ML20217M370

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Submits bi-monthly Update on Progress of Mods to Upgrade Audibility of Criticality Accident Alarm Sys (Caas).Schedule for CAAS Audibility Upgrades Attached
ML20217M370
Person / Time
Site: Paducah Gaseous Diffusion Plant
Issue date: 09/29/1999
From: Toelle S
UNITED STATES ENRICHMENT CORP. (USEC)
To: Pierson R
NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
References
GDP-99-0178, NUDOCS 9910270207
Download: ML20217M370 (8)


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l-USEC A Global Energy Company September 29,1999 '

GDP 99-0178 I

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

Doeket No. 70-7001 Bi-Monthly Update on Progress of the CAAS Audibility Upgrade Project J

Dear Mr. Pierson:

In accordance with the United States Nuclear Regulatory Commission's (NRC) request of December 17,1998 (Reference 1), this letter provides the bi-monthly update on the progress of the modifications to upgrade the audibility of the criticality accident alarm system (CAAS).

All of the air accumulator tanks have been received and installed. The certificate amendment approving the requested Technical Safety Requirements (TSRs) for the new system was issued on August 20,1999 (Reference 2). Three facilities, C-746-Q, C-400 and C-420 have completed the i

transition to the new system and are operating under the new TSRs. In addition, functional testing has been completed for C-310 and construction work has been completed in C-331. A summary of the project schedule is included in the Enclosure.

Should you have any questions related to this subject, please contact me at (301) 564-3250 or Mark Smith at (301) 564-3244. There are no new commitments contained in this submittal.

Sincerely,-

EO

.-J Im i

Steven A.Toelle

\\(

Nuclear Regulatory Assurance and Policy Manager 9910270207 990929

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PDR ADOCK 0700 0 1 6903 Rockledge Drive, Bethesda, MD 20817-1818 Telephone 301-564-3200 Fax 301-564-3201 http://www.usec.com Omces in Livermore, CA Paducah, KY Portsmouth. OH Washington, DC l

Mr. Robert C. Pierson Septembe'r 29,1999 GDP 99-0178, Page 2

Enclosure:

Schedule for CAAS Audibility Upgrades

{

Reference:

1.

Letter from Robert C. Pierson (NRC) to Steven A. Toelle (USEC), " Schedule for

. Criticality Accident Alarm System Audibility Upgrades (TAC No. L32103),"

December 17,1998.

2.

Letter from Carl J. Paperiello (NRC) to James N. Adkins (USEC), "Paducah (PGDP) Gaseous Diffusion Plant Certificate Amendment Request: Criticality Accident Alarm System Audibility Upgrades (PGDP TAC No. L32111)," August 20,1999.

l cc: Patrick Hiland, NRC Region Ill Kenneth O'Brien, NRC Resident Inspector - PGDP David Hartland, NRC Resident Inspector - PORTS -

Randall DeVault, DOE Regulatory Oversight Manager 1

Enclosure GDP 99-0178 6 Pages l

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