.7, Required Action A1.5 to provide additional time to operate the withdrawal station in normal steady state operation should the criticality accident alarm system (CAAS) be declared inoperable. This would allow the plant to continue withdrawing product by filling the accumulators.
Our review of your application has identified additional information that is needed before final action can be taken on your request. This was discussed with Mr. Mark Smith and Mr. Steve Stout of your staff on June 26. Currently, the TSR would allow the in-progress cylinder to complete the filling cycle;it would not allow stopping and restarting of the filling process. As proposed, the TSR would allow stopping and/or restarting as necessary to complete the filling cycle. The staff is concemed that allowing stopping and restarting the process introduces human interactions and/or active engineered control input which would increase the probability a
of maloperation. Please provide justification for why USEC believes it should be allowed to restart the cylinder filling operation once stopped. The staff has the same concem with normal" operation of withdrawai compressors, condensers, and accumulators. Please provide additional justification for why these operations can be stopped and restarted while the CAAS is inoperable.
The additional information chould be provided within 30 days of this letter. Please reference the j
above TAC No. in future correspondence related to this request.
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PDR ADOCK 07007001 PDR C
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J. H. Miller, USEC 2
Please note that this amendment was scheduled to be complete on June 30. We anticipate completing the review within 30 days of receiving your response, if you have any questions regarding this matter, please contact me at (301) 415-8126.
Sincerely, Original Signed By Merri Hom, Project Manager Enrichment Section Special Projects Branch Division of Fuel Cycle Safety and Safeguards, NMSS Docket 70-7001 Certificate GDP-1 cc: Mr. Howard Pulley, PGDP Mr. Steve Toelle, USEC DISTRIBUTION: (Control No. 320S)
Docket 70-70o1 (NRC File CenterA PUBLIC Rill KO'Brien, Rill NMSS r/f FCSS r/f SPB r/t PHiland, Ritt PPatel p:raicprod.mh OFC SPB C'
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DATE 9 /9/98 98 7M98 C = COVER -
E = COVER & ENCLOSURE N = NO COPY OFFICIAL RECORD COPY I
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