ML20150D453

Forwards Addl Info to Suppl Licensee Re Commitment to Develop Handling,Operating & Safety Procedures for Toxic Hazardous Chemical,Procedures for Environ Permit Amends & Accident Analysis for Osmium Hexafluoride Release

ML20150D453
Person / Time
Site:	05000604
Issue date:	03/15/1988
From:	Bell D ALL CHEMICAL ISOTOPE ENRICHMENT, INC.
To:	Thompson H NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM), NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
References
29143, NUDOCS 8803240268
Download: ML20150D453 (11)

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_ jf RETURN .TO 39FSF N /b hi/GiemM, Muc. 'zf All Chemical isotope Enrichment, Inc. N DOCKET NO. 50-604

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U. S. Nuclear Regulatory Ocnnissicn 1k  ;

Document Control Desk g Office Nuclear Material Safety & Safeguards p Washingtm, D.C. 20555 g

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Attenticn: Mr. Hugh L. Thmpscn, 55396-MSS Docket Material

Reference:

AlChemIE, Inc. letter dated February 3, 1988, addressing NRC's request, dated Decmber 28, 1987, for additicnal infonnaticn Gentlemen:

On February 9, 1988, representatives fran AlChemIE met with the NRC to discuss various itens related to the licensing of AlOxmIE Facility-2, Oliver Springs. In the Mawien of the envircreental responses subnitted by AlChanIE in the above referenced letter, Mr.

Jim Hammelman, SAIC, verbally requested additicnal information.

Submitted as attachnents, hereto,'is the additicnal information.

This includes:

1. AlOrmIE's ccmnitment to develop handling, operating and safeh procedures for toxic, hazardous chanicals. /

2. Procedures for Envircnnental Pennit amendnents

3. An Accident Analysis for an osnitzn hexafluoride release

4. Expected Water Usage Should you have any questicns, please ocntact Mr. William Pfeifer at AlChemIE.

Sincerely, S 4 ALOEMIE, INC. <' 4lt, \\

/f7g 93 2 Dennis L. Bell #j Chief Executive Officer 9 M /

g 32 g g g$[OON 4 Enclosures 4 cc: Dr. A. Thcmas Clark, Jr. /NRC g pyfp &L Pine Ridge Office Park, Suite 202-B 702 I!Iinois Ave., Ook Ridge, TN 37830 (6 5) 482-0029

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l Handling of Toxic, Hazardous Chemical Compounds i

l In that the majority of the feedstock compounds utilized by AlChemIE for isotopic enrichment in the gas centrifuge are toxic and hazardous, extreme care must be taken to protect operations personnel and to prevent an inadvertent release to the environment. For each feedstock compound being processed, detailed handling and operating procedures will be developed.

More specifically, manufacturers (suppliers) of the feedstock compounds are required to provide material safety data sheets for the toxic and hazardous compounds. These data sheets contain information en:

1. Physical and chemical properties

2. Chemical reactivity

3. Stability

4. Fire hazard

5. Fire fighting technique l l

6. Toxicology i

7. First aid i

8. Industrial hygiene practices I

9. Handling spills j l

10. Corrosivity to materials of construction l

11. Storage requirements

12. Disposal of unused materials

13. Disposal of containers l

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AlChemIE will use this data and other data supplied by the manufacturer to develop handling, operating, and safety .

1 This data will also be used for I procedures for each compound.

i training personnel.

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. . , , "t . l PROCEDURES FOR ENVIRONMENTAL PERMIT AMENDMENTS AT ALCHEMIE FACILITY 2 - OLIVER SPRINGS I. TENNESSEE DEPARTMENT OF HEALTH AND ENVIRONMENT (TDHE) NATIONAL 1

POLLUTION DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT Proposed Amendment Process:

1. AlchemIE will notify TDHE and the City of Oliver Springs of any proposed changes in waste water processing requirements; utility water processing requirenients; feed compound additions or deletions and/or other items that could possibly require a NPDES permit amendment. This notification will be given to TDHE and the City of Oliver Springs prior to the proposed action.

2. AlChemIE will meet with TDHE NPDES personnel and City of Oliver Springs personnel for detailed discussions of the proposed change.

3. AlChemIE will await TDHE NPDES personnel comments with respect to NPDES permit requirements.

4. AlchemIE will meet with City of Oliver Springs personnel to discuss TDHE requirements. AlChemIE and the City of Oliver Springs will enter into an agreement with respect to TDHE requirements.

5. A revised NPDES Permit Application will be submitted to TDHE by the City of Oliver Springs reflecting the proposed AlChemIE action and the City of Oliver Springs treatment / discharge process.

6. TDHE will process the application, issue a draft permit, and place the application on a 30-day public notice.

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7. TDHE will- issue a revised NPDES permit, assuming all requirements are satisfied, after the 30-day public notice has expi red.

AlChemIE will not initiate any facility modification or feed compound addition / deletion until the above process has been completed to the satisfaction of TDHE and the City of Oliver Springs.

NOTES:

1. AlChemIE will not require a NPDES permit at.AlChemIE Facility 2 - Oliver Springs. All waste water and utility water will be discharged through the City of Oliver Springs treatment systems subject to an agreement between AlchemIE and the City of Oliver Springs.

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II. TENNESSEE DEPARTMENT OF HEALTH AND ENVIRONMENT, DIVISION OF SOLID UASTE MANAGEMENT COORDINATION A. SOLID WASTE MANAGEMENT:

1. AlchemIE will notify TDHE of any proposed changes in their Solid Waste Management Plan that could affect the pick up and disposal of solid waste by a private contractor. This notification will be given to TDHE prior to the proposed action.

2. AlChemIE will meet with TDHE Solid Waste personnel for detailed discussions of the proposed change.

3. AlChemIE will await TDHE Solid Waste personnel comments with respect to solid waste disposal requirements.

4. A1ChemIE will revise their Solid Waste Management Plan based upon TDHE suggestions. However, AlChemIE will endeavor to contract with a private company for pick up and disposal of solid waste.

B. CLASSIFIED WASTE MANAGEMENT:

1. AlChemIE will work directly with DOE for the disposal of classified materials.

2. DOE will work directly with TDHE for disposal of classified materials.

C. HAZARD 0US WASTE MANAGEMENT:

1. AlChemIE will notify TDHE of any proposed changes in feed compounds and proposed changes in the Hazardous Waste Management Plan that could affect pick up and disposal of

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i hazardous waste by a private contractor. This notification will be given to TDHE prior to the proposed l action.

2. AlchemIE will meet with TDHE Hazardous Waste personnel for detailed discussions of the proposed change.

3. AlChemlE will await TDHE Hazardous Waste personnel comments with respect to hazardous waste management and disposal requirements.

4. AlChemIE will revise their Hazardous Waste Management Plan based upon TDHE requirements. However, AlChemlE will endeavor to contract with a private company for pick up.and disposal of hazardous waste.

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l III. TENNESSEE DEPARTMENT OF HEALTH AND ENVIRONMENT, AIR POLLUTION CONTROL (APC)_ PERMIT Proposed Amendment Process:

1. AlChemIE will notify TDHE of any proposed facility changes that would create or delete an emission point. In addition, TDHE will be notified of proposed new feed compounds or deletion of feed compounds. This notification will be given to TDHE prior to the proposed action.

2. A1ChemIE will meet with TDHE, APC personnel for detailed discussions of the proposed change.

3. AlchemIE will await TDHE, APC comments with respect to permit requirements.

4. A1ChemIE will prepare and submit an APC Construction Pennit indicating proposed change to the existing permit.

5. TDHE, APC will process the application and place the application on public notice.

6. TDHE, APC will issue the requested construction permit, assuming all requirements have been satisfied.

7. A1ChemIE will make requested changes.

8. AlChemIE will prepare and submit an APC Operating Permit. ,

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9. TDHE, APC will issue the requested operating permit, assuming all requirements have been satisfied.

AlchemIE will not initiate any facility modification or feed compound additions / deletions until the above process has been -i completed to the satisfaction of TDHE.

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1 ACCIDENT ANALYSIS-0SMIUM HEXAFLUORIDE RELEASE l

Osmium is one of the more than 31 elements which may be isotopically (

enriched by gas centrifuge. The feed material for enrichment of osmium i is osmium hexafluoride (OsF 6 ) held in~ feed containers containing 539 lb l of OsF 6. The possibility for a release of OsF6 during the transport and connection exists due to a breach of the feed vessel from mishandling or improper connection. If a breach of a feed vessel occurs, the resulting off-site concentrations can be determined.

Assume a feed vessel breach occurs and results in the release and l reaction of 10% of the vessel's content. If OsF6 reacts like UF6 in ,

contact with moist air, the following reaction takes place: )

OsF6 + 2H2O > 4HF + Os0 F22 This reaction would result in 54 lb (1.49 moles) OsF6 reacting to form 6.45 Kg (322 moles) of Hydrogen Fluoride (HF) . HF is a colorless gas which is toxic and has a Threshold Limit Value (TLV) of 2.5 mg/m 3.

The CPDF building has a volume of 4.58 x 10 6 ft3 and a total exhaust ,

rate of 129,600 ft /3 min. This results in one complete air change every i 35.35 minutes. If the entire HF release is uniformly exhausted in one l air change, a release rate of 3.07 gm/sec results.

If the release is assumed to be exhausted from the top of the 75-ft i high building and with no additional plume rise or turbulent effects, I the resulting ground level concentrations at the plume centerline can be determined with the following equation (Turner, 1970): l 0 -%(fg)2 X(x,o,o;H) = r oy az u

• 1 X = Concentration ,

x = Distance down wind from release ,

Q = Release rate

= Stack height l H '

u = Wind speed affecting plume' oy = Horizontal dispersion coefficient -

az = Vertical dispersion coefficient A conservative wind speed value of 1 m/sec will be used for the concentration calculations. The actual average wind speed for the Oak Ridge area is approximately 2 m/sec. The horizontal and vertical dispersion coefficients are for stability category F (Turner, 1970) and provide conservative values for atmospheric stability.

~ -20 At 100m, 500m, 1 km, 2km, and 5 km, concentrations of 4.85 3 x 10 mg/m 3 , 0.18 mg/m 3 , 0.55 mg/m 3

, 0.40 mg/m3 , and 0.16 mg/m ,

respectively, result from the release. All of these values are well below the TLV of 2.5 mg/m 3 for HP. The low concentrations closer to the stack are due to the inability of the plume to disperse to ground level in that short time.

Concentrationsencounteredbythe_gfosestpublicreceptor,at approximately 100m, are 4.85 x 10 mg/m . 3 This value is below the detectable limit.

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Expected Water Usage AlChemIE Fei1ity-1, CPDF and Fei1ity-2 Oliver Springs For piping design, 50 gpn was uH14*M at CPDF and 75 gpn at Oliver Springs. Actual flow rates are otsuputed as folicws.

1. Assune 100 gal / day per person

2. Maxinun of 50 people at each feility Water Usage = 100 x 50 = 5000 gal / day = 3.5 gal / min

'Iherefere actual water flow rate to the CFDF water treatenent plant and the City of Oliver Springs treatment plant is conservatively estimated to be about 3.5 gpm.

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