ML19294C144
| ML19294C144 | |
| Person / Time | |
|---|---|
| Site: | 07000008 |
| Issue date: | 02/22/1980 |
| From: | Ayer J, Burkhardt W NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Rouse L NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| Shared Package | |
| ML19294C137 | List: |
| References | |
| REF-PROJ-M-3 NUDOCS 8003070172 | |
| Download: ML19294C144 (9) | |
Text
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Distribution:[DCS
- Docket File Project File NMSS R/F FEB 2 21980 FCAF R/F LCRouse
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WBurkhardt Docket No. 70-8 M-3 JEAyer JShafer
!fEMORANDUM FOR: Leland C. Rouse, Chief Advanced FueT and Spent Fuel Licensing Branch FROM:
J. E. Ayer/W. Burkhardt Advanced Fuel and Spent Fuel Licensing Branch g
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SUBJECT:
FEATURES OF BATTELLE - COLUMBUS LABORATORIES'-
HEST JEFFERSON SITE AFFECTING SOURCE TERM The purpose of tnis memorandum is to recomen~d endorsement of the attached review as a staff position and a basis for succeeding increments of the analysis of the effects of natural phenomena upon existing plutonium fabrication facilities. A draft of the subject report has been reviewed and commented upon by Dr. J. E. Carson, Argonne National Laboratory (ANL); Dr. R. P. Kennedy Engineering Cecision Analysis Corporation (EDAC); Prof. J.R. Mcdonald, Texas Tech University (TT); Dr. F. J. Tokarz, Lawrence Livermore Laboratory (LLL); Dr. W. J. Hall, University of Illinois; W. Burkhardt, NRC; and J. E. Ayer, NRC.
We recomend that this review including its sumary and conclusions be adopted as a staff position subject to your approval.
Subsequent to your approval we will make copies available to the public and to Battelle Columbus in accordance with review and documentation procedures agreed upon and described in our February 10, 1977 memorandum to R. M. Bernero.
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i J. E. Ayer Advanc Fuel and Spent Fuel Licensing Branch W. Burkhardt Advanced Fuel and Spent Fuel Licensing Branch
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Approved by M d C Sc:n.y Leland C. Rouse, Chief Advanced Fuel and Spent Fuel Licensing Branch Division of Fuel Cycle and Material, Safety
Enclosure:
" Identification of Features Within J.
Pu Fabrication Facilities Whose 8003070
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_.21J /on 2/n /80 2FC/80 NRC Form 318A (4 79) NRCM 02040
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NRC ANALYSIS OF THE EFFECT OF flATURAL PHEf!0?iEt!A UP0i!
EXISTIttG PLUT0flIUM PLAtlTS IllCRD4EitT OF AtlALYSIS -- Identification of Features Within Plutonium Fabricat, ion Facilities Whose Failure May Have a Significant Effect on the Source Term.
Features Observed in Battelle-Columbus Laboratories' West Jefferson Site in Columbus, Ohio 1.
Facility and Process Descriotion The West Jefferson Site of Battelle Memorial Institute Columbus Lab-oratories is composed of two areas -- the fluclear Sciences and Engineer Area (see Figure 1). The Engineering Area is not of concern in this study. The Huclear Sciences Area is composed of four facilities. They are:
- Jil-1 Hot Laboratory
- JN-2 Critical Assembly Laboratory
- Jil-3 Old Reactor Cuilding
- JN-4 Plutonium Laboratory A brief description of some of the features in each facility pertinent in this study is given below.
JN-1, HOT LABORATORY -- The sole function of the facility is the post irradiation examination of spent fuel elements by destructive and nondestructise methods.
Almost all the work is on light water reactor fuel, mostly uranium oxide but some mixed oxide (M0X). The plutonium present is that produced by the irradiation and, for f10X fuels, that are not consumed. There is a sufficient backlog of work to keep the facility in operation.
2 building consists of two sections -- JN-1A and The approximately 22,000 ft
-1B (see Figure 2). Jft-1B is the addition and houses the High Energy Cell and its ancillary function (e.g., transfer pool, service area, etc.) and its floor plan is shown in Figure 3.
All other functions are housed in JN-1A.
Each section is served by its own ventilation system. Both are based upon directional flow from areas of lesser contamination potential to areas of greater contamina-9
SUILDING NU MBERS. LOCATIONS -West Jef f erSon Site
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FIGURE 3.
JN-1B High Energy Cell Facility Floor Plan am
5 ion potential (hot cells).
In the Jil-1 A system, air is supplied to two areas -- (1) to the operating area of the alpha / gamma cell in the basement (not shown on Figure 2) and (2) to the operating area around the HLC, LLC, and !1TC at ground level. Airflow to and from the office / support area is by natural motion from heating / cooling and personnel movement. Air is exhausted from four iocations -- alpha / gamma cell, HLC, LLC, and MTC. All exhausts are passed through a minimum of a pre-or roughing filter /HEPA filter combination before release. There are provisions to divert the exhaust flow to an activated charcoal /HEPA filter system in the event of high activity emission.
The JN-1B system supplies air to the cell operating area and to the ser-vice areas and HEC mechanical equipment room. All air is exhausted via the HEC, which has 3 sets of 2 prefilter/HEPA filters located in the rear wall of the cell and a final bank of HEPA filters in the mechanical equipment room (seeFigure4).
Fire protection is provided in JN-1A by large, portable C02 extinguishers and fire hose in the cell operating areas and G-1 powder and soda ash in the HLC and LLC. There are no fire detectors in the cells. Ilanually operated dampers can be used to protect the HEPA filters in the event of a fire. The air intake duct for the HLC and LLC are not filtered. The HEC has an automatic water, on-and-off cycle, sprinkler system. Water enters the system when the heat detectors sees 190*F. Sprinkling is activated by the melting (212*F) of a fusible link at the sprinkler heads. Dampers at the inlet and outlet auto-matically close. Jil-1B is also provided with smoke detectors viewing air flow-ing from the operating area to HEC and from the service to operating areas.
The facility houses five hot cells.
They are:
- High Energy Cell (HEC) located in JN-18. The exterior is 1/2" painted mild steel with 4' thick high density concrete on the faces and 6' thick normal density concrete on the rear face. The ceiling is 4' thick nor-mal density concrete. The interior dimensions of the cell are 38' long x 9' wide x 25' high. The interior walls and floor are lined with 1/2' painted mild steel. The cell has four operating stations along its face and one at the end.
Each station is equiTped with manipulators and a lead glass /cil film viewing window. The cell is rates to handle at full, high burn-up, 60-day cooled, LWR fuel assembly.
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FIGURE 4.
Exhaust System liigh Energy Cell
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- High Level Cell (HLC) is located 'in JN-1A. The walls are 36" thick high density concrete poured into a 1/2" thick, painted, mild teel shell up to the manipulator slots with regular concrete for the rest of the height. The ceiling and floors are regular density con rete.
c The floor is lined with 1/2" thick stainless steel. The rear W ll is shared with the LLC. There are three 4' x 3' viewing windows (three 9" thick cerium stabilized panes and one 6" thick lead glass pane) with manipulators. The interior dimensions are 8' x 18' x 12' high.
7 The cell is rated at 10 curies of 1 Mev gamma.
Low Level Cell (LLC) is located in JN-1A. The cell is back-to-back with the HLC and foms a 24' x 24' block.
Its interior dimensions are 8' x 20' x 12' high. The walls are 23" thick high density concrete encased in 1/2" thick, painted, mild steel up to the manipulator slots with regular density concrete encased in steel for the remainder of the wall height. The ceiling and floor are 30" thick regular density concrete. The cell floor is lined with 1/2" thick stainless steel.
The viewing windows are composed of a 7" and 9" pane of cerium stabilized glass followed by a 6" pane of lead glass. The cell is rated to con-4 tain up to 10 curies of 1 MeV gama.
- Mechanical Test Cell (MTC) is located in JN-1A adjacent to the HLC/ LLC.
The cell is rated to handle low levels of activity. The operating face is 8" thick, painted steel with five viewing windows of two 4" thick lead glass panes.
- Alpha Gamma Cell is located in the basement of JN-1A. The cell is made up of ten stations of which nine are or can be equipped with steel or glass fiber containment boxes.
Each box is mounted on a movable section of the 6-3/4" thick lead encased in i" thick steel walls. The wall is designed to handle 2000 curies of 1 Mev Eimma. The viewing window at each station is constructed of a 5" and 6" thick pane of lead glass.
JN-2 FORMERLY THE CRITICAL ASSEMBLY LABORATORY -- The facility currently houses the SNM vault.
9
8 JN-3, FORMERLY THE REACTOR BUILDIllG -- The swimming pool type reactor has been decommissioned and a storage' area for 55 gal. metal drummed plutonium contaminated combustible waste constructed in the basement.
Jft-4, PLUT0!!IU!1 LABORATORY -- Currently, all accountable quantities of plutonium'have been removed from the facility and only trace quantities of contamination involved with structural components (i.e., drains, etc.) remain.
All plutonium handling equipment and enclosures have been removed. There are no plans to reinstall such equipment in the facility and BCL has agreed to repetition under those circumstances.
2.
Areas of Concern The designated area of concern at this site is the JN-i2 building and the HEC.
Inventories and duty cycles have not been received for the facility.
This evaluation is based upon the licensed possession limit. The specific items within the Jil-1B are:
the HEC and its exhaust system with special attention to features whose loss can provide an unobstructed pathway of significant dimensions from containment (i.e., viewing windows, manipulator ports, filters, transfer pool, etc.
- garage type doors natural gas lines to emergency electrical generator e
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