ML20135F590
| ML20135F590 | |
| Person / Time | |
|---|---|
| Site: | Portsmouth Gaseous Diffusion Plant |
| Issue date: | 03/07/1997 |
| From: | John Miller UNITED STATES ENRICHMENT CORP. (USEC) |
| To: | Paperiello C NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| GDP-97-0032, GDP-97-32, NUDOCS 9703130125 | |
| Download: ML20135F590 (9) | |
Text
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a United States Enrichment Corporation
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2 Democracy Center 6903 Rockledge Drive j
Bethesda. MD 20817 Tel: (301)S64 3200 United States Enrichinent Corlmration JAMES H. MILLER Dir: (301) 564-3309 VICE PRESIDENT, PRODUCTION Fax: (301) 571-8279 March 7,1997 Dr. Carl J. Paperiello SERIAL: GDP 97-0032 Director, Office of Nuclear Material Safety and Safeguards Attention: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Portsmouth Gaseous Diffusion Plant (PORTS)
Docket No. 70-7002 Transmittal of Revision 7 to Portsmouth Certification Application
Dear Dr. Paperiello:
In accordance with 10 CFR Part 76, the United States Enrichment Corporation (USEC) hereby submits twenty (20) copies of Revision 7 (March 7,1997) to USEC-02, Application for United States Nuclear Regulatory Commission Certification, Portsmouth Gaseous Diffusion Plant.
Revision 7 incorporates the following changes:
Section 2.5.1 of the Technical Safety Requirements (TSRs), Withdrawal Station Operational Modes, has been revised for the changes that were reviewed and approv Amendment 1 (2/27/97) to the PORTS Certificate of Compliance, GDP-2.
I The Basis statements for TSR Sections 2.2.3.5 and 2.7.3.4 have been revised to clarify the requirements for the draining of coolant before the addition of oxidants for cell treatment.
These changes have been reviewed in accordance with the requirements of 10 CFR 76.68 and I
have been determined not to require prior NRC approval.
Revision bars are provided in the right-hand margin to identify the changes.
130003 9703130125 970307 PDR ADOCK 07007002 lElElE!%,E,E%' E C
PDR Offices in Paducah. Kentucky Portsmouth. Ohio Washington. DC J
Dr. Carl J. I aperiello March 7,1997 GDP 97-0032 Page 2 Should you have any questions or comments on Revision 7, please call me at (301) 564-3309 or Steve Routh at (301) 564-3251.
Sincerely, mes H. Miller
' ice President, Production
Attachment:
USEC-02, Application for United States Nuclear Regulatory Commission Certification, Portsmouth Gaseous Diffusion Plant, Revision 7, Copy Numbers I through 20
Enclosure:
Aflidavit 1
cc:
NRC Region III Office Copy Numbers 21,172 NRC Resident Inspector - PGDP Copy Number 22 NRC Resident Inspector - PORTS Copy Number 23 Mr. Joe W. Parks (DOE)
Copy Numbers 24 through 28
9 OATH AND AFFIRMATION I, James H. Miller, swear and affirm that I am Vice President, Production, of the United States Enrichment Corporation (USEC), that I am authorized by USEC to sign and file with the.
Nuclear Regulatory Commission this Revision 7 of the USEC Application for United States Nuclear Regulatory Commission Certification, Portsmouth Gaseous Diffusion Plant (USEC-02), that I am familiar with the contents thereof, and that the statements made and matters set forth therein are true and correct to the best of my knowledge, information, and belief.
1 l-M-
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m H. Miller Subscribed to before me on this 7 day of ef:d/o.1997.
f$idcVwmau Notary Public LERNCE R. LAWSON NOTARY PUBLIC STATE OF MAkYLAND Certilcow hied in Montgomery Coun*f Canmbsion Expires August 1,1997 d
l NRC Certification Application Portsmouth Gaseous Diffusion Plant (USEC-0:0 Revision 7 Remove / Insert Instructions Remove Pages Insert Pages l
Technical Safety Requirements - Volumc 4 1
Do not remove section tabs List of Effective Pages List of Effective Pages ii, iii ii, iii l
Section 2.2 Section 2.2 2.2-12 2.2-12 Section 2.5 Section 2.5 2.5-2 2.5-2 Section 2.7 Section 2.7 2.7-9 2.7-9
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TSR-PORTS March 7,1997 j
Rev.'7 LIST OF EFFECTIVE PAGES 4
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Pages Revision Pages Revision i
6 2.1-23 5
iii 6
2.1-24 5
l iv 6
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TSR-PORTS March 7,1997 key.7 1
i LIST OF EFFECTIVE PAGES (Continued)
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i TSR-P' ORTS March 7.1997 l
Rev. 7 4
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SECTION 2.2 SPECIFIC TSRs FOR X-330 AND X-333 FACILITIES
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2.2.3 LIMITING CONTROL SETTINGS, LIMITING CONDITIONS FOR l
OPERATION, SURVEILLANCES 2.2.3.5 Coolant Removal APPLICABILITY: Cascade Operational Mode IV j
l LCO:
Cell and applicable Freezer Sublimer (F/S) coolant systems shall be drained of coolant before addition of oxidants for cell treatment.
ACTIONS:
Condition Required Actions Completion Time A.
Failure to drain coolant prior A.1 Evacuate cell contents 1 Hour to adding oxidants and there are no indications of a reaction B.
Failure to drain coolant, rior B.1 Stop cell / equipment Immediately to adding oxidants and there motors
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are indications of a reaction AND
!O B.2 Drain coolant 1 Hour SURVEILLANCE REQUIREMENTS:
Frequency Surveillance Each cell treatment SR 2.2.3.5.1 Verify and document the removal of cell coolant prior to the initial charge of oxidants.
BASIS:
In the event of a leak from the coolant system to the process gas, the failure to control the concentrations of coolant and CIF /F within the cell can form explosive mixtures that in the 3 2 presence of an ignition source could over pressure the cell and release toxic materials. The
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draining of coolant includes the evacuating of the coolant system to between 18 and 30 inches
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of Hg for the X-27 and X-29 size equipment. The other equipment sizes have no specific
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coolant evacuation requirement other than for the system pressure to be below atmospheric l
pressure. The indications of an exothermic reaction are usually rapid pressure spikes and/or a
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rapid increase in temperature. A leaking block valve between a F/S that has a leaking cooler and the host cell could allow coolant and treatment gases to mix and therefore potentially form g
a highly exothermic reaction mixture [SAR 4.1.1.2.2 Case C-13].
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2.2-12
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TSR-PORTS March 7.1997 Rev.7 es SECTION 2.5 SPECIFIC TSRs FOR X-326 ERP, X-333 LAW, AND X-330 TAILS b
WITHDRAWAL STATIONS 2.5.1 WITHDRAWAL STATION OPERATIONAL MODES I
Preparation Withdrawal station checkout performed, UF cylinder weighing, 6
inspection and hookup completed.
II Compression /
Withdrawal loop compressors mnning, loop UF supply suction 6
Liquifaction valve open, irlet valve to UF condenser open and liquifaction of 6
UF is based r temperature / pressure conditions.
6 III Withdrawal Liquid UF is draining into a cylinder; filled cylinders are being 6
disconnected, weighed or placed by crane into local storage for cool down.
IV Standby Withdrawal loop compressors shutdown or operating on recycle, l
l withdrawal leop UF supply suction valve open or closed, vent l
6 valve (s) establishing a vent parth from the compression loop to the l
cascade are oped or closed. The withdrawal loop may still contain l
4 stored UF but station pressure remains below l
6 atmospheric.
l AU V
Transport Cylinders being moved from local storage lot for further handling and storage.
VI Shutdown Withdrawal loop compressors not running, withdrawal loop UF6 supply suction valve closed and UF evacuated from the loop.
6 Accumulators may still contain some UF -
6 Iv 2.5-2
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.TSR-PORTS March 7.1997 Rev.7
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. y SECTION 2.7 SPECIFIC TSRs FOR X-326 CASCADE FACILITY 2.7.3 LIMITING CONTROL SETTINGS, LIMITING CONDITIONS FOR OPERATION, SURVEILLANCES 2.7.3.4 Coolant Removal APPLICABILITY: Cascade Operational Mode IV LCO:
Cell coolant systems shall be drained of coolant before addition of oxidants for i
cell treatment.
ACTIONS:
Condition Required Actions Completion Time A.
Failure to drain coolant prior A.1 Evacuate cell contents 1 Hour to adding oxidants and there are no indications of a reaction B.
Failure to drain coolant prior B.1 Stop cell / equipment motors Immediately to adding oxidants and there AND are indications of a reaction O
B.2 Drain coolant 1 Hour N)
SURVEILLANCE REQUIREMENTS:
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Frequency Surveillance d
Each cell treatment SR 2.7.3.4.1 Verify and document the removal of cell coolant prior to the initial charge of oxidants.
BASIS:
In the event of a leak from the coolant system to the process gas, the failure to control the concentrations of coolant and CIF /F within the cell can form explosive mixtures that in the 3 2 presence of an ignition source could over pressure the cell and release toxic materials. The
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draining of coolant includes evacuating of the coolant system to between 18 and 30 inches of Hg for the X-27 and X-29 size equipment. The other equipment sizes have no specific coolant evacuation requirement other than for the system pressure to be below atmospheric presmre.
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The indications of an exothermic reaction are usually rapid pressure spikes and/or a npid increase in temperature [SAR 4.1.1.2.2 Case C-13].
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2.7-9 i