ML20153D364
| ML20153D364 | |
| Person / Time | |
|---|---|
| Site: | Paducah Gaseous Diffusion Plant |
| Issue date: | 09/18/1998 |
| From: | Toelle S UNITED STATES ENRICHMENT CORP. (USEC) |
| To: | Paperiello C NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| Shared Package | |
| ML20153D368 | List: |
| References | |
| GDP-98-0197, GDP-98-197, TAC-L32054, NUDOCS 9809250042 | |
| Download: ML20153D364 (2) | |
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USEC A Global Energy Company September 18,1998 GDP 98-0197 Dr. Carl J. Paperiello Director, Office of Nuclear Material Safety and Safeguards Attention: Document Control Desk United States Nuclear Regulatory Commission Washington, D.C. 20555-0001 Paducah Gaseous Diffusion Plant Docket No. 70-70(,1 Compliance Plan Issue 36 - Transmittal of Revision 2 of the Updated Seismic Hazard Analysis for NRC Approval (TAC No. L32054) i
Dear Dr. Paperiello:
The purpose of this letter is transmit the following document for NRC approval:
" Updated Probabilistic Seismic Hazard Analysis for the Paducah Gaseous Diffusion Plant, Paducah, Kentucky" Final Report, (Revision 2), Risk Engineering, Inc.,
September 18,1998.
In a letter dated May 13,1998 (Reference 1), the NRC requested additional information to complete its review of the seismic hazard re-analysis performed by Risk Engineering, Inc. (REI) that was originally submitted to the NRC on December 1,1997 and revised on March 6,1998 (References 2 and 3, respectively). On May 18-19,1998, a meeting was held in REI's offices in Boulder, Colorado I
to discuss the NRC's information request. As part of that meeting, the NRC identified several problems with the analysis documentation prepared by REI and its subcontractors. These problems were discussed at the meeting and and are further described in the NRC's June 2,1998 meeting b summary (Reference 4). Related deficiencies were also identified by PGDP Engineering personnel.
Subsequently, on June 8-10, 1998, the PGDP Engineering and Safety, Safeguards, and Quality organizations conducted a detailed surveillance in REI's offices of all work performed in support of the project. Deviations from procedural requirements were identified and corrective actions were implemented. PGDP plant personnel have wurked closely with REI and its subcontractors to ensure that Revision 2 of the REI seismic hazard analysis and the supporting documentation comply with the USEC Quality Assurance Program Description and implementing procedures.
j The enclosed Revision 2 of the seismic risk analysis completes USEC's response to the NRC's May l
13, 1998 questions. Based on discussions with Mr. Drew Persinko of your staff, it is our l
9909250042 990918 l
PDR ADOCK 070070')1 B
PDR 1-e, Bethesda, MD 20817-1818 Telephone 301-564-3200 Fax 301-564-3201 http://www.usec.com Offices in Livermore, CA Paducah,IW Portsmouth OH Washington, DC
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Dr. Carl J. Paperiello l
September 18,1998-GDP 98-0197, Page 2 l
understanding that the NRC would like to arrange a visit to REI to review the corrected analysis documentation. Please contact Steve Routh at (301) 564-3251 to arrange for the visit.
Should you have further questions related to this subject, please contact Steve Routh at (301) 564-3251. There are no new commitments contained in this submittal.
Sincerely, S. D. 63% r V
Steven A. Toelle Nuclear Regulatory Assurance and Policy Manager
References:
1.
Letter from Mr. Robert C. Pierson (NRC) to Steven A. Toelle (USEC),
"Paducah Gaseous Diffusion Plant Seismic Hazard Analysis," U.S. Nuclear Regulatory Commission, Docket No. 70-7001, May 13,1998.
2.
Letter from Steven A. Toelle (USEC) to Mr. Robert C. Pierson (NRC),
" Compliance Plan Issue 36 - Transmittal of Updatea Seismic Risk Analysia for NRC Approval," Letter No. GDP 97-0201, December 1,1997.
3.
Letter from Steven A. Toelle (USEC) to Dr. Carl J. Paperiello (NRC),
" Compliance Plan Issue 36 - Transmittal of Revision to Updated Seismic Hazard Analysis for NRC Approval," Letter No. GDP 98-0040, March 6, 1998.
4.-
NRC Memorandum from Drew Persinko to Robert C. Pierson, " Meeting Suramary - Paducah Seismic Hazard Study with U.S. Enrichment Corporation," June 2,1998.
Enclosure:
" Updated Probabilistic Seismic Hazard Analysis for the Paducah Gaseous Diffusion Plant, Paducah, Kentucky" Final Report, (Revision 2), Risk Engineering, Inc.,
September 18,1998.
cc:
- Mr. Robert C. Pierson, NRC-HQ (w/1)
NRC Region III Office (w/1)
NRC Resident Inspector, PGDP (w/1)
NRC Resident Inspector, PORTS (w/o)
Mr. Randall M. DeVault, DOE (w/1)
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