ML20195H493
| ML20195H493 | |
| Person / Time | |
|---|---|
| Site: | Paducah Gaseous Diffusion Plant |
| Issue date: | 11/16/1998 |
| From: | Toelle S UNITED STATES ENRICHMENT CORP. (USEC) |
| To: | Pierson R NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| GDP-98-0256, GDP-98-256, NUDOCS 9811240012 | |
| Download: ML20195H493 (3) | |
Text
.
USEC A Global Energy Company November 16,1998 GDP 98-0256 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 Seismic Upgrades to Buildings C-331 and C-335
Dear Mr. Pierson:
In accordance with USEC's commitments in our April 15,1998 letter (see the reference), 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.
An update on the progress of the C-331 and C-335 seismic modifications was provided to the NRC in a telephone call between Dr. Carl Paperiello (NRC) and Mr. George Rifakes (USEC) on October 29,1998, following an evaluation of the overall project conducted by consultants retained by USEC.
As discussed in that call, USEC has determined that the seismic upgrades to these buildings cannot be completed by June 30,1999 as required by Issue 36 of DOE /ORO-2026, " Plan for Achieving If Compliance With NRC Regulations at the Paducah Gaseous Diffusion Plant" (the Compliance Plan).
I/
. Construction activities in the buildings have proven to be substantially more difficult than originally anticipated. In numerous locations, a significantly greater than expected effort has been required to a
remove and relocate interferences, remove existing steel, and install the new steel. These N
7 e
unanticipated difliculties, coupled with the reduced weker productivity experienced in the high heat conditions of the process buildings, are projected to more than double the original estimated cost of the project and will result in a delay of approximately 12 months in the overall construction schedule.
A Certificate Amendment Request is in preparation to modify the Plan of Action and Schedule
[
associated with Compliance Plan Issue 36 to reflect a revised date for completion of the seismic modifications in Buildings C-331 and C-335. USEC will submit this Compliance Plan change to the Department ofEnergy (DOE) for approval by December 11,1998. Two weeks following receipt of the DOE letter approving the changes to Compliance Plan Issue 36, USEC will submit the associated
. Certificate Amendment Request to the NRC for approval.
9811240012 981116 PDR ADOCK 07007001 C
PDR 6903 Rockledge Drive, Bethesda, MD 20817-1818 Telephone 301-564-3200 Fax 301-564-3201 http://www.usec.com Offices in Livermore, CA Paducah, KY Portsmouth, OH Washington, DC
~
Mr. Robert C. Pierson November 16,1998 GDP 98-0256, Page 2 In addition, the implementation difficulties noted above have necessitated a review of the construction sequence previously described in Reference 2 in an effort to increase efficiency and productivity associated with installation of the seismic modifications. Upon completion of this review, USEC will submit, under separate cover, changes to the current construction sequence described in Reference 2.
Should you have any questions related to this subject, please contact me at (301) 564-3250.
Commitments contained in this submittal are identified in the enclosure.
Sincerely, 4
5.D.(behg Steven A. Toelle Nuclear Regulatory Assurance and Policy Manager
References:
- 1. Letter fro:n 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 James H. Miller (USEC) to Mr. Robert C. Pierson (NRC), " Response to NRC Request for Additional Information Concerning Seismic Upgrade USQs (TAC No. L32028)," Letter No. GDP 97-0166, September 19,1997.
Enclosure:
Commitments Contained in this Submittal cc: NRC Region III Office NRC Resident Inspector - PGDP NRC Resident Inspector - PORTS Mr. Randall M. DeVault (DOE) l l
F. '
O'
.a
'g
,s Enclosure GDP 98-0256 Page1ofI Commitments Contained in this Submittal 1.
USEC will submit the Compliance Plan change addressing the revised date for completion of the Building C-331 and C-335 seismic modifications to the Department of Energy (DOE) for approvalby December 11,1998. Two weeks following receipt of the DOE letter approving the changes to Compliance Plan Issue 36, USEC will submit the Certificate Amendment Request to the NRC for approval.
l 1
a I
4-n w
w w
- -