ML20204B296

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Provides Monthly Update Rept on Progress of Installation of Seismic Upgrade Mods to Buildings C-331 & C-335,IAW Commitments Made in USEC
ML20204B296
Person / Time
Site: Paducah Gaseous Diffusion Plant
Issue date: 03/15/1999
From: Toelle S
UNITED STATES ENRICHMENT CORP. (USEC)
To: Pierson R
NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
References
GDP-99-0051, GDP-99-51, NUDOCS 9903220054
Download: ML20204B296 (5)
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i YESEC

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A Global Energy Company March 15,1999 GDP 99-0051 1

4 Mr. Robert C. Pierson Chief, Special Projects ' Branch Division of Fuel Cycle Safety and Safeguards, NMSS U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Paducah Gaseous Diffusion Plant (PGDP)

Docket No. 70-7001 Monthly Update on Progress of Scismic Upgrades to Buildings C-331 and C-335 1

Dear Mr. Pierson:

In accordance with USEC's commitments in our April 15,1998 letter (Reference 1), the purpose of this letter is to provide the monthly update on the progress of the installation of the seismic upgrade modifications to Buildings C-331 and C-335.

Issue 36 of DOE /OR-2026," Plan for Achieving Compliance With NRC Regulations at the Paducah Gaseous Diffusion Plant" (the Compliance Plan) requires that the modifications to increase the seismic capacity of Buildings C-331 and C-335 be completed by June 30,1999. However, as identified in our previous monthly status reports (References 2,3,4, and 5), USEC has determined that an additional 12 months will be required to complete the seismic upgrades to account for unanticipated construction difficulties and reduced worker productivity due to high temperatures.

A Certificate Amendment Request was submitted on January 12,1999 (Reference 6) to request NRC review and approval of a change in the schedule for completing these upgrades to June 30,2000.

USEC is continuing to implement productivity improvements. The rate oflocation completion has steadily risen to average 25 completions (cumulative rate for both buildings) per month. During February,32 locations were completed. The projected schedule for March shows 42 completions, which is very near the target completion rate of 47 needed by May to meet the proposed June 30, 2000 completion date. The enclosure to this letter provides the progress ofinstallation of the dg modifications through March 8,1999.

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9903220054 990313

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PDR ADOCK 07007001' C

ppe 6903 Rockledge Drive, Bethesda, MD 20817-1818 Telephone 301-564-3200 Fax 301-564-3201 http:hwww.usec.com Offices in Livermore, CA Paducah, KY Portsmouth, OH Washington. DC

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Mr. Robert C. Pierson March 15,1999 GDP 99-0051 Page 2 Should you have any questions related to this subject, please contact me at (301) 564-3250 or Steve Routh at (301) 564-3251. There are no new commitments contained in this submittal.

Sincerely,-

S. A.

I I

Steven A.Toelle Nuclear Regulatory Assurance and Policy Manager

References:

1. Letter from Steven A. Toelle (USEC) to Robert C. Pierson (NRC), " Schedule for Seismic Upgrades to Buildings C-331 and C-335," Letter No. GDP 98-0082, April 15,1998.
2. Letter from Steven A. Toelle (USEC) to Mr. Robert C. Pierson (NRC), "Paducah Gaseous Diffusion Plant, Docket No. 70-7001, Monthly Update on Progress of Seismic Upgrades to Buildings C-331 and C-335," Letter No. GDP 98-0217, dated November 16,1998.
3. Letter from Steven A. Toelle (USEC) to Mr. Robert C. Pierson (NRC), "Paducah Gaseous DifTusion Plant, Docket No. 70 7001, Monthly Update on Progress of Seismic Upgrades to Buildings C-331 and C-335," Letter No. GDP 98-0269, dated December 15,1998.
4. Letter from Steven A. Toelle (USEC) to Mr. Robert C. Pierson (NRC), "Paducah Gaseous Diffusion Plant, Docket No. 70-7001, Monthly Update on Progress of Seismic Upgrades a Buildings C-331 and C-335," Letter No. GDP 99-0019, dated January 15,1999.
5. Letter from Steven A. Todle (USEC) to Mr. Robert C. Pierson (NRC), "Paducah Gaseous Diffusion Plant, Docket No. 70-7001, Monthly Update on Progress of Seismic Upgrades to Buildings C-331 and C-335," Letter No. GDP 99-0037, dated i

February 16,1999.

6. Letter from Steven A. Toelle (USEC) to Dr. Carl J. Paperiello (NRC), " Certificate Amendment Request - Buildings C-331 and C-335 Seismic Upgrades," Letter No.

GDP 99-0012, dated January 12,1999.

Enclosure:

Schedule for Seismic Upgrades to Buildings C-331 and C-335 cc: NRC Region III Office NRC Resident Inspector-PGDP NRC Resident Inspector - PORTS Mr. Randall M. DeVault (DOE)

Enclosure to GDP 99-0051 Milestone Schedule for Seismic Upgrades to Buildings C-331 and C-335 Progress Through March 8,1999 i

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