ML19226A156
| ML19226A156 | |
| Person / Time | |
|---|---|
| Site: | Wood River Junction |
| Issue date: | 05/16/1979 |
| From: | UNITED NUCLEAR CORP. (SUBS. OF UNC, INC.) |
| To: | |
| Shared Package | |
| ML19224C807 | List: |
| References | |
| FOIA-81-57 NUDOCS 7907060494 | |
| Download: ML19226A156 (7) | |
Text
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DECOMMISSIONING PLAIJ FOR UNC RECOVERY SYSTE?:S LICENSE NO. SNM-777 DOCKET 70-820
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May 16, 1979
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DECOMMISSIONING PLAN FOR UNC RECOVE RY S YS'l E MS LICENSE NO. SNM-777 DOCKET 70-820 I.
INTRODUCTION This plan for the decommissioning of those facilities of UNC Recovery Systems which are presently licensed by the United States Nuclear Regulatory Commission (USNRC) has been prepared as required by the USNRC in Condition 21 of Amendnent 4 to Special Nuclear Materials License SNM-777.
The decommissioning activities covered by this plan are for the existing licensed facility, with the exception of the lagoon system.
As is defined in Condition 25 of Amendmen t No. 6 to License SNM-777, the decontamination of those lagoons to release limits is to be completed by July 1,
1982.
As that date pre-cedes any anticipated decommissioning of the recovery facility, that activity is not included in this plan.
These facilities are licensed to receive, process, store, and ship unirradiated scrap uranium of any enrichment in the U-235 isotope (Special Nuclear Material or SNM), as well as natural or depleted uranium or thorium (Source Material or SM).
The facilities and their operation are described in detail in the license application.
Any major modi fications are presented to the USNRC, and approved by them as amendments to this license, as operating conditions dictate.
Operations parformed at this facility include receipt of unirra-diated scrap uranium in USNRC approved shipping containers, operational pre-treatment, disss '. u t io n, chemical purification, conversion to a concentrated form (generally an oxide), pack-aging for shipment, and shipment to the customer.
'I.
DECOMMISSIONING TIMING There are no structures or components of the existing plant that could not be repaired or replaced by conventional maintenance and construction practices; i.e. there are none which emanate penetrating radiation.
As long as equipment ac e. n1 and replace-ment is practicable, the useful life of this p_
at is a function solely of the need and economics of its services.
Therefore, neither the useful life of the plant or the time when decontami-nation and d7 commissioning will be required can be meaningfully estimated.
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DECOMMIESIONING PLAN - SNM-777 Page 2 Should operations be terminated, the facilities could readily be decontaminated and r e lea s ed for nenoral use.
Any 1icensed ma t e r i.a l s (SNM or SM) will be disposed of in compliince with regulatory requirements (e.g. returned to the government or at.er customers, sold, or buried)'.
III.
DECOM1[SSIOMING COST The cost of decontamination and decorrmissioning is estimated at $10 per square foot for the chemical area (1978 dollars)
Associated costs are tabulated below:
Decontamination of Chemical Area (process 133,750 bnilding and equipment)-13,375 square feet Burial of contaminated (uneconomical to 100,000 salvage) equipment
- Burial of residua? process waste 800,000 (sludge or solids remaining after chemical treatment)
- Total
$1,033,750
- Basis f or burial costs is a maximum of 12,500 ft3 or contaminated equipment, and 100,000 ft 3 of other materials,
at a total cost of $8.00 per fL 3 including costs of packaging, transportation, and burial.
Current burial costs at Chem-Nuclear's Barnwell, S.C.
facility are $3.60 per cubic foot.
These estimated costs are based on experience in the decommis-sioning of the following facilities:
1969 General Electric, San Jose, CA 1972 United Nuclear Corporation (removal and burial of lagoon A), Wood River Junction, P.I 1974 United Nuclear Corporation, Pawling, NY 1976 United Nuclear Corporation, New Haven, CT Decommissioning of this facility is within the economic and technical capability of the company.
IV.
DECOMMISSIONING S"LDULE It.is expected that the schedule for actual decommissioning will generally be in accordance with the following sequence-
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DECOf/flI S S I ON I NG PI.AN - StJM-7 7 7 Page 3 A.
Decision to Decommission The decision to decommission the facilition operated under Special nuclear Materials Licen,e SNM-777 by t he UNC Itecovery Systems Di. vision of Unitcd Ndclear Corporation, e UNC Resources Company, will be made by the parent company.
The factors which may result in such a decision are not pertinent to this plan, which is concerned only with pteplanned actions to be taken to prepare the facility for unrestricted uses.
B.
Motification to Re_gulatory Aaencies and Customers Tne chief executive officer of CNC Resources, or his delegate, will inform all cognizant regulatory agencies and customers of the decision to terminate licensed operations, decommis-sion the facility, and prepare it for un rest ricted use by decontamination or removal o f SNM and other radioactive materials.
Agencies which shall be notified include, but a re not limited to, the United States Nuclear Regulatory Commission, the United States Environmental Protection Agency, and the Department of IIeal th and the Departrent of Environ-mental Management of the State of Bhode Island.
C.
Selection of a P roj ec t Manager and Decommissioning Tea _m 1.
A project manager will be selected and delegated the necessary authori ty for the decommissioning e f fort As an alternative, the company may elect to purchase them services from another organization.
2.
A decommi.ssioning team will be established under the direction OE the project manager to perform the following functionn:
--- Health Physics (Padiation Protection)
--- En vironmen tal Con t ro ls
--- Special Nuclear Materials Control (until all Special IJuclear Material has been accounted for and removed)
--- Maintenance
--- Finance
--- Purchasing
--- Transportation
--- Clerica1 D.
Accounting and Disposition o f SN'~
Accounting f or and dispo:;i t ion o f Speci a l Nuclea r Materials and other than exempt quantit,,ies of,4 urce Materials will be
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DI:CO D1ISSIGNING P L.TN - SN'1-7 7 7 Page 4 accomplished using methods established by the current license.
Material will be s' 'n t to UNC's custocers or trans-f^rred to the federal governrent er another licensee.
All sionificant quantities will be physically renoved.
Smaller amounts contained in wastes or as low level contamination will be designated for burial in a USNRC approved location.
E.
Plan fr-Decommissioning An internal plan, with a time schedule, will be established to assure that all essential activities are provided for.
This plan will establish priorit.ies, provide for in~ven to ry and disposition of salvajeable equipnent, and assure that adequate supplies and personnel are available.
An outline of such a plan will normally include the following elements:
1.
List all activitie.1 to be performed.
2.
Enlist appropriate help f rom other UNC divisions (e.g.,
Naval Products Division, United Nuclear Industries) 3.
Formulate a Critical Path Chart of Operations.
4.
Establish Priorities.
5.
Notify Regulatory Agencies OE in nr 6.
Provide financial services (i.e. salaries, purchasing).
7.
Establish supply and subcontractor logistics.
8.
Inventory all plant equipment.
9.
Arrange for disposition of non-essential equipment.
10.
Perform decontamination and disposal.
11.
Request and obtain clearance from Regulatory Agencies.
12.
Release for unrestricted use.
The final plan will incluJe ma intenance of the personnel and environmental monitoring and control programs to prevent personnel exposure or environnental release of prohibited materials to the environment.
F.
Decontamination a n d D i s p_o_s a l_
Decontamination of equipment and disposal of radioactive nql
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DECOMMIGSIONING PLAN - SNM-777 Page 5 material as noted in item nurber 10 of the above plan outline is the primary activit;, of the decoamissioning program.
This topic is therefore turther expanded into a more detailed outline to illustrate the n ur"b e r and sequence of the required activities.
1.
Survey all plant equipment and operating areas.
2.
Remove all non-salvageable items and package for burial.
3.
Temporarily retain equiprent (such as exhaust systems and hoods) useful in decontamination.
4.
Provide a collection and processing system for decon-tamination of wastes.
For example, an evaporation or solidification system may be used to consolidate and paciage cleaning wastes.
5.
Perform initial decontanination activities.
6.
Separate decontaminated ittms for final radiation survey before disposition (e.g. by resale).
7.
Dispose of all hazardous chemicals and c;ases in accord-ance with regulatory requ.irements.
8.
Dismantle remaining equipment, survey, and decontaminate.
9.
helease decontaminated equipment for disposition.
Package contaminated equipment and material for burial.
10.
Perform radiation survey of remaining building, identi-fying areas for decontamination.
11.
Decontaminate, u s i r< g standard tret bods such as alkali or acid wash, steam jet, or ab ra s i vo cleaning.
12.
Resurvey to identify areas still contaminated.
13.
Using standard demolition r,ethods (e.g. j a ckh ammer),
remove items that could not readily be decontaminated.
14.
Package contaminated materials for burial.
15.
Resurvey building and adj acen t areas for radioactive contaminaLion.
16.
Notify USNRC that buildings and areas have been cleaned to regulatory limitc..
17.
Prepare fina1 report of decontaminalion.
38.
Release buildings and dreas typarent company for normal usage.
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DFCOf 11SHION I NG P !,1\\M - !;NM-7 7 7 Page 6 The actual details of the decon t amina t ion, dismantling, and disposal of contaminated equipment will rcquire exten-sive planning and scheduling.
In many cases, the cost of decontamination in time and roney will exceed the cost of direct disposal by burial.
Decisions to decontaminate or not will be made at the time of decommissioning.
As noted in Section III,'UNC as a corporation has previous experience in decommissioning facilittes which have operated with unirradiated highly enriched uranium.
This experience has shown that the decontamination and decorrissioning activities can be successfully perforced using standard industrial techniques.
Since processing at this facility does not result in activation of the processed caterials, and since high levels of penetrating radiation are not present, special precautions and techniques beyond those normally in use will not be required to assure protection of personnel or the environment.
The specific techniques to be utilized to assure such protection, and to per form the decon-tamination work will be established at the time of decommission-ing.
Co rpo ra te-w ide resources (in pa rticula r exper ienced manpo-er from other divisions) will be deployed as necessary.
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