ML20211M495

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Rev 16 to USEC-01 Application for NRC Certification of Paducah Gaseous Diffusion Plant.Rev Incorporates Changes to Technical Safety Requirements & Sar.Revision Bars Provided in right-hand Margin to Identify Changes
ML20211M495
Person / Time
Site: Paducah Gaseous Diffusion Plant
Issue date: 10/06/1997
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-97-0177, GDP-97-177, NUDOCS 9710140261
Download: ML20211M495 (30)


Text

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United States Ennchment Corporation 2 Democracy Center T.

c903 nocki.da. on<.

Gethesda. ' 4D 20817 Tel. t301)564 3200 Fax (301)564 3201 l

JAMES H. MILLER Dir: (301) 5G4-3300 VICE PRESIDENT, PRODUCTION Fax: (301) 571-82r9 October 6,1997 Dr. Carl J. Paperiello SERIAL: GDP 97-0177 Director, Ollice of Nuclear Material Safety and Safeguards attention: Document Control Desk U.S. Nuclear Regulatory Ce.nmission Washington, D C. 20555 0001 Paducah Gaseous Diffusion Plant (PGDP)

Docket No. 70-7001 Transmittal of Revision 16 to Paducah Certification Application

Dear Dr. Paperiello:

In accordance with 10 CFR Part 76, the United States Enrichment Corporation (USEC) hereby subrnits twenty (20) copies of Revision 16 (October 2,1997) to USEC-01, Application for United States Nuclear Regulatorj Commission Certification, Paducah Gaseous DifTusion Plant.

Revision 16 incorporates changes to the Technical Safety Requirements (TSR) and Safety Analysis Report (SAR). These changes were previously submitted for your review in accordance with //

10 CFR 76.45 and were approved as Amendment 8 to the Certificate of Compliance GDP-1 in your letter //

dated September 2,1997 (TAC NO. L32020). Revision bars are provided in the right hand margin to identify the changes Revision 16 was implemented on October 2,1997.

Also included with this submittal are replacement pages for the S AR (page LOEP-13/LOEP-14) and

~

the Emergency Plan (page 1-15/1-16). These pages were previously submitted to you with Revision 14, but reflected an incorrect date ofissuance for Revision 14.

9710140261 971006 PDR ADOCK 07007001 C

PDR i

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Dr Carl J. Paperiello October 6,1997 GDP 97-0177 Page 2 Should yon have any questions or comments on Revision 16, please call me at (301) 564 3309 or Steve Routh at (301) 564 3251. The enclosure identifies commitments made in this submittal.

Sincerely, bh t

es 11. Miller Vice President, Production

Enclosure:

Commitments Contained in this Submittal

Attachment:

USEC 01, Application for United States Nuclear Regulatory Commission Certification, Paducah Gaseous Diffusion Plant, Revision 16,-

Copy Numbers 567 through 586

Enclosure:

Aflidavit cc:

- NRC Region ill Oflice Copy Numbers 442,664 NRC Resident inspector - PGDP Copy Number 697 NRC Resident inspector - PORTS Copy Number 665 Mr. Joe W. Parks (DOE)

Copy Murnbers 641 through 644

OATil AND AFFIRhfATION I, James 11. hiiller, swear and aflirm 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 itevision 16 of the USEC Application for United States Nuclear Regulatory Commission Certification, Paducah Gaseous Diffusion Plant (USEC-01), 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.

j

1. hiiller On this 6th day of October,1997, the oflicer signing above personally appeared before me, is known by me to be the person whose name is subscribed to within the instrument, and acknowledged that he executed the same for the purposes therein contained.

In witness hereofI hereunto set my hand and oflicial seal.

dA

\\(0.

Notary Public

APPLICATION FOR UNITED STATES NUCLEAR REGUIATORY COMMISSION CERTIFICATIC?'

PADUCAll GASEOUS DIFFUSION PLANT REMOVE / INSERT INSTRUCTIONS REVISION 16 OCTOBER 2,1997 Remove Pages insert Pages VOLUME 1 List of Effective Pages List of Effective Pages LOEP 1 through LOEP 6, LOEP-1 through LOEP-6, LOEP-13/LOEP 14 LOEP 13/LOEP 14 Section 3.2 Section 3.2 3,210a/3 210b 3 210a/3.210b Section 3.6 Section 3.6 3.6 1/3.6 2 3.6 1/3.6-2 VOLUME 2 List of EITective Pages List of Effective Pages LOEP 1 through LOEP 6, LOEP 1 through LOEP-6, LOEP-13/LOEP-14 LOEP-13/LOEP 14 VOLUME 3 Emergency Plan Emergency Plan 1 15/1-16 1 15/1-16 VOLUME 4 List of Effective Pages List of Effective Pages ii, iii ii, iii Section 2.1 Section 2.1 2.1-45 2.1-45 Section 2.2 Section 2.2 2.2-30 2.2 30 Section 2.3 Section 2.3 2.3-46 2.3 46

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LOEP 14

SAR PGDP October 2,1997 Rev.16 on the feed line, pressure transmitter IrliS07, pressure

  • witches PSil 507 and PSL 507, steam supply isolation valves P%520, XV 524, and therOctober 2movent line block valve XV 565, and associated relays, solenoids, and switches. The pressure between the mpture discs is maintained between 9.5 and 19.5 psia.

The autoclave opening prevention system is used to prevent the opening of an autoclave when the pressure exceeds 1.25 psig and the autoclave gives a visual indication. System componcnts are the pressure transmitters PT 514 and PT 515, pressure switches PSI 514 and PSL 5t$, and associated relays and switches.

3.2.6 UF Cylinder flandling UF, feed is delivered to the feed facilities and stored in an interitu storage yard until a panicular cylinder assay is needed for feed. Cylinders are weighed and checked against fill limits. Weighing may l

occur on any openble accountability scale that has been calibrated to an adequate range and tolerance for I

the item being weighed. Each cylinder is inspected externally for any damage prior to placing in an I

autoclave for feed.

All feed cylinders haidled are nonnally empty or contain solid UF, and administrative controls prohibit the handling of 1 quid Uf, h. these are s except in emergency conditions.

3.2.6.1 Crancs g

The C 333 A and C 337 A overhead bridge :ranes handle only cylinders that are empty or contain Q

solid UP..

The two cranes in C 333 A and the north crane in C 337 A are 20-ton single book, U

pendant-controlled cranes. The C 333 A west crane hoist has a direct current (de) rectified shoe brake and an eddy current brake. The (de) rectified shoe brake is spring actuated in the event of a power loss.

The C 333 A cast crane hoist and C 337 A north crane hoist utillie a 'de) rectified shoc break and a mechanical ratchet and iawl backup brake in the case of shoe brake f.ilure. All of the fe~l facility l

cranes have a geared up/down limit switch des:gned to prevent exceeding the limits for lowedng or hoisting the load. When activated, the limit sveitch circuit wi' stop the motor and activate the shoe brake. To prevent the lifting hook from collkiing with the upper crane structure, each ctane uses a swivel bar attached to a wire hangirg frcm a padda type limit switch on,ae crane trolley, When the hook comes in contact with the swivel bar, the tension in the wire is released and the crane hoist motor is de-energized. Each of these cranes uses an H-frame type sling to lift the cylinders with its single hook.

The sotah crane at C 337 A is a 20-ton couble block, radio / pendant coatrolled crane with a lifting beam specifically designed for UF cylinders. The crane hoist has tu direct current (de) shoe brakes and one eddy current brake. One noist shoe brake is used as a holding brake, and the other shoe brake serves as an emergency brake. These brakes are spring ac uated in the event of a power loss. A geared up/down limit switch is connected to the cable drum for use in lowering or hoisting the load. When activated, the geared limit switch circuit will stop the motor and activate the brakes. This switch will reset automatically once the motor is reversed. Each crane is equipped with two paddle type limit switched that serve to prevent a lif;ing beam to upper :tane structure collision. Each paddle type limit switch has a weight that hangs on a wire from the crane trolley. If the lifting beam comes in contact with one of these weighn, the tension in the wire is released and the crane hoist iaotor is de-energized.

3.210a

a SAR PODP May 21,1997 g

Rev.10 3.2.6.2 Short Tenn Storage Both facilities contain cylinder yards for the short term storage of both full and empty cylinders.

The yards are equipped with saddles that prevent the rolling of cylinders and subsequent damage that could result from improper spacing of cylinders. Storage yards are discussed in Section 3.7.

O 3.210b

SAR PGDP October 2,1997 Rev.16 p

, 3.6 URANIUM !!EXAFLUORIDE SAMPLING AND TRANSFER FACILITY The C 360 Toll Transfer and Sampling Facility provides systems for receiving, sampling, transferring, and shipping cylinders containing UF.. This facility provides all operations necessary for the futullment of enrichment service contracts with private industry.

3.6.1 Description Material is not introduced into the enrichment cascade unless assurance is obtained that it meets feed composition and weight specifications. Feed cylinder samples are taken at C 360 along with the weighing required for accuracy to satisfy contractual obligations between the feed supplier and the enrichment facility. The same sampling and weighing requirements also apply to the enriched product. Weighing may occur on any operable accountability scale that has been calibrated to an adequate range and tolerance for the item being weighed.

The types of activities that take place in C 360 are described below.

Preheating Prior to s.mpling, an external inspection is performed on each cylinder to detect any physical damage that may have occurred during shipment or in plant handling, if serious damage is detected, the cylinder is not heated until corrective actions have been taken and verified by a certified inspector, o

A cold pressure check is made on each cylinder prior to heating. The pressure within the cylinder t]

is an indication of the purity of the UF. In the cylinder. Since UF. that meets feed grade specifications is at a pressure less than atmospheric at ambient temperature, higher pressure readings indicate the presence of noncondensible gases such u air or volatile contaminants that could cause overpressure of the cylinder when heated if the cylinder pressure is greater than 10 psia, the customer is requested to provide instructions to either return the cylinder or remove the noncondensibles by cold burping the cylinder at PGDP.

The cyilnder is positioned in one of the four 96 in. diameter containment type autoclaves in C-360 with the cylinder valve et the 12 o' clock position. The cylinder is connected to a manifold by means of a pigtail fabricated from copper tubing which has passed a hydrostatic test to 400 psig. After pressure testing all connections. the UF, cylinder valve is opened, the emergency cylinder valve closer is attached, the autoclave shell is closed, and a hydraulically operated rotating ring seals the movable shell of the autoclave to the fixed head. There are no pigtail hydrostatic retest requirements because plant experience has demonstrated that the pigtails will fail the connection / disconnection leak test due to thread wear and inspection long before there is any structural weakness in the pigtail.

IIeating A thermovent admits steam into the autoclave and bleeds atmospheric air from the shell. Autoclave temperature is controlled by utilizing a cascade control scheme within the feedback loop controller TIC *17. Information frorn the autoclave pressure and temperature instruments is continuously used to maintain a constant temperature (see Figure 3.61). The steam pressure is limited to a maximum of 8 psig which corresponds to a saturated steam temperature of 235'F. During initial heating, the cylinder is valved to a rupture disc on the manifold header during initial heating to mitigate the possibility of r

I 3.6 1 l

4 SAR PODP May 31,1996 Rev. 3 cylinder n:pture. The rupture disc will reliese cylinder contents to surge dmms at 100 psig (the lowest MAWP of cylinders heated). A pressure transmitter monitors the cylinder pressure and closes the steam supply valves if the cylinder pressure exceeds 90 psia, ne amount of standing water would be quite high during the initial moments of heating a cylinder since the autoclave control scheme calls for an autoclave temperature of 220'F with a maximum pressure of 4 psig, ne thermalinenia o the cold cylinder dictates that copious amounts of condensate will form (rarely to the extent that the water inventory control system is actuated, however). At this time, the actual water inventory is of little, if any, safety concern since the cylinder's contents are at well below atmospheric pressure.

As the cylinder warms, its pressure increases, but the level of standing condensate decreases accordingly since the cylinder no longer requires as much energy input, and thus a lower steam demand is required. At the time when water level is of its highest safety concern (cylinder contents liquefied, mobile and pressurized), the water level is actually at its lowest since the only steam demand necessary is to make up for ambient heat losses and the energy removed by UF, being fed to the cascade.

Sampling When the heating cycle is completed, the cylinder valve is closed, and steam is evacuated from the autoclave. The pigtail is porged and evacuated, the autoclave is opened (when indicated pressure is <

0.5 psig), the pigtail is disconnected and the cylinder is rotated to the 3 or 9 o' clock position to permit liquid sampling. The pigtail is reconnected and pressure tested and the cylinder valve is partially opened before closing the autoclave shell, ne steam block valve may be opened to maintain temperature during sampling.

During sampling, the inlet valve to de pipette in the sample cabinet is opened and the pipette is allowed to fill to a visible level on the viewing !evel window, which is made from material which is resistant to etching by UF.. The pipette sample evacuation valve is opened and the entire sampling system is flushed with liquid UF, to the evacuation dmms. The evacuation valve is closed and the pipette is valved to an evacuation source and evacuated that to ensure all UF, is iemoved from the pipette and sampling manifold. All system valves are closed and the pipette inlet valve is cpened to fill the pipette with liquid UF, until the liquid level covers one half to three fourths of the sighting port in the pipette housing. After c'esing the inlet valve, the sample is transferred to a sample comainer and the operation may be repeated to obtain duplicate samples. Following sampling, the pigtail is purged and removed from the UF. cylinder using the procedure discussed previously. The UR cylinder is then rotated to return the cylinder valve to the 12 o' clock position.

The crane carefully lifts the cylinder from the autoclave, places it on the air powered cylinder cart, weighs, and moves it outside the building to the hot storage area to cool for a minimum of three days for a 2%. ton cylinder or five days for a 10-ton cylinder. The cylinder can be moved to a cascade feed vaporization area or interim storage after the cooling period. The sample is analyzed and the data is used to assure that feed specifications are met.

1 3.6 2

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2.3-34 5

2.2-26 5

2.3-35 5

2.2-27 5

2.3-36 5

2.2-28 5

2.3-37 5

2.2-29 5

-2.3-38 5

2.2-30 16 2.3-39 5

2.2-31 5

2.3-40 5

2.2 32 5

2.3-41 5

2.2-33 5

2.3-42 5

2.2-34 5

2.3-43 5

2.3-44 5

2.3-1 5

2.3 5 2.3 2 5

2.3-46 16 O'

2.3-3 5

2.3-47 5

2.3-4 5

2.3-48 5

2.3-5 5

2.3-49 5

2.3-6 5

2.3-50 12 2.3 12 2.3-51 5

2.3-8 5

2.3-9 5

2,4-1 5

2.3-10 5

2.4-2 5

2.3 5 2.4-3 5

2.3 12 5

2,4-4 7

2.3-13 5

2.4-5 5

2.0-14 3

2.4-6 3

2.3-15 5

2,4-7 5

2.3-16 5.

2.4-8 5

2.3-17 5

2.4-9 5

2.3-18 5

2.4-10 5

2.3-19 6

-2.4-11 5

2.3-20 5

2.4-12 12 2.3-21 6

2.4-13 5

2.3-22 5

2,4-14 5

2.3-23 12 2.4-15 5

2.3-24 5

2.4-16 5

2.3-25 5

2.4-17 6

O m

- TSR PUDP October 2.1997 Rev.16

.SECTION 2.1 SPECIFIC TSRs FOR TOLL TRANSFER AND SAh!PLING FACILITY (C 360) 2.1.4 GENERAL LIMITING CONDITIONS FOR OPERATION 2.1.4.21 SCALES LCO 2.1.4.21:

The C-360 scale (s) used for verification of cylinder weight per LCOs 2.1.4.6, 2.1.4.10,2.1.4.12, and 2.2.4.4 shall be operable.

APPLICABILITY: Whenever the C-360 scale (s) is/are used for verification of cylinder weight.

l ACTIONS:

Condition Required Action Completion Time A. Scale discovered to be A.1 Administratively control scale to Immediately inoperable prevent use.

SURVEILLANCE REQUIREMENTS:

Surveillance Frequency O

SR 2.1.4.21-1 Calibrate NhtC&A scale ID 22 and 23 Annually V

(normal position near autoclave and basement at transfer station), to an adequate range and tolerance for the item being weighed, in accordance with Nh!C&A program requirements.

SR 2.1.4.21-2 Perform functional test of NhtC&A scale ID Daily 22 and 23 (normal position near autoclave and basement at transfer station) (i.e., check operation using test weights in accordance with NhfC&A program requirements).

BASIS:

All cylinder weights are assumed to be within the tolerances assumed in the accident analysis.

The calibration and testing of the scale to within the tolerances specified in the Nh!C&A program (which are much more stringent than the tolerances required by the accident analysis) assured that cylinder weights do not invalidate the accident analysis.

O V

2.1-45

TSR-PGDP October 2,1997 Rev.16

.SECTION 2.2 SPECIFIC TSRs FOR UF. FEED FACILITIES (C 333-A AND

(

C-337-A) 2.2.4 GENERAL LIMITING CONDITIONS FOR OPERATION 2.2.4.12 SCALES 1

LCO 2.2.4.12:

The feed facility scale (s) used for verification of cylinder weight per LCO 2.2.4.4 and 2.1.4.6 shall be operable.

APPLICABILITY: Whenever the feed facility scale (s) is/are used for verification of cylinder weight.

ACTIONS:

Condition Required Action Completion Time i

A. Scale discovered to be A.1 Administratively control scale to Immediately inoperable prevent use.

SURVEILLANCE REQUIREMENTS:

3 Surveillance Frequency

?

l SR 2.2.4.12-1 Calibrate NhiC&A scale ID 19 (C-333-A)

Annually and 21 (C 337-A), to an adequate range and tolerance for the irem beinng weighed, in accordance with NhtC&A program requirements.

SR 2.2.4.12-2 Performs functional test of NhtC&A scale ID Daily 19 (C-333-A) and 21 (C-337-A) (i.e., check eperc.t;Ur, o.shis L.d ww3hb in on.wrdance with Nh!C&A program requirements).

BASIS:

All cylinder weights are assumed to be within the tolerances assumed in the accident analysis.

The calibration and testing of the scales to within the tolerances specified in the NhtC&A program (which are much more stringent than the tolerances required by the accident analysis) assured that cylinder weights do not invalidate the accident analysis.

2.2-30 4

TSR PGDP October 2,1997 Rev.16

. SECTION 2.3 SPECIFIC TSRs FOR PRODl'CT AND TAILS WITilDRAWAL FACILITIES 2.3.4 GENERAL LihilTING CONDFlIONS FOR OPERATION 2.3.4.23 SCALES LCO 2.3.4.23:

The withdrawrJ fa:ility scale (s) used for verification of cylinder weight per LCOs 2.3.4.15, 2.3.4.17, 2.1.4.6, and 2.2.4.4 shall be operable.

APPLICABILITY: Whenever the withdrawal facility scale (s) is/are used for verification of cylinder weight.

ACTIONS:

Condition Required Action Completion Time A. Scale discovered to be A ! Administratively control scale to immediately inoperable prevent use, SURVEILLANCE REQUIRENTENTS:

Surveillance Frequency SR 2.3.4.23-1 Calibrate NMC&A scale ID 11 and 12 (C-310 Annually positions 3 and 4) and 13,14,15, and 16 (C 315 positions 1,2,3, and 4), to an adequate range and tollerance for the item being weighed, in accordance with NMC&A I

i program requirements.

SR 2.3.4.23-2 Perform functional test of NMC&A scale ID Prior to placing the 11 and 12 (C-310 positions 3 and 4) and 13, cylinder in the withdrawal 14,15, and 16 (C-315 positions 1,2,3, and position.

4) (i.e., check operation using test weights in accordance with NMC&A program reauirements).

BASIS:

All cylinder weights are assumed to be within the tolerances assumed in the accident analysis.

The calibration and testing of the scale carts to within the tolerances specified in the NMC&A program (which are much more stringent than the tolerances required by the accident analysis) assured that cylinder weights do not invalidate the accident analysis.

2.3-40

- _ _ _ _ _ _ _ - _ _ -